ENG/中
老虎证券
市场
行情
24/7新闻
产品
Cash Boost账户
期权
A股通
港股
固定票息票据
美股
ETF
基金超市
美国国债
新加坡股
期货
Tiger BOSS Debit Card
老虎钱袋子
功能
经纪人
定投
CPF/SRS 投资
专栏
美股碎股
TigerAI
费用
综合账户
股票与ETF
期权、窝轮与牛熊证
期货
债券
基金超市
Cash Boost
股票与ETF
融资利率
活动
帮助
账户操作
如何开户
开户文件
账户类型
资金与转仓
入金
DDA快捷入金
出金
转入股票
转出股票
货币兑换
产品与交易
可交易产品
订单类型
交易规则
申报
融资融券
保证金与杠杆
风险管理
做空风险
基金超市
基金开户与交易
Cash Boost账户
Cash Boost 账户FAQ
如何开通 Cash Boost 账户
如何用Cash Boost 账户交易
如何绑定CDP证券账户
Tiger Boss Debit Card
常见问题
费用说明
如何充值
如何使用我的Debit card
账单报表
账单报表
股息（分红）
机构
Tiger Fund Management
机构服务
财富及资产管理人
自营交易机构
介绍经纪商
三方服务商
老虎API平台
登录
立即注册
Toggle
美股
详情
本页面由Tiger Trade Technology Pte. Ltd.提供服务
Altimmune, Inc.
4.31
-0.1500
-3.36%
盘后：
4.31
-0.0011
-0.03%
17:36 EST
成交量：
299.50万
成交额：
1,299.39万
市值：
5.40亿
市盈率：
-4.08
高：
4.47
开：
4.40
低：
4.29
收：
4.46
52周最高：
7.73
52周最低：
2.90
股本：
1.25亿
流通股本：
1.24亿
量比：
1.05
换手率：
2.42%
股息：
- -
股息率：
- -
每股收益(TTM):
-1.0561
每股收益(LYR):
-1.3388
净资产收益率：
-52.61%
总资产收益率：
-30.87%
市净率：
2.91
市盈率(LYR):
-3.22
数据加载中...
总览
公司
新闻资讯
公告
2026/02/06
员工持股计划
Form S-8 - Securities to be offered to employees in employee benefit plans
2026/02/04
重要事件披露
Form 8-K - Current report
2026/01/28
重要事件披露
Form 8-K - Current report
2025/12/19
重要事件披露
Form 8-K - Current report
2025/12/01
重要事件披露
Form 8-K - Current report
2025/11/06
重要事件披露
Form 8-K - Current report
2025/11/06
季度报告
Form 10-Q - Quarterly report [Sections 13 or 15(d)]
2025/11/06
重要事件披露
Form 8-K - Current report
2025/10/03
重要事件披露
Form 8-K - Current report
2025/09/25
重要事件披露
Form 8-K - Current report
2025/08/12
SEC问询函
Form CORRESP - Correspondence
2025/08/12
季度报告
Form 10-Q - Quarterly report [Sections 13 or 15(d)]
2025/08/12
重要事件披露
Form 8-K - Current report
2025/06/26
重要事件披露
Form 8-K - Current report
2025/05/13
季度报告
Form 10-Q - Quarterly report [Sections 13 or 15(d)]
2025/05/13
重要事件披露
Form 8-K - Current report
2025/03/13
重要事件披露
Form 8-K - Current report
2025/03/12
SEC问询函
Form CORRESP - Correspondence
2025/02/27
年度报告
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]
2025/02/27
员工持股计划
Form S-8 - Securities to be offered to employees in employee benefit plans
更多
{"basename":"/hans","ssrTDKData":{"titleTemplate":"%s - 老虎证券","title":"老虎证券全球投资理财平台| 一站式投资美股新股港股A股","description":"老虎证券助您一站式投资美股，新股，港股，A股等全球金融理财产品。新加坡华人最信赖的在线投资平台，现在加入即享低费用，24/5 无时差炒美股投资理财！","keywords":"老虎证券,老虎证券开户,老虎券商,老虎证券官网,老虎证券app,tigertrade老虎证券,股票,炒股,新加坡股票交易平台,投资,投资理财","social":{"ogDescription":"老虎证券助您一站式投资美股，新股，港股，A股等全球金融理财产品。新加坡华人最信赖的在线投资平台，现在加入即享低费用，24/5 无时差炒美股投资理财！","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/hans/stock/ALT/filings"},"companyName":"老虎证券"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"ALT","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ALT\",,,,,undefined,":{"symbol":"ALT","market":"US","secType":"STK","nameCN":"Altimmune, Inc.","latestPrice":4.31,"timestamp":1772226000000,"preClose":4.46,"halted":0,"volume":2994998,"hourTrading":{"tag":"盘后","latestPrice":4.3089,"preClose":4.31,"latestTime":"17:36 EST","volume":39155,"amount":168635.80809,"timestamp":1772231789082,"change":-0.0011,"changeRate":-0.000255,"amplitude":0.016404},"delay":0,"changeRate":-0.03363228699551578,"floatShares":124000000,"shares":125231517,"eps":-1.056106,"marketStatus":"盘后交易","change":-0.15,"latestTime":"02-27 17:37:02 EST","open":4.4,"high":4.47,"low":4.29,"amount":12993870.702952,"amplitude":0.040359,"askPrice":4.35,"askSize":685,"bidPrice":4.3,"bidSize":1014,"shortable":3,"etf":0,"ttmEps":-1.056106,"tradingStatus":3,"nextMarketStatus":{"tag":"收盘","tradingStatus":0,"beginTime":1772240400000},"marketStatusCode":4,"adr":0,"adrRate":0,"exchange":"NASDAQ","adjPreClose":4.46,"preHourTrading":{"tag":"盘前","latestPrice":4.4,"preClose":4.46,"latestTime":"09:29 EST","volume":9472,"amount":42109.490432000006,"timestamp":1772202599909,"change":-0.06,"changeRate":-0.013453,"amplitude":0.042601},"postHourTrading":{"tag":"盘后","latestPrice":4.3089,"preClose":4.31,"latestTime":"17:36 EST","volume":39155,"amount":168635.80809,"timestamp":1772231789082,"change":-0.0011,"changeRate":-0.000255,"amplitude":0.016404},"volumeRatio":1.050568,"optionData":{"bulkOrders":[{"symbol":"ALT","call":true,"expireDate":1772773200000,"strike":"4.5","timestamp":1772225920252,"price":0.16,"volume":1327,"amount":21232,"type":"-"}]},"impliedVol":0.5578,"impliedVolPercentile":0.0159},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ALT\",,,,,undefined,":{"symbol":"ALT","floatShares":124000000,"roa":"-30.87%","roe":"-52.61%","lyrEps":-1.338795,"volumeRatio":1.050568,"shares":125231517,"dividePrice":0,"high":4.47,"amplitude":0.040359,"preClose":4.46,"low":4.29,"week52Low":2.9,"pbRate":"2.91","psRate":"26987.39","week52High":7.73,"institutionHeld":0.8439,"latestPrice":4.31,"committee":0.193643,"eps":-1.056106,"divideRate":0,"volume":2994998,"delay":0,"ttmEps":-1.056106,"open":4.4,"prevYearClose":3.61,"prevWeekClose":4.38,"prevMonthClose":5.6,"prevQuarterClose":3.61,"fiveDayClose":4.38,"twentyDayClose":5.1,"sixtyDayClose":4.93,"earningDate":1772640000000,"earningTime":"盘前"},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/ALT\",params:#limit:5,,,undefined,":[{"date":"2026-03-05","symbol":"ALT","type":"earning","reportTimeType":"pre","market":"US","fiscalQuarterEnding":"2025/12","expectedEps":-0.25,"defaultRemindTime":1772701200000,"name":null,"time":"盘前","dateTimestamp":1772686800000,"actualEps":null},{"market":"US","date":"2025-11-06","symbol":"ALT","fiscalQuarterEnding":"2025/09","expectedEps":-0.29,"name":null,"time":"盘前","type":"earning","dateTimestamp":1762405200000,"reportTimeType":"pre","actualEps":-0.21},{"market":"US","date":"2025-08-12","symbol":"ALT","fiscalQuarterEnding":"2025/06","expectedEps":-0.32,"name":null,"time":"盘前","type":"earning","dateTimestamp":1754971200000,"reportTimeType":"pre","actualEps":-0.27},{"market":"US","date":"2025-05-13","symbol":"ALT","fiscalQuarterEnding":"2025/03","expectedEps":-0.35,"name":null,"time":"盘前","type":"earning","dateTimestamp":1747108800000,"reportTimeType":"pre","actualEps":-0.26},{"market":"US","date":"2025-02-27","symbol":"ALT","fiscalQuarterEnding":"2024/12","expectedEps":-0.34,"name":null,"time":"盘前","type":"earning","dateTimestamp":1740632400000,"reportTimeType":"pre","actualEps":-0.33}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"ALT\",market:\"US\",,,undefined,":[],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"ALT\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.1818,"buy":0.6364,"hold":0.0909,"sell":0.0909,"strongSell":0,"meanLabel":"BUY","meanPercent":0.6364,"analysts":11,"updateTime":1770008400000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/ALT\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"ALT","date":"2026-02-26","current":-4.142577,"percent":0.207317,"low":-13.368823,"twenty":-6.874798,"median":-5.022421,"eighty":-3.28059,"high":-1.406077,"avg":-5.249123,"sd":2.338865,"marketCap":571055717},"quantilePoints":[{"date":"2021-03-05","current":-9.757054,"twenty":-7.837321,"median":-0.998372,"eighty":-0.603077,"marketCap":478529611},{"date":"2021-03-12","current":-12.637421,"twenty":-8.231895,"median":-1.002367,"eighty":-0.603464,"marketCap":619795694},{"date":"2021-03-19","current":-12.381053,"twenty":-8.510418,"median":-1.005411,"eighty":-0.603464,"marketCap":607222273},{"date":"2021-03-26","current":-10.443215,"twenty":-8.587786,"median":-1.00739,"eighty":-0.605274,"marketCap":512182002},{"date":"2021-04-01","current":-10.556318,"twenty":-8.78138,"median":-1.016675,"eighty":-0.605274,"marketCap":517729100},{"date":"2021-04-09","current":-9.726893,"twenty":-9.292271,"median":-1.021158,"eighty":-0.6069,"marketCap":477050385},{"date":"2021-04-16","current":-9.251859,"twenty":-9.464501,"median":-1.024724,"eighty":-0.607307,"marketCap":453752575},{"date":"2021-04-23","current":-9.380043,"twenty":-9.464501,"median":-1.029527,"eighty":-0.607307,"marketCap":460039286},{"date":"2021-04-30","current":-10.910709,"twenty":-9.499174,"median":-1.032222,"eighty":-0.607307,"marketCap":535110005},{"date":"2021-05-07","current":-10.005881,"twenty":-9.568548,"median":-1.035738,"eighty":-0.608615,"marketCap":490733225},{"date":"2021-05-14","current":-10.088824,"twenty":-9.690182,"median":-1.043356,"eighty":-0.610709,"marketCap":494801097},{"date":"2021-05-21","current":-8.930849,"twenty":-9.656014,"median":-1.045001,"eighty":-0.612319,"marketCap":536054794},{"date":"2021-05-28","current":-8.0639,"twenty":-9.614543,"median":-1.047082,"eighty":-0.613503,"marketCap":484018069},{"date":"2021-06-04","current":-8.255139,"twenty":-9.601725,"median":-1.054534,"eighty":-0.614487,"marketCap":495496759},{"date":"2021-06-11","current":-9.160335,"twenty":-9.601725,"median":-1.060147,"eighty":-0.617301,"marketCap":549829222},{"date":"2021-06-18","current":-10.18665,"twenty":-9.645972,"median":-1.061987,"eighty":-0.619095,"marketCap":611431522},{"date":"2021-06-25","current":-10.250396,"twenty":-9.735941,"median":-1.064048,"eighty":-0.619675,"marketCap":615257751},{"date":"2021-07-02","current":-5.953899,"twenty":-9.75253,"median":-1.073166,"eighty":-0.622777,"marketCap":357369863},{"date":"2021-07-09","current":-5.871029,"twenty":-9.740466,"median":-1.078488,"eighty":-0.625409,"marketCap":352395764},{"date":"2021-07-16","current":-5.603295,"twenty":-9.713792,"median":-1.081387,"eighty":-0.626526,"marketCap":336325599},{"date":"2021-07-23","current":-5.660666,"twenty":-9.692161,"median":-1.084345,"eighty":-0.626829,"marketCap":339769206},{"date":"2021-07-30","current":-5.781784,"twenty":-9.672603,"median":-1.09804,"eighty":-0.627284,"marketCap":347039042},{"date":"2021-08-06","current":-6.53399,"twenty":-9.646554,"median":-1.106702,"eighty":-0.627284,"marketCap":392188554},{"date":"2021-08-13","current":-6.989861,"twenty":-9.629384,"median":-1.114155,"eighty":-0.627315,"marketCap":475890082},{"date":"2021-08-20","current":-7.373664,"twenty":-9.603233,"median":-1.117881,"eighty":-0.628565,"marketCap":502020486},{"date":"2021-08-27","current":-8.542517,"twenty":-9.583629,"median":-1.12906,"eighty":-0.630603,"marketCap":581599443},{"date":"2021-09-03","current":-9.554361,"twenty":-9.558349,"median":-1.132786,"eighty":-0.630952,"marketCap":650488690},{"date":"2021-09-10","current":-9.775338,"twenty":-9.591169,"median":-1.136512,"eighty":-0.630952,"marketCap":665533468},{"date":"2021-09-17","current":-8.862353,"twenty":-9.605176,"median":-1.137989,"eighty":-0.631686,"marketCap":603374780},{"date":"2021-09-24","current":-8.705343,"twenty":-9.600447,"median":-1.155144,"eighty":-0.635355,"marketCap":592685069},{"date":"2021-10-01","current":-6.949155,"twenty":-9.591169,"median":-1.16462,"eighty":-0.638289,"marketCap":473118675},{"date":"2021-10-08","current":-7.077089,"twenty":-9.559679,"median":-1.173775,"eighty":-0.638289,"marketCap":481828810},{"date":"2021-10-15","current":-6.984046,"twenty":-9.554182,"median":-1.181272,"eighty":-0.638815,"marketCap":475494167},{"date":"2021-10-22","current":-6.699101,"twenty":-9.550655,"median":-1.192207,"eighty":-0.641115,"marketCap":456094321},{"date":"2021-10-29","current":-6.280407,"twenty":-9.538907,"median":-1.192406,"eighty":-0.641912,"marketCap":427588426},{"date":"2021-11-05","current":-6.303668,"twenty":-9.536915,"median":-1.195875,"eighty":-0.642691,"marketCap":429172087},{"date":"2021-11-12","current":-5.254536,"twenty":-9.534318,"median":-1.207066,"eighty":-0.645626,"marketCap":440449772},{"date":"2021-11-19","current":-4.989681,"twenty":-9.517742,"median":-1.21849,"eighty":-0.645626,"marketCap":418248884},{"date":"2021-11-26","current":-4.928196,"twenty":-9.492985,"median":-1.222217,"eighty":-0.645626,"marketCap":413095106},{"date":"2021-12-03","current":-4.483618,"twenty":-9.492985,"median":-1.234811,"eighty":-0.645626,"marketCap":375829329},{"date":"2021-12-10","current":-4.455241,"twenty":-9.478066,"median":-1.237122,"eighty":-0.645626,"marketCap":373450662},{"date":"2021-12-17","current":-4.426864,"twenty":-9.474354,"median":-1.242711,"eighty":-0.645626,"marketCap":371071995},{"date":"2021-12-23","current":-4.351191,"twenty":-9.464501,"median":-1.250163,"eighty":-0.64856,"marketCap":364728884},{"date":"2021-12-31","current":-4.332272,"twenty":-9.444757,"median":-1.266932,"eighty":-0.649294,"marketCap":363143107},{"date":"2022-01-07","current":-3.916072,"twenty":-9.429228,"median":-1.270658,"eighty":-0.649294,"marketCap":328255996},{"date":"2022-01-14","current":-3.707971,"twenty":-9.419545,"median":-1.300468,"eighty":-0.649294,"marketCap":310812440},{"date":"2022-01-21","current":-3.305959,"twenty":-9.395156,"median":-1.357281,"eighty":-0.649294,"marketCap":277114663},{"date":"2022-01-28","current":-3.40528,"twenty":-9.375518,"median":-1.896273,"eighty":-0.649294,"marketCap":285439996},{"date":"2022-02-04","current":-3.622839,"twenty":-9.356009,"median":-2.181903,"eighty":-0.649294,"marketCap":303676441},{"date":"2022-02-11","current":-3.632298,"twenty":-9.294535,"median":-2.226131,"eighty":-0.651495,"marketCap":304469329},{"date":"2022-02-18","current":-3.339066,"twenty":-9.255468,"median":-2.240874,"eighty":-0.652962,"marketCap":279889774},{"date":"2022-02-25","current":-3.599191,"twenty":-9.25041,"median":-2.262988,"eighty":-0.65443,"marketCap":301694218},{"date":"2022-03-04","current":-3.277582,"twenty":-9.216158,"median":-2.281416,"eighty":-0.656631,"marketCap":274735996},{"date":"2022-03-11","current":-3.29177,"twenty":-9.164959,"median":-2.299844,"eighty":-0.656631,"marketCap":275925330},{"date":"2022-03-18","current":-3.187041,"twenty":-9.152685,"median":-2.321958,"eighty":-0.656631,"marketCap":309429796},{"date":"2022-03-25","current":-2.824576,"twenty":-9.120812,"median":-2.329329,"eighty":-0.656889,"marketCap":274238058},{"date":"2022-04-01","current":-2.749431,"twenty":-9.069815,"median":-2.351443,"eighty":-0.658485,"marketCap":266942209},{"date":"2022-04-08","current":-2.510734,"twenty":-9.026468,"median":-2.395671,"eighty":-0.660299,"marketCap":243767162},{"date":"2022-04-14","current":-2.31182,"twenty":-9.002244,"median":-2.403042,"eighty":-0.660299,"marketCap":224454623},{"date":"2022-04-22","current":-2.006819,"twenty":-8.981208,"median":-2.373557,"eighty":-0.660299,"marketCap":194842063},{"date":"2022-04-29","current":-1.997978,"twenty":-8.97802,"median":-2.3367,"eighty":-0.660463,"marketCap":193983728},{"date":"2022-05-06","current":-1.913993,"twenty":-8.974196,"median":-2.325643,"eighty":-0.661689,"marketCap":185829544},{"date":"2022-05-13","current":-2.19104,"twenty":-8.962867,"median":-2.314587,"eighty":-0.663967,"marketCap":222734186},{"date":"2022-05-20","current":-2.131593,"twenty":-8.93653,"median":-2.296159,"eighty":-0.664701,"marketCap":216691010},{"date":"2022-05-27","current":-2.13584,"twenty":-8.925681,"median":-2.280878,"eighty":-0.66787,"marketCap":217122666},{"date":"2022-06-03","current":-2.309934,"twenty":-8.905008,"median":-2.27773,"eighty":-0.668807,"marketCap":234820537},{"date":"2022-06-10","current":-3.630503,"twenty":-8.886226,"median":-2.28299,"eighty":-0.668883,"marketCap":369065367},{"date":"2022-06-17","current":-3.830074,"twenty":-8.882388,"median":-2.299844,"eighty":-0.671304,"marketCap":389353170},{"date":"2022-06-24","current":-4.369342,"twenty":-8.86636,"median":-2.31182,"eighty":-0.671304,"marketCap":444173406},{"date":"2022-07-01","current":-4.781223,"twenty":-8.859328,"median":-2.321958,"eighty":-0.671304,"marketCap":486043980},{"date":"2022-07-08","current":-5.379938,"twenty":-8.843395,"median":-2.329329,"eighty":-0.672112,"marketCap":546907391},{"date":"2022-07-15","current":-4.810947,"twenty":-8.833277,"median":-2.3367,"eighty":-0.673733,"marketCap":489065568},{"date":"2022-07-22","current":-5.554032,"twenty":-8.79056,"median":-2.3883,"eighty":-0.674765,"marketCap":564605263},{"date":"2022-07-29","current":-5.099688,"twenty":-8.752462,"median":-2.431168,"eighty":-0.674972,"marketCap":518418135},{"date":"2022-08-05","current":-5.26529,"twenty":-8.743932,"median":-2.458327,"eighty":-0.677129,"marketCap":535252696},{"date":"2022-08-12","current":-8.685942,"twenty":-8.727192,"median":-2.479782,"eighty":-0.678611,"marketCap":841987671},{"date":"2022-08-19","current":-8.585874,"twenty":-8.767651,"median":-2.479782,"eighty":-0.678611,"marketCap":832287353},{"date":"2022-08-26","current":-9.231316,"twenty":-8.857064,"median":-2.479782,"eighty":-0.678611,"marketCap":894854409},{"date":"2022-09-02","current":-11.212671,"twenty":-8.915344,"median":-2.479782,"eighty":-0.678611,"marketCap":1086920721},{"date":"2022-09-09","current":-9.996839,"twenty":-8.976745,"median":-2.479782,"eighty":-0.678611,"marketCap":969061848},{"date":"2022-09-16","current":-6.839679,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":663016789},{"date":"2022-09-23","current":-6.189234,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":599964717},{"date":"2022-09-30","current":-6.453807,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":625611519},{"date":"2022-10-07","current":-5.28636,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":512442952},{"date":"2022-10-14","current":-5.256037,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":509503508},{"date":"2022-10-21","current":-5.422815,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":525670447},{"date":"2022-10-28","current":-6.453807,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":625611519},{"date":"2022-11-04","current":-5.983796,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":580050148},{"date":"2022-11-11","current":-6.042666,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":525366485},{"date":"2022-11-18","current":-4.996929,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":434447121},{"date":"2022-11-25","current":-5.138245,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":446733522},{"date":"2022-12-02","current":-6.376172,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":554362390},{"date":"2022-12-09","current":-5.709161,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":496370580},{"date":"2022-12-16","current":-6.489225,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":564191510},{"date":"2022-12-23","current":-8.665489,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":753402078},{"date":"2022-12-30","current":-9.298584,"twenty":-9.046009,"median":-2.479782,"eighty":-0.678611,"marketCap":808445152},{"date":"2023-01-06","current":-8.077615,"twenty":-9.046009,"median":-2.550468,"eighty":-0.678611,"marketCap":702290652},{"date":"2023-01-13","current":-9.208142,"twenty":-9.082964,"median":-2.674285,"eighty":-0.678611,"marketCap":800581856},{"date":"2023-01-20","current":-8.111531,"twenty":-9.082964,"median":-2.74501,"eighty":-0.678611,"marketCap":705239388},{"date":"2023-01-27","current":-7.478436,"twenty":-9.082964,"median":-2.834635,"eighty":-0.678611,"marketCap":650196314},{"date":"2023-02-03","current":-8.569394,"twenty":-9.082964,"median":-3.041104,"eighty":-0.682837,"marketCap":745047326},{"date":"2023-02-10","current":-7.591488,"twenty":-9.082964,"median":-3.089794,"eighty":-0.692599,"marketCap":660025434},{"date":"2023-02-17","current":-6.760551,"twenty":-9.082964,"median":-3.29177,"eighty":-0.706713,"marketCap":587781399},{"date":"2023-02-24","current":-6.771856,"twenty":-9.082964,"median":-3.329607,"eighty":-0.719867,"marketCap":588764311},{"date":"2023-03-03","current":-6.742082,"twenty":-9.082964,"median":-3.358746,"eighty":-0.742102,"marketCap":571141998},{"date":"2023-03-10","current":-6.032389,"twenty":-9.082964,"median":-3.414739,"eighty":-0.768114,"marketCap":511021788},{"date":"2023-03-17","current":-6.404687,"twenty":-9.082964,"median":-3.495141,"eighty":-0.78253,"marketCap":542560259},{"date":"2023-03-24","current":-2.513011,"twenty":-9.082964,"median":-3.5046,"eighty":-0.796016,"marketCap":212884679},{"date":"2023-03-31","current":-2.454839,"twenty":-9.080548,"median":-3.499871,"eighty":-0.802556,"marketCap":207956793},{"date":"2023-04-06","current":-2.251239,"twenty":-9.080548,"median":-3.499871,"eighty":-0.804482,"marketCap":190709192},{"date":"2023-04-14","current":-2.681708,"twenty":-9.082964,"median":-3.5046,"eighty":-0.809804,"marketCap":227175549},{"date":"2023-04-21","current":-3.33323,"twenty":-9.082964,"median":-3.5046,"eighty":-0.816048,"marketCap":282367873},{"date":"2023-04-28","current":-2.885309,"twenty":-9.085381,"median":-3.51872,"eighty":-0.82152,"marketCap":244423150},{"date":"2023-05-05","current":-2.873674,"twenty":-9.085381,"median":-3.51872,"eighty":-0.831857,"marketCap":243437573},{"date":"2023-05-12","current":-3.100543,"twenty":-9.085381,"median":-3.51872,"eighty":-0.840814,"marketCap":262656329},{"date":"2023-05-19","current":-2.569103,"twenty":-9.085381,"median":-3.51872,"eighty":-0.844264,"marketCap":219290931},{"date":"2023-05-26","current":-2.431202,"twenty":-9.085381,"median":-3.51872,"eighty":-0.854355,"marketCap":207520115},{"date":"2023-06-02","current":-2.396553,"twenty":-9.085381,"median":-3.51872,"eighty":-0.858045,"marketCap":204562584},{"date":"2023-06-09","current":-2.361904,"twenty":-9.085381,"median":-3.51872,"eighty":-0.86619,"marketCap":201605053},{"date":"2023-06-16","current":-2.361904,"twenty":-9.085381,"median":-3.51872,"eighty":-0.879261,"marketCap":201605053},{"date":"2023-06-23","current":-2.402328,"twenty":-9.087797,"median":-3.53284,"eighty":-0.88307,"marketCap":205055506},{"date":"2023-06-30","current":-2.021189,"twenty":-9.090214,"median":-3.532909,"eighty":-0.895974,"marketCap":172522661},{"date":"2023-07-07","current":-1.940342,"twenty":-9.090214,"median":-3.532909,"eighty":-0.899395,"marketCap":165621755},{"date":"2023-07-14","current":-1.957666,"twenty":-9.090214,"median":-3.532909,"eighty":-0.906287,"marketCap":167100520},{"date":"2023-07-21","current":-1.836395,"twenty":-9.090214,"median":-3.532909,"eighty":-0.909901,"marketCap":156749161},{"date":"2023-07-28","current":-1.726673,"twenty":-9.090214,"median":-3.532909,"eighty":-0.919185,"marketCap":147383645},{"date":"2023-08-04","current":-1.795971,"twenty":-9.090214,"median":-3.532909,"eighty":-0.928329,"marketCap":153298707},{"date":"2023-08-11","current":-1.969804,"twenty":-9.090214,"median":-3.532909,"eighty":-0.937755,"marketCap":160166735},{"date":"2023-08-18","current":-1.743017,"twenty":-9.090214,"median":-3.532909,"eighty":-0.941735,"marketCap":141726485},{"date":"2023-08-25","current":-1.587507,"twenty":-9.090214,"median":-3.532909,"eighty":-0.945086,"marketCap":129081743},{"date":"2023-09-01","current":-1.639343,"twenty":-9.090214,"median":-3.532909,"eighty":-0.956324,"marketCap":133296657},{"date":"2023-09-08","current":-1.593986,"twenty":-9.090214,"median":-3.532909,"eighty":-0.958492,"marketCap":129608607},{"date":"2023-09-15","current":-1.807814,"twenty":-9.090214,"median":-3.532909,"eighty":-0.970251,"marketCap":146995128},{"date":"2023-09-22","current":-1.658782,"twenty":-9.090214,"median":-3.532909,"eighty":-0.979536,"marketCap":134877250},{"date":"2023-09-29","current":-1.619905,"twenty":-9.090214,"median":-3.532909,"eighty":-0.985303,"marketCap":131716065},{"date":"2023-10-06","current":-1.684701,"twenty":-9.090214,"median":-3.532909,"eighty":-0.991188,"marketCap":136984707},{"date":"2023-10-13","current":-1.69118,"twenty":-9.090214,"median":-3.532909,"eighty":-1.00206,"marketCap":137511571},{"date":"2023-10-20","current":-1.509751,"twenty":-9.090214,"median":-3.532909,"eighty":-1.006093,"marketCap":122759372},{"date":"2023-10-27","current":-1.503271,"twenty":-9.120812,"median":-3.537707,"eighty":-1.019689,"marketCap":122232508},{"date":"2023-11-03","current":-1.658782,"twenty":-9.120812,"median":-3.537707,"eighty":-1.028451,"marketCap":134877250},{"date":"2023-11-10","current":-1.677615,"twenty":-9.120812,"median":-3.537707,"eighty":-1.034911,"marketCap":131635733},{"date":"2023-11-17","current":-1.615988,"twenty":-9.120812,"median":-3.537707,"eighty":-1.035705,"marketCap":126800135},{"date":"2023-11-24","current":-1.924122,"twenty":-9.120812,"median":-3.537707,"eighty":-1.035705,"marketCap":150978127},{"date":"2023-12-01","current":-2.163781,"twenty":-9.120812,"median":-3.537707,"eighty":-1.035705,"marketCap":169783232},{"date":"2023-12-08","current":-4.505594,"twenty":-9.110613,"median":-3.544802,"eighty":-1.035771,"marketCap":353535971},{"date":"2023-12-15","current":-4.793186,"twenty":-9.110613,"median":-3.60865,"eighty":-1.041865,"marketCap":376102097},{"date":"2023-12-22","current":-5.402605,"twenty":-9.110613,"median":-3.686688,"eighty":-1.046438,"marketCap":423920792},{"date":"2023-12-29","current":-7.956688,"twenty":-9.120812,"median":-3.745808,"eighty":-1.059015,"marketCap":624329481},{"date":"2024-01-05","current":-8.00462,"twenty":-9.131012,"median":-3.795468,"eighty":-1.062066,"marketCap":628090501},{"date":"2024-01-12","current":-7.867672,"twenty":-9.131012,"median":-3.884844,"eighty":-1.073911,"marketCap":617344727},{"date":"2024-01-19","current":-7.388353,"twenty":-9.141211,"median":-4.008415,"eighty":-1.078488,"marketCap":579734518},{"date":"2024-01-26","current":-6.354395,"twenty":-9.131012,"median":-4.119442,"eighty":-1.078619,"marketCap":498603922},{"date":"2024-02-02","current":-6.765239,"twenty":-9.131012,"median":-4.20221,"eighty":-1.078619,"marketCap":530841245},{"date":"2024-02-09","current":-6.635138,"twenty":-9.131012,"median":-4.339366,"eighty":-1.078619,"marketCap":520632759},{"date":"2024-02-16","current":-6.12843,"twenty":-9.131012,"median":-4.37682,"eighty":-1.078619,"marketCap":480873395},{"date":"2024-02-23","current":-6.073651,"twenty":-9.131012,"median":-4.459875,"eighty":-1.082595,"marketCap":476575085},{"date":"2024-03-01","current":-8.285364,"twenty":-9.152685,"median":-4.505594,"eighty":-1.101931,"marketCap":650119339},{"date":"2024-03-08","current":-6.86795,"twenty":-9.152685,"median":-4.658612,"eighty":-1.122353,"marketCap":538900576},{"date":"2024-03-15","current":-6.864526,"twenty":-9.152685,"median":-4.78631,"eighty":-1.163594,"marketCap":538631931},{"date":"2024-03-22","current":-6.237989,"twenty":-9.152685,"median":-4.819439,"eighty":-1.201744,"marketCap":489470014},{"date":"2024-03-28","current":-7.125839,"twenty":-9.152685,"median":-4.887378,"eighty":-1.371955,"marketCap":630259092},{"date":"2024-04-05","current":-7.133855,"twenty":-9.15651,"median":-4.944847,"eighty":-1.549925,"marketCap":630968045},{"date":"2024-04-12","current":-6.733076,"twenty":-9.15651,"median":-4.976853,"eighty":-1.582323,"marketCap":595520402},{"date":"2024-04-19","current":-5.522726,"twenty":-9.15651,"median":-5.010669,"eighty":-1.603058,"marketCap":488468520},{"date":"2024-04-26","current":-5.771208,"twenty":-9.152685,"median":-5.065719,"eighty":-1.622497,"marketCap":510446059},{"date":"2024-05-03","current":-5.763193,"twenty":-9.152685,"median":-5.137904,"eighty":-1.632864,"marketCap":509737106},{"date":"2024-05-10","current":-5.900173,"twenty":-9.152685,"median":-5.17612,"eighty":-1.651056,"marketCap":547341314},{"date":"2024-05-17","current":-6.802306,"twenty":-9.152685,"median":-5.23434,"eighty":-1.663576,"marketCap":631029499},{"date":"2024-05-24","current":-5.648207,"twenty":-9.152685,"median":-5.250196,"eighty":-1.680449,"marketCap":523967191},{"date":"2024-05-31","current":-5.365414,"twenty":-9.152685,"median":-5.252552,"eighty":-1.69118,"marketCap":497733380},{"date":"2024-06-07","current":-5.143766,"twenty":-9.152685,"median":-5.262603,"eighty":-1.719691,"marketCap":477171745},{"date":"2024-06-14","current":-5.05205,"twenty":-9.15651,"median":-5.263947,"eighty":-1.733603,"marketCap":468663482},{"date":"2024-06-21","current":-4.539966,"twenty":-9.160335,"median":-5.26529,"eighty":-1.749497,"marketCap":421159014},{"date":"2024-06-28","current":-4.880081,"twenty":-9.164959,"median":-5.282272,"eighty":-1.761776,"marketCap":452710489},{"date":"2024-07-05","current":-5.044407,"twenty":-9.164959,"median":-5.287002,"eighty":-1.782905,"marketCap":467954460},{"date":"2024-07-12","current":-5.869855,"twenty":-9.164959,"median":-5.307752,"eighty":-1.813296,"marketCap":544528826},{"date":"2024-07-15","current":-6.038002,"twenty":-9.164959,"median":-5.325968,"eighty":-1.814927,"marketCap":560127308},{"date":"2024-08-02","current":-4.654611,"twenty":-9.22331,"median":-5.382384,"eighty":-1.858355,"marketCap":431794343},{"date":"2024-08-09","current":-4.4375,"twenty":-9.22331,"median":-5.382384,"eighty":-1.898763,"marketCap":449722870},{"date":"2024-08-16","current":-4.375927,"twenty":-9.22331,"median":-5.382384,"eighty":-1.922746,"marketCap":443482734},{"date":"2024-08-23","current":-4.740588,"twenty":-9.22331,"median":-5.382384,"eighty":-1.94836,"marketCap":480439628},{"date":"2024-08-30","current":-4.635397,"twenty":-9.22331,"median":-5.382384,"eighty":-1.963276,"marketCap":469778986},{"date":"2024-09-06","current":-4.481118,"twenty":-9.22331,"median":-5.382384,"eighty":-1.992315,"marketCap":454143376},{"date":"2024-09-13","current":-4.97902,"twenty":-9.22331,"median":-5.382384,"eighty":-2.006297,"marketCap":504603752},{"date":"2024-09-20","current":-5.308617,"twenty":-9.22331,"median":-5.392613,"eighty":-2.04582,"marketCap":538007099},{"date":"2024-09-27","current":-4.775651,"twenty":-9.22331,"median":-5.402605,"eighty":-2.071356,"marketCap":483993176},{"date":"2024-10-04","current":-4.312813,"twenty":-9.22331,"median":-5.402605,"eighty":-2.098777,"marketCap":437086348},{"date":"2024-10-11","current":-4.221648,"twenty":-9.22331,"median":-5.402605,"eighty":-2.13584,"marketCap":427847125},{"date":"2024-10-18","current":-4.761626,"twenty":-9.22331,"median":-5.402605,"eighty":-2.165516,"marketCap":482571757},{"date":"2024-10-25","current":-4.744094,"twenty":-9.22331,"median":-5.402605,"eighty":-2.226131,"marketCap":480794983},{"date":"2024-10-31","current":-4.740588,"twenty":-9.22331,"median":-5.402605,"eighty":-2.244588,"marketCap":480439628},{"date":"2024-11-08","current":-5.231477,"twenty":-9.225312,"median":-5.405129,"eighty":-2.271833,"marketCap":530189294},{"date":"2024-11-15","current":-5.809106,"twenty":-9.225312,"median":-5.445898,"eighty":-2.292553,"marketCap":601358704},{"date":"2024-11-22","current":-5.774753,"twenty":-9.225312,"median":-5.463564,"eighty":-2.309931,"marketCap":597802473},{"date":"2024-11-29","current":-5.888119,"twenty":-9.225312,"median":-5.498958,"eighty":-2.31901,"marketCap":609538036},{"date":"2024-12-06","current":-6.279744,"twenty":-9.225312,"median":-5.534802,"eighty":-2.33289,"marketCap":650079072},{"date":"2024-12-13","current":-5.90186,"twenty":-9.225312,"median":-5.583452,"eighty":-2.353729,"marketCap":610960528},{"date":"2024-12-20","current":-5.620165,"twenty":-9.225312,"median":-5.617263,"eighty":-2.367082,"marketCap":581799432},{"date":"2024-12-27","current":-5.496493,"twenty":-9.225312,"median":-5.622268,"eighty":-2.3962,"marketCap":568997000},{"date":"2025-01-03","current":-4.885009,"twenty":-9.225312,"median":-5.622268,"eighty":-2.406198,"marketCap":505696083},{"date":"2025-01-10","current":-5.11861,"twenty":-9.227313,"median":-5.624371,"eighty":-2.432957,"marketCap":529878456},{"date":"2025-01-17","current":-4.610184,"twenty":-9.227313,"median":-5.624371,"eighty":-2.450298,"marketCap":477246233},{"date":"2025-01-24","current":-4.850655,"twenty":-9.227313,"median":-5.624371,"eighty":-2.462386,"marketCap":502139852},{"date":"2025-01-31","current":-4.809432,"twenty":-9.227313,"median":-5.624371,"eighty":-2.492163,"marketCap":497872375},{"date":"2025-02-07","current":-4.747596,"twenty":-9.227313,"median":-5.624371,"eighty":-2.545445,"marketCap":491471158},{"date":"2025-02-14","current":-4.280394,"twenty":-9.227313,"median":-5.624371,"eighty":-2.577061,"marketCap":443106413},{"date":"2025-02-21","current":-4.555219,"twenty":-9.227313,"median":-5.624371,"eighty":-2.609749,"marketCap":471556263},{"date":"2025-02-28","current":-4.886485,"twenty":-9.227313,"median":-5.624371,"eighty":-2.682852,"marketCap":464504340},{"date":"2025-03-07","current":-4.528833,"twenty":-9.229315,"median":-5.62647,"eighty":-2.751011,"marketCap":430506348},{"date":"2025-03-14","current":-4.212868,"twenty":-9.229315,"median":-5.62647,"eighty":-2.800801,"marketCap":400471021},{"date":"2025-03-21","current":-4.682765,"twenty":-9.229315,"median":-5.62647,"eighty":-2.864367,"marketCap":445138943},{"date":"2025-03-28","current":-4.51263,"twenty":-9.229315,"median":-5.62647,"eighty":-2.887636,"marketCap":428966075},{"date":"2025-04-04","current":-3.613344,"twenty":-9.229315,"median":-5.62647,"eighty":-2.950267,"marketCap":343480914},{"date":"2025-04-11","current":-3.370294,"twenty":-9.227313,"median":-5.624371,"eighty":-3.036633,"marketCap":320376817},{"date":"2025-04-17","current":-3.564734,"twenty":-9.227313,"median":-5.624371,"eighty":-3.077604,"marketCap":338860095},{"date":"2025-04-25","current":-4.188563,"twenty":-9.229315,"median":-5.62647,"eighty":-3.116395,"marketCap":398160611},{"date":"2025-05-02","current":-4.188563,"twenty":-9.229315,"median":-5.62647,"eighty":-3.213748,"marketCap":398160611},{"date":"2025-05-09","current":-4.698968,"twenty":-9.229315,"median":-5.62647,"eighty":-3.305959,"marketCap":446679216},{"date":"2025-05-16","current":-5.195017,"twenty":-9.229315,"median":-5.62647,"eighty":-3.335282,"marketCap":468798303},{"date":"2025-05-23","current":-5.186029,"twenty":-9.229315,"median":-5.62647,"eighty":-3.341904,"marketCap":467987234},{"date":"2025-05-30","current":-5.042222,"twenty":-9.229315,"median":-5.61173,"eighty":-3.341904,"marketCap":455010118},{"date":"2025-06-06","current":-4.907403,"twenty":-9.1665,"median":-5.562525,"eighty":-3.341904,"marketCap":442844072},{"date":"2025-06-13","current":-6.426361,"twenty":-9.1665,"median":-5.534802,"eighty":-3.341904,"marketCap":579914856},{"date":"2025-06-20","current":-6.093808,"twenty":-9.168041,"median":-5.530847,"eighty":-3.339066,"marketCap":549905276},{"date":"2025-06-27","current":-3.244638,"twenty":-9.078131,"median":-5.526011,"eighty":-3.334336,"marketCap":292796172},{"date":"2025-07-03","current":-4.278249,"twenty":-8.981846,"median":-5.496493,"eighty":-3.33323,"marketCap":386069191},{"date":"2025-07-11","current":-3.954684,"twenty":-8.930849,"median":-5.462896,"eighty":-3.33323,"marketCap":356870681},{"date":"2025-07-18","current":-3.640107,"twenty":-8.858572,"median":-5.407653,"eighty":-3.33323,"marketCap":328483240},{"date":"2025-07-25","current":-3.694034,"twenty":-8.833277,"median":-5.382384,"eighty":-3.33323,"marketCap":333349659},{"date":"2025-08-01","current":-3.316542,"twenty":-8.74252,"median":-5.347811,"eighty":-3.316542,"marketCap":299284730},{"date":"2025-08-08","current":-3.163747,"twenty":-8.648531,"median":-5.308617,"eighty":-3.29177,"marketCap":285496544},{"date":"2025-08-15","current":-3.701442,"twenty":-8.585874,"median":-5.28636,"eighty":-3.28059,"marketCap":324786691},{"date":"2025-08-22","current":-3.550568,"twenty":-8.510418,"median":-5.26529,"eighty":-3.28059,"marketCap":311548103},{"date":"2025-08-29","current":-3.731616,"twenty":-8.456341,"median":-5.254536,"eighty":-3.28059,"marketCap":327434408},{"date":"2025-09-05","current":-3.580742,"twenty":-8.309672,"median":-5.247127,"eighty":-3.279988,"marketCap":314195820},{"date":"2025-09-12","current":-3.7115,"twenty":-8.255139,"median":-5.235483,"eighty":-3.28059,"marketCap":325669263},{"date":"2025-09-19","current":-3.892549,"twenty":-8.21689,"median":-5.210439,"eighty":-3.28059,"marketCap":341555569},{"date":"2025-09-26","current":-3.94284,"twenty":-8.111531,"median":-5.187316,"eighty":-3.28059,"marketCap":345968431},{"date":"2025-10-03","current":-3.952898,"twenty":-8.025162,"median":-5.164674,"eighty":-3.28059,"marketCap":346851004},{"date":"2025-10-10","current":-4.023306,"twenty":-7.942782,"median":-5.143766,"eighty":-3.28059,"marketCap":353029012},{"date":"2025-10-17","current":-3.912665,"twenty":-7.862815,"median":-5.126287,"eighty":-3.28059,"marketCap":343320714},{"date":"2025-10-24","current":-3.983073,"twenty":-7.799198,"median":-5.099688,"eighty":-3.28059,"marketCap":349498721},{"date":"2025-10-31","current":-4.093714,"twenty":-7.710945,"median":-5.053881,"eighty":-3.28059,"marketCap":359207019},{"date":"2025-11-07","current":-4.143879,"twenty":-7.648555,"median":-5.044407,"eighty":-3.28059,"marketCap":347733576},{"date":"2025-11-14","current":-5.044056,"twenty":-7.566386,"median":-5.044056,"eighty":-3.28059,"marketCap":423271942},{"date":"2025-11-21","current":-5.55813,"twenty":-7.566386,"median":-5.044056,"eighty":-3.28059,"marketCap":466410460},{"date":"2025-11-28","current":-6.540439,"twenty":-7.511606,"median":-5.044056,"eighty":-3.28059,"marketCap":548840945},{"date":"2025-12-05","current":-6.602611,"twenty":-7.446462,"median":-5.044056,"eighty":-3.28059,"marketCap":554058064},{"date":"2025-12-12","current":-6.639913,"twenty":-7.388353,"median":-5.044056,"eighty":-3.28059,"marketCap":557188335},{"date":"2025-12-19","current":-6.279319,"twenty":-7.280593,"median":-5.044056,"eighty":-3.28059,"marketCap":526929044},{"date":"2025-12-26","current":-4.948849,"twenty":-7.205023,"median":-5.042222,"eighty":-3.28059,"marketCap":415282692},{"date":"2026-01-02","current":-4.48878,"twenty":-7.158501,"median":-5.023558,"eighty":-3.28059,"marketCap":376676009},{"date":"2026-01-09","current":-5.307185,"twenty":-7.114457,"median":-5.022421,"eighty":-3.28059,"marketCap":445352424},{"date":"2026-01-16","current":-5.51531,"twenty":-7.007306,"median":-5.022421,"eighty":-3.28059,"marketCap":462817225},{"date":"2026-01-23","current":-6.9982,"twenty":-6.984046,"median":-5.022421,"eighty":-3.28059,"marketCap":587253932},{"date":"2026-01-30","current":-6.633981,"twenty":-6.949155,"median":-5.022421,"eighty":-3.28059,"marketCap":556690530},{"date":"2026-02-06","current":-7.342419,"twenty":-6.949155,"median":-5.022421,"eighty":-3.28059,"marketCap":616139063},{"date":"2026-02-13","current":-6.820092,"twenty":-6.936424,"median":-5.022421,"eighty":-3.28059,"marketCap":572308032},{"date":"2026-02-20","current":-6.700703,"twenty":-6.909634,"median":-5.022421,"eighty":-3.28059,"marketCap":562289511},{"date":"2026-02-26","current":-6.805169,"twenty":-6.874798,"median":-5.022421,"eighty":-3.28059,"marketCap":571055717}],"updateTime":1772211467214},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"ALT\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"20710131","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000011-ALT","pdf_url":"","pub_time":1770354000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form S-8 - Securities to be offered to employees in employee benefit plans","symbol":"ALT","title":"Form S-8 - Securities to be offered to employees in employee benefit plans","titleType":"员工持股计划","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/0001326190-26-000011-index.htm","us_notice_code":"Form S-8","us_title_en":"Form S-8 - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xs8.htm","primary":true,"translateUrl":"","linkName":"alt-20260206xs8.htm","type":"S-8","id":"NTFILEBQ2ee5C6q77fYZwm","market":"us","size":75915},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xex5d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260206xex5d1.htm","type":"EX-5.1","id":"NTFILEGyAw6bw3BRgLsspW","market":"us","size":9215},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xex23d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260206xex23d1.htm","type":"EX-23.1","id":"NTFILEGTL7jXUGTzv3MsGk","market":"us","size":2487},{"description":"EX-FILING FEES","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xexfees.htm","primary":false,"translateUrl":"","linkName":"alt-20260206xexfees.htm","type":"EX-FILING FEES","id":"NTFILE5zdUmuSPnQY34Q1o","market":"us","size":17258},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"alt-20260206xex5d1001.jpg","type":"GRAPHIC","id":"NTFILE5KwyVFZp7fLR7wox","market":"us","size":4765}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"员工持股计划","pubTime":"2026-02-06 13:00","pubTimestamp":1770354000,"title_zh":"Form S-8 - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20696469","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000008-ALT","pdf_url":"","pub_time":1770152732000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/0001326190-26-000008-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000008/alt-20260202x8k.htm","primary":true,"translateUrl":"","linkName":"alt-20260202x8k.htm","type":"8-K","id":"NTFILEEUccgfXgEF57Q6Sm","market":"us","size":40731}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2026-02-04 05:05","pubTimestamp":1770152732,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"项目8.01：其他事项","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20672238","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000006-ALT","pdf_url":"","pub_time":1769576400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/0001326190-26-000006-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-4.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex4d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260127xex4d1.htm","type":"EX-4.1","id":"NTFILEAQk3Ui1KYSyXyz8t","market":"us","size":115261},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260127x8k.htm","type":"8-K","id":"NTFILEErrkpdqx7uAy562C","market":"us","size":55539},{"description":"EX-5.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex5d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260127xex5d1.htm","type":"EX-5.1","id":"NTFILE997883VcjWEYhfVe","market":"us","size":18757},{"description":"EX-10.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex10d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260127xex10d1.htm","type":"EX-10.1","id":"NTFILE4fCRWTiqsvicHcoR","market":"us","size":257080},{"description":"EX-10.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex10d2.htm","primary":false,"translateUrl":"","linkName":"alt-20260127xex10d2.htm","type":"EX-10.2","id":"NTFILEHRokYziPYVgoM26x","market":"us","size":81762},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"alt-20260127xex5d1001.jpg","type":"GRAPHIC","id":"NTFILEAQ1cHDwnnvtryavH","market":"us","size":5832}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2026-01-28 13:00","pubTimestamp":1769576400,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第1.01项：签订重大最终协议；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20552066","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465925122724-ALT","pdf_url":"","pub_time":1766120400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/0001104659-25-122724-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-1.htm","primary":true,"translateUrl":"","linkName":"tm2533869d1_ex99-1.htm","type":"EX-99.1","id":"NTFILE3D5w4ZZj6gugNkkF","market":"us","size":21875},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_8k.htm","primary":false,"translateUrl":"","linkName":"tm2533869d1_8k.htm","type":"8-K","id":"NTFILE3v1ZriYdCUFY7c6J","market":"us","size":42951},{"description":"EXHIBIT 99.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2.htm","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2.htm","type":"EX-99.2","id":"NTFILEFoS5siL8UNfWbrqu","market":"us","size":25051},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img01.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img01.jpg","type":"GRAPHIC","id":"NTFILE7dQh699vrDe7MkpU","market":"us","size":124151},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img02.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img02.jpg","type":"GRAPHIC","id":"NTFILE3MHH6SnLKXqQLDME","market":"us","size":360455},{"description":"GRAPHIC","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img03.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img03.jpg","type":"GRAPHIC","id":"NTFILE4rz5dNR1fGtrdop4","market":"us","size":204856},{"description":"GRAPHIC","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img04.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img04.jpg","type":"GRAPHIC","id":"NTFILE3nyovnduNwxtLyxs","market":"us","size":154695},{"description":"GRAPHIC","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img05.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img05.jpg","type":"GRAPHIC","id":"NTFILE6YifSz4ftRFrtjPm","market":"us","size":151115},{"description":"GRAPHIC","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img06.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img06.jpg","type":"GRAPHIC","id":"NTFILEHtk1dKGec6gsWQjV","market":"us","size":170896},{"description":"GRAPHIC","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img07.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img07.jpg","type":"GRAPHIC","id":"NTFILE2p5H78JmgtfzqRcK","market":"us","size":184227},{"description":"GRAPHIC","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img08.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img08.jpg","type":"GRAPHIC","id":"NTFILEBb9EjNim76bCSg4U","market":"us","size":150745},{"description":"GRAPHIC","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img09.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img09.jpg","type":"GRAPHIC","id":"NTFILE84FSuVCzHiCkBcQD","market":"us","size":168238},{"description":"GRAPHIC","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img10.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img10.jpg","type":"GRAPHIC","id":"NTFILE2yU8SQxLqzJU2Vp7","market":"us","size":169440},{"description":"GRAPHIC","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img11.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img11.jpg","type":"GRAPHIC","id":"NTFILE9Ddp26caUh252UrB","market":"us","size":155401},{"description":"GRAPHIC","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img12.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img12.jpg","type":"GRAPHIC","id":"NTFILEAnrgMT7bRn1SbxJV","market":"us","size":171776},{"description":"GRAPHIC","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img13.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img13.jpg","type":"GRAPHIC","id":"NTFILE6eNho2kzDyvo3GKk","market":"us","size":167070},{"description":"GRAPHIC","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img14.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img14.jpg","type":"GRAPHIC","id":"NTFILE54XBhf11Ld63x1yG","market":"us","size":190632},{"description":"GRAPHIC","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img15.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img15.jpg","type":"GRAPHIC","id":"NTFILEB3nLh7LfvJ3JxWBQ","market":"us","size":157289},{"description":"GRAPHIC","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img16.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img16.jpg","type":"GRAPHIC","id":"NTFILEAhrYWmqAECvmXsaL","market":"us","size":159292},{"description":"GRAPHIC","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img17.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img17.jpg","type":"GRAPHIC","id":"NTFILE79WHejxuAwAzCrTq","market":"us","size":185880},{"description":"GRAPHIC","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img18.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img18.jpg","type":"GRAPHIC","id":"NTFILE7LALqwXy5W1A2b3Q","market":"us","size":145602},{"description":"GRAPHIC","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img19.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img19.jpg","type":"GRAPHIC","id":"NTFILEDUCLJ5ULmaxEBeoV","market":"us","size":153049},{"description":"GRAPHIC","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-2img20.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-2img20.jpg","type":"GRAPHIC","id":"NTFILE99ZD6QJVijYxt3Sa","market":"us","size":172421},{"description":"GRAPHIC","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925122724/tm2533869d1_ex99-1img01.jpg","primary":false,"translateUrl":"","linkName":"tm2533869d1_ex99-1img01.jpg","type":"GRAPHIC","id":"NTFILEFYdhDrZrpbwcMqQy","market":"us","size":2812}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-12-19 13:00","pubTimestamp":1766120400,"title_zh":"Form 8-K - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第7.01项：法规FD披露；项目8.01：其他事件；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20472470","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465925117144-ALT","pdf_url":"","pub_time":1764565200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925117144/0001104659-25-117144-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925117144/tm2532420d1_ex10-1.htm","primary":true,"translateUrl":"","linkName":"tm2532420d1_ex10-1.htm","type":"EX-10.1","id":"NTFILE6jqewWJ9EqZCEsBi","market":"us","size":49128},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925117144/tm2532420d1_8k.htm","primary":false,"translateUrl":"","linkName":"tm2532420d1_8k.htm","type":"8-K","id":"NTFILEDRL4a8wmNkgXwUNt","market":"us","size":38739},{"description":"EXHIBIT 10.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925117144/tm2532420d1_ex10-2.htm","primary":false,"translateUrl":"","linkName":"tm2532420d1_ex10-2.htm","type":"EX-10.2","id":"NTFILE3GLEQdYLCLwJgUdq","market":"us","size":73353},{"description":"EXHIBIT 99.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925117144/tm2532420d1_ex99-1.htm","primary":false,"translateUrl":"","linkName":"tm2532420d1_ex99-1.htm","type":"EX-99.1","id":"NTFILE4VKFrod3KWfFgb9u","market":"us","size":16965},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465925117144/tm2532420d1_ex99-1img001.jpg","primary":false,"translateUrl":"","linkName":"tm2532420d1_ex99-1img001.jpg","type":"GRAPHIC","id":"NTFILE64BZ5Tz8WkyJSQbK","market":"us","size":4972}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-12-01 13:00","pubTimestamp":1764565200,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第5.02项：董事或某些高级职员的离职；选举董事；若干人员的委任：若干人员的补偿安排；第7.01项：法规FD披露；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20379130","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000067-ALT","pdf_url":"","pub_time":1762405200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000067/0001326190-25-000067-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 1.02: Termination of a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-1.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000067/alt-20251106xex1d1.htm","primary":true,"translateUrl":"","linkName":"alt-20251106xex1d1.htm","type":"EX-1.1","id":"NTFILEFDrNf8N5VH1h6P8R","market":"us","size":280616},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000067/alt-20251106x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20251106x8k.htm","type":"8-K","id":"NTFILEDnRhBKxHor3LQ9kd","market":"us","size":50912},{"description":"EX-5.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000067/alt-20251106xex5d1.htm","primary":false,"translateUrl":"","linkName":"alt-20251106xex5d1.htm","type":"EX-5.1","id":"NTFILE5B2zU64xFs7y5p6E","market":"us","size":15806},{"description":"GRAPHIC","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000067/alt-20251106xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"alt-20251106xex5d1001.jpg","type":"GRAPHIC","id":"NTFILE5xCxipdCoCZgA564","market":"us","size":5832}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-11-06 13:00","pubTimestamp":1762405200,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 1.02: Termination of a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第1.01项：签订重大最终协议；第1.02项：重大最终协议的终止；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20379094","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000064-ALT","pdf_url":"","pub_time":1762405200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ALT","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"季度报告","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/0001326190-25-000064-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930x10q.htm","primary":true,"translateUrl":"","linkName":"alt-20250930x10q.htm","type":"10-Q","id":"NTFILEdRxxUhfHsM9ChTiT","market":"us","size":1389449},{"description":"EX-10.2","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930xex10d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250930xex10d2.htm","type":"EX-10.2","id":"NTFILEC1ZbTxkMKVWeiQ48","market":"us","size":41688},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20250930xex31d1.htm","type":"EX-31.1","id":"NTFILE5oAmkuSqj7k1PMH6","market":"us","size":11836},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250930xex31d2.htm","type":"EX-31.2","id":"NTFILE2g2Mq4UVZpUzwtU2","market":"us","size":11658},{"description":"EX-32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20250930xex32d1.htm","type":"EX-32.1","id":"NTFILE3kfyKhDiQTaVzcck","market":"us","size":6656},{"description":"EX-32.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250930xex32d2.htm","type":"EX-32.2","id":"NTFILE8SMYqQYwvDTr7482","market":"us","size":6771},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000064/alt-20250930x10q002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250930x10q002.jpg","type":"GRAPHIC","id":"NTFILEFfUeqE2nrTT3sqJv","market":"us","size":16725}],"type_name":"财务报告","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"usFinancials","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"季度报告","pubTime":"2025-11-06 13:00","pubTimestamp":1762405200,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20377139","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000055-ALT","pdf_url":"","pub_time":1762405200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000055/0001326190-25-000055-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.02: Results of Operations and Financial Condition;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000055/alt-20251106xex10d1.htm","primary":true,"translateUrl":"","linkName":"alt-20251106xex10d1.htm","type":"EX-10.1","id":"NTFILE6a4MCyRtbFsra763","market":"us","size":1055119},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000055/alt-20251106x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20251106x8k.htm","type":"8-K","id":"NTFILE3hEnLsh4SPth7Qfc","market":"us","size":47989},{"description":"EX-99.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000055/alt-20251106xex99d1.htm","primary":false,"translateUrl":"","linkName":"alt-20251106xex99d1.htm","type":"EX-99.1","id":"NTFILEGzmMErTgUwwgNQnz","market":"us","size":176620},{"description":"GRAPHIC","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000055/alt-20251106xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20251106xex99d1002.jpg","type":"GRAPHIC","id":"NTFILEdpXdF4Md2bvZCCWt","market":"us","size":7092}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-11-06 13:00","pubTimestamp":1762405200,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.02: Results of Operations and Financial Condition;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第1.01项：签订重大最终协议；项目2.02：经营业绩和财务状况；第2.03项：设立直接财务义务或注册人资产负债表外安排下的义务；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20238781","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000053-ALT","pdf_url":"","pub_time":1759464000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000053/0001326190-25-000053-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000053/alt-20251001x8k.htm","primary":true,"translateUrl":"","linkName":"alt-20251001x8k.htm","type":"8-K","id":"NTFILE9NuumFUkrayJHYLF","market":"us","size":40644}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-10-03 12:00","pubTimestamp":1759464000,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"第5.02项：董事或某些高级职员的离职；选举董事；若干人员的委任：若干人员的补偿安排","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20207088","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000050-ALT","pdf_url":"","pub_time":1758772800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000050/0001326190-25-000050-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000050/alt-20250925x8k.htm","primary":true,"translateUrl":"","linkName":"alt-20250925x8k.htm","type":"8-K","id":"NTFILED4G2gkBGz8UfaQgj","market":"us","size":81276}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-09-25 12:00","pubTimestamp":1758772800,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"项目5.07：将事项提交证券持有人表决","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20179899","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000042-ALT","pdf_url":"","pub_time":1754971200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form CORRESP - Correspondence","symbol":"ALT","title":"Form CORRESP - Correspondence","titleType":"SEC问询函","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000042/0001326190-25-000042-index.htm","us_notice_code":"Form CORRESP","us_title_en":"Form CORRESP - Correspondence","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000042/filename1.htm","primary":true,"translateUrl":"","linkName":"filename1.htm","type":"CORRESP","id":"NTFILEDXPpSh8iSuipf36w","market":"us","size":52374}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Correspondence","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"SEC问询函","pubTime":"2025-08-12 12:00","pubTimestamp":1754971200,"title_zh":"Form CORRESP - Correspondence","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19976557","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000040-ALT","pdf_url":"","pub_time":1754971200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ALT","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"季度报告","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/0001326190-25-000040-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/alt-20250630x10q.htm","primary":true,"translateUrl":"","linkName":"alt-20250630x10q.htm","type":"10-Q","id":"NTFILEG6GJRNkExMK5VsSt","market":"us","size":1208966},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/alt-20250630xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20250630xex31d1.htm","type":"EX-31.1","id":"NTFILE481vTEK4ScXKU4AJ","market":"us","size":11831},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/alt-20250630xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250630xex31d2.htm","type":"EX-31.2","id":"NTFILEDy4JaxqeyjJVVmit","market":"us","size":11653},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/alt-20250630xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20250630xex32d1.htm","type":"EX-32.1","id":"NTFILEEqyAgGCMNrZN7twk","market":"us","size":6651},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/alt-20250630xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250630xex32d2.htm","type":"EX-32.2","id":"NTFILEJA4m4smiJept6PEP","market":"us","size":6766},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000040/alt-20250630x10q002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250630x10q002.jpg","type":"GRAPHIC","id":"NTFILE6DEMFFFErivmhLLF","market":"us","size":16725}],"type_name":"财务报告","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"usFinancials","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"季度报告","pubTime":"2025-08-12 12:00","pubTimestamp":1754971200,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19975690","market":"us","labels":[],"media":"sec.gov","original_id":"AN155837025011145-ALT","pdf_url":"","pub_time":1754971200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000155837025011145/0001558370-25-011145-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000155837025011145/alt-20250812xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20250812xex99d1.htm","type":"EX-99.1","id":"NTFILECwGXMS5U9QtSK4mn","market":"us","size":181961},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000155837025011145/alt-20250812x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20250812x8k.htm","type":"8-K","id":"NTFILEGAk65uiZJ6QVChZp","market":"us","size":43509},{"description":"GRAPHIC","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000155837025011145/alt-20250812xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250812xex99d1002.jpg","type":"GRAPHIC","id":"NTFILEGa7d54NuDaumaD5P","market":"us","size":7092}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-08-12 12:00","pubTimestamp":1754971200,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第2.02项：经营业绩和财务状况；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19811717","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000037-ALT","pdf_url":"","pub_time":1750910400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/0001326190-25-000037-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20250626xex99d1.htm","type":"EX-99.1","id":"NTFILEFaqaGtiJW5kzYkhk","market":"us","size":92368},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20250626x8k.htm","type":"8-K","id":"NTFILEDFEdLmwBqowoRtvW","market":"us","size":110874},{"description":"EX-99.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2.htm","type":"EX-99.2","id":"NTFILE7YGaAn1c7kkEzSgP","market":"us","size":32464},{"description":"GRAPHIC","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d1002.jpg","type":"GRAPHIC","id":"NTFILE7SBh6fYpCia2n6wH","market":"us","size":7002},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g001.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g001.jpg","type":"GRAPHIC","id":"NTFILE4XC8oQUm2Bqanmt3","market":"us","size":116434},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g002.jpg","type":"GRAPHIC","id":"NTFILE94TsQUppHvhdeMhm","market":"us","size":303148},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g003.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g003.jpg","type":"GRAPHIC","id":"NTFILE5kCRnMLJwvM7UnoZ","market":"us","size":106748},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g004.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g004.jpg","type":"GRAPHIC","id":"NTFILE5spHFJveTV6pjssC","market":"us","size":129622},{"description":"GRAPHIC","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g005.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g005.jpg","type":"GRAPHIC","id":"NTFILE8J9BNnuabXzrrDVn","market":"us","size":141108},{"description":"GRAPHIC","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g006.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g006.jpg","type":"GRAPHIC","id":"NTFILE4aTUK2ZwvV2MJ5yR","market":"us","size":116650},{"description":"GRAPHIC","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g007.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g007.jpg","type":"GRAPHIC","id":"NTFILEA4r2Fexz9hF5yvwD","market":"us","size":133808},{"description":"GRAPHIC","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g008.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g008.jpg","type":"GRAPHIC","id":"NTFILE2kQANe4XJSKWSach","market":"us","size":195519},{"description":"GRAPHIC","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g009.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g009.jpg","type":"GRAPHIC","id":"NTFILEvvmAB2F8MUXkH2Ts","market":"us","size":109423},{"description":"GRAPHIC","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g010.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g010.jpg","type":"GRAPHIC","id":"NTFILEHRuEoR18969qxhtN","market":"us","size":174793},{"description":"GRAPHIC","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g011.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g011.jpg","type":"GRAPHIC","id":"NTFILE8uYKYPxwSD9btXmU","market":"us","size":123308},{"description":"GRAPHIC","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g012.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g012.jpg","type":"GRAPHIC","id":"NTFILEDgLDrBhHde95XaKE","market":"us","size":137469},{"description":"GRAPHIC","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g013.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g013.jpg","type":"GRAPHIC","id":"NTFILEFZuhSkt1PdhFP9yQ","market":"us","size":96346},{"description":"GRAPHIC","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g014.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g014.jpg","type":"GRAPHIC","id":"NTFILEBYbV4ZcSTqhkVBUr","market":"us","size":123772},{"description":"GRAPHIC","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g015.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g015.jpg","type":"GRAPHIC","id":"NTFILECUcZ2GYXNquB6Hnm","market":"us","size":139201},{"description":"GRAPHIC","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g016.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g016.jpg","type":"GRAPHIC","id":"NTFILEXfha7cfHmh8rmqze","market":"us","size":140601},{"description":"GRAPHIC","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g017.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g017.jpg","type":"GRAPHIC","id":"NTFILE7BhuTkbrhaM8tPsz","market":"us","size":128038},{"description":"GRAPHIC","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g018.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g018.jpg","type":"GRAPHIC","id":"NTFILEHVtJL4dY9MRboDW7","market":"us","size":82271},{"description":"GRAPHIC","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g019.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g019.jpg","type":"GRAPHIC","id":"NTFILECxJsqKwFtqXwRTxL","market":"us","size":94286},{"description":"GRAPHIC","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g020.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g020.jpg","type":"GRAPHIC","id":"NTFILEHyk551ekrVat7epg","market":"us","size":102762},{"description":"GRAPHIC","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g021.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g021.jpg","type":"GRAPHIC","id":"NTFILEAv3NENf2e79y6QB7","market":"us","size":188467},{"description":"GRAPHIC","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g022.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g022.jpg","type":"GRAPHIC","id":"NTFILEAEzWt4yPrE1bWNHu","market":"us","size":104952},{"description":"GRAPHIC","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000037/alt-20250626xex99d2g023.jpg","primary":false,"translateUrl":"","linkName":"alt-20250626xex99d2g023.jpg","type":"GRAPHIC","id":"NTFILE3TUP6tarsqzWvZtY","market":"us","size":137514}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-06-26 12:00","pubTimestamp":1750910400,"title_zh":"Form 8-K - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第7.01项：法规FD披露；项目8.01：其他事件；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19637960","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000034-ALT","pdf_url":"","pub_time":1747108800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ALT","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"季度报告","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/0001326190-25-000034-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331x10q.htm","primary":true,"translateUrl":"","linkName":"alt-20250331x10q.htm","type":"10-Q","id":"NTFILEH2tpwppEAN4EyJPn","market":"us","size":942662},{"description":"EX-10.3","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331xex10d3.htm","primary":false,"translateUrl":"","linkName":"alt-20250331xex10d3.htm","type":"EX-10.3","id":"NTFILE4Lu7idgFVayGfjLB","market":"us","size":752968},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20250331xex31d1.htm","type":"EX-31.1","id":"NTFILEJBZBPSh41bLRHouf","market":"us","size":11835},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250331xex31d2.htm","type":"EX-31.2","id":"NTFILEEvPTZN4CS9yV7PcZ","market":"us","size":11666},{"description":"EX-32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20250331xex32d1.htm","type":"EX-32.1","id":"NTFILEEgoVBhYoXFFAUWqt","market":"us","size":6655},{"description":"EX-32.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250331xex32d2.htm","type":"EX-32.2","id":"NTFILE5YJc6Y3EpHLMPb4V","market":"us","size":6773},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000034/alt-20250331x10q002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250331x10q002.jpg","type":"GRAPHIC","id":"NTFILECaXKtxNb5azrj5TA","market":"us","size":16725}],"type_name":"财务报告","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"usFinancials","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"季度报告","pubTime":"2025-05-13 12:00","pubTimestamp":1747108800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19635056","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000031-ALT","pdf_url":"","pub_time":1747108800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000031/0001326190-25-000031-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.02: Results of Operations and Financial Condition;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000031/alt-20250513xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20250513xex99d1.htm","type":"EX-99.1","id":"NTFILE5ozMdk1JQEXFRCDU","market":"us","size":139326},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000031/alt-20250513x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20250513x8k.htm","type":"8-K","id":"NTFILEBVPQxxRdm5xthM54","market":"us","size":53758},{"description":"EX-99.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000031/alt-20250513xex99d2.htm","primary":false,"translateUrl":"","linkName":"alt-20250513xex99d2.htm","type":"EX-99.2","id":"NTFILEGr6ByYpAJM2AFHaN","market":"us","size":16680},{"description":"GRAPHIC","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000031/alt-20250513xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250513xex99d1002.jpg","type":"GRAPHIC","id":"NTFILE89HYtN34R8n8mhaC","market":"us","size":7092},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000031/alt-20250513xex99d2002.jpg","primary":false,"translateUrl":"","linkName":"alt-20250513xex99d2002.jpg","type":"GRAPHIC","id":"NTFILEGuLeuz2Jx64YD5rz","market":"us","size":7092}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-05-13 12:00","pubTimestamp":1747108800,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.02: Results of Operations and Financial Condition;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"第1.01项：签订重大最终协议；第2.02项：经营业绩和财务状况；第2.03项：直接财务义务或注册人资产负债表外安排下的义务的产生；第7.01项：法规FD披露；项目9.01：财务报表和附件","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19236569","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000024-ALT","pdf_url":"","pub_time":1741838400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"重要事件披露","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000024/0001326190-25-000024-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000024/alt-20250313x8k.htm","primary":true,"translateUrl":"","linkName":"alt-20250313x8k.htm","type":"8-K","id":"NTFILEFvhUdyNCvyEzmNp8","market":"us","size":39115}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"重要事件披露","pubTime":"2025-03-13 12:00","pubTimestamp":1741838400,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"项目8.01：其他事项","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19376461","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000022-ALT","pdf_url":"","pub_time":1741723326000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form CORRESP - Correspondence","symbol":"ALT","title":"Form CORRESP - Correspondence","titleType":"SEC问询函","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/0001326190-25-000022-index.html","us_notice_code":"Form CORRESP","us_title_en":"Form CORRESP - Correspondence","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000022/filename1.htm","primary":true,"translateUrl":"","linkName":"filename1.htm","type":"CORRESP","id":"NTFILEDmbwKGUpo2e6C4xu","market":"us","size":9271}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Correspondence","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"SEC问询函","pubTime":"2025-03-12 04:02","pubTimestamp":1741723326,"title_zh":"Form CORRESP - Correspondence","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19177615","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000015-ALT","pdf_url":"","pub_time":1740632400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"ALT","title":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"年度报告","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/0001326190-25-000015-index.htm","us_notice_code":"Form 10-K","us_title_en":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k.htm","primary":true,"translateUrl":"","linkName":"alt-20241231x10k.htm","type":"10-K","id":"NTFILE5dEErAtsESEfGgU8","market":"us","size":2546663},{"description":"EX-4.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex4d1.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex4d1.htm","type":"EX-4.1","id":"NTFILEFnTvSsdVjXFtCCjb","market":"us","size":44015},{"description":"EX-10.7","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex10d7.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex10d7.htm","type":"EX-10.7","id":"NTFILE99nWdxzjsd9fzqgJ","market":"us","size":19796},{"description":"EX-10.15","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex10d15.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex10d15.htm","type":"EX-10.15","id":"NTFILEDLMeh5WeTJb5xDuN","market":"us","size":52086},{"description":"EX-19","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex19.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex19.htm","type":"EX-19","id":"NTFILEA8n7MrgVzLoDzX3G","market":"us","size":147481},{"description":"EX-21","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex21.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex21.htm","type":"EX-21","id":"NTFILE5eb9pnvcPq5XbjKL","market":"us","size":6932},{"description":"EX-23.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex23d1.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex23d1.htm","type":"EX-23.1","id":"NTFILEBUvxM9F1UXPsizby","market":"us","size":9094},{"description":"EX-31.1","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex31d1.htm","type":"EX-31.1","id":"NTFILEHR7HpctweHWC31ZF","market":"us","size":13095},{"description":"EX-31.2","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex31d2.htm","type":"EX-31.2","id":"NTFILECUcpwDeECUEJUst4","market":"us","size":12970},{"description":"EX-32.1","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex32d1.htm","type":"EX-32.1","id":"NTFILEGYAVuQk1bCTatwGf","market":"us","size":7659},{"description":"EX-32.2","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20241231xex32d2.htm","type":"EX-32.2","id":"NTFILEGkAUwZDYheYmrQHd","market":"us","size":7700},{"description":"GRAPHIC","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k002.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k002.jpg","type":"GRAPHIC","id":"NTFILEGvrn52VbKZK3o9Hw","market":"us","size":15826},{"description":"GRAPHIC","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k004.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k004.jpg","type":"GRAPHIC","id":"NTFILEHVpEmej8s1LRB4Ej","market":"us","size":70088},{"description":"GRAPHIC","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k005.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k005.jpg","type":"GRAPHIC","id":"NTFILE9pwrpc1WLVzPWSJj","market":"us","size":134691},{"description":"GRAPHIC","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k006.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k006.jpg","type":"GRAPHIC","id":"NTFILEBBAKwu3V3MZwz8aE","market":"us","size":74525},{"description":"GRAPHIC","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k007.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k007.jpg","type":"GRAPHIC","id":"NTFILEAjRQgLnZ3hzQPVKt","market":"us","size":78078},{"description":"GRAPHIC","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k008.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k008.jpg","type":"GRAPHIC","id":"NTFILECMza7eKZba2W2Umy","market":"us","size":80279},{"description":"GRAPHIC","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k009.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k009.jpg","type":"GRAPHIC","id":"NTFILEF1kZwq9g2kciEucd","market":"us","size":62309},{"description":"GRAPHIC","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k010.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k010.jpg","type":"GRAPHIC","id":"NTFILE7rac4kwDzWinNVXn","market":"us","size":85028},{"description":"GRAPHIC","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231x10k011.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231x10k011.jpg","type":"GRAPHIC","id":"NTFILEC3WfJpgmLEhvpCUx","market":"us","size":66689},{"description":"GRAPHIC","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex10d15002.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231xex10d15002.jpg","type":"GRAPHIC","id":"NTFILEEGNGV5bSLaDxkKk8","market":"us","size":5971},{"description":"GRAPHIC","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex10d15003.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231xex10d15003.jpg","type":"GRAPHIC","id":"NTFILEBaWTsBgCy2NhY9Aa","market":"us","size":5659},{"description":"GRAPHIC","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000015/alt-20241231xex10d15004.jpg","primary":false,"translateUrl":"","linkName":"alt-20241231xex10d15004.jpg","type":"GRAPHIC","id":"NTFILE2s2fzFt2YPHgwkPb","market":"us","size":6019}],"type_name":"财务报告","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"usFinancials","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"年度报告","pubTime":"2025-02-27 13:00","pubTimestamp":1740632400,"title_zh":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19177605","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619025000017-ALT","pdf_url":"","pub_time":1740632400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form S-8 - Securities to be offered to employees in employee benefit plans","symbol":"ALT","title":"Form S-8 - Securities to be offered to employees in employee benefit plans","titleType":"员工持股计划","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000017/0001326190-25-000017-index.htm","us_notice_code":"Form S-8","us_title_en":"Form S-8 - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000017/tmb-20250227xs8.htm","primary":true,"translateUrl":"","linkName":"tmb-20250227xs8.htm","type":"S-8","id":"NTFILEEmSx8hLGsoS32u94","market":"us","size":74875},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000017/tmb-20250227xex5d1.htm","primary":false,"translateUrl":"","linkName":"tmb-20250227xex5d1.htm","type":"EX-5.1","id":"NTFILE93AxnKgijXnBEYQ5","market":"us","size":8570},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000017/tmb-20250227xex23d1.htm","primary":false,"translateUrl":"","linkName":"tmb-20250227xex23d1.htm","type":"EX-23.1","id":"NTFILECGb5ouzHFP1REMCh","market":"us","size":2490},{"description":"EX-FILING FEES","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000017/tmb-20250227xexfees.htm","primary":false,"translateUrl":"","linkName":"tmb-20250227xexfees.htm","type":"EX-FILING FEES","id":"NTFILEFdZVBUAdqthRrzZe","market":"us","size":20247},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619025000017/tmb-20250227xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"tmb-20250227xex5d1001.jpg","type":"GRAPHIC","id":"NTFILE4Kv3QDXBnW64zRRg","market":"us","size":4765}],"type_name":"交易披露","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"usAnnouncement","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"员工持股计划","pubTime":"2025-02-27 13:00","pubTimestamp":1740632400,"title_zh":"Form S-8 - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":13,"pageCount":1,"totalSize":246,"code":"91000000","status":"200"}]}}