US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Atara Biotherapeutics

4.45

0.0000

Post-market: 4.450.00000.00%19:42 EST

Volume:29.89K

Turnover:136.15K

Market Cap:32.09M

PE:2.03

High:4.68

Open:4.45

Low:4.45

Close:4.45

52wk High:19.15

52wk Low:4.20

Shares:7.21M

Float Shares:4.61M

Volume Ratio:0.35

T/O Rate:0.65%

Dividend:- -

Dividend Rate:- -

EPS(TTM):2.19

EPS(LYR):-11.4053

ROE:-2014.86%

ROA:30.86%

PB:-0.88

PE(LYR):-0.39

Loading ...

Overview Company News Filings

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/ATRA/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"ATRA","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ATRA\",,,,,undefined,":{"symbol":"ATRA","market":"US","secType":"STK","nameCN":"Atara Biotherapeutics","latestPrice":4.45,"timestamp":1771016400000,"preClose":4.45,"halted":0,"volume":29890,"hourTrading":{"tag":"盘后","latestPrice":4.45,"preClose":4.45,"latestTime":"19:42 EST","volume":72,"amount":324.7169,"timestamp":1771029762073,"change":0,"changeRate":0,"amplitude":0},"delay":0,"changeRate":0,"floatShares":4609000,"shares":7210235,"eps":2.194,"marketStatus":"Market Closed","change":0,"latestTime":"02-13 16:00:00 EST","open":4.45,"high":4.6799,"low":4.45,"amount":136146.45119599998,"amplitude":0.051663,"askPrice":0,"askSize":0,"bidPrice":0,"bidSize":0,"shortable":3,"etf":0,"ttmEps":2.194,"tradingStatus":0,"nextMarketStatus":{"tag":"Pre-Mkt","tradingStatus":1,"beginTime":1771318800000},"marketStatusCode":7,"adr":0,"adrRate":0,"listingDate":1413432000000,"exchange":"NASDAQ","adjPreClose":4.45,"preHourTrading":{"tag":"盘前","latestPrice":4.3172,"preClose":4.45,"latestTime":"08:00 EST","volume":1,"amount":4.3172,"timestamp":1770987604945,"change":-0.1328,"changeRate":-0.029843,"amplitude":0},"postHourTrading":{"tag":"盘后","latestPrice":4.45,"preClose":4.45,"latestTime":"19:42 EST","volume":72,"amount":324.7169,"timestamp":1771029762073,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":0.34749833785900625,"impliedVol":0.0156,"impliedVolPercentile":0},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ATRA\",,,,,undefined,":{"symbol":"ATRA","floatShares":4609000,"roa":"30.86%","roe":"-2014.86%","lyrEps":-11.405315,"volumeRatio":0.34749833785900625,"shares":7210235,"dividePrice":0,"high":4.6799,"amplitude":0.051663,"preClose":4.45,"low":4.45,"week52Low":4.2,"pbRate":"-0.88","psRate":"0.21","week52High":19.145,"institutionHeld":0,"latestPrice":4.45,"eps":2.194,"divideRate":0,"volume":29890,"delay":0,"ttmEps":2.194,"open":4.45,"prevYearClose":18.09,"prevWeekClose":4.88,"prevMonthClose":5.2,"prevQuarterClose":18.09,"fiveDayClose":4.88,"twentyDayClose":4.62,"sixtyDayClose":13.1},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/ATRA\",params:#limit:5,,,undefined,":[{"market":"US","date":"2025-11-12","symbol":"ATRA","fiscalQuarterEnding":"2025/09","expectedEps":-0.83,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1762923600000,"reportTimeType":"pre","actualEps":-0.32},{"market":"US","date":"2025-08-11","symbol":"ATRA","fiscalQuarterEnding":"2025/06","expectedEps":null,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1754884800000,"reportTimeType":"post","actualEps":0.19},{"market":"US","date":"2025-05-15","symbol":"ATRA","fiscalQuarterEnding":"2025/03","expectedEps":-3.07,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1747281600000,"reportTimeType":"pre","actualEps":3.5},{"market":"US","date":"2025-03-07","symbol":"ATRA","fiscalQuarterEnding":"2024/12","expectedEps":-3.82,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1741323600000,"reportTimeType":"post","actualEps":-1.19},{"market":"US","date":"2024-11-12","symbol":"ATRA","fiscalQuarterEnding":"2024/09","expectedEps":-3.77,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1731387600000,"reportTimeType":"post","actualEps":-2.93}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"ATRA\",market:\"US\",,,undefined,":[],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"ATRA\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0,"buy":0.25,"hold":0.5,"sell":0.25,"strongSell":0,"meanLabel":"HOLD","meanPercent":0.5,"analysts":4,"updateTime":1769058000000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/ATRA\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"ATRA","date":"2026-02-13","current":2.028259,"percent":0.897876,"low":-5.656868,"twenty":-3.617614,"median":-1.002656,"eighty":-0.245698,"high":28.522215,"avg":-0.532371,"sd":4.617075,"marketCap":32085545},"quantilePoints":[{"date":"2021-02-19","current":-4.873971,"twenty":-13.392279,"median":-7.191804,"eighty":-3.157132,"marketCap":1480756212},{"date":"2021-02-26","current":-4.574118,"twenty":-13.199069,"median":-7.149529,"eighty":-3.157132,"marketCap":1389658235},{"date":"2021-03-05","current":-4.382267,"twenty":-13.139307,"median":-7.094622,"eighty":-3.1569,"marketCap":1343690687},{"date":"2021-03-12","current":-4.608607,"twenty":-13.056844,"median":-6.97602,"eighty":-3.1569,"marketCap":1413091015},{"date":"2021-03-19","current":-4.101387,"twenty":-12.95938,"median":-6.943288,"eighty":-3.1569,"marketCap":1257567389},{"date":"2021-03-26","current":-4.03594,"twenty":-12.882467,"median":-6.914441,"eighty":-3.157132,"marketCap":1237499824},{"date":"2021-04-01","current":-4.065937,"twenty":-12.85666,"median":-6.88488,"eighty":-3.157132,"marketCap":1246697458},{"date":"2021-04-09","current":-3.75506,"twenty":-12.742945,"median":-6.869396,"eighty":-3.1569,"marketCap":1151376525},{"date":"2021-04-16","current":-3.621438,"twenty":-12.643743,"median":-6.824351,"eighty":-3.1569,"marketCap":1110405247},{"date":"2021-04-23","current":-3.877259,"twenty":-12.554952,"median":-6.784507,"eighty":-3.1569,"marketCap":1188845061},{"date":"2021-04-30","current":-3.855322,"twenty":-12.506885,"median":-6.753144,"eighty":-3.1569,"marketCap":1182118922},{"date":"2021-05-07","current":-3.668703,"twenty":-12.332491,"median":-6.734261,"eighty":-3.1569,"marketCap":1142602855},{"date":"2021-05-14","current":-4.046641,"twenty":-12.201936,"median":-6.711738,"eighty":-3.1569,"marketCap":1260310287},{"date":"2021-05-21","current":-3.717295,"twenty":-12.04167,"median":-6.701173,"eighty":-3.1569,"marketCap":1157736668},{"date":"2021-05-28","current":-3.660604,"twenty":-11.945762,"median":-6.663994,"eighty":-3.1569,"marketCap":1140080553},{"date":"2021-06-04","current":-3.558021,"twenty":-11.860844,"median":-6.64417,"eighty":-3.1569,"marketCap":1108131393},{"date":"2021-06-11","current":-3.887367,"twenty":-11.734357,"median":-6.597131,"eighty":-3.1569,"marketCap":1210705012},{"date":"2021-06-18","current":-4.052041,"twenty":-11.65961,"median":-6.574843,"eighty":-3.1569,"marketCap":1261991822},{"date":"2021-06-25","current":-4.413782,"twenty":-11.620814,"median":-6.547695,"eighty":-3.1569,"marketCap":1374654649},{"date":"2021-07-02","current":-4.297701,"twenty":-11.573858,"median":-6.50798,"eighty":-3.1569,"marketCap":1338501653},{"date":"2021-07-09","current":-3.819878,"twenty":-11.523867,"median":-6.486512,"eighty":-3.1569,"marketCap":1189685828},{"date":"2021-07-16","current":-3.579617,"twenty":-11.435141,"median":-6.463405,"eighty":-3.1569,"marketCap":1114857532},{"date":"2021-07-23","current":-3.447339,"twenty":-11.392427,"median":-6.418944,"eighty":-3.1569,"marketCap":1073659931},{"date":"2021-07-30","current":-3.44194,"twenty":-11.358954,"median":-6.396421,"eighty":-3.1569,"marketCap":1071978396},{"date":"2021-08-06","current":-3.412245,"twenty":-11.202892,"median":-6.351967,"eighty":-3.1569,"marketCap":1062729955},{"date":"2021-08-13","current":-3.320604,"twenty":-11.111326,"median":-6.306331,"eighty":-3.1569,"marketCap":1055231509},{"date":"2021-08-20","current":-3.368613,"twenty":-10.950561,"median":-6.285104,"eighty":-3.1569,"marketCap":1070487869},{"date":"2021-08-27","current":-3.920713,"twenty":-10.869994,"median":-6.133353,"eighty":-3.1569,"marketCap":1245935999},{"date":"2021-09-03","current":-4.150088,"twenty":-10.808757,"median":-6.084516,"eighty":-3.1569,"marketCap":1318827493},{"date":"2021-09-10","current":-4.182094,"twenty":-10.771656,"median":-6.058582,"eighty":-3.1569,"marketCap":1328998399},{"date":"2021-09-17","current":-4.28878,"twenty":-10.72894,"median":-6.026645,"eighty":-3.1569,"marketCap":1362901420},{"date":"2021-09-24","current":-4.534158,"twenty":-10.669988,"median":-5.968492,"eighty":-3.1569,"marketCap":1440878367},{"date":"2021-10-01","current":-4.667516,"twenty":-10.577989,"median":-5.929441,"eighty":-3.1569,"marketCap":1483257142},{"date":"2021-10-08","current":-4.547494,"twenty":-10.545918,"median":-5.900924,"eighty":-3.1569,"marketCap":1445116244},{"date":"2021-10-15","current":-4.032734,"twenty":-10.489134,"median":-5.768077,"eighty":-3.1569,"marketCap":1281534171},{"date":"2021-10-22","current":-4.275444,"twenty":-10.423167,"median":-5.72307,"eighty":-3.1569,"marketCap":1358663542},{"date":"2021-10-29","current":-4.128751,"twenty":-10.423167,"median":-5.648136,"eighty":-3.1569,"marketCap":1312046889},{"date":"2021-11-05","current":-4.896522,"twenty":-10.423167,"median":-5.552729,"eighty":-3.1569,"marketCap":1606543903},{"date":"2021-11-12","current":-4.748306,"twenty":-10.393396,"median":-5.480725,"eighty":-3.1569,"marketCap":1557914341},{"date":"2021-11-19","current":-4.931555,"twenty":-10.312261,"median":-5.443441,"eighty":-3.1569,"marketCap":1618038163},{"date":"2021-11-26","current":-4.734831,"twenty":-10.248252,"median":-5.423247,"eighty":-3.1569,"marketCap":1553493472},{"date":"2021-12-03","current":-4.605479,"twenty":-10.167865,"median":-5.406157,"eighty":-3.1569,"marketCap":1511053126},{"date":"2021-12-10","current":-4.306352,"twenty":-10.114867,"median":-5.351009,"eighty":-3.1569,"marketCap":1412909828},{"date":"2021-12-17","current":-4.082681,"twenty":-10.070909,"median":-5.312947,"eighty":-3.1569,"marketCap":1339523397},{"date":"2021-12-23","current":-4.664766,"twenty":-10.000377,"median":-5.275664,"eighty":-3.1569,"marketCap":1530504951},{"date":"2021-12-31","current":-4.247066,"twenty":-10.000377,"median":-5.219738,"eighty":-3.1569,"marketCap":1393458003},{"date":"2022-01-07","current":-4.233591,"twenty":-9.989866,"median":-5.175187,"eighty":-3.157132,"marketCap":1389037134},{"date":"2022-01-14","current":-4.330606,"twenty":-9.961007,"median":-5.113595,"eighty":-3.157132,"marketCap":1420867393},{"date":"2022-01-21","current":-3.770079,"twenty":-9.961007,"median":-5.071783,"eighty":-3.157132,"marketCap":1236959230},{"date":"2022-01-28","current":-4.00453,"twenty":-9.961007,"median":-5.02065,"eighty":-3.157132,"marketCap":1313882355},{"date":"2022-02-04","current":-3.937159,"twenty":-9.961007,"median":-4.985734,"eighty":-3.157132,"marketCap":1291778009},{"date":"2022-02-11","current":-3.923685,"twenty":-9.933161,"median":-4.899216,"eighty":-3.157132,"marketCap":1287357140},{"date":"2022-02-18","current":-3.535628,"twenty":-9.927271,"median":-4.85142,"eighty":-3.157132,"marketCap":1160036104},{"date":"2022-02-25","current":-3.554492,"twenty":-9.927271,"median":-4.812982,"eighty":-3.157132,"marketCap":1166225321},{"date":"2022-03-04","current":-2.422273,"twenty":-9.860817,"median":-4.763948,"eighty":-3.145245,"marketCap":823914459},{"date":"2022-03-11","current":-2.468803,"twenty":-9.73795,"median":-4.724052,"eighty":-3.133131,"marketCap":839741064},{"date":"2022-03-18","current":-2.679554,"twenty":-9.667125,"median":-4.687497,"eighty":-3.109901,"marketCap":911426277},{"date":"2022-03-25","current":-2.57281,"twenty":-9.496312,"median":-4.664638,"eighty":-3.078143,"marketCap":875118182},{"date":"2022-04-01","current":-2.60018,"twenty":-9.41974,"median":-4.650041,"eighty":-3.058063,"marketCap":884427950},{"date":"2022-04-08","current":-2.39764,"twenty":-9.353968,"median":-4.632345,"eighty":-3.037531,"marketCap":815535668},{"date":"2022-04-14","current":-2.192363,"twenty":-9.235675,"median":-4.615216,"eighty":-3.013211,"marketCap":745712408},{"date":"2022-04-22","current":-1.987085,"twenty":-9.061426,"median":-4.585788,"eighty":-2.977344,"marketCap":675889149},{"date":"2022-04-29","current":-1.746512,"twenty":-8.896503,"median":-4.549538,"eighty":-2.960311,"marketCap":594060417},{"date":"2022-05-06","current":-1.847234,"twenty":-8.821896,"median":-4.512962,"eighty":-2.938752,"marketCap":646367623},{"date":"2022-05-13","current":-1.462839,"twenty":-8.821896,"median":-4.472701,"eighty":-2.903427,"marketCap":511863378},{"date":"2022-05-20","current":-1.377418,"twenty":-8.821896,"median":-4.404765,"eighty":-2.878693,"marketCap":481973546},{"date":"2022-05-27","current":-1.390765,"twenty":-8.821896,"median":-4.383385,"eighty":-2.835056,"marketCap":486643832},{"date":"2022-06-03","current":-1.372079,"twenty":-8.821896,"median":-4.349289,"eighty":-2.792124,"marketCap":480105431},{"date":"2022-06-10","current":-1.393434,"twenty":-8.821896,"median":-4.331031,"eighty":-2.759282,"marketCap":487577889},{"date":"2022-06-17","current":-1.566946,"twenty":-8.821896,"median":-4.3029,"eighty":-2.720678,"marketCap":548291611},{"date":"2022-06-24","current":-1.951342,"twenty":-8.825822,"median":-4.279404,"eighty":-2.710028,"marketCap":682795857},{"date":"2022-07-01","current":-2.215613,"twenty":-8.825822,"median":-4.240771,"eighty":-2.699115,"marketCap":775267525},{"date":"2022-07-08","current":-2.269002,"twenty":-8.825822,"median":-4.23277,"eighty":-2.692806,"marketCap":793948671},{"date":"2022-07-15","current":-1.027724,"twenty":-8.825822,"median":-4.220117,"eighty":-2.681196,"marketCap":359612045},{"date":"2022-07-22","current":-0.859551,"twenty":-8.825822,"median":-4.202286,"eighty":-2.667105,"marketCap":300766437},{"date":"2022-07-29","current":-0.808832,"twenty":-8.825822,"median":-4.195117,"eighty":-2.649754,"marketCap":283019349},{"date":"2022-08-05","current":-0.918278,"twenty":-8.825822,"median":-4.182094,"eighty":-2.635005,"marketCap":321315697},{"date":"2022-08-12","current":-2.225203,"twenty":-8.825822,"median":-4.160831,"eighty":-2.626804,"marketCap":551075948},{"date":"2022-08-19","current":-1.695574,"twenty":-8.825822,"median":-4.129681,"eighty":-2.60747,"marketCap":419912324},{"date":"2022-08-26","current":-1.535542,"twenty":-8.825822,"median":-4.101544,"eighty":-2.597817,"marketCap":380280149},{"date":"2022-09-02","current":-1.63461,"twenty":-8.825822,"median":-4.083409,"eighty":-2.592697,"marketCap":404814352},{"date":"2022-09-09","current":-1.836554,"twenty":-8.825822,"median":-4.054071,"eighty":-2.58627,"marketCap":454826382},{"date":"2022-09-16","current":-1.539353,"twenty":-8.825822,"median":-4.046641,"eighty":-2.572757,"marketCap":381223772},{"date":"2022-09-23","current":-1.261202,"twenty":-8.825822,"median":-4.034173,"eighty":-2.562107,"marketCap":312339279},{"date":"2022-09-30","current":-1.440285,"twenty":-8.825822,"median":-4.02629,"eighty":-2.553014,"marketCap":356689569},{"date":"2022-10-07","current":-1.455527,"twenty":-8.825822,"median":-4.002781,"eighty":-2.545795,"marketCap":360464062},{"date":"2022-10-14","current":-1.421234,"twenty":-8.825822,"median":-3.995393,"eighty":-2.540489,"marketCap":351971453},{"date":"2022-10-21","current":-1.611748,"twenty":-8.825822,"median":-3.974887,"eighty":-2.529966,"marketCap":399152613},{"date":"2022-10-28","current":-1.840365,"twenty":-8.825822,"median":-3.97015,"eighty":-2.523716,"marketCap":455770005},{"date":"2022-11-04","current":-1.809882,"twenty":-8.825822,"median":-3.938659,"eighty":-2.510716,"marketCap":448221020},{"date":"2022-11-11","current":-1.969927,"twenty":-8.825822,"median":-3.923874,"eighty":-2.503848,"marketCap":486727577},{"date":"2022-11-18","current":-1.639686,"twenty":-8.825822,"median":-3.917063,"eighty":-2.481817,"marketCap":405131920},{"date":"2022-11-25","current":-1.605126,"twenty":-8.825822,"median":-3.887367,"eighty":-2.461589,"marketCap":396592840},{"date":"2022-12-02","current":-1.827846,"twenty":-8.825822,"median":-3.877774,"eighty":-2.44425,"marketCap":451622469},{"date":"2022-12-09","current":-1.708806,"twenty":-8.825822,"median":-3.869594,"eighty":-2.434311,"marketCap":422210081},{"date":"2022-12-16","current":-1.351685,"twenty":-8.825822,"median":-3.856314,"eighty":-2.416355,"marketCap":333972918},{"date":"2022-12-23","current":-1.148164,"twenty":-8.825822,"median":-3.841377,"eighty":-2.384785,"marketCap":283687223},{"date":"2022-12-30","current":-1.259524,"twenty":-8.825822,"median":-3.819878,"eighty":-2.361486,"marketCap":311202037},{"date":"2023-01-06","current":-1.344005,"twenty":-8.825822,"median":-3.795582,"eighty":-2.33702,"marketCap":332075345},{"date":"2023-01-13","current":-1.493765,"twenty":-8.806189,"median":-3.776876,"eighty":-2.31985,"marketCap":369078026},{"date":"2023-01-20","current":-1.493765,"twenty":-8.670225,"median":-3.755089,"eighty":-2.306771,"marketCap":369078026},{"date":"2023-01-27","current":-2.023687,"twenty":-8.527881,"median":-3.725394,"eighty":-2.249037,"marketCap":500010590},{"date":"2023-02-03","current":-1.985287,"twenty":-8.456709,"median":-3.706074,"eighty":-2.193457,"marketCap":490522723},{"date":"2023-02-10","current":-1.789944,"twenty":-8.325655,"median":-3.688814,"eighty":-2.164565,"marketCap":408647788},{"date":"2023-02-17","current":-1.899189,"twenty":-8.139454,"median":-3.676802,"eighty":-2.116898,"marketCap":433588733},{"date":"2023-02-24","current":-1.705909,"twenty":-7.980818,"median":-3.660604,"eighty":-2.097825,"marketCap":389462446},{"date":"2023-03-03","current":-1.51683,"twenty":-7.848516,"median":-3.644407,"eighty":-2.064257,"marketCap":346295426},{"date":"2023-03-10","current":-1.189094,"twenty":-7.749269,"median":-3.624165,"eighty":-2.023579,"marketCap":271472592},{"date":"2023-03-17","current":-1.268927,"twenty":-7.584484,"median":-3.613991,"eighty":-2.004345,"marketCap":289698667},{"date":"2023-03-24","current":-1.205901,"twenty":-7.424315,"median":-3.598514,"eighty":-1.981319,"marketCap":275309660},{"date":"2023-03-31","current":-1.218506,"twenty":-7.332537,"median":-3.576981,"eighty":-1.950996,"marketCap":278187461},{"date":"2023-04-06","current":-1.168086,"twenty":-7.250833,"median":-3.565524,"eighty":-1.931366,"marketCap":266676256},{"date":"2023-04-14","current":-1.147007,"twenty":-7.095359,"median":-3.554492,"eighty":-1.895669,"marketCap":261864077},{"date":"2023-04-21","current":-1.20203,"twenty":-6.843537,"median":-3.53085,"eighty":-1.881801,"marketCap":274425823},{"date":"2023-04-28","current":-1.091985,"twenty":-6.706248,"median":-3.504954,"eighty":-1.856762,"marketCap":249302332},{"date":"2023-05-05","current":-1.163937,"twenty":-6.56802,"median":-3.480711,"eighty":-1.840365,"marketCap":265729230},{"date":"2023-05-12","current":-1.033857,"twenty":-6.361412,"median":-3.454026,"eighty":-1.821747,"marketCap":222246265},{"date":"2023-05-19","current":-0.929736,"twenty":-6.139895,"median":-3.442088,"eighty":-1.815179,"marketCap":199863381},{"date":"2023-05-26","current":-0.875045,"twenty":-6.055923,"median":-3.422526,"eighty":-1.807132,"marketCap":188106712},{"date":"2023-06-02","current":-0.683629,"twenty":-5.972415,"median":-3.417493,"eighty":-1.796408,"marketCap":146958369},{"date":"2023-06-09","current":-0.856815,"twenty":-5.879816,"median":-3.396668,"eighty":-1.789676,"marketCap":184187822},{"date":"2023-06-16","current":-0.975311,"twenty":-5.581624,"median":-3.381734,"eighty":-1.783976,"marketCap":209660606},{"date":"2023-06-23","current":-0.79301,"twenty":-5.465771,"median":-3.368613,"eighty":-1.772542,"marketCap":170471708},{"date":"2023-06-30","current":-0.742877,"twenty":-5.351009,"median":-3.348699,"eighty":-1.754886,"marketCap":159694760},{"date":"2023-07-07","current":-0.756549,"twenty":-5.280135,"median":-3.341338,"eighty":-1.745214,"marketCap":162633928},{"date":"2023-07-14","current":-0.906948,"twenty":-5.218317,"median":-3.322513,"eighty":-1.737487,"marketCap":194964769},{"date":"2023-07-21","current":-0.943408,"twenty":-5.142475,"median":-3.317713,"eighty":-1.721059,"marketCap":202802549},{"date":"2023-07-28","current":-0.815797,"twenty":-5.072964,"median":-3.285578,"eighty":-1.708806,"marketCap":175370320},{"date":"2023-08-04","current":-1.052789,"twenty":-4.996638,"median":-3.251137,"eighty":-1.69489,"marketCap":226315888},{"date":"2023-08-11","current":-0.723719,"twenty":-4.931555,"median":-3.200735,"eighty":-1.674761,"marketCap":220402691},{"date":"2023-08-18","current":-0.53117,"twenty":-4.869573,"median":-3.195657,"eighty":-1.654632,"marketCap":161763443},{"date":"2023-08-25","current":-0.497971,"twenty":-4.821066,"median":-3.183328,"eighty":-1.639686,"marketCap":151653228},{"date":"2023-09-01","current":-0.484692,"twenty":-4.774202,"median":-3.151745,"eighty":-1.611748,"marketCap":147609141},{"date":"2023-09-08","current":-0.511251,"twenty":-4.729496,"median":-3.140344,"eighty":-1.607938,"marketCap":155697314},{"date":"2023-09-15","current":-0.507931,"twenty":-4.699522,"median":-3.124149,"eighty":-1.601286,"marketCap":154686292},{"date":"2023-09-22","current":-0.590926,"twenty":-4.67395,"median":-3.108419,"eighty":-1.593316,"marketCap":179961830},{"date":"2023-09-28","current":-0.504611,"twenty":-4.662137,"median":-3.078971,"eighty":-1.580843,"marketCap":153675271},{"date":"2023-10-06","current":-0.464773,"twenty":-4.639244,"median":-3.059334,"eighty":-1.569081,"marketCap":141543012},{"date":"2023-10-13","current":-0.501291,"twenty":-4.617653,"median":-3.042406,"eighty":-1.547838,"marketCap":152664249},{"date":"2023-10-20","current":-0.458134,"twenty":-4.601168,"median":-3.012055,"eighty":-1.527719,"marketCap":139520969},{"date":"2023-10-27","current":-0.444855,"twenty":-4.570108,"median":-2.997338,"eighty":-1.520301,"marketCap":135476883},{"date":"2023-11-03","current":-0.417875,"twenty":-4.529813,"median":-2.962163,"eighty":-1.513558,"marketCap":121287477},{"date":"2023-11-10","current":-0.084277,"twenty":-4.495251,"median":-2.940426,"eighty":-1.493765,"marketCap":24461340},{"date":"2023-11-17","current":-0.16873,"twenty":-4.413478,"median":-2.921482,"eighty":-1.481669,"marketCap":48973641},{"date":"2023-11-24","current":-0.228848,"twenty":-4.393647,"median":-2.888721,"eighty":-1.456989,"marketCap":66422730},{"date":"2023-12-01","current":-0.231763,"twenty":-4.379093,"median":-2.842011,"eighty":-1.44254,"marketCap":67268685},{"date":"2023-12-08","current":-0.244018,"twenty":-4.33972,"median":-2.814054,"eighty":-1.411487,"marketCap":70825771},{"date":"2023-12-15","current":-0.240331,"twenty":-4.325987,"median":-2.769832,"eighty":-1.390757,"marketCap":69755587},{"date":"2023-12-22","current":-0.15658,"twenty":-4.294133,"median":-2.726844,"eighty":-1.383131,"marketCap":45447131},{"date":"2023-12-29","current":-0.192609,"twenty":-4.272034,"median":-2.715933,"eighty":-1.377418,"marketCap":55904354},{"date":"2024-01-05","current":-0.158406,"twenty":-4.240771,"median":-2.709477,"eighty":-1.372079,"marketCap":45977126},{"date":"2024-01-12","current":-0.211642,"twenty":-4.228202,"median":-2.697965,"eighty":-1.353393,"marketCap":61428540},{"date":"2024-01-19","current":-0.256344,"twenty":-4.217437,"median":-2.687765,"eighty":-1.344005,"marketCap":74403242},{"date":"2024-01-26","current":-0.211782,"twenty":-4.202286,"median":-2.67941,"eighty":-1.329368,"marketCap":61469308},{"date":"2024-02-02","current":-0.291459,"twenty":-4.195117,"median":-2.660859,"eighty":-1.300005,"marketCap":84595467},{"date":"2024-02-09","current":-0.29002,"twenty":-4.182094,"median":-2.646508,"eighty":-1.291685,"marketCap":84177586},{"date":"2024-02-16","current":-0.270917,"twenty":-4.160831,"median":-2.632972,"eighty":-1.282447,"marketCap":78633015},{"date":"2024-02-23","current":-0.276395,"twenty":-4.139272,"median":-2.625813,"eighty":-1.268823,"marketCap":80223002},{"date":"2024-03-01","current":-0.273199,"twenty":-4.113941,"median":-2.609292,"eighty":-1.259524,"marketCap":79295510},{"date":"2024-03-08","current":-0.24451,"twenty":-4.096871,"median":-2.599298,"eighty":-1.248726,"marketCap":70968462},{"date":"2024-03-15","current":-0.221228,"twenty":-4.063564,"median":-2.592911,"eighty":-1.231854,"marketCap":64211017},{"date":"2024-03-22","current":-0.234923,"twenty":-4.047811,"median":-2.586167,"eighty":-1.205901,"marketCap":68185985},{"date":"2024-03-28","current":-0.258381,"twenty":-4.035832,"median":-2.57281,"eighty":-1.201699,"marketCap":71345575},{"date":"2024-04-05","current":-0.33669,"twenty":-4.026348,"median":-2.562067,"eighty":-1.172402,"marketCap":92968904},{"date":"2024-04-12","current":-0.308118,"twenty":-4.00453,"median":-2.553014,"eighty":-1.148164,"marketCap":85079259},{"date":"2024-04-19","current":-0.298997,"twenty":-3.995393,"median":-2.545736,"eighty":-1.142775,"marketCap":82560779},{"date":"2024-04-26","current":-0.302498,"twenty":-3.979799,"median":-2.542703,"eighty":-1.092047,"marketCap":83527589},{"date":"2024-05-03","current":-0.28359,"twenty":-3.973022,"median":-2.529966,"eighty":-1.040368,"marketCap":78306614},{"date":"2024-05-10","current":-0.281944,"twenty":-3.954644,"median":-2.525166,"eighty":-1.003567,"marketCap":65723128},{"date":"2024-05-17","current":-0.311802,"twenty":-3.930191,"median":-2.512284,"eighty":-0.982603,"marketCap":72683180},{"date":"2024-05-24","current":-0.335771,"twenty":-3.920713,"median":-2.504396,"eighty":-0.96729,"marketCap":78270489},{"date":"2024-05-31","current":-0.293515,"twenty":-3.909748,"median":-2.495593,"eighty":-0.957081,"marketCap":68420449},{"date":"2024-06-07","current":-0.29398,"twenty":-3.87899,"median":-2.463329,"eighty":-0.947966,"marketCap":68528824},{"date":"2024-06-14","current":-0.272491,"twenty":-3.87387,"median":-2.445213,"eighty":-0.934293,"marketCap":63519512},{"date":"2024-06-21","current":-0.183899,"twenty":-3.859231,"median":-2.440081,"eighty":-0.91424,"marketCap":42868140},{"date":"2024-06-28","current":-0.170675,"twenty":-3.857155,"median":-2.426207,"eighty":-0.902288,"marketCap":39785487},{"date":"2024-07-05","current":-0.15931,"twenty":-3.857155,"median":-2.411385,"eighty":-0.87778,"marketCap":37136332},{"date":"2024-07-12","current":-0.209727,"twenty":-3.857155,"median":-2.378874,"eighty":-0.870488,"marketCap":48888946},{"date":"2024-07-15","current":-0.21634,"twenty":-3.857155,"median":-2.374538,"eighty":-0.866842,"marketCap":50430273},{"date":"2024-08-02","current":-0.214893,"twenty":-3.869127,"median":-2.330398,"eighty":-0.847806,"marketCap":50093108},{"date":"2024-08-09","current":-0.158484,"twenty":-3.869127,"median":-2.311712,"eighty":-0.826735,"marketCap":36943667},{"date":"2024-08-16","current":-0.185419,"twenty":-3.869127,"median":-2.274615,"eighty":-0.792932,"marketCap":33569784},{"date":"2024-08-23","current":-0.193292,"twenty":-3.869127,"median":-2.225203,"eighty":-0.759089,"marketCap":34995148},{"date":"2024-08-30","current":-0.191663,"twenty":-3.869127,"median":-2.188256,"eighty":-0.735098,"marketCap":34700245},{"date":"2024-09-06","current":-0.271478,"twenty":-3.869127,"median":-2.145911,"eighty":-0.718621,"marketCap":49150490},{"date":"2024-09-13","current":-0.219354,"twenty":-3.869127,"median":-2.115116,"eighty":-0.671779,"marketCap":39713595},{"date":"2024-09-20","current":-0.248522,"twenty":-3.869127,"median":-2.079473,"eighty":-0.585614,"marketCap":44994415},{"date":"2024-09-27","current":-0.24006,"twenty":-3.869127,"median":-2.034689,"eighty":-0.537145,"marketCap":43462449},{"date":"2024-10-04","current":-0.225644,"twenty":-3.869127,"median":-2.007391,"eighty":-0.519882,"marketCap":40852432},{"date":"2024-10-11","current":-0.243821,"twenty":-3.869127,"median":-1.989127,"eighty":-0.509923,"marketCap":44143323},{"date":"2024-10-18","current":-0.293964,"twenty":-3.869127,"median":-1.969927,"eighty":-0.501291,"marketCap":53221641},{"date":"2024-10-25","current":-0.265132,"twenty":-3.869127,"median":-1.940468,"eighty":-0.497971,"marketCap":48001608},{"date":"2024-10-31","current":-0.300232,"twenty":-3.869127,"median":-1.903391,"eighty":-0.491332,"marketCap":54356431},{"date":"2024-11-08","current":-0.316529,"twenty":-3.869283,"median":-1.882185,"eighty":-0.469421,"marketCap":57306884},{"date":"2024-11-15","current":-0.54413,"twenty":-3.869283,"median":-1.868211,"eighty":-0.465679,"marketCap":72456328},{"date":"2024-11-22","current":-0.458929,"twenty":-3.869283,"median":-1.842868,"eighty":-0.460768,"marketCap":61110947},{"date":"2024-11-29","current":-0.526622,"twenty":-3.869283,"median":-1.8322,"eighty":-0.460768,"marketCap":70124956},{"date":"2024-12-06","current":-0.541112,"twenty":-3.869283,"median":-1.817505,"eighty":-0.460768,"marketCap":72054472},{"date":"2024-12-13","current":-0.473635,"twenty":-3.869283,"median":-1.809882,"eighty":-0.460768,"marketCap":63069262},{"date":"2024-12-20","current":-0.429516,"twenty":-3.869283,"median":-1.800357,"eighty":-0.453636,"marketCap":57194317},{"date":"2024-12-27","current":-0.561442,"twenty":-3.869283,"median":-1.790831,"eighty":-0.453636,"marketCap":74761555},{"date":"2025-01-03","current":-0.612482,"twenty":-3.869283,"median":-1.788234,"eighty":-0.453636,"marketCap":81558060},{"date":"2025-01-10","current":-0.714994,"twenty":-3.869438,"median":-1.7794,"eighty":-0.453313,"marketCap":95208667},{"date":"2025-01-17","current":-0.338682,"twenty":-3.869438,"median":-1.766681,"eighty":-0.450075,"marketCap":45098842},{"date":"2025-01-24","current":-0.299753,"twenty":-3.869438,"median":-1.748466,"eighty":-0.442936,"marketCap":39915067},{"date":"2025-01-31","current":-0.367229,"twenty":-3.869438,"median":-1.739526,"eighty":-0.42444,"marketCap":48900277},{"date":"2025-02-07","current":-0.454603,"twenty":-3.869438,"median":-1.728187,"eighty":-0.402612,"marketCap":60534972},{"date":"2025-02-14","current":-0.377178,"twenty":-3.869438,"median":-1.713007,"eighty":-0.385236,"marketCap":50225020},{"date":"2025-02-21","current":-0.325273,"twenty":-3.869438,"median":-1.701707,"eighty":-0.369404,"marketCap":43313320},{"date":"2025-02-28","current":-0.298023,"twenty":-3.869438,"median":-1.680233,"eighty":-0.364729,"marketCap":39684677},{"date":"2025-03-07","current":-0.29413,"twenty":-3.869594,"median":-1.658178,"eighty":-0.355551,"marketCap":39166300},{"date":"2025-03-14","current":-0.462652,"twenty":-3.869594,"median":-1.648593,"eighty":-0.355551,"marketCap":39511885},{"date":"2025-03-21","current":-0.462385,"twenty":-3.869594,"median":-1.648593,"eighty":-0.355551,"marketCap":39489046},{"date":"2025-03-28","current":-0.471989,"twenty":-3.869594,"median":-1.635562,"eighty":-0.355551,"marketCap":40309293},{"date":"2025-04-04","current":-0.40613,"twenty":-3.869594,"median":-1.611748,"eighty":-0.355551,"marketCap":34684741},{"date":"2025-04-11","current":-0.363596,"twenty":-3.869438,"median":-1.610347,"eighty":-0.356068,"marketCap":31052217},{"date":"2025-04-17","current":-0.400642,"twenty":-3.869438,"median":-1.6046,"eighty":-0.356068,"marketCap":34216028},{"date":"2025-04-25","current":-0.521383,"twenty":-3.869594,"median":-1.589311,"eighty":-0.355551,"marketCap":44527708},{"date":"2025-05-02","current":-0.518639,"twenty":-3.869594,"median":-1.56828,"eighty":-0.355551,"marketCap":44293352},{"date":"2025-05-09","current":-0.509035,"twenty":-3.869594,"median":-1.535542,"eighty":-0.355551,"marketCap":43473104},{"date":"2025-05-16","current":-2.850604,"twenty":-3.869594,"median":-1.520301,"eighty":-0.355551,"marketCap":44586297},{"date":"2025-05-23","current":-2.663311,"twenty":-3.869594,"median":-1.520301,"eighty":-0.355551,"marketCap":41656842},{"date":"2025-05-30","current":-2.972882,"twenty":-3.869594,"median":-1.520301,"eighty":-0.355551,"marketCap":46498849},{"date":"2025-06-06","current":-3.209188,"twenty":-3.869594,"median":-1.520301,"eighty":-0.355551,"marketCap":50194912},{"date":"2025-06-13","current":-3.319718,"twenty":-3.869594,"median":-1.520301,"eighty":-0.355551,"marketCap":51923715},{"date":"2025-06-20","current":-3.056733,"twenty":-3.870139,"median":-1.520301,"eighty":-0.355331,"marketCap":47810355},{"date":"2025-06-27","current":-3.030053,"twenty":-3.870139,"median":-1.520301,"eighty":-0.355331,"marketCap":47393058},{"date":"2025-07-03","current":-3.226339,"twenty":-3.870139,"median":-1.520301,"eighty":-0.355331,"marketCap":50463174},{"date":"2025-07-11","current":-3.613195,"twenty":-3.870139,"median":-1.520301,"eighty":-0.355331,"marketCap":56513986},{"date":"2025-07-18","current":-4.218755,"twenty":-3.877794,"median":-1.520301,"eighty":-0.355331,"marketCap":65985547},{"date":"2025-07-25","current":-5.313633,"twenty":-3.899391,"median":-1.520301,"eighty":-0.355331,"marketCap":83110530},{"date":"2025-08-01","current":-5.005155,"twenty":-3.921063,"median":-1.520301,"eighty":-0.355331,"marketCap":78285634},{"date":"2025-08-08","current":-4.761849,"twenty":-3.930868,"median":-1.520301,"eighty":-0.355331,"marketCap":74480082},{"date":"2025-08-15","current":13.743703,"twenty":-3.937459,"median":-1.513558,"eighty":-0.349195,"marketCap":79644760},{"date":"2025-08-22","current":13.925963,"twenty":-3.937459,"median":-1.493765,"eighty":-0.33554,"marketCap":80700957},{"date":"2025-08-29","current":14.980409,"twenty":-3.937459,"median":-1.482245,"eighty":-0.323584,"marketCap":86811473},{"date":"2025-09-05","current":15.513693,"twenty":-3.937759,"median":-1.459183,"eighty":-0.318266,"marketCap":89901849},{"date":"2025-09-12","current":14.738008,"twenty":-3.937459,"median":-1.447906,"eighty":-0.314998,"marketCap":85406757},{"date":"2025-09-19","current":14.628927,"twenty":-3.937459,"median":-1.414789,"eighty":-0.31238,"marketCap":84774634},{"date":"2025-09-26","current":16.76206,"twenty":-3.937459,"median":-1.390765,"eighty":-0.309994,"marketCap":97136139},{"date":"2025-10-03","current":17.549865,"twenty":-3.937459,"median":-1.383131,"eighty":-0.307239,"marketCap":101701467},{"date":"2025-10-10","current":19.489076,"twenty":-3.937459,"median":-1.377418,"eighty":-0.301349,"marketCap":112939198},{"date":"2025-10-17","current":18.47705,"twenty":-3.937459,"median":-1.367045,"eighty":-0.299621,"marketCap":107074507},{"date":"2025-10-24","current":17.113542,"twenty":-3.937459,"median":-1.347845,"eighty":-0.298408,"marketCap":99172977},{"date":"2025-10-31","current":17.022642,"twenty":-3.937459,"median":-1.334707,"eighty":-0.294531,"marketCap":98646209},{"date":"2025-11-07","current":14.325926,"twenty":-3.937459,"median":-1.310945,"eighty":-0.293494,"marketCap":83018739},{"date":"2025-11-14","current":16.228777,"twenty":-3.924842,"median":-1.291996,"eighty":-0.290418,"marketCap":94045762},{"date":"2025-11-21","current":4.073301,"twenty":-3.917793,"median":-1.286405,"eighty":-0.287842,"marketCap":95319306},{"date":"2025-11-28","current":4.65256,"twenty":-3.879809,"median":-1.268927,"eighty":-0.283616,"marketCap":108874548},{"date":"2025-12-05","current":4.375255,"twenty":-3.872631,"median":-1.259524,"eighty":-0.279619,"marketCap":102385337},{"date":"2025-12-12","current":5.490637,"twenty":-3.85552,"median":-1.247919,"eighty":-0.274466,"marketCap":128486387},{"date":"2025-12-19","current":5.308848,"twenty":-3.835294,"median":-1.218506,"eighty":-0.271366,"marketCap":124232349},{"date":"2025-12-26","current":5.41977,"twenty":-3.796749,"median":-1.205901,"eighty":-0.270453,"marketCap":126828033},{"date":"2026-01-02","current":5.573828,"twenty":-3.777378,"median":-1.201699,"eighty":-0.267335,"marketCap":130433151},{"date":"2026-01-09","current":5.373552,"twenty":-3.755066,"median":-1.172402,"eighty":-0.263816,"marketCap":125746498},{"date":"2026-01-16","current":1.423498,"twenty":-3.720766,"median":-1.148164,"eighty":-0.258521,"marketCap":33311285},{"date":"2026-01-23","current":1.540583,"twenty":-3.694267,"median":-1.142775,"eighty":-0.255292,"marketCap":36051175},{"date":"2026-01-30","current":1.697722,"twenty":-3.678422,"median":-1.091985,"eighty":-0.252428,"marketCap":39728394},{"date":"2026-02-06","current":1.389606,"twenty":-3.646567,"median":-1.038402,"eighty":-0.248146,"marketCap":32518159},{"date":"2026-02-13","current":1.371119,"twenty":-3.617614,"median":-1.002656,"eighty":-0.245698,"marketCap":32085545}],"updateTime":1771072939995},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"ATRA\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"20625840","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312526010883-ATRA","pdf_url":"","pub_time":1768194000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526010883/0001193125-26-010883-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526010883/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEAwhNywsm2FpMi7Z8","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-01-12 13:00","pubTimestamp":1768194000,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20624900","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312526010342-ATRA","pdf_url":"","pub_time":1768194000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526010342/0001193125-26-010342-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\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/1604464/000119312526010342/d34257dex991.htm","primary":true,"translateUrl":"","linkName":"d34257dex991.htm","type":"EX-99.1","id":"NTFILE3dRZ2Fc2WGKASSnQ","market":"us","size":14434},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526010342/d34257d8k.htm","primary":false,"translateUrl":"","linkName":"d34257d8k.htm","type":"8-K","id":"NTFILEFaEiAeq64g5uWEWN","market":"us","size":24439}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-01-12 13:00","pubTimestamp":1768194000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20594016","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312526000907-ATRA","pdf_url":"","pub_time":1767330000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526000907/0001193125-26-000907-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-10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526000907/d90230dex101.htm","primary":true,"translateUrl":"","linkName":"d90230dex101.htm","type":"EX-10.1","id":"NTFILEFcX4J5aVjX22XrW5","market":"us","size":10645},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312526000907/d90230d8k.htm","primary":false,"translateUrl":"","linkName":"d90230d8k.htm","type":"8-K","id":"NTFILEAkFYPpF8yk7APjFt","market":"us","size":26046}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-01-02 13:00","pubTimestamp":1767330000,"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":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20421342","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514825004101-ATRA","pdf_url":"","pub_time":1763355600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825004101/0000905148-25-004101-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825004101/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE7jJqxc1QZt736NAb","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-11-17 13:00","pubTimestamp":1763355600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20421335","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514825004102-ATRA","pdf_url":"","pub_time":1763355600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825004102/0000905148-25-004102-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825004102/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE9nhzXXuZ8BncM23z","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-11-17 13:00","pubTimestamp":1763355600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20398662","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525276219-ATRA","pdf_url":"","pub_time":1762923600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ATRA","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/0001193125-25-276219-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/1604464/000119312525276219/atra-20250930.htm","primary":true,"translateUrl":"","linkName":"atra-20250930.htm","type":"10-Q","id":"NTFILEB4xeGjRzah6buqtY","market":"us","size":3274225},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/atra-ex10_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex10_1.htm","type":"EX-10.1","id":"NTFILE3BAGZs9KsRHQsuio","market":"us","size":64116},{"description":"EX-10.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/atra-ex10_2.htm","primary":false,"translateUrl":"","linkName":"atra-ex10_2.htm","type":"EX-10.2","id":"NTFILEBMzFPM9qm4cou9Rz","market":"us","size":106980},{"description":"EX-31.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/atra-ex31_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex31_1.htm","type":"EX-31.1","id":"NTFILE8u7uPaLsb41ytm2s","market":"us","size":15470},{"description":"EX-31.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/atra-ex31_2.htm","primary":false,"translateUrl":"","linkName":"atra-ex31_2.htm","type":"EX-31.2","id":"NTFILE4tTL5QdHDhiddURY","market":"us","size":16164},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/atra-ex32_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex32_1.htm","type":"EX-32.1","id":"NTFILE6tRCVCu469BHNfra","market":"us","size":12330},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276219/img79982019_0.jpg","primary":false,"translateUrl":"","linkName":"img79982019_0.jpg","type":"GRAPHIC","id":"NTFILE5485LMcsBYi4cR2o","market":"us","size":228920}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-11-12 13:00","pubTimestamp":1762923600,"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":"20398636","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525276209-ATRA","pdf_url":"","pub_time":1762923600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276209/0001193125-25-276209-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/1604464/000119312525276209/d66575dex991.htm","primary":true,"translateUrl":"","linkName":"d66575dex991.htm","type":"EX-99.1","id":"NTFILE9nSERe6id15FgwXy","market":"us","size":83987},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525276209/d66575d8k.htm","primary":false,"translateUrl":"","linkName":"d66575d8k.htm","type":"8-K","id":"NTFILEBEr77Xce55JB22GX","market":"us","size":24924}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-11-12 13:00","pubTimestamp":1762923600,"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":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20244891","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525232117-ATRA","pdf_url":"","pub_time":1759786337000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/0001193125-25-232117-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 2.05: Cost Associated with Exit or Disposal Activities","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/1604464/000119312525232117/d802811d8k.htm","primary":true,"translateUrl":"","linkName":"d802811d8k.htm","type":"8-K","id":"NTFILE7Vg56nBjrB4GDf8r","market":"us","size":22724}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-10-07 05:32","pubTimestamp":1759786337,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.05: Cost Associated with Exit or Disposal Activities","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20131400","market":"us","labels":[],"media":"sec.gov","original_id":"AN95017025112898-ATRA","pdf_url":"","pub_time":1756937126000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/0000950170-25-112898-index.html","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/1604464/000095017025112898/atra-20250902.htm","primary":true,"translateUrl":"","linkName":"atra-20250902.htm","type":"8-K","id":"NTFILE8Nw7gsFdHrs2HP5n","market":"us","size":41014}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-09-04 06:05","pubTimestamp":1756937126,"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":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20004222","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514825003038-ATRA","pdf_url":"","pub_time":1755489600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825003038/0000905148-25-003038-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825003038/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE3WKxE1yGLQF3HVzj","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-08-18 12:00","pubTimestamp":1755489600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20004186","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514825003037-ATRA","pdf_url":"","pub_time":1755489600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825003037/0000905148-25-003037-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825003037/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE2gLXnkqb2pi4AVm1","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-08-18 12:00","pubTimestamp":1755489600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19972362","market":"us","labels":[],"media":"sec.gov","original_id":"AN95017025106550-ATRA","pdf_url":"","pub_time":1754884800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ATRA","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106550/0000950170-25-106550-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/1604464/000095017025106550/atra-20250630.htm","primary":true,"translateUrl":"","linkName":"atra-20250630.htm","type":"10-Q","id":"NTFILE6Eks8dbBhXvVoyaT","market":"us","size":3116536},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106550/atra-ex10_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex10_1.htm","type":"EX-10.1","id":"NTFILEETtKj1biC6LvNdvp","market":"us","size":59810},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106550/atra-ex31_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex31_1.htm","type":"EX-31.1","id":"NTFILE4rj7oozTiUR9Gm3y","market":"us","size":15304},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106550/atra-ex31_2.htm","primary":false,"translateUrl":"","linkName":"atra-ex31_2.htm","type":"EX-31.2","id":"NTFILE4puHmAk2wEGKuWbb","market":"us","size":15342},{"description":"EX-32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106550/atra-ex32_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex32_1.htm","type":"EX-32.1","id":"NTFILE9B7CeoxrHAayS8Ho","market":"us","size":11254}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-08-11 12:00","pubTimestamp":1754884800,"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":"19972351","market":"us","labels":[],"media":"sec.gov","original_id":"AN95017025106533-ATRA","pdf_url":"","pub_time":1754884800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106533/0000950170-25-106533-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/1604464/000095017025106533/atra-ex99_1.htm","primary":true,"translateUrl":"","linkName":"atra-ex99_1.htm","type":"EX-99.1","id":"NTFILE2TpD9vUWo1FPi1Uc","market":"us","size":282260},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025106533/atra-20250811.htm","primary":false,"translateUrl":"","linkName":"atra-20250811.htm","type":"8-K","id":"NTFILE5FAkR7hLGrSDUtpW","market":"us","size":48048}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-08-11 12:00","pubTimestamp":1754884800,"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":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19877185","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525158719-ATRA","pdf_url":"","pub_time":1752465600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525158719/0001193125-25-158719-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\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/1604464/000119312525158719/d63996dex991.htm","primary":true,"translateUrl":"","linkName":"d63996dex991.htm","type":"EX-99.1","id":"NTFILEEixoCkuAkxi56RQv","market":"us","size":15208},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525158719/d63996d8k.htm","primary":false,"translateUrl":"","linkName":"d63996d8k.htm","type":"8-K","id":"NTFILE6A8ExF51dTAcQv8L","market":"us","size":24892}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-07-14 12:00","pubTimestamp":1752465600,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19761486","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525139150-ATRA","pdf_url":"","pub_time":1749614400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525139150/0001193125-25-139150-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/1604464/000119312525139150/d935254d8k.htm","primary":true,"translateUrl":"","linkName":"d935254d8k.htm","type":"8-K","id":"NTFILE2EV5DLp1bB4DWRep","market":"us","size":35251}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-06-11 12:00","pubTimestamp":1749614400,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19661097","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514825001838-ATRA","pdf_url":"","pub_time":1747368000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825001838/0000905148-25-001838-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825001838/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEEuaJV4kNXjPX7f7A","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-05-16 12:00","pubTimestamp":1747368000,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19661095","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514825001837-ATRA","pdf_url":"","pub_time":1747368000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"ATRA","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825001837/0000905148-25-001837-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000090514825001837/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE23nEQCVFLXcZ4PBD","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-05-16 12:00","pubTimestamp":1747368000,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19660181","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525121824-ATRA","pdf_url":"","pub_time":1747368000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525121824/0001193125-25-121824-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 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-1.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525121824/d45771dex11.htm","primary":true,"translateUrl":"","linkName":"d45771dex11.htm","type":"EX-1.1","id":"NTFILEHQ63hqUwbZTHsMcX","market":"us","size":287129},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525121824/d45771d8k.htm","primary":false,"translateUrl":"","linkName":"d45771d8k.htm","type":"8-K","id":"NTFILE571nBDQz1gRaEjzc","market":"us","size":30447},{"description":"EX-4.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525121824/d45771dex41.htm","primary":false,"translateUrl":"","linkName":"d45771dex41.htm","type":"EX-4.1","id":"NTFILEC6truGjYQHReJsME","market":"us","size":63791},{"description":"EX-5.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525121824/d45771dex51.htm","primary":false,"translateUrl":"","linkName":"d45771dex51.htm","type":"EX-5.1","id":"NTFILEPjxQQmDrh1foj5r5","market":"us","size":15563},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525121824/g45771g0515230020514.jpg","primary":false,"translateUrl":"","linkName":"g45771g0515230020514.jpg","type":"GRAPHIC","id":"NTFILEBzW3u2GH5ctREaHW","market":"us","size":2199}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-05-16 12:00","pubTimestamp":1747368000,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19649036","market":"us","labels":[],"media":"sec.gov","original_id":"AN95017025072040-ATRA","pdf_url":"","pub_time":1747281600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ATRA","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025072040/0000950170-25-072040-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/1604464/000095017025072040/atra-20250331.htm","primary":true,"translateUrl":"","linkName":"atra-20250331.htm","type":"10-Q","id":"NTFILEE8d7KoQRLxJqT4Ta","market":"us","size":2696623},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025072040/atra-ex10_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex10_1.htm","type":"EX-10.1","id":"NTFILE5MnJDa1hM4jjdwaF","market":"us","size":34305},{"description":"EX-10.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025072040/atra-ex10_2.htm","primary":false,"translateUrl":"","linkName":"atra-ex10_2.htm","type":"EX-10.2","id":"NTFILE2PmYN9uJVt3f46eB","market":"us","size":113426},{"description":"EX-31.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025072040/atra-ex31_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex31_1.htm","type":"EX-31.1","id":"NTFILE3v6e8ahAu5MUj9Mw","market":"us","size":15392},{"description":"EX-31.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025072040/atra-ex31_2.htm","primary":false,"translateUrl":"","linkName":"atra-ex31_2.htm","type":"EX-31.2","id":"NTFILE5K7GTP9m77Xwcaci","market":"us","size":15430},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000095017025072040/atra-ex32_1.htm","primary":false,"translateUrl":"","linkName":"atra-ex32_1.htm","type":"EX-32.1","id":"NTFILE7pUKHgBrZU37XzNo","market":"us","size":11239}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-05-15 12:00","pubTimestamp":1747281600,"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":"19649032","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525120345-ATRA","pdf_url":"","pub_time":1747281600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ATRA","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525120345/0001193125-25-120345-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\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/1604464/000119312525120345/d106735dex991.htm","primary":true,"translateUrl":"","linkName":"d106735dex991.htm","type":"EX-99.1","id":"NTFILEGb9436TJ2cKzKeoF","market":"us","size":74433},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1604464/000119312525120345/d106735d8k.htm","primary":false,"translateUrl":"","linkName":"d106735d8k.htm","type":"8-K","id":"NTFILE7JyJtRZXXan3Xs3j","market":"us","size":28926}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-05-15 12:00","pubTimestamp":1747281600,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":12,"pageCount":1,"totalSize":237,"code":"91000000","status":"200"}]}}