Biogen Inc. $(BIIB)$ is currently at $234.98, up $9.27 or 4.11%

--Would be highest close since July 11, 2024, when it closed at $236.80

--On pace for largest percent increase since Aug. 19, 2026, when it rose 4.24%

--Currently up two consecutive days; up 7.58% over this period

--Best two day stretch since the two days ending July 16, 2026, when it rose 8.84%

--Up 4.03% month-to-date

--Up 33.52% year-to-date; on pace for best year since 2013, when it rose 91%

--Down 46.4% from its all-time closing high of $438.43 on March 20, 2015

--Up 62.4% from 52 weeks ago (Oct. 13, 2025), when it closed at $144.69

--Would be a new 52-week closing high

--Up 65.18% from its 52-week closing low of $142.26 on Oct. 16, 2025

--Traded as high as $238.24; highest intraday level since Feb. 12, 2024, when it hit $244.95

--Up 5.55% at today's intraday high; largest intraday percent increase since July 29, 2026, when it rose as much as 6.31%

--Third best performer in the S&P 500 today

All data as of 1:29:16 PM ET

Source: Dow Jones Market Data, FactSet