Steven Cohen's BIIB Position Overview
Steven Cohen (via Point72 Asset Management, L.P.) currently holds 3.9M shares of Biogen Inc. (BIIB) worth $542.52 M, representing 0.91% of the portfolio. First purchased in 2014-Q2, this long-term strategic position has been held for 46 quarters.
Based on 13F filings since 2013, Steven Cohen has maintained a long-term strategic position in BIIB, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2025, adding 3.4M shares. Largest reduction occurred in Q3 2023, reducing 577.5K shares.
Analysis based on 13F filings available since 2013 Q2
Steven Cohen's Biogen (BIIB) Holding Value Over Time
Track share changes against reported price movement
Quarterly Biogen (BIIB) Trades by Steven Cohen
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2014 | +7,601 | Add 0.00% | 7,600 | $315.26 |
| Q3 2014 | -7,600 | Sold Out | 7,600 | $0.00 |
| Q1 2015 | +8,800 | New Buy | 8,800 | $422.27 |
| Q2 2015 | -8,800 | Sold Out | 8,800 | $0.00 |
| Q3 2015 | +6,800 | New Buy | 6,800 | $291.76 |
| Q4 2015 | +79,900 | Add 1175.00% | 86,700 | $306.36 |
| Q1 2016 | +15,500 | Add 17.88% | 102,200 | $260.32 |
| Q2 2016 | -102,200 | Sold Out | 102,200 | $0.00 |
| Q3 2016 | +117,548 | New Buy | 117,548 | $313.03 |
| Q4 2016 | -64,006 | Reduce 54.45% | 53,542 | $283.57 |
| Q1 2017 | +162,928 | Add 304.30% | 216,470 | $273.42 |
| Q2 2017 | +675,631 | Add 312.11% | 892,101 | $271.36 |
| Q3 2017 | -384,179 | Reduce 43.06% | 507,922 | $313.12 |
| Q4 2017 | -255,603 | Reduce 50.32% | 252,319 | $318.57 |
| Q1 2018 | +192,296 | Add 76.21% | 444,615 | $273.82 |
| Q2 2018 | -298,615 | Reduce 67.16% | 146,000 | $290.24 |
| Q3 2018 | -103,500 | Reduce 70.89% | 42,500 | $353.32 |
| Q4 2018 | -7,500 | Reduce 17.65% | 35,000 | $300.91 |
| Q1 2019 | -35,000 | Sold Out | 35,000 | $0.00 |
| Q4 2019 | +54,081 | New Buy | 54,081 | $296.72 |
| Q1 2020 | -54,081 | Sold Out | 54,081 | $0.00 |
| Q3 2020 | +115,943 | New Buy | 115,943 | $283.68 |
| Q4 2020 | +82,817 | Add 71.43% | 198,760 | $244.86 |
| Q1 2021 | -83,360 | Reduce 41.94% | 115,400 | $279.75 |
| Q2 2021 | +130,106 | Add 112.74% | 245,506 | $346.27 |
| Q3 2021 | -214,654 | Reduce 87.43% | 30,852 | $283.00 |
| Q4 2021 | +580,648 | Add 1882.04% | 611,500 | $239.92 |
| Q1 2022 | -515,700 | Reduce 84.33% | 95,800 | $210.59 |
| Q2 2022 | +360,000 | Add 375.78% | 455,800 | $203.94 |
| Q3 2022 | +1.22 M | Add 268.14% | 1.68 M | $267.00 |
| Q4 2022 | -451,858 | Reduce 26.93% | 1.23 M | $276.92 |
| Q1 2023 | -531,011 | Reduce 43.31% | 695,113 | $278.03 |
| Q2 2023 | -69,472 | Reduce 9.99% | 625,641 | $284.85 |
| Q3 2023 | -577,541 | Reduce 92.31% | 48,100 | $257.01 |
| Q4 2023 | -48,100 | Sold Out | 48,100 | $0.00 |
| Q1 2025 | +407,257 | New Buy | 407,257 | $136.84 |
| Q2 2025 | +3.42 M | Add 840.86% | 3.83 M | $125.59 |
| Q3 2025 | +41,174 | Add 1.07% | 3.87 M | $140.08 |
Steven Cohen's Biogen Investment FAQs
Steven Cohen first purchased Biogen Inc. (BIIB) in Q2 2014, acquiring 7,600 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Steven Cohen has held Biogen Inc. (BIIB) for 46 quarters since Q2 2014. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Steven Cohen's largest addition to Biogen Inc. (BIIB) was in Q2 2025, adding 3,831,727 shares worth $481.23 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Steven Cohen's firm, Point72 Asset Management, L.P., owns 3,872,901 shares of Biogen Inc. (BIIB), valued at approximately $542.52 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Biogen Inc. (BIIB) represents approximately 0.91% of Steven Cohen's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Steven Cohen's peak holding in Biogen Inc. (BIIB) was 3,872,901 shares, as reported at the end of Q3 2025. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.