Adage Capital Partners’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $61.1M | Buy |
333,457
+39,100
| +13% | +$7.2M | 0.09% | 219 |
|
|
2025
Q4 | $51.8M | Sell |
294,357
-37,775
| -11% | -$6.17M | 0.08% | 247 |
|
|
2025
Q3 | $46.5M | Buy |
332,132
+84,195
| +34% | +$11.4M | 0.07% | 253 |
|
|
2025
Q2 | $31.1M | Buy |
247,937
+177,170
| +250% | +$22.1M | 0.05% | 338 |
|
|
2025
Q1 | $9.68M | Buy |
+70,767
| New | +$10.1M | 0.02% | 590 |
|
|
2024
Q4 | – | Sell |
-45,799
| Closed | -$8.88M | – | 885 |
|
|
2024
Q3 | $8.88M | Sell |
45,799
-91,900
| -67% | -$19.2M | 0.02% | 632 |
|
|
2024
Q2 | $31.9M | Sell |
137,699
-113,883
| -45% | -$24.7M | 0.06% | 318 |
|
|
2024
Q1 | $54.2M | Sell |
251,582
-104,226
| -29% | -$24.4M | 0.1% | 213 |
|
|
2023
Q4 | $92.1M | Buy |
355,808
+294,913
| +484% | +$72.4M | 0.19% | 121 |
|
|
2023
Q3 | $15.7M | Sell |
60,895
-341,161
| -85% | -$91.2M | 0.04% | 461 |
|
|
2023
Q2 | $115M | Buy |
402,056
+70,033
| +21% | +$20.8M | 0.25% | 92 |
|
|
2023
Q1 | $92.3M | Buy |
332,023
+109,424
| +49% | +$30.3M | 0.21% | 117 |
|
|
2022
Q4 | $61.6M | Sell |
222,599
-25,200
| -10% | -$7.12M | 0.15% | 167 |
|
|
2022
Q3 | $66.2M | Buy |
247,799
+95,300
| +62% | +$20.2M | 0.16% | 144 |
|
|
2022
Q2 | $31.1M | Buy |
152,499
+134,100
| +729% | +$27.4M | 0.07% | 292 |
|
|
2022
Q1 | $3.88M | Sell |
18,399
-163,100
| -90% | -$35.5M | 0.01% | 854 |
|
|
2021
Q4 | $43.5M | Buy |
181,499
+68,400
| +60% | +$17.6M | 0.08% | 259 |
|
|
2021
Q3 | $32M | Sell |
113,099
-22,300
| -16% | -$7.31M | 0.06% | 315 |
|
|
2021
Q2 | $46.9M | Sell |
135,399
-36,588
| -21% | -$11.1M | 0.09% | 221 |
|
|
2021
Q1 | $48.1M | Buy |
171,987
+2,300
| +1% | +$620K | 0.1% | 214 |
|
|
2020
Q4 | $41.5M | Sell |
169,687
-7,193
| -4% | -$1.86M | 0.09% | 239 |
|
|
2020
Q3 | $50.2M | Buy |
176,880
+121,290
| +218% | +$33.8M | 0.13% | 177 |
|
|
2020
Q2 | $14.9M | Sell |
55,590
-150,300
| -73% | -$45.2M | 0.04% | 460 |
|
|
2020
Q1 | $65.1M | Sell |
205,890
-2,810
| -1% | -$853K | 0.19% | 130 |
|
|
2019
Q4 | $61.9M | Buy |
+208,700
| New | +$57.9M | 0.15% | 172 |
|
|
2019
Q2 | – | Sell |
-113,976
| Closed | -$26.9M | – | 710 |
|
|
2019
Q1 | $26.9M | Sell |
113,976
-133,326
| -54% | -$42M | 0.07% | 317 |
|
|
2018
Q4 | $74.4M | Sell |
247,302
-11,405
| -4% | -$3.64M | 0.21% | 139 |
|
|
2018
Q3 | $91.4M | Sell |
258,707
-21,490
| -8% | -$7.4M | 0.2% | 125 |
|
|
2018
Q2 | $81.3M | Sell |
280,197
-4,471
| -2% | -$1.26M | 0.19% | 139 |
|
|
2018
Q1 | $77.9M | Sell |
284,668
-14,975
| -5% | -$4.65M | 0.18% | 149 |
|
|
2017
Q4 | $95.5M | Buy |
299,643
+54,274
| +22% | +$17.4M | 0.22% | 122 |
|
|
2017
Q3 | $76.8M | Sell |
245,369
-23,366
| -9% | -$6.92M | 0.19% | 151 |
|
|
2017
Q2 | $72.9M | Sell |
268,735
-9,700
| -3% | -$2.56M | 0.18% | 162 |
|
|
2017
Q1 | $76.1M | Sell |
278,435
-26,500
| -9% | -$7.49M | 0.19% | 152 |
|
|
2016
Q4 | $86.5M | Sell |
304,935
-251
| -0.1% | -$74.4K | 0.24% | 115 |
|
|
2016
Q3 | $95.5M | Sell |
305,186
-12,406
| -4% | -$3.67M | 0.26% | 99 |
|
|
2016
Q2 | $76.8M | Sell |
317,592
-56,732
| -15% | -$15M | 0.21% | 133 |
|
|
2016
Q1 | $97.4M | Buy |
374,324
+149,200
| +66% | +$39.4M | 0.26% | 110 |
|
|
2015
Q4 | $69M | Sell |
225,124
-157,300
| -41% | -$45.2M | 0.18% | 154 |
|
|
2015
Q3 | $112M | Sell |
382,424
-190,700
| -33% | -$63M | 0.31% | 88 |
|
|
2015
Q2 | $232M | Buy |
573,124
+127,000
| +28% | +$51M | 0.58% | 30 |
|
|
2015
Q1 | $188M | Buy |
446,124
+22,000
| +5% | +$8.67M | 0.46% | 48 |
|
|
2014
Q4 | $144M | Sell |
424,124
-125,100
| -23% | -$40.5M | 0.35% | 79 |
|
|
2014
Q3 | $182M | Buy |
549,224
+225,400
| +70% | +$74.3M | 0.45% | 53 |
|
|
2014
Q2 | $102M | Sell |
323,824
-131,700
| -29% | -$39.6M | 0.26% | 108 |
|
|
2014
Q1 | $139M | Sell |
455,524
-234,100
| -34% | -$74.3M | 0.38% | 61 |
|
|
2013
Q4 | $193M | Sell |
689,624
-206,300
| -23% | -$53.4M | 0.51% | 43 |
|
|
2013
Q3 | $216M | Buy |
895,924
+25,000
| +3% | +$5.6M | 0.62% | 33 |
|
|
2013
Q2 | $187M | Buy |
+870,924
| New | +$186M | 0.58% | 35 |
|
Other funds holding BIIB
VCM
VPM
Adage Capital Partners's BIIB Position: Q1 2026 in Review
Adage Capital Partners increased its Biogen (BIIB) stake by 13% in Q1 2026, buying an estimated $7.2M and bringing the position to 333,457 shares worth $61.1M. The position accounts for 0.09% of the portfolio, ranked #219.
Adage Capital Partners first reported a position in BIIB in Q2 2013 and has held it in 49 quarters since. The position peaked at $232M in Q2 2015. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Adage Capital Partners held 333,457 shares of Biogen worth $61.1M as of Q1 2026.
- Adage Capital Partners bought 39,100 Biogen shares in Q1 2026, an estimated $7.2M.
- Biogen made up 0.09% of Adage Capital Partners's portfolio in Q1 2026, its #219 holding.
- Adage Capital Partners first reported a position in Biogen in Q2 2013 and has held it in 49 quarters since.
- Adage Capital Partners's Biogen position peaked at $232M in Q2 2015.
- 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.