Sector Gamma AS’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 | $16.5M | Buy |
90,096
+4,621
| +5% | +$851K | 3.9% | 7 |
|
|
2025
Q4 | $15M | Buy |
85,475
+10,000
| +13% | +$1.63M | 3.43% | 9 |
|
|
2025
Q3 | $10.6M | Buy |
75,475
+24,836
| +49% | +$3.36M | 2.62% | 12 |
|
|
2025
Q2 | $6.36M | Buy |
50,639
+32,000
| +172% | +$3.99M | 2.08% | 19 |
|
|
2025
Q1 | $2.55M | Sell |
18,639
-10,361
| -36% | -$1.48M | 0.82% | 29 |
|
|
2024
Q4 | $4.43M | Sell |
29,000
-6,166
| -18% | -$1.04M | 1.52% | 22 |
|
|
2024
Q3 | $6.82M | Sell |
35,166
-8,819
| -20% | -$1.85M | 2.07% | 19 |
|
|
2024
Q2 | $10.2M | Sell |
43,985
-15,713
| -26% | -$3.41M | 3.81% | 9 |
|
|
2024
Q1 | $12.9M | Sell |
59,698
-42,536
| -42% | -$9.96M | 3.63% | 11 |
|
|
2023
Q4 | $26.5M | Sell |
102,234
-2,052
| -2% | -$504K | 6.42% | 4 |
|
|
2023
Q3 | $26.8M | Buy |
104,286
+8,529
| +9% | +$2.28M | 6.85% | 3 |
|
|
2023
Q2 | $27.3M | Buy |
95,757
+7,921
| +9% | +$2.36M | 6.1% | 5 |
|
|
2023
Q1 | $24.4M | Buy |
87,836
+17,797
| +25% | +$4.92M | 5.92% | 6 |
|
|
2022
Q4 | $19.4M | Sell |
70,039
-40,191
| -36% | -$11.4M | 4.43% | 9 |
|
|
2022
Q3 | $29.4M | Buy |
110,230
+17,733
| +19% | +$3.77M | 7.58% | 2 |
|
|
2022
Q2 | $18.9M | Buy |
92,497
+10,552
| +13% | +$2.16M | 4.22% | 8 |
|
|
2022
Q1 | $17.3M | Buy |
81,945
+15,346
| +23% | +$3.34M | 3.75% | 9 |
|
|
2021
Q4 | $16M | Sell |
66,599
-16,720
| -20% | -$4.3M | 3.76% | 11 |
|
|
2021
Q3 | $23.6M | Buy |
83,319
+10,276
| +14% | +$3.37M | 4.7% | 7 |
|
|
2021
Q2 | $25.3M | Buy |
73,043
+23,783
| +48% | +$7.2M | 4.48% | 6 |
|
|
2021
Q1 | $13.8M | Sell |
49,260
-16,325
| -25% | -$4.4M | 2.52% | 18 |
|
|
2020
Q4 | $16.1M | Sell |
65,585
-1,758
| -3% | -$454K | 3.06% | 15 |
|
|
2020
Q3 | $19.1M | Buy |
67,343
+3,123
| +5% | +$871K | 4.35% | 9 |
|
|
2020
Q2 | $17.2M | Sell |
64,220
-10,900
| -15% | -$3.28M | 3.55% | 13 |
|
|
2020
Q1 | $23.8M | Sell |
75,120
-27,099
| -27% | -$8.22M | 5.07% | 6 |
|
|
2019
Q4 | $30.3M | Buy |
102,219
+49,793
| +95% | +$13.8M | 4.86% | 5 |
|
|
2019
Q3 | $12.2M | Sell |
52,426
-62,700
| -54% | -$14.6M | 2.06% | 18 |
|
|
2019
Q2 | $26.9M | Sell |
115,126
-35,074
| -23% | -$8.1M | 4.33% | 8 |
|
|
2019
Q1 | $35.5M | Buy |
150,200
+117,100
| +354% | +$36.9M | 5.69% | 6 |
|
|
2018
Q4 | $9.96M | Sell |
33,100
-2,900
| -8% | -$925K | 1.67% | 19 |
|
|
2018
Q3 | $12.7M | Buy |
+36,000
| New | +$12.4M | 1.99% | 17 |
|
|
2018
Q1 | – | Sell |
-65,800
| Closed | -$21M | – | 32 |
|
|
2017
Q4 | $21M | Sell |
65,800
-18,200
| -22% | -$5.84M | 3.52% | 13 |
|
|
2017
Q3 | $26.3M | Buy |
84,000
+26,200
| +45% | +$7.76M | 4.01% | 11 |
|
|
2017
Q2 | $15.7M | Buy |
+57,800
| New | +$15.3M | 2.28% | 17 |
|
|
2016
Q4 | – | Sell |
-71,400
| Closed | -$21.1M | – | 27 |
|
|
2016
Q3 | $21.1M | Sell |
71,400
-25,290
| -26% | -$7.49M | 3.7% | 13 |
|
|
2016
Q2 | $23.4M | Buy |
96,690
+14,780
| +18% | +$3.9M | 4.44% | 8 |
|
|
2016
Q1 | $21.3M | Buy |
81,910
+6,610
| +9% | +$1.75M | 4.39% | 9 |
|
|
2015
Q4 | $23.1M | Buy |
75,300
+46,700
| +163% | +$13.4M | 5.93% | 6 |
|
|
2015
Q3 | $8.35M | Buy |
+28,600
| New | +$9.44M | 2.26% | 18 |
|
|
2014
Q1 | – | Sell |
-20,000
| Closed | -$5.59M | – | 32 |
|
|
2013
Q4 | $5.59M | Buy |
+20,000
| New | +$5.17M | 1.51% | 24 |
|
Other funds holding BIIB
VCM
VPM
Sector Gamma AS's BIIB Position: Q1 2026 in Review
Sector Gamma AS increased its Biogen (BIIB) stake by 5.4% in Q1 2026, buying an estimated $851K and bringing the position to 90,096 shares worth $16.5M. The position accounts for 3.9% of the portfolio, ranked #7.
Sector Gamma AS first reported a position in BIIB in Q4 2013 and has held it in 40 quarters since. The position peaked at $35.5M in Q1 2019. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Sector Gamma AS held 90,096 shares of Biogen worth $16.5M as of Q1 2026.
- Sector Gamma AS bought 4,621 Biogen shares in Q1 2026, an estimated $851K.
- Biogen made up 3.9% of Sector Gamma AS's portfolio in Q1 2026, its #7 holding.
- Sector Gamma AS first reported a position in Biogen in Q4 2013 and has held it in 40 quarters since.
- Sector Gamma AS's Biogen position peaked at $35.5M in Q1 2019.
- 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Sector Gamma AS's 13F filing for Q1 2026, filed 7 May 2026.