Murray Stahl’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $589K | Sell |
2,726
-131
| -5% | -$25.1K | 0.01% | 205 |
|
|
2026
Q1 | $524K | Sell |
2,857
-131
| -4% | -$24.1K | 0.01% | 220 |
|
|
2025
Q4 | $526K | Sell |
2,988
-131
| -4% | -$21.4K | 0.01% | 219 |
|
|
2025
Q3 | $437K | Buy |
3,119
+81
| +3% | +$10.9K | 0.01% | 245 |
|
|
2025
Q2 | $382K | Sell |
3,038
-131
| -4% | -$16.3K | ﹤0.01% | 268 |
|
|
2025
Q1 | $434K | Hold |
3,169
| – | – | ﹤0.01% | 247 |
|
|
2024
Q4 | $485K | Buy |
3,169
+129
| +4% | +$21.8K | 0.01% | 235 |
|
|
2024
Q3 | $589K | Sell |
3,040
-81
| -3% | -$16.9K | 0.01% | 219 |
|
|
2024
Q2 | $724K | Hold |
3,121
| – | – | 0.01% | 191 |
|
|
2024
Q1 | $673K | Buy |
3,121
+2
| +0.1% | +$468 | 0.01% | 195 |
|
|
2023
Q4 | $807K | Sell |
3,119
-131
| -4% | -$32.2K | 0.02% | 173 |
|
|
2023
Q3 | $835K | Hold |
3,250
| – | – | 0.02% | 172 |
|
|
2023
Q2 | $926K | Hold |
3,250
| – | – | 0.02% | 165 |
|
|
2023
Q1 | $904K | Sell |
3,250
-500
| -13% | -$138K | 0.02% | 166 |
|
|
2022
Q4 | $1.04M | Hold |
3,750
| – | – | 0.02% | 150 |
|
|
2022
Q3 | $1M | Hold |
3,750
| – | – | 0.02% | 144 |
|
|
2022
Q2 | $765K | Hold |
3,750
| – | – | 0.02% | 179 |
|
|
2022
Q1 | $790K | Hold |
3,750
| – | – | 0.02% | 196 |
|
|
2021
Q4 | $900K | Sell |
3,750
-125
| -3% | -$32.1K | 0.02% | 190 |
|
|
2021
Q3 | $1.1M | Hold |
3,875
| – | – | 0.03% | 170 |
|
|
2021
Q2 | $1.34M | Sell |
3,875
-50
| -1% | -$15.1K | 0.03% | 156 |
|
|
2021
Q1 | $1.1M | Sell |
3,925
-29
| -0.7% | -$7.82K | 0.02% | 171 |
|
|
2020
Q4 | $968K | Sell |
3,954
-45
| -1% | -$11.6K | 0.03% | 181 |
|
|
2020
Q3 | $1.13M | Hold |
3,999
| – | – | 0.05% | 150 |
|
|
2020
Q2 | $1.07M | Sell |
3,999
-125
| -3% | -$37.6K | 0.04% | 159 |
|
|
2020
Q1 | $1.3M | Sell |
4,124
-130
| -3% | -$39.5K | 0.06% | 114 |
|
|
2019
Q4 | $1.26M | Sell |
4,254
-275
| -6% | -$76.3K | 0.04% | 146 |
|
|
2019
Q3 | $1.05M | Sell |
4,529
-100
| -2% | -$23.3K | 0.03% | 161 |
|
|
2019
Q2 | $1.08M | Buy |
4,629
+125
| +3% | +$28.9K | 0.03% | 160 |
|
|
2019
Q1 | $1.06M | Buy |
+4,504
| New | +$1.42M | 0.03% | 167 |
|
Other funds holding BIIB
Murray Stahl's BIIB Position: Q2 2026 in Review
Murray Stahl reduced its Biogen (BIIB) stake by 4.6% in Q2 2026, selling an estimated $25.1K and leaving 2,726 shares worth $589K. The position accounts for 0.01% of the portfolio, ranked #205.
Murray Stahl first reported a position in BIIB in Q1 2019 and has held it in 30 quarters since. The position peaked at $1.34M in Q2 2021. 1,036 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.
- Murray Stahl held 2,726 shares of Biogen worth $589K as of Q2 2026.
- Murray Stahl sold 131 Biogen shares in Q2 2026, an estimated $25.1K.
- Biogen made up 0.01% of Murray Stahl's portfolio in Q2 2026, its #205 holding.
- Murray Stahl first reported a position in Biogen in Q1 2019 and has held it in 30 quarters since.
- Murray Stahl's Biogen position peaked at $1.34M in Q2 2021.
- 1,036 funds tracked by Wall St. Rank held Biogen as of Q2 2026.
Based on Horizon Kinetics Asset Management's 13F filing for Q2 2026, filed 11 Aug 2026.