Marathon Trading Investment Management’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 | – | Sell |
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|
2025
Q4 | $255K | Sell |
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|
2025
Q3 | $245K | Sell |
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|
2025
Q2 | $345K | Hold |
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|
2025
Q1 | $376K | Sell |
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|
2024
Q4 | $2.22M | Buy |
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|
2024
Q2 | – | Sell |
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|
2024
Q1 | $647K | Buy |
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|
2020
Q4 | – | Sell |
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|
2020
Q3 | $211K | Buy |
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|
2019
Q2 | – | Sell |
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|
2019
Q1 | $243K | Buy |
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