BIOGEN INC holding history
As of Nov. 6, 2026 (UTC)
| March 31, 2025 | 15,943,259 | $2,181,675,561 | 1.80% | Withheld — Comparison unavailable: Comparable change withheld pending corporate-action review | May 9, 2025 |
| June 30, 2025 | 15,802,122 | $1,984,588,503 | 1.57% | Withheld — Comparison unavailable: Comparable change withheld pending corporate-action review | Aug. 11, 2025 |
| Sept. 30, 2025 | 14,954,697 | $2,094,853,953 | 1.60% | Withheld — Comparison unavailable: Comparable change withheld pending corporate-action review | Nov. 12, 2025 |
| Dec. 31, 2025 | 14,757,997 | $2,597,259,895 | 1.97% | Withheld — Comparison unavailable: Comparable change withheld pending corporate-action review | Feb. 11, 2026 |
| March 31, 2026 | 14,757,607 | $2,705,512,094 | 2.13% | Withheld — Comparison unavailable: Comparable change withheld pending corporate-action review | May 11, 2026 |
| June 30, 2026 | 15,154,606 | $3,274,304,389 | 1.94% | Withheld — Comparison unavailable: Comparable change withheld pending corporate-action review | Aug. 14, 2026 |
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Schedule 13G disclosures
No verified related disclosures are included in this freeze.
About reported holdings
13F reports quarter-end securities, excluding cash and shorts. Position changes do not establish trades, motives or returns; portfolio weights use disclosed 13F value.