Reported 2,411,271 shares, up 240,331 (11.1%) from the prior quarter.
Reported value 30.9%; share count 11.1% vs. the prior quarter.
Reported position value by quarter
Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.
| Date | Holding Value |
|---|---|
| 2021-09-30 | 213294000 |
| 2021-12-31 | 187253000 |
| 2022-03-31 | 201297000 |
| 2022-06-30 | 280813000 |
| 2022-09-30 | 331829000 |
| 2022-12-31 | 394006366 |
| 2023-03-31 | 363066271 |
| 2023-06-30 | 407705928 |
| 2023-09-30 | 383745281 |
| 2023-12-31 | 408281862 |
| 2024-03-31 | 366869843 |
| 2024-06-30 | 372421216 |
| 2024-09-30 | 365824336 |
| 2024-12-31 | 272558304 |
| 2025-03-31 | 272403521 |
| 2025-06-30 | 245680815 |
| 2025-09-30 | 315395300 |
| 2025-12-31 | 409179635 |
| 2026-03-31 | 397998875 |
| 2026-06-30 | 520979947 |
Quarterly position history
How this manager's reported quarter-end position changed over time.
| Quarter | Activity | Shares | Change | % of reported 13F | Reported value | Filed | Source filing |
|---|---|---|---|---|---|---|---|
| Q2 2026 | Added | 2,411,271 | +240,331 (11.1%) | 0.03% | $520,979,947 | 2026-08-13 | |
| Q1 2026 | Reduced | 2,170,940 | -154,073 (-6.6%) | 0.02% | $397,998,875 | 2026-05-15 | |
| Q4 2025 | Added | 2,325,013 | +73,478 (3.3%) | 0.02% | $409,179,635 | 2026-02-13 | |
| Q3 2025 | Added | 2,251,535 | +295,325 (15.1%) | 0.02% | $315,395,300 | 2025-11-14 | |
| Q2 2025 | Reduced | 1,956,210 | -34,458 (-1.7%) | 0.02% | $245,680,815 | 2025-08-15 | |
| Q1 2025 | Added | 1,990,668 | +208,312 (11.7%) | 0.02% | $272,403,521 | 2025-05-15 | |
| Q4 2024 | Reduced | 1,782,356 | -104,890 (-5.6%) | 0.02% | $272,558,304 | 2025-02-14 | |
| Q3 2024 | Added | 1,887,246 | +280,738 (17.5%) | 0.03% | $365,824,336 | 2024-11-14 | |
| Q2 2024 | Reduced | 1,606,508 | -94,875 (-5.6%) | 0.03% | $372,421,216 | 2024-08-14 | |
| Q1 2024 | Added | 1,701,383 | +123,606 (7.8%) | 0.03% | $366,869,843 | 2024-05-15 | |
| Q4 2023 | Added | 1,577,777 | +84,664 (5.7%) | 0.04% | $408,281,862 | 2024-02-13 | |
| Q3 2023 | Added | 1,493,113 | +61,814 (4.3%) | 0.04% | $383,745,281 | 2023-11-15 | |
| Q2 2023 | Added | 1,431,299 | +125,448 (9.6%) | 0.04% | $407,705,928 | 2023-08-14 | |
| Q1 2023 | Reduced | 1,305,851 | -116,965 (-8.2%) | 0.04% | $363,066,271 | 2023-05-15 | |
| Q4 2022 | Added | 1,422,816 | +180,012 (14.5%) | 0.04% | $394,006,366 | 2023-02-14 | |
| Q3 2022 | Reduced | 1,242,804 | -134,131 (-9.7%) | 0.05% | $331,829,000 | 2022-11-14 | |
| Q2 2022 | Added | 1,376,935 | +421,110 (44.1%) | 0.04% | $280,813,000 | 2022-08-15 | |
| Q1 2022 | Added | 955,825 | +175,345 (22.5%) | 0.03% | $201,297,000 | 2022-05-13 | |
| Q4 2021 | Added | 780,480 | +26,765 (3.6%) | 0.02% | $187,253,000 | 2022-02-14 | |
| Q3 2021 | Added | 753,715 | +51,540 (7.3%) | 0.03% | $213,294,000 | 2021-11-15 | |
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Who else reported the position
1140 managers reported BIOGEN INC for Q2 2026.
| Manager | Activity | Shares | Change | % of reported 13F | Reported value | Tenure |
|---|---|---|---|---|---|---|
| FMR LLC | Added | 18,217,239 | +5,409,698 | 0.17% | $3,936,016,552 | 53 qtrs |
| BlackRock Inc | Added | 15,985,736 | +11,135 | 0.05% | $3,453,877,982 | 8 qtrs |
| PRIMECAP MANAGEMENT CO CA | Added | 15,154,606 | +396,999 | 1.94% | $3,274,304,389 | 53 qtrs |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | 9,651,117 | +113,700 | 0.04% | $2,085,220,339 | 2 qtrs |
| STATE STREET CORPORATION | Added | 7,344,327 | +176,405 | 0.05% | $1,586,815,292 | 53 qtrs |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | 6,604,936 | +73,209 | 0.06% | $1,427,062,472 | 2 qtrs |
| GEODE CAPITAL MANAGEMENT LLC | Added | 4,449,295 | +106,693 | 0.05% | $957,935,835 | 53 qtrs |
| WELLINGTON MANAGEMENT GROUP LLP | Added | 3,117,469 | +155,828 | 0.12% | $673,560,352 | 53 qtrs |
| NORGES BANK | New | 2,580,033 | +2,580,033 | 0.06% | $557,441,930 | 53 qtrs |
| MORGAN STANLEY This report | Added | 2,411,271 | +240,331 | 0.03% | $520,979,947 | 53 qtrs |
Filing details and methodology As reported
- Report period
- June 30, 2026
- Filed
- August 13, 2026
- Filing type
- 13F-HR
- Position type
- COM
Voting authority reported
- Sole
- 1,957,187
- Shared
- 0
- None
- 454,084
“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.
Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.