- Type / Class
- Equity / Common Stock
- Shares outstanding
- 147,079,094
- Total 13F shares
- 129,287,238
- Share change
- +2,388,383
- Total reported value
- $16,238,624,437
- Put/Call ratio
- 91%
- Price per share
- $125.59
- Number of holders
- 856
- Value change
- +$284,309,412
- Number of buys
- 419
- Number of sells
- 358
Quarterly Holders Quick Answers
What is CUSIP 09062X103?
CUSIP 09062X103 identifies BIIB - BIOGEN INC. - Common Stock in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
Next holder-history checks
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- Back to full security ownership history for the broader multi-quarter picture.
- Latest 13F filings for newly reported positions across managers.
- Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
- SEC investors directory for manager drilldown.
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Jump to adjacent filing periods for faster comparison and easier crawl discovery.
Recent filing periods for CUSIP 09062X103:
Top shareholders of BIIB - BIOGEN INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
12%
|
17,032,839
|
$2,330,773,689 | — | 31 Mar 2025 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
|
Company |
11%
|
15,943,259
|
$2,181,675,561 | — | 31 Mar 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
8.5%
from 13D/G
|
15,211,036
|
$2,081,478,238 | — | 31 Mar 2025 | |
| STATE STREET CORP |
13F
|
Company |
5%
|
7,396,910
|
$1,012,193,164 | — | 31 Mar 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
3.2%
|
4,672,437
|
$639,376,280 | — | 31 Mar 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.6%
|
3,846,864
|
$524,767,903 | — | 31 Mar 2025 | |
| T. Rowe Price Investment Management, Inc. |
13F
|
Company |
1.8%
|
2,660,290
|
$364,035,000 | — | 31 Mar 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.5%
|
2,265,007
|
$309,943,557 | — | 31 Mar 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.4%
|
1,990,668
|
$272,403,521 | — | 31 Mar 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
1.1%
|
1,585,572
|
$216,969,673 | — | 31 Mar 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
1%
|
1,510,386
|
$206,681,219 | — | 31 Mar 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1%
|
1,501,087
|
$205,408,747 | — | 31 Mar 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1%
|
1,463,720
|
$200,295,542 | — | 31 Mar 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.93%
|
1,368,842
|
$187,257,678 | — | 31 Mar 2025 | |
| Pacer Advisors, Inc. |
13F
|
Company |
0.92%
|
1,352,560
|
$185,084,310 | — | 31 Mar 2025 | |
| FMR LLC |
13F
|
Company |
0.89%
|
1,308,828
|
$179,099,992 | — | 31 Mar 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.87%
|
1,285,027
|
$175,843,087 | — | 31 Mar 2025 | |
| Amundi |
13F
|
Individual |
0.89%
|
1,315,947
|
$172,007,432 | — | 31 Mar 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.83%
|
1,226,709
|
$167,862,860 | — | 31 Mar 2025 | |
| Alexander J. Denner |
3/4/5
|
Director |
—
class O/S missing
|
658,099
|
$163,208,552 | — | 15 Jun 2022 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.78%
|
1,151,192
|
$157,531,000 | — | 31 Mar 2025 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
0.73%
|
1,073,622
|
$146,915,000 | — | 31 Mar 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.69%
|
1,019,219
|
$139,469,928 | — | 31 Mar 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.67%
|
986,719
|
$135,039,721 | — | 31 Mar 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.65%
|
953,811
|
$130,519,534 | — | 31 Mar 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.64%
|
941,052
|
$128,773,556 | — | 31 Mar 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.62%
|
918,353
|
$125,667,423 | — | 31 Mar 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.6%
|
879,330
|
$120,327,517 | — | 31 Mar 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.55%
|
804,506
|
$110,088,601 | — | 31 Mar 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.53%
|
786,219
|
$107,586,208 | — | 31 Mar 2025 | |
| Man Group plc |
13F
|
Company |
0.52%
|
765,321
|
$104,726,525 | — | 31 Mar 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.5%
|
729,856
|
$99,873,494 | — | 31 Mar 2025 | |
| SG Americas Securities, LLC |
13F
|
Company |
0.49%
|
719,793
|
$98,496,000 | — | 31 Mar 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
0.48%
|
708,415
|
$96,939,509 | — | 31 Mar 2025 | |
| Employees Provident Fund Board |
13F
|
Company |
0.48%
|
704,196
|
$96,362,180 | — | 31 Mar 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.46%
|
677,400
|
$92,695,416 | — | 31 Mar 2025 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.45%
|
667,767
|
$91,377,236 | — | 31 Mar 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.45%
|
661,420
|
$90,508,788 | — | 31 Mar 2025 | |
| UBS Group AG |
13F
|
Company |
0.44%
|
646,147
|
$88,418,755 | — | 31 Mar 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.41%
|
604,697
|
$82,746,706 | — | 31 Mar 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
0.4%
|
588,117
|
$80,477,930 | — | 31 Mar 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.37%
|
541,764
|
$74,134,986 | — | 31 Mar 2025 | |
| HSBC HOLDINGS PLC |
13F
|
Company |
0.33%
|
484,029
|
$65,998,928 | — | 31 Mar 2025 | |
| Patient Capital Management, LLC |
13F
|
Company |
0.31%
|
455,605
|
$62,345,003 | — | 31 Mar 2025 | |
| Robeco Institutional Asset Management B.V. |
13F
|
Company |
0.31%
|
453,529
|
$62,060,908 | — | 31 Mar 2025 | |
| CAUSEWAY CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.29%
|
433,517
|
$59,322,464 | — | 31 Mar 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.29%
|
423,997
|
$58,019,749 | — | 31 Mar 2025 | |
| PRUDENTIAL FINANCIAL INC |
13F
|
Company |
0.29%
|
420,649
|
$57,561,610 | — | 31 Mar 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.28%
|
416,960
|
$57,056,806 | — | 31 Mar 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.28%
|
415,510
|
$56,858,388 | — | 31 Mar 2025 |
Institutional Holders of BIOGEN INC. - Common Stock (BIIB) as of Q2 2025
As of 30 Jun 2025,
BIOGEN INC. - Common Stock (BIIB) was held by
856 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
129,287,238 shares.
The largest 10 holders included
VANGUARD GROUP INC, PRIMECAP MANAGEMENT CO/CA/, BlackRock, Inc., STATE STREET CORP, WELLINGTON MANAGEMENT GROUP LLP, GEODE CAPITAL MANAGEMENT, LLC, Point72 Asset Management, L.P., Invesco Ltd., NORGES BANK, and MORGAN STANLEY.
This page lists
859
institutional shareholders reporting positions in this security
for the Q2 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
865
Q2 2025 holders
856
Holder diff
-9
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 Value $ | Q2 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.