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Biogen Inc. (BIIB)
NASDAQ:BIIB
Biogen (BIIB) Ownership Overview
0.18% Insiders
30.72% Mutual Funds
0.20% Other Institutional Investors
28.06% ETFs
40.84% Public Companies and Individual Investors
The ownership structure of Biogen (BIIB) stock is a mix of institutional, retail, and individual investors. Approximately 58.98% of the company’s stock is owned by Institutional Investors, 0.18% is owned by Insiders, and 40.84% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
Sep 02, 2025 | xxxxxxxxxxxxx | $69045 | |
Jul 16, 2025 | xxxxxxxxxxxxx | $300105 | |
May 05, 2025 | xxxxxxxxxxxxx | $151559 | |
Mar 10, 2025 | xxxxxxxxxxxxx | $1314088 |
Recent Hedge Fund Trading Activity
Date | Firm | Activity | Value |
|---|---|---|---|
Sep 30, 2025 | xxxxxxxxxxxxx | $464925 | |
Sep 30, 2025 | xxxxxxxxxxxxx | $1423492 | |
Sep 30, 2025 | xxxxxxxxxxxxx | $2630562 | |
Sep 30, 2025 | xxxxxxxxxxxxx | $5600818 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 15,231,620 | Institution | 10.38% | 2,715,797,846 | |
| 14,954,697 | Institution | 10.19% | 2,666,422,475 | |
| 13,882,833 | Institution | 9.46% | 2,475,309,124 | |
| 9,401,373 | Institution | 6.41% | 1,676,264,806 | |
| 8,452,780 | Institution | 5.76% | 1,507,130,674 | |
| 6,244,663 | Institution | 4.26% | 1,113,423,413 | |
| 3,362,885 | Institution | 2.29% | 599,602,396 | |
| 2,551,528 | Institution | 1.74% | 454,937,442 | |
| 2,336,557 | Institution | 1.59% | 416,608,113 | |
| 2,092,354 | Institution | 1.43% | 373,066,718 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 13,882,833 | Institution | 9.46% | 2,475,309,124 | |
| 8,452,780 | Institution | 5.76% | 1,507,130,674 | |
| 3,362,885 | Institution | 2.29% | 599,602,396 | |
| 2,551,528 | Institution | 1.74% | 454,937,442 | |
| 2,336,557 | Institution | 1.59% | 416,608,113 | |
| 1,919,880 | Institution | 1.31% | 342,314,604 | |
| 1,319,866 | Institution | 0.90% | 235,332,108 | |
| 1,044,135 | Institution | 0.71% | 186,169,271 | |
| 925,781 | Institution | 0.63% | 165,066,752 | |
| 580,884 | Institution | 0.40% | 103,571,617 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 4,608,231 | Institution | 3.14% | 839,112,783 | |
| 3,705,939 | Institution | 2.53% | 674,814,433 | |
| 3,233,084 | Institution | 2.20% | 588,712,266 | |
| 1,906,551 | Institution | 1.30% | 353,913,062 | |
| 1,774,461 | Institution | 1.21% | 332,924,373 | |
| 1,774,461 | Institution | 1.21% | 332,924,373 | |
| 1,341,715 | Institution | 0.91% | 244,312,884 | |
| 1,083,135 | Institution | 0.74% | 201,062,350 | |
| 1,065,134 | Institution | 0.73% | 199,840,441 | |
| 900,973 | Institution | 0.61% | 164,058,174 |
FAQ
Who Owns Biogen Inc. (BIIB)?
According to the latest TipRanks data, approximately 0.20% of the company's stock is held by institutional investors, 0.18% is held by insiders, and 40.84% is held by retail investors.
What percentage of Biogen Inc. (BIIB) stock is held by institutional investors?
According to the latest TipRanks data, approximately 0.20% of Biogen Inc. (BIIB) stock is held by institutional investors.
What percentage of Biogen Inc. (BIIB) stock is held by retail investors?
According to the latest TipRanks data, approximately 40.84% of Biogen Inc. (BIIB) stock is held by retail investors.
Who owns the most shares of Biogen Inc. (BIIB)?
Vanguard owns the most shares of Biogen Inc. (BIIB).
What is the significance of the ownership structure for a publicly traded company?
The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.