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Biogen (BIIB) Ownership Overview
0.18% Insiders
36.50% Mutual Funds
0.01% Other Institutional Investors
28.58% ETFs
34.73% Public Companies and Individual Investors
The ownership structure of Biogen (BIIB) stock is a mix of institutional, retail, and individual investors. Approximately 65.09% of the company’s stock is owned by Institutional Investors, 0.18% is owned by Insiders, and 34.73% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
Feb 17, 2026 | xxxxxxxxxxxxx | $585 | |
Feb 10, 2026 | xxxxxxxxxxxxx | $531548 | |
Feb 03, 2026 | xxxxxxxxxxxxx | $134116 | |
Sep 02, 2025 | xxxxxxxxxxxxx | $69045 |
Recent Hedge Fund Trading Activity
Date | Firm | Activity | Value |
|---|---|---|---|
Mar 31, 2024 | xxxxxxxxxxxxx | $1625954 | |
Mar 31, 2024 | xxxxxxxxxxxxx | $1154979 | |
Mar 31, 2024 | xxxxxxxxxxxxx | $2749950 | |
Mar 31, 2024 | xxxxxxxxxxxxx | $3546336 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 15,517,397 | Institution | 10.51% | 3,353,619,840 | |
| 14,757,607 | Institution | 10.00% | 3,189,414,025 | |
| 14,038,837 | Institution | 9.51% | 3,034,073,452 | |
| 10,066,484 | Institution | 6.82% | 2,175,568,522 | |
| 8,359,880 | Institution | 5.66% | 1,806,737,266 | |
| 6,297,385 | Institution | 4.27% | 1,360,990,846 | |
| 4,077,712 | Institution | 2.76% | 881,275,117 | |
| 2,741,710 | Institution | 1.86% | 592,538,365 | |
| 2,526,097 | Institution | 1.71% | 545,940,084 | |
| 2,332,567 | Institution | 1.58% | 504,114,380 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 14,038,837 | Institution | 9.51% | 3,034,073,452 | |
| 8,359,880 | Institution | 5.66% | 1,806,737,266 | |
| 4,077,712 | Institution | 2.76% | 881,275,117 | |
| 2,741,710 | Institution | 1.86% | 592,538,365 | |
| 2,526,097 | Institution | 1.71% | 545,940,084 | |
| 2,332,567 | Institution | 1.58% | 504,114,380 | |
| 1,861,140 | Institution | 1.26% | 402,229,577 | |
| 1,579,047 | Institution | 1.07% | 341,263,638 | |
| 1,530,784 | Institution | 1.04% | 330,833,038 | |
| 1,316,936 | Institution | 0.89% | 284,616,208 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 4,672,124 | Institution | 3.16% | 915,736,304 | |
| 3,842,638 | Institution | 2.60% | 753,157,048 | |
| 3,184,059 | Institution | 2.16% | 624,075,564 | |
| 2,029,149 | Institution | 1.37% | 438,539,682 | |
| 1,786,859 | Institution | 1.21% | 374,775,807 | |
| 1,760,185 | Institution | 1.19% | 310,109,393 | |
| 1,369,294 | Institution | 0.93% | 268,381,624 | |
| 1,048,944 | Institution | 0.71% | 226,697,777 | |
| 1,046,763 | Institution | 0.71% | 219,548,072 | |
| 953,138 | Institution | 0.65% | 186,815,048 |
FAQ
Who Owns Biogen Inc. (BIIB)?
According to the latest TipRanks data, approximately 0.01% of the company's stock is held by institutional investors, 0.18% is held by insiders, and 34.73% is held by retail investors.
What percentage of Biogen Inc. (BIIB) stock is held by institutional investors?
According to the latest TipRanks data, approximately 0.01% 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 34.73% 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.