Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 24 U.S. retirement plans report holding Biogen, Inc. Common Stock in their Schedule of Assets, totaling $26.5M in parsed positions. Matched on the normalized security name across each plan’s latest filing and ranked by position size.
Open any plan below to unlock verified email + phone for its decision-makers — the Form 5500 signer, CFO, and HR & Benefits leads.
| # | Sponsor / Plan | Location | Participants | Plan assets (EOY) | Position |
|---|---|---|---|---|---|
| 1 | COSTCO WHOLESALE CORPORATION COSTCO 401K RETIREMENT PLAN | ISSAQUAH WA | 212,976 | $41.0B | $9.1M |
| 2 | NORFOLK SOUTHERN CORPORATION MASTER TRUST FOR JOINT ADMINISTRATION OF PENSION PLANS | ATLANTA GA | — | $2.6B | $5.5M |
| 3 | THE BOEING CO. AND CONSOLIDATED SUBSIDIARIES |
SEATTLE WA |
| — |
| $73.5B |
| $3.5M |
| 4 | QUAD/GRAPHICS, INC. QUAD/GRAPHICS MASTER TRUST | SUSSEX WI | — | $2.1B | $1.6M |
| 5 | WESTROCK COMPANY WESTROCK COMPANY 401K RETIREMENT SAVINGS PLAN TRUST | ATLANTA GA | — | $4.8B | $1.5M |
| 6 | L3HARRIS TECHNOLOGIES, INC. L3HARRIS RETIREMENT SAVINGS PLAN MASTER TRUST | MELBOURNE FL | — | $16.2B | $1.1M |
| 7 | EXXON MOBIL CORPORATION EXXONMOBIL PENSION PLAN | SPRING TX | 22,227 | $12.1B | $884K |
| 8 | BANK OF AMERICA CORPORATION THE BANK OF AMERICA PENSION PLAN | RIVERSIDE RI | 51,062 | $19.0B | $630K |
| 9 | EXELON CORPORATION EXELON CORPORATION DCRP MASTER TRUST - PRIMARY | CHICAGO IL | — | $6.1B | $587K |
| 10 | EXELON CORPORATION EXELON CORP PENSION MASTER TRUST- EQUITY | CHICAGO IL | — | $2.3B | $471K |
