MRSN — Mersana Therapeutics Inc Institutional Holders · Q1 2026
Who owns Mersana Therapeutics Inc (MRSN)? 51 institutions reported holding $87 in SEC 13F filings for Q1 2026 (period ended 2026-03-31). Largest holders: IFP Advisors, Inc ($87), Royal Bank of Canada ($0), FMR LLC ($0).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IFP Advisors, Inc | $87 | 3 | Hold |
| 2 | Royal Bank of Canada | $0 | 0 | Exited |
| 3 | FMR LLC | $0 | 0 | Exited |
| 4 | EQUITEC PROPRIETARY MARKETS, LLC | $0 | 0 | Exited |
| 5 | BNP PARIBAS FINANCIAL MARKETS | $0 | 0 | Exited |
| 6 | AQR CAPITAL MANAGEMENT LLC | $0 | 0 | Exited |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
| 8 | DELTEC ASSET MANAGEMENT LLC | $0 | 0 | Exited |
| 9 | MILLENNIUM MANAGEMENT LLC | $0 | 0 | Exited |
| 10 | CREDIT INDUSTRIEL ET COMMERCIAL | $0 | 0 | Exited |
| 11 | North Star Investment Management Corp. | $0 | 0 | Exited |
| 12 | CITADEL ADVISORS LLC | $0 | 0 | Exited |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 14 | Rangeley Capital, LLC | $0 | 0 | Exited |
| 15 | GABELLI FUNDS LLC | $0 | 0 | Exited |
| 16 | CWM, LLC | $0 | 0 | Exited |
| 17 | Yakira Capital Management, Inc. | $0 | 0 | Exited |
| 18 | Nextech Invest, Ltd. | $0 | 0 | Exited |
| 19 | Rock Springs Capital Management LP | $0 | 0 | Exited |
| 20 | Point72 Asset Management, L.P. | $0 | 0 | Exited |
| 21 | OMERS ADMINISTRATION Corp | $0 | 0 | Exited |
| 22 | STATE STREET CORP | $0 | 0 | Exited |
| 23 | Lion Point Capital, LP | $0 | 0 | Exited |
| 24 | Mint Tower Capital Management B.V. | $0 | 0 | Exited |
| 25 | OSAIC HOLDINGS, INC. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31