Immuneering Corporation (IMRX) ownership: Top institutional holder: FMR LLC ($51.11M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| FMR LLC | 9697938.00 | $51.11M | 2026-03-31 |
| Empery Asset Management, LP | 2674950.00 | $17.60M | 2025-12-31 |
| VANGUARD GROUP INC | 2568293.00 | $16.90M | 2025-12-31 |
| Sanofi | 2708559.00 | $14.27M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2288341.00 | $12.06M | 2026-03-31 |
| MARSHALL WACE, LLP | 1996585.00 | $10.52M | 2026-03-31 |
| BlackRock, Inc. | 1507258.00 | $7.94M | 2026-03-31 |
| MILLENNIUM MANAGEMENT LLC | 1102712.00 | $5.81M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-11 | |
| Sell | null | 2026-06-11 | |
| Sell | null | 2026-06-11 | |
| Sell | null | 2026-06-11 | |
| Sell | null | 2026-06-11 | |
| Sell | null | 2026-03-13 | |
| Sell | null | 2026-03-13 | |
| Sell | null | 2026-02-03 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.