Immuneering
IMRX · NASDAQ
$3.73+$0.07 (+1.91%)TodayMarket closed ·
Prev close $3.66
Who owns IMRX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 48.0% of IMRX’s shares.
- Fidelity Management & Research Company LLC14.9%
- BlackRock Institutional Trust Company, N.A.6.2%
- HBM Partners AG5.6%
- Zeskind (Benjamin J)5.0%
- Next 6 largest institutions16.3%
- All other shareholders52.0%
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Management & Research Company LLC | 9.61M | 14.86% |
| BlackRock Institutional Trust Company, N.A. | 4.03M | 6.23% |
| HBM Partners AG | 3.65M | 5.64% |
| Zeskind (Benjamin J) | 3.21M | 4.96% |
| Sanofi SA | 2.71M | 4.19% |
| Vanguard Capital Management, LLC | 2.29M | 3.53% |
| T. Rowe Price Associates, Inc. | 1.89M | 2.92% |
| Geode Capital Management, L.L.C. | 1.37M | 2.12% |
| Feinberg (Peter) | 1.16M | 1.79% |
| Carpenter (Robert J) | 1.15M | 1.78% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Growth Company Fund | 2.94M | 4.54% |
| Vanguard Total Stock Market Index Fund | 1.62M | 2.51% |
| iShares Russell 2000 ETF | 1.36M | 2.10% |
| Fidelity Select Biotechnology Portfolio | 1.10M | 1.69% |
| T. Rowe Price New Horizons Fund | 906.76K | 1.40% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $35.99K (2 trades) of IMRX on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Gengos Andrew | Award | 650.00K | — |
| Zeskind Benjamin J. | Buy | 2.40K | $10.95K |
| Hall Brett Matthew | Buy | 6.04K | $25.05K |
| Feinberg Peter | Award | 33.35K | — |
| KEATING LAURIE | Award | 33.35K | — |
| HAUSMAN DIANA | Award | 33.35K | — |
| Schall Thomas J. | Award | 33.35K | — |
| CARPENTER ROBERT J | Award | 33.35K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 15.49M
- Days to cover
- 24.22
- % of shares outstanding
- 23.95%
- Average daily volume
- 639.76K
- Change since last report
- −0.4%
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