Who owns Immuneering Corp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of IMRX from SEC Form 13F filings across 111 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 111 institutions disclosed 34.4M shares of Immuneering Corp worth $171.6M — about 53.2% of shares outstanding; the largest disclosed holder is FMR LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
111
13F holders
$171.6M
value, 2026 filers
53.2%
of shares outstanding (34.4M sh)
41
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of IMRX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 9.7M | $48.4M | 0.0% | 15% | +0.1% |
| 2 | BlackRock, Inc. | 4.4M | $21.8M | 0.0% | 6.8% | +190.2% |
| 3 | Sanofi | 2.7M | $13.5M | 2.5% | 4.2% | 0.0% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLCNEW | 2.3M | $11.4M | 0.0% | 3.5% | new |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.9M | $9.7M | 0.0% | 3% | +5.8% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 1.4M | $6.8M | 0.0% | 2.1% | +114.9% |
| 7 | STATE STREET CORP | 1.0M | $5.0M | 0.0% | 1.5% | +273.2% |
| 8 | DCF Advisers, LLC | 790,000 | $3.9M | 0.7% | 1.2% | +458.5% |
| 9 | MARSHALL WACE, LLP | 731,897 | $3.7M | 0.0% | 1.1% | -63.3% |
| 10 | Connor, Clark & Lunn Investment Management Ltd. | 601,255 | $3.0M | 0.0% | 0.9% | +50.2% |
| 11 | ALETHEA CAPITAL MANAGEMENT, LLC | 472,935 | $2.4M | 1.0% | 0.7% | +1962.1% |
| 12 | Summit Financial, LLC | 452,264 | $2.3M | 0.0% | 0.7% | +20.0% |
| 13 | UBS Group AG | 448,857 | $2.2M | 0.0% | 0.7% | +19.3% |
| 14 | Nuveen, LLCNEW | 438,362 | $2.2M | 0.0% | 0.7% | new |
| 15 | NORTHERN TRUST CORP | 436,992 | $2.2M | 0.0% | 0.7% | +271.4% |
| 16 | LEVIN CAPITAL STRATEGIES, L.P. | 414,000 | $2.1M | 0.1% | 0.6% | +4040.0% |
| 17 | CITADEL ADVISORS LLC | 386,411 | $1.9M | 0.0% | 0.6% | -13.6% |
| 18 | VANGUARD FIDUCIARY TRUST CONEW | 360,764 | $1.8M | 0.0% | 0.6% | new |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLCNEW | 359,085 | $1.8M | 0.0% | 0.6% | new |
| 20 | GSA CAPITAL PARTNERS LLP | 343,303 | $1.7M | 0.1% | 0.5% | +347.3% |
| 21 | MILLENNIUM MANAGEMENT LLC | 330,402 | $1.6M | 0.0% | 0.5% | -70.0% |
| 22 | Burkehill Global Management, LP | 300,000 | $1.5M | 0.1% | 0.5% | 0.0% |
| 23 | TWO SIGMA INVESTMENTS, LP | 288,420 | $1.4M | 0.0% | 0.4% | +17.8% |
| 24 | Occam Crest Management LP | 278,498 | $1.1M | 0.6% | 0.4% | -48.9% |
| 25 | MORGAN STANLEY | 226,491 | $1.1M | 0.0% | 0.4% | -23.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.