Immuneering Corp. Class AIMRX
13F holders, Q4 2025 (December 31)85holders +17
28new positions
14sold out
3famous investors
$6.58avg. 13F price*
At the end of Q4 2025, 85 institutions reported holding Immuneering Corp. Class A (IMRX) in their 13F filings, up 17 from Q3 2025. 28 opened new positions and 14 sold out. The largest holders were FMR LLC ($63.7M), Sanofi ($17.8M) and Empery Asset Management, LP ($17.6M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Immuneering Corp. Class A
- CUSIP
- 45254E107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 28 | $11.9M |
| Exits | 14 | $25.2M |
All 13F filers, Q3 2025 → Q4 2025: 7,734,589 shares bought and 4,765,224 shares sold, net +2,969,365 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 85 holders
| FMR LLC | 0.00% | Add +10.2% | 9,685,495 | $63.7M |
| Sanofi | 5.74% | No change | 2,708,559 | $17.8M |
| Empery Asset Management, LP | 15.58% | — | 2,674,950 | $17.6M |
| Vanguard Group Inc. | 0.00% | Add +6.3% | 2,568,293 | $16.9M |
| State Street Corp. | 0.00% | Add +1289.7% | 2,402,238 | $15.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +10.8% | 1,993,958 | $13.1M |
| BlackRock, Inc. | 0.00% | Add +113.1% | 1,451,706 | $9.6M |
| Marshall Wace, LLP | 0.00% | Add +162.4% | 711,875 | $4.7M |
| Blue Owl Capital Holdings LP | 1.36% | Add +20.9% | 665,000 | $4.4M |
| Geode Capital Management, LLC | 0.00% | Add +20.3% | 618,074 | $4.1M |
| Occam Crest Management LP | 2.35% | No change | 498,498 | $3.3M |
| Morgan Stanley | 0.00% | Add +66.0% | 489,617 | $3.2M |
| Goldman Sachs Group Inc. | 0.00% | New | 318,809 | $2.1M |
| Burkehill Global Management, LP | 0.14% | No change | 300,000 | $2.0M |
| Southport Management, L.L.C. | 6.37% | Add +1.8% | 277,501 | $1.8M |
| Diametric Capital, LP | 0.44% | Reduce -2.1% | 246,857 | $1.6M |
| Barclays PLC | 0.00% | Add +943.2% | 230,726 | $1.5M |
| DCF Advisers, LLC | 0.47% | New | 215,000 | $1.4M |
| Bank of America Corp. | 0.00% | Add +389.9% | 214,341 | $1.4M |
| Two Sigma Investments, LP | 0.00% | Add +92.0% | 207,155 | $1.4M |
| UBS Group AG | 0.00% | Add +50.6% | 190,333 | $1.3M |
| Qube Research & Technologies Ltd | 0.00% | New | 165,875 | $1.1M |
| Renaissance Technologies | 0.00% | Add +335.1% | 152,300 | $1.0M |
| 683 Capital Management, LLC | 0.09% | New | 150,697 | $992K |
| Woodline Partners LP | 0.00% | No change | 150,000 | $987K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 132,680 | $873K |
| Rafferty Asset Management, LLC | 0.00% | New | 130,742 | $860K |
| Bridgeway Capital Management, LLC | 0.02% | No change | 120,449 | $793K |
| Kingsview Wealth Management, LLC | 0.01% | Add +31.8% | 118,600 | $780K |
| TD Asset Management Inc | 0.00% | Reduce -18.8% | 117,846 | $775K |
| HighTower Advisors, LLC | 0.00% | Reduce -16.0% | 111,324 | $733K |
| Northern Trust Corp. | 0.00% | Add +18.5% | 109,061 | $718K |
| Susquehanna International Group, LLP | 0.00% | New | 107,472 | $707K |
| Jane Street Group, LLC | 0.00% | New | 102,034 | $671K |
| Squarepoint Ops LLC | 0.00% | New | 92,256 | $607K |
| Citadel Advisors | 0.00% | Reduce -90.4% | 90,459 | $595K |
| Hudson Bay Capital Management LP | 0.00% | Reduce -17.1% | 84,973 | $559K |
| Landscape Capital Management, L.L.C. | 0.04% | New | 82,349 | $542K |
| Prelude Capital Management, LLC | 0.04% | Add +10.4% | 80,000 | $526K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +0.7% | 69,738 | $469K |
| Palumbo Wealth Management LLC | 0.10% | Add +29.0% | 63,273 | $416K |
| Fox Run Management, L.L.C. | 0.05% | New | 51,773 | $341K |
| Millennium Management | 0.00% | Reduce -78.5% | 50,923 | $335K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 47,800 | $315K |
| Profund Advisors LLC | 0.01% | New | 47,135 | $310K |
| Flower City Capital | 0.14% | Add +44.5% | 42,229 | $278K |
| Citigroup Inc. | 0.00% | Add +4615.7% | 37,537 | $247K |
| Two Sigma Advisers, LP | 0.00% | New | 31,800 | $209K |
| EntryPoint Capital, LLC | 0.08% | New | 31,237 | $206K |
| LPL Financial LLC | 0.00% | Add +30.0% | 29,125 | $192K |
| CIBC Private Wealth Group LLC | 0.00% | Reduce -43.1% | 28,500 | $188K |
| Berman McAleer LLC | 0.02% | No change | 25,000 | $165K |
| First Manhattan Co. Llc. | 0.00% | No change | 24,245 | $160K |
| Alethea Capital Management, LLC | 0.07% | No change | 22,935 | $151K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 22,344 | $147K |
| Tidemark, LLC | 0.04% | Reduce -55.0% | 20,000 | $132K |
| Resonant Capital Advisors, LLC | 0.01% | No change | 20,000 | $132K |
| PNC Financial Services Group, Inc. | 0.00% | No change | 20,000 | $132K |
| Dimensional Fund Advisors LP | 0.00% | No change | 19,562 | $129K |
| Great Valley Advisor Group, Inc. | 0.00% | New | 19,000 | $125K |
| Lighthouse Investment Partners, LLC | 0.00% | New | 17,760 | $117K |
| Nations Financial Group Inc, /Ia/ | 0.01% | New | 16,000 | $105K |
| China Universal Asset Management Co., Ltd. | 0.01% | Add +210.4% | 15,522 | $102K |
| Wendell David Associates Inc. | 0.01% | No change | 15,000 | $99K |
| Wells Fargo & Company | 0.00% | No change | 15,000 | $99K |
| Kelsey Financial, LLC | 0.08% | — | 14,099 | $93K |
| Future Financial Wealth Managment LLC | 0.06% | Add +260.0% | 18,000 | $86K |
| Simplex Trading, LLC | 0.00% | New | 12,950 | $85K |
| Thayer Partners, LLC / MA | 0.04% | — | 11,000 | $72K |
| Ausdal Financial Partners, Inc. | 0.00% | New | 11,000 | $72K |
| SummitTX Capital, L.P. | 0.00% | New | 10,469 | $69K |
| Moors & Cabot, Inc. | 0.00% | Reduce -9.1% | 10,000 | $66K |
| Mercer Global Advisors Inc. | 0.00% | No change | 10,000 | $66K |
| Vontobel Holding Ltd. | 0.00% | Reduce -53.5% | 10,000 | $66K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 7,627 | $51K |
| JPMorgan Chase & Co. | 0.00% | Add +351.0% | 6,765 | $45K |
| Caitong International Asset Management Co., Ltd | 0.01% | New | 4,998 | $33K |
| Osaic Holdings, Inc. | 0.00% | No change | 4,300 | $28K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | New | 3,138 | $21K |
| BNP Paribas Financial Markets | 0.00% | Add +755.0% | 2,240 | $15K |
| Flagship Harbor Advisors, LLC | 0.00% | New | 1,500 | $10K |
| GF Fund Management Co. LTD. | 0.00% | New | 1,268 | $8K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -20.1% | 345 | $2K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 107 | $704 |
| Jones Financial Companies LLLP | 0.00% | New | 30 | $197 |
"% of holder's portfolio" is IMRX's weight in each manager's 13F, not the share of Immuneering Corp. Class A the manager owns.