Immuneering Corp (IMRX) — Institutional Holders, Q2 2026
112 institutional investment managers reported a IMRX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $171.7M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
IMRX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockAdded · +2,866,762 sh+$14.3M
- VANGUARD CAPITAL MANAGEMENTNew · +2,286,434 sh+$11.4M
- STATE STREETAdded · +733,475 sh+$3.7M
- GEODE CAPITAL MANAGEMENTAdded · +732,806 sh+$3.7M
- DCF AdvisersAdded · +648,538 sh+$3.2M
Biggest sellers
- MARSHALL WACE, LLPTrimmed · -1,264,688 sh-$6.3M
- MILLENNIUM MANAGEMENTTrimmed · -772,310 sh-$3.9M
- Occam Crest ManagementTrimmed · -266,600 sh-$1.3M
- GOLDMAN SACHS GROUPTrimmed · -231,435 sh-$1.2M
- Diametric CapitalSold out · -174,897 sh-$872.7K
IMRX 13F holders ranked 1–100 of 112
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | FMR#1 · 9,704,610 sh | 9,704,610 | $48.4M | <0.01% | +0.1% |
| 2 | BlackRock#2 · 4,374,020 sh | 4,374,020 | $21.8M | <0.01% | +190.2% |
| 3 | Sanofi#3 · 2,708,559 sh | 2,708,559 | $13.5M | 2.53% | 0.0% |
| 4 | VANGUARD CAPITAL MANAGEMENT#4 · 2,286,434 sh | 2,286,434 | $11.4M | <0.01% | New |
| 5 | PRICE T ROWE ASSOCIATES#5 · 1,936,076 sh | 1,936,076 | $9.7M | <0.01% | +5.8% |
| 6 | GEODE CAPITAL MANAGEMENT#6 · 1,370,750 sh | 1,370,750 | $6.8M | <0.01% | +114.9% |
| 7 | STATE STREET#7 · 1,001,995 sh | 1,001,995 | $5.0M | <0.01% | +273.2% |
| 8 | DCF Advisers#8 · 790,000 sh | 790,000 | $3.9M | 0.70% | +458.5% |
| 9 | MARSHALL WACE, LLP#9 · 731,897 sh | 731,897 | $3.7M | <0.01% | -63.3% |
| 10 | Connor, Clark & Lunn Investment Management Ltd.#10 · 601,255 sh | 601,255 | $3.0M | <0.01% | +50.2% |
| 11 | ALETHEA CAPITAL MANAGEMENT#11 · 472,935 sh | 472,935 | $2.4M | 0.98% | +1962.1% |
| 12 | Summit Financial#12 · 452,264 sh | 452,264 | $2.3M | 0.02% | +20.0% |
| 13 | UBS Group AG#13 · 448,857 sh | 448,857 | $2.2M | <0.01% | +19.3% |
| 14 | Nuveen#14 · 438,362 sh | 438,362 | $2.2M | <0.01% | New |
| 15 | NORTHERN#15 · 436,992 sh | 436,992 | $2.2M | <0.01% | +271.4% |
| 16 | LEVIN CAPITAL STRATEGIES, L.P.#16 · 414,000 sh | 414,000 | $2.1M | 0.14% | +4040.0% |
| 17 | CITADEL ADVISORS#17 · 386,411 sh | 386,411 | $1.9M | <0.01% | -13.6% |
| 18 | VANGUARD FIDUCIARY#18 · 360,764 sh | 360,764 | $1.8M | <0.01% | New |
| 19 | VANGUARD PORTFOLIO MANAGEMENT#19 · 359,085 sh | 359,085 | $1.8M | <0.01% | New |
| 20 | GSA CAPITAL PARTNERS LLP#20 · 343,303 sh | 343,303 | $1.7M | 0.11% | +347.3% |
| 21 | MILLENNIUM MANAGEMENT#21 · 330,402 sh | 330,402 | $1.6M | <0.01% | -70.0% |
| 22 | Burkehill Global Management#22 · 300,000 sh | 300,000 | $1.5M | 0.05% | 0.0% |
| 23 | TWO SIGMA INVESTMENTS#23 · 288,420 sh | 288,420 | $1.4M | <0.01% | +17.8% |
| 24 | MORGAN STANLEY#24 · 226,491 sh | 226,491 | $1.1M | <0.01% | -23.5% |
| 25 | Occam Crest Management#25 · 278,498 sh | 278,498 | $1.1M | 0.59% | -48.9% |
| 26 | D. E. Shaw#26 · 203,663 sh | 203,663 | $1.0M | <0.01% | New |
| 27 | CHARLES SCHWAB INVESTMENT MANAGEMENT#27 · 167,901 sh | 167,901 | $837.8K | <0.01% | +349.6% |
| 28 | Permanent Capital Management#28 · 150,000 sh | 150,000 | $748.5K | 0.10% | New |
| 29 | PVG ASSET MANAGEMENT#29 · 146,451 sh | 146,451 | $730.8K | — | -0.1% |
| 30 | HighTower Advisors#30 · 143,486 sh | 143,486 | $716.0K | <0.01% | +9.3% |
| 31 | Bank of New York Mellon#31 · 132,004 sh | 132,004 | $658.7K | <0.01% | New |
| 32 | Kingsview Wealth Management#32 · 123,000 sh | 123,000 | $613.8K | <0.01% | +0.7% |
| 33 | BANK OF AMERICA#33 · 115,845 sh | 115,845 | $578.1K | 0.00% | -23.2% |
| 34 | BRIDGEWAY CAPITAL MANAGEMENT#34 · 108,149 sh | 108,149 | $539.7K | <0.01% | -8.5% |
| 35 | ENVESTNET ASSET MANAGEMENT#35 · 105,809 sh | 105,809 | $528.0K | <0.01% | +384.0% |
| 36 | GOLDMAN SACHS GROUP#36 · 96,220 sh | 96,220 | $480.1K | 0.00% | -70.6% |
| 37 | Fisher Asset Management#37 · 88,333 sh | 88,333 | $440.8K | <0.01% | New |
| 38 | Corient Private Wealth#38 · 77,090 sh | 77,090 | $384.7K | <0.01% | New |
| 39 | AMERIPRISE FINANCIAL#39 · 71,454 sh | 71,454 | $356.6K | <0.01% | New |
| 40 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#40 · 69,053 sh | 69,053 | $344.6K | 0.00% | -34.6% |
| 41 | RHUMBLINE ADVISERS#41 · 65,914 sh | 65,914 | $328.9K | <0.01% | New |
| 42 | ALPS ADVISORS#42 · 65,658 sh | 65,658 | $327.6K | <0.01% | New |
| 43 | TD ASSET MANAGEMENT#43 · 65,196 sh | 65,196 | $325.3K | <0.01% | -30.9% |
| 44 | XTX Topco Ltd#44 · 64,395 sh | 64,395 | $321.3K | <0.01% | New |
| 45 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#45 · 62,141 sh | 62,141 | $310.1K | <0.01% | -10.9% |
| 46 | Clearstead Advisors#46 · 60,865 sh | 60,865 | $303.7K | <0.01% | 0.0% |
| 47 | AMERICAN CENTURY COMPANIES#47 · 59,558 sh | 59,558 | $297.2K | <0.01% | +74.0% |
| 48 | Squarepoint Ops#48 · 57,689 sh | 57,689 | $287.9K | <0.01% | -74.5% |
| 49 | ALLIANCEBERNSTEIN L.P.#49 · 52,730 sh | 52,730 | $277.9K | <0.01% | New |
| 50 | BRANDYWINE MANAGERS#50 · 55,066 sh | 55,066 | $274.8K | 0.14% | New |
| 51 | Flower City Capital#51 · 55,029 sh | 55,029 | $274.6K | — | 0.0% |
| 52 | DEUTSCHE BANK AG\#52 · 52,306 sh | 52,306 | $261.0K | <0.01% | New |
| 53 | WELLS FARGO & COMPANY#53 · 46,704 sh | 46,704 | $233.1K | 0.00% | +178.0% |
| 54 | WEALTH EFFECTS#54 · 40,100 sh | 40,100 | $200.1K | — | New |
| 55 | LPL Financial#55 · 37,030 sh | 37,030 | $184.8K | 0.00% | +52.1% |
| 56 | Prosight Management#56 · 36,861 sh | 36,861 | $183.9K | 0.03% | -70.1% |
| 57 | OPPENHEIMER#57 · 35,000 sh | 35,000 | $174.7K | — | +2.9% |
| 58 | MetLife Investment Management#58 · 33,479 sh | 33,479 | $167.1K | <0.01% | New |
| 59 | JPMORGAN CHASE#59 · 32,520 sh | 32,520 | $164.2K | 0.00% | +406.6% |
| 60 | Invesco Ltd.#60 · 31,176 sh | 31,176 | $155.6K | 0.00% | New |
| 61 | CITIGROUP#61 · 26,313 sh | 26,313 | $131.3K | 0.00% | -34.9% |
| 62 | Berman McAleer#62 · 25,000 sh | 25,000 | $124.8K | — | 0.0% |
| 63 | MIRAE ASSET GLOBAL ETFS Ltd.#63 · 24,585 sh | 24,585 | $122.7K | <0.01% | New |
| 64 | CIBC Bancorp USA#64 · 24,460 sh | 24,460 | $122.1K | <0.01% | +4.1% |
| 65 | FIRST MANHATTAN#65 · 24,245 sh | 24,245 | $121.0K | <0.01% | 0.0% |
| 66 | Vanguard Global Advisers#66 · 24,243 sh | 24,243 | $121.0K | <0.01% | New |
| 67 | Cerity Partners#67 · 24,175 sh | 24,175 | $120.6K | <0.01% | New |
| 68 | Cetera Investment Advisers#68 · 22,446 sh | 22,446 | $112.0K | <0.01% | +77.5% |
| 69 | GREAT VALLEY ADVISOR GROUP#69 · 21,120 sh | 21,120 | $105.8K | <0.01% | 0.0% |
| 70 | BARCLAYS PLC#70 · 20,358 sh | 20,358 | $101.6K | 0.00% | -83.3% |
| 71 | FNY Investment Advisers#71 · 20,000 sh | 20,000 | $99.0K | — | 0.0% |
| 72 | DIMENSIONAL FUND ADVISORS#72 · 19,562 sh | 19,562 | $97.6K | 0.00% | 0.0% |
| 73 | BNP PARIBAS FINANCIAL MARKETS#73 · 19,420 sh | 19,420 | $96.9K | 0.00% | +753.3% |
| 74 | Palumbo Wealth Management#74 · 19,083 sh | 19,083 | $95.2K | 0.02% | +2.2% |
| 75 | WINTON GROUP Ltd#75 · 17,200 sh | 17,200 | $85.8K | <0.01% | New |
| 76 | NATIONS FINANCIAL GROUP , /IA#76 · 17,000 sh | 17,000 | $84.8K | <0.01% | 0.0% |
| 77 | Kelsey Financial#77 · 16,425 sh | 16,425 | $82.0K | 0.06% | +8.8% |
| 78 | Future Financial Wealth Managment#78 · 18,000 sh | 18,000 | $79.0K | — | 0.0% |
| 79 | Police & Firemen's Retirement System of New Jersey#79 · 15,814 sh | 15,814 | $78.9K | <0.01% | New |
| 80 | WENDELL DAVID ASSOCIATES#80 · 15,000 sh | 15,000 | $75.0K | <0.01% | 0.0% |
| 81 | China Universal Asset Management , Ltd.#81 · 12,797 sh | 12,797 | $63.9K | <0.01% | +11.7% |
| 82 | Jump Financial#82 · 12,700 sh | 12,700 | $63.4K | <0.01% | +3.7% |
| 83 | Focus Financial Network#83 · 12,500 sh | 12,500 | $62.4K | — | New |
| 84 | NEW YORK STATE COMMON RETIREMENT FUND#84 · 12,100 sh | 12,100 | $60.4K | <0.01% | New |
| 85 | Quantbot Technologies#85 · 11,650 sh | 11,650 | $58.1K | <0.01% | +613.8% |
| 86 | ROYAL BANK OF CANADA#86 · 11,057 sh | 11,057 | $56.0K | 0.00% | +2971.4% |
| 87 | Thayer Partners, / MA#87 · 11,000 sh | 11,000 | $54.8K | 0.02% | 0.0% |
| 88 | INTECH INVESTMENT MANAGEMENT#88 · 10,764 sh | 10,764 | $53.7K | <0.01% | New |
| 89 | VOYA INVESTMENT MANAGEMENT#89 · 10,143 sh | 10,143 | $50.6K | 0.00% | New |
| 90 | Moors & Cabot#90 · 10,000 sh | 10,000 | $49.9K | <0.01% | 0.0% |
| 91 | Ausdal Financial Partners#91 · 10,000 sh | 10,000 | $49.9K | <0.01% | -9.1% |
| 92 | Tidemark#92 · 10,000 sh | 10,000 | $49.9K | 0.01% | 0.0% |
| 93 | VestGen Advisors#93 · 10,000 sh | 10,000 | $49.9K | <0.01% | New |
| 94 | Integrated Wealth Concepts#94 · 6,800 sh | 6,800 | $33.9K | <0.01% | New |
| 95 | State of Wyoming#95 · 5,796 sh | 5,796 | $28.9K | <0.01% | New |
| 96 | Legal & General Group Plc#96 · 5,203 sh | 5,203 | $26.0K | 0.00% | New |
| 97 | Ameritas Investment Partners#97 · 4,866 sh | 4,866 | $24.3K | <0.01% | New |
| 98 | GROUP ONE TRADING, L.P.#98 · 4,791 sh | 4,791 | $23.9K | 0.00% | +58.2% |
| 99 | Russell Investments Group, Ltd.#99 · 4,287 sh | 4,287 | $21.4K | 0.00% | New |
| 100 | Mirae Asset Global Investments , Ltd.#100 · 2,894 sh | 2,894 | $14.4K | 0.00% | -14.1% |
Funds that sold out of IMRX in Q2 2026 (21)
Held IMRX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Diametric Capital174,897 sh | 174,897 | $921.7K |
| WELLINGTON MANAGEMENT GROUP LLP156,424 sh | 156,424 | $824.4K |
| 683 Capital Management150,697 sh | 150,697 | $794.2K |
| Hudson Bay Capital Management95,889 sh | 95,889 | $505.3K |
| Weiss Asset Management87,985 sh | 87,985 | $463.7K |
| Brevan Howard Capital Management86,236 sh | 86,236 | $454.5K |
| JANE STREET GROUP77,414 sh | 77,414 | $408.0K |
| RENAISSANCE TECHNOLOGIES72,875 sh | 72,875 | $384.1K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C.67,495 sh | 67,495 | $355.7K |
| HRT FINANCIAL42,456 sh | 42,456 | $223.0K |
| HSBC PLC37,771 sh | 37,771 | $197.5K |
| PRELUDE CAPITAL MANAGEMENT29,219 sh | 29,219 | $154.0K |
| OMERS ADMINISTRATION22,400 sh | 22,400 | $118.0K |
| PNC FINANCIAL SERVICES GROUP20,000 sh | 20,000 | $105.4K |
| Schonfeld Strategic Advisors15,900 sh | 15,900 | $83.8K |
| Y-Intercept (Hong Kong) Ltd14,280 sh | 14,280 | $75.3K |
| Catalyst Funds Management Pty Ltd12,800 sh | 12,800 | $67.5K |
| Atria Investments10,758 sh | 10,758 | $56.7K |
| SIMPLEX TRADING8,942 sh | 8,942 | $47.1K |
| NATIXIS380 sh | 380 | $2.0K |
| Fortitude Family Office105 sh | 105 | $553.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.