IMRX Institutional Ownership & Shareholders
IMMUNEERING CORP - CLASS A (IMRX) is currently held by 116 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $169.59M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Fmr Llc is currently the largest disclosed institutional shareholder of IMRX tracked by InsiderSet, reporting ownership valued at approximately $48.43M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $36.34M, representing an estimated loss of -24.95% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 75% of the total disclosed IMRX value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Sanofi, and several other long-term asset managers with concentrated positions in IMMUNEERING CORP - CLASS A (IMRX).
This page ranks the largest institutional IMRX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
116
Total Reported Value
$169.59M
Largest Holder
Fmr Llc
Largest Position
$48.43M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
154
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.00% | 9,704,610 | $48,426,004 | $36,343,764 | -$12,082,240 | -24.95% | |
| Blackrock, Inc. | 0.00% | 4,374,020 | $21,826,360 | $16,380,705 | -$5,445,655 | -24.95% | |
| Sanofi | 2.53% | 2,708,559 | $13,515,709 | $10,143,553 | -$3,372,156 | -24.95% | |
| Vanguard Capital Management Llc | 0.00% | 2,286,434 | $11,409,306 | $8,562,695 | -$2,846,611 | -24.95% | |
| Price T Rowe Associates Inc | 0.00% | 1,936,076 | $9,662,000 | $7,250,605 | -$2,411,395 | -24.96% | |
| Geode Capital Management, Llc | 0.00% | 1,370,750 | $6,841,807 | $5,133,459 | -$1,708,348 | -24.97% | |
| State Street Corp | 0.00% | 1,001,995 | $4,999,955 | $3,752,471 | -$1,247,484 | -24.95% | |
| Dcf Advisers, Llc | 1.03% | 790,000 | $3,942,100 | $2,958,550 | -$983,550 | -24.95% | |
| Marshall Wace, Llp | 0.00% | 731,897 | $3,652,164 | $2,740,954 | -$911,210 | -24.95% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 601,255 | $3,000,262 | $2,251,700 | -$748,562 | -24.95% | |
| Alethea Capital Management, Llc | 0.98% | 472,935 | $2,359,946 | $1,771,142 | -$588,804 | -24.95% | |
| Summit Financial, Llc | 0.02% | 452,264 | $2,256,797 | $1,693,729 | -$563,068 | -24.95% | |
| Ubs Group Ag | 0.00% | 448,857 | $2,239,796 | $1,680,969 | -$558,827 | -24.95% | |
| Nuveen, Llc | 0.00% | 438,362 | $2,187,427 | $1,641,666 | -$545,761 | -24.95% | |
| Northern Trust Corp | 0.00% | 436,992 | $2,180,590 | $1,636,535 | -$544,055 | -24.95% | |
| Citadel Advisors Llc | 0.00% | 386,411 | $1,928,191 | $1,447,109 | -$481,082 | -24.95% | |
| Vanguard Fiduciary Trust Co | 0.00% | 360,764 | $1,800,212 | $1,351,061 | -$449,151 | -24.95% | |
| Vanguard Portfolio Management Llc | 0.00% | 359,085 | $1,791,834 | $1,344,773 | -$447,061 | -24.95% | |
| Gsa Capital Partners Llp | 0.11% | 343,303 | $1,713,000 | $1,285,670 | -$427,330 | -24.95% | |
| Millennium Management Llc | 0.00% | 330,402 | $1,648,706 | $1,237,355 | -$411,351 | -24.95% | |
| Burkehill Global Management, Lp | 0.05% | 300,000 | $1,497,000 | $1,123,500 | -$373,500 | -24.95% | |
| Two Sigma Investments, Lp | 0.00% | 288,420 | $1,439,216 | $1,080,133 | -$359,083 | -24.95% | |
| Morgan Stanley | 0.00% | 226,491 | $1,130,190 | $848,209 | -$281,981 | -24.95% | |
| Occam Crest Management Lp | 0.62% | 278,498 | $1,129,309 | $1,042,975 | -$86,334 | -7.64% | |
| D. E. Shaw & Co., Inc. | 0.00% | 203,663 | $1,016,278 | $762,718 | -$253,560 | -24.95% | |
| Charles Schwab Investment Management Inc | 0.00% | 167,901 | $837,826 | $628,789 | -$209,037 | -24.95% | |
| Pvg Asset Management Corp | 0.52% | 185,913 | $761,316 | $696,244 | -$65,072 | -8.55% | |
| Permanent Capital Management, Lp | 0.10% | 150,000 | $748,500 | $561,750 | -$186,750 | -24.95% | |
| Bank Of New York Mellon Corp | 0.00% | 132,004 | $658,699 | $494,355 | -$164,344 | -24.95% | |
| Kingsview Wealth Management, Llc | 0.01% | 123,000 | $613,770 | $460,635 | -$153,135 | -24.95% | |
| Bank Of America Corp | 0.00% | 115,845 | $578,066 | $433,840 | -$144,226 | -24.95% | |
| Bridgeway Capital Management, Llc | 0.01% | 108,149 | $539,664 | $405,018 | -$134,646 | -24.95% | |
| Envestnet Asset Management Inc | 0.00% | 105,809 | $527,987 | $396,255 | -$131,732 | -24.95% | |
| Goldman Sachs Group Inc | 0.00% | 96,220 | $480,138 | $360,344 | -$119,794 | -24.95% | |
| Fisher Asset Management, Llc | 0.00% | 88,333 | $440,781 | $330,807 | -$109,974 | -24.95% | |
| Corient Private Wealth Llc | 0.00% | 77,090 | $384,679 | $288,702 | -$95,977 | -24.95% | |
| Ameriprise Financial Inc | 0.00% | 71,454 | $356,555 | $267,595 | -$88,960 | -24.95% | |
| Susquehanna International Group, Llp | 0.00% | 69,053 | $344,574 | $258,603 | -$85,971 | -24.95% | |
| Rhumbline Advisers | 0.00% | 65,914 | $328,903 | $246,848 | -$82,055 | -24.95% | |
| Alps Advisors Inc | 0.00% | 65,658 | $327,633 | $245,889 | -$81,744 | -24.95% | |
| Td Asset Management Inc | 0.00% | 65,196 | $325,328 | $244,159 | -$81,169 | -24.95% | |
| Xtx Topco Ltd | 0.00% | 64,395 | $321,331 | $241,159 | -$80,172 | -24.95% | |
| Manufacturers Life Insurance Company, The | 0.00% | 62,141 | $310,084 | $232,718 | -$77,366 | -24.95% | |
| Clearstead Advisors, Llc | 0.00% | 60,865 | $303,716 | $227,939 | -$75,777 | -24.95% | |
| American Century Companies Inc | 0.00% | 59,558 | $297,194 | $223,045 | -$74,149 | -24.95% | |
| Squarepoint Ops Llc | 0.00% | 57,689 | $287,868 | $216,045 | -$71,823 | -24.95% | |
| Alliancebernstein L.P. | 0.00% | 52,730 | $277,887 | $197,474 | -$80,413 | -28.94% | |
| Brandywine Managers, Llc | 0.14% | 55,066 | $274,779 | $206,222 | -$68,557 | -24.95% | |
| Wealth Effects Llc | 0.07% | 65,300 | $267,404 | $244,549 | -$22,856 | -8.55% | |
| Deutsche Bank Ag\ | 0.00% | 52,306 | $261,007 | $195,886 | -$65,121 | -24.95% |
Frequently asked questions about IMRX
Who are the largest institutional holders of IMRX?
The largest institutional holders of IMRX reported in the latest SEC Form 13F filings include Fmr Llc, Blackrock, Inc., Sanofi, Vanguard Capital Management Llc, and Price T Rowe Associates Inc. InsiderSet ranks institutional holders by their latest reported IMRX position.
What is IMRX institutional ownership?
This page tracks IMRX positions reported by institutional investment managers through SEC Form 13F. IMMUNEERING CORP - CLASS A (IMRX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own IMRX?
InsiderSet currently tracks 116 institutional managers reporting IMRX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of IMRX shareholders.
How much IMRX stock do institutions own?
Institutional investment managers disclosed approximately $169.59M in IMRX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was IMRX institutional ownership last updated?
The latest IMRX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional IMRX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its IMRX position after the reporting date.
Are institutions buying or selling IMRX?
Institutional buying and selling can be analyzed by comparing IMRX positions across consecutive 13F reporting periods. InsiderSet's IMRX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View IMRX ownership changes.
How has IMRX institutional ownership changed over time?
InsiderSet tracks IMRX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.