Company · Ownership research

Immuneering Corp IMRX

CIK 0001790340 · CUSIP 45254E107

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 45254E107 (IMRX), not CUSIP 45254E907 (IMRX), CUSIP 45254E957 (IMRX), and does not merge CUSIPs.

This page lists the top 20 of 95 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	FMR LLC CIK 315066 · View history	$51.11M 9,697,938 shares	0.00%	+12.44K(+0.10%)Added	SEC filing ↗ May 15, 2026	▾
02	Sanofi CIK 1121404 · View history	$14.27M 2,708,559 shares	4.25%	0(0.00%)Unchanged	SEC filing ↗ May 7, 2026	▾
03	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$12.06M 2,288,341 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
04	MARSHALL WACE, LLP CIK 1318757 · View history	$10.52M 1,996,585 shares	0.01%	+1.28M(+180.50%)Added	SEC filing ↗ May 15, 2026	▾
05	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$9.64M 1,829,188 shares	0.00%	-164.77K(-8.30%)Reduced	SEC filing ↗ May 15, 2026	▾
06	BlackRock, Inc. CIK 2012383 · View history	$7.94M 1,507,258 shares	0.00%	+55.55K(+3.80%)Added	SEC filing ↗ May 13, 2026	▾
07	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$5.81M 1,102,712 shares	0.00%	+1.05M(+2,065.40%)Added	SEC filing ↗ May 15, 2026	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$3.36M 637,944 shares	0.00%	+19.87K(+3.20%)Added	SEC filing ↗ May 15, 2026	▾
09	Occam Crest Management LP CIK 2085909 · View history	$2.87M 545,098 shares	1.79%	+46.60K(+9.30%)Added	SEC filing ↗ May 15, 2026	▾
10	CITADEL ADVISORS LLC CIK 1423053 · View history	$2.36M 447,278 shares	0.00%	+356.82K(+394.50%)Added	SEC filing ↗ May 15, 2026	▾
11	Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history	$2.11M 400,363 shares	0.00%	+267.68K(+201.80%)Added	SEC filing ↗ May 11, 2026	▾
12	Summit Financial, LLC CIK 1765536 · View history	$1.99M 376,749 shares	0.03%	+376.75KNew	SEC filing ↗ May 15, 2026	▾
13	UBS Group AG CIK 1610520 · View history	$1.98M 376,284 shares	0.00%	+185.95K(+97.70%)Added	SEC filing ↗ May 5, 2026	▾
14	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$1.73M 327,655 shares	0.00%	+8.85K(+2.80%)Added	SEC filing ↗ May 15, 2026	▾
15	VANGUARD FIDUCIARY TRUST CO CIK 933478 · Amended · View history	$1.70M 322,038 shares	0.00%	—	SEC filing ↗ May 8, 2026	▾
16	Burkehill Global Management, LP CIK 1904549 · View history	$1.58M 300,000 shares	0.08%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
17	MORGAN STANLEY CIK 895421 · View history	$1.56M 296,067 shares	0.00%	-193.55K(-39.50%)Reduced	SEC filing ↗ May 15, 2026	▾
18	STATE STREET CORP CIK 93751 · View history	$1.42M 268,520 shares	0.00%	-2.13M(-88.80%)Reduced	SEC filing ↗ May 15, 2026	▾
19	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$1.29M 244,771 shares	0.00%	+37.62K(+18.20%)Added	SEC filing ↗ May 15, 2026	▾
20	Squarepoint Ops LLC CIK 1642575 · View history	$1.19M 226,046 shares	0.00%	+133.79K(+145.00%)Added	SEC filing ↗ May 15, 2026	▾

Showing 20 / 95 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

29,305,893

Not deduplicated across managers

Disclosed value

$154.28M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Immuneering Corp · Q1 2026

Explore all 95 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.