Immuneering IMRX Institutional Ownership

NASDAQ IMRX

$4.84 -0.20 (-3.97%)

As of: Sep 4, 2026 · 10:50 AM EDT

Institutions by Trading Activity

113 Institutions

Increased 77 68.1%

Unchanged 16 14.2%

Reduced 20 17.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

53.51%

▲+12.47 pp QoQ

Shares Held by Institutions

34.62Mn

of 64.70Mn outstanding

▲+36.50% QoQ

Shares Outstanding

64.70Mn

30.08Mn held outside 13F filers

Institutional Investors

113

filed 13F for Jun 2026

▲+22 vs prior quarter

Net Shares Added (QoQ)

+9.26Mn

accumulated since last quarter

Value of Holdings

$174.48Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Immuneering Corp (NASDAQ:IMRX) appears in 113 institutional 13F filings for the quarter ending June 2026.

Collectively, these holders controlled 53.5% of Immuneering's outstanding shares in June 2026, up from 41.0% in March 2026.
They increased total shares held in Immuneering by 36.5% from the prior quarter, while the number of investors in IMRX increased 189.74% year over year.
Among the 113 funds, 77 bought more Immuneering shares, 20 sold down, and 16 held their ground.
The aggregate institutional position in Immuneering amounted to 34.62Mn shares as of June 2026, up by 9.26Mn shares quarter on quarter, and up 30.89Mn shares year over year.
FMR LLC holds the largest position in IMRX at 9.7Mn shares as of June 30, 2026, or 15.0% of shares outstanding.
The biggest buyers of Immuneering for the quarter ending June 2026 included BlackRock, Inc. (2.87Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.29Mn), State Street Corp (733.48K), GEODE CAPITAL MANAGEMENT, LLC (732.81K), DCF Advisers, LLC (648.54K).
The largest sellers of Immuneering for the quarter ending June 2026 were MARSHALL WACE, LLP (1.26Mn), MILLENNIUM MANAGEMENT LLC (772.31K), Occam Crest Management LP (266.6K), Goldman Sachs Group Inc (231.44K), Squarepoint Ops LLC (168.36K).
Per Business Quant data, the top 10 holders of Immuneering for the quarter ending June 2026 are FMR LLC (9.7Mn), BlackRock, Inc. (4.37Mn), Sanofi (2.71Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.29Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.94Mn), GEODE CAPITAL MANAGEMENT, LLC (1.37Mn), State Street Corp (1.0Mn), DCF Advisers, LLC (790.0K), MARSHALL WACE, LLP (731.9K), Connor, Clark & Lunn Investment Management Ltd. (601.26K).

Form 13F Holdings

113 Institutional Holders

Report period 30 Jun, 2026

Total shares held 34.62Mn

Of outstanding 53.51%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	FMR LLC	0000315066	9,704,610	15.00%	▲6,672	+0.07%	$48.43Mn
2	BlackRock, Inc.	0002012383	4,374,020	6.76%	▲2,866,762	+190.20%	$21.83Mn
3	Sanofi	0001121404	2,708,559	4.19%	0	0.00%	$13.52Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,286,434	3.53%	▲2,286,434	0.00%	$11.41Mn
5	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	1,936,076	2.99%	▲106,888	+5.84%	$9.66K
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,370,750	2.12%	▲732,806	+114.87%	$6.84Mn
7	State Street Corp	0000093751	1,001,995	1.55%	▲733,475	+273.15%	$5.00Mn
8	DCF Advisers, LLC	0001802493	790,000	1.22%	▲648,538	+458.45%	$3.94Mn
9	MARSHALL WACE, LLP	0001318757	731,897	1.13%	▼1,264,688	-63.34%	$3.65Mn
10	Connor, Clark & Lunn Investment Management Ltd.	0001596800	601,255	0.93%	▲200,892	+50.18%	$3.00Mn
11	ALETHEA CAPITAL MANAGEMENT, LLC	0001549408	472,935	0.73%	▲450,000	+1,962.07%	$2.36Mn
12	Summit Financial, LLC	0001765536	452,264	0.70%	▲75,515	+20.04%	$2.26Mn
13	UBS Group AG	0001610520	448,857	0.69%	▲72,573	+19.29%	$2.24Mn
14	Nuveen, LLC	0001871926	438,362	0.68%	▲438,362	0.00%	$2.19Mn
15	Northern Trust Corp	0000073124	436,992	0.68%	▲319,326	+271.38%	$2.18Mn
16	LEVIN CAPITAL STRATEGIES, L.P.	0001354821	414,000	0.64%	▲404,000	+4,040.00%	$2.07Mn
17	CITADEL ADVISORS LLC	0001423053	386,411	0.60%	▼60,867	-13.61%	$1.93Mn
18	VANGUARD FIDUCIARY TRUST CO	0000933478	360,764	0.56%	▲360,764	0.00%	$1.80Mn
19	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	359,085	0.56%	▲359,085	0.00%	$1.79Mn
20	GSA CAPITAL PARTNERS LLP	0001362033	343,303	0.53%	▲266,551	+347.29%	$1.71K

Showing 1 to 20 of 113 holders