Immuneering Corporation

IMRX • NASDAQ

Immuneering Corporation is a biotechnology company in the healthcare sector on NASDAQ, led by Benjamin Zeskind, Ph.D., with a market cap of $392.6M. As of Q3 2025, 40% of shares are held by 67 institutional investors, with FMR LLC as the largest holder at 13.9%.

CEOBenjamin Zeskind, Ph.D.

Market Cap$392.6M

Biotechnology

Healthcare

Employees65.0

Websiteimmuneering.com

Country

United States of America

Overview

Overview of institutional ownership in IMRX as of Q3 2025 with a market cap of $442.7M

All Institutions

Institutions: 67
Value Held: $178.8M
Shares Held: 25.5M
Avg Position: $2.7M
Median Position: $448.3K

Hedge Funds

Hedge Funds: 16
Value Held: $38.3M
Shares Held: 5.5M
Avg Position: $2.4M
Median Position: $1.4M

Ownership Breakdown

Institutional (non-HF)

31.74%

$140.5M

Hedge Funds

8.65%

$38.3M

Retail & Other

59.61%

$263.9M

Based on market cap of $442.7M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in IMRX as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
FMR LLC Institution	-	$61.5M 0.00% of portfolio	13.90% 8.8M shares	Q2 2025 Held for 5 months	$1.92T
S Sanofi Institution	-	$19.0M 7.28% of portfolio	4.28% 2.7M shares	Q3 2025 Held for 2 months	$260.4M
VANGUARD GROUP INC Institution	Salim Ramji CEO	$16.9M 0.00% of portfolio	3.82% 2.4M shares	Q3 2021 Held for 4y 2m	$6.69T
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	Robert W Sharps President	$12.6M 0.00% of portfolio	2.84% 1.8M shares	Q3 2021 Held for 4y 2m	$912.31B
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	Michael Robert Gelband CEO	$10.6M 0.15% of portfolio	2.40% 1.5M shares	Q3 2025 Held for 2 months	$7.1B
Logos Global Management LP Hedge Fund•Long/Short	Graham Gordon Walmsley Managing Partner	$6.7M 0.67% of portfolio	1.50% 950.0K shares	Q3 2025 Held for 2 months	$987.5M
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$6.6M 0.01% of portfolio	1.49% 943.1K shares	Q3 2025 Held for 2 months	$122.08B
B BlackRock, Inc. Institution	-	$4.8M 0.00% of portfolio	1.08% 681.2K shares	Q3 2021 Held for 4y 2m	$5.67T
B Blue Owl Capital Holdings LP Institution	-	$3.9M 1.21% of portfolio	0.87% 550.0K shares	Q3 2025 Held for 2 months	$318.8M
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$3.6M 0.00% of portfolio	0.81% 513.7K shares	Q3 2021 Held for 4y 2m	$1.57T

Net Capital Flow

Institutional buying and selling activity for IMRX in Q3 2025

Traded: +$152.1M
Buyers: 55
Sellers: 11
Total Bought: +$154.6M
Total Sold: −$2.5M
Avg Position: $2.5M

Biggest Buyers

Institution	Net Bought	Current Position
FMR LLC Institution	+$60.0M +8.6M shares	$61.5M 8.8M shares
S Sanofi Institution	+$19.0M +2.7M shares	$19.0M 2.7M shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	+$12.6M +1.8M shares	$12.6M 1.8M shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	+$10.6M +1.5M shares	$10.6M 1.5M shares
VANGUARD GROUP INC Institution	+$9.5M +1.4M shares	$16.9M 2.4M shares
Logos Global Management LP Hedge Fund•Long/Short	+$6.7M +950.0K shares	$6.7M 950.0K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$6.6M +943.1K shares	$6.6M 943.1K shares
B Blue Owl Capital Holdings LP Institution	+$3.9M +550.0K shares	$3.9M 550.0K shares
Burkehill Global Management, LP Hedge Fund•Event Driven	+$2.1M +300.0K shares	$2.1M 300.0K shares
Monashee Investment Management LLC Hedge Fund•Sector	+$2.1M +300.0K shares	$2.1M 300.0K shares

Biggest Sellers

Institution	Net Sold	Current Position
Marshall Wace LLP Institution	−$2.1M −302.6K shares	$1.9M 271.3K shares
C CI Private Wealth, LLC RIA/Wealth	−$193.6K −27.7K shares	$252.6K 36.1K shares
C Cubist Systematic Strategies, LLC Institution	−$99.1K −29.4K shares	Sold Off 0 shares
FIRST MANHATTAN CO Institution	−$56.6K −8.1K shares	$169.7K 24.2K shares
HighTower Advisors, LLC RIA/Wealth	−$24.5K −3.5K shares	$927.2K 132.5K shares
Flower City Capital RIA/Wealth	−$19.6K −2.8K shares	$204.6K 29.2K shares
T Tower Research Capital LLC Institution	−$10.1K −3.0K shares	Sold Off 0 shares
JPMORGAN CHASE & CO Institution	−$3.3K −474.0 shares	$10.5K 1.5K shares
S SBI Securities Co., Ltd. Institution	−$249.0 −74.0 shares	Sold Off 0 shares
B BNP PARIBAS ARBITRAGE, SA Institution	−$175.0 −25.0 shares	$1.8K 262.0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited IMRX in Q3 2025

New Positions: 23
New Value: $43.1M
Exited Positions: 4
Exited Value: $109.5K

New Positions

Institution	Position Value
S Sanofi Institution	$19.0M 2.7M shares
Logos Global Management LP Hedge Fund•Long/Short	$6.7M 950.0K shares
B Blue Owl Capital Holdings LP Institution	$3.9M 550.0K shares
Burkehill Global Management, LP Hedge Fund•Event Driven	$2.1M 300.0K shares
Monashee Investment Management LLC Hedge Fund•Sector	$2.1M 300.0K shares
IRIDIAN ASSET MANAGEMENT LLC/CT Hedge Fund•Long/Short	$1.9M 275.1K shares
Diametric Capital, LP Hedge Fund•Long/Short	$1.8M 252.2K shares
A AWM Investment Company, Inc. Hedge Fund•Event Driven	$1.1M 150.0K shares
Woodline Partners LP Hedge Fund•Long/Short	$1.1M 150.0K shares
Hudson Bay Capital Management LP Hedge Fund•Multi-Strategy	$717.1K 102.4K shares

Exited Positions

Institution	Previous Position
C Cubist Systematic Strategies, LLC Institution	$99.1K 29.4K shares
T Tower Research Capital LLC Institution	$10.1K 3.0K shares
S SBI Securities Co., Ltd. Institution	$249.0 74.0 shares
Point72 Ltd RIA/Wealth	$54.0 16.0 shares

Options Activity

Institutions with the largest Call and Put options positions in IMRX as of Q3 2025

Call Positions: 0
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
No call positions found

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

Institutions with IMRX as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
S SOUTHPORT MANAGEMENT, L.L.C. Institution	-	7.87% $1.9M	0.43% 272.5K shares	Q3 2023 Held for 2y 2m	$24.2M
S Sanofi Institution	-	7.28% $19.0M	4.28% 2.7M shares	Q3 2025 Held for 2 months	$260.4M
B Blue Owl Capital Holdings LP Institution	-	1.21% $3.9M	0.87% 550.0K shares	Q3 2025 Held for 2 months	$318.8M
Monashee Investment Management LLC Hedge Fund•Sector	Thomas Joseph Wynn Managing Partner	1.13% $2.1M	0.47% 300.0K shares	Q3 2025 Held for 2 months	$186.0M
IRIDIAN ASSET MANAGEMENT LLC/CT Hedge Fund•Long/Short	Todd Dunkin Raker CEO	0.76% $1.9M	0.43% 275.1K shares	Q3 2025 Held for 2 months	$254.1M
Logos Global Management LP Hedge Fund•Long/Short	Graham Gordon Walmsley Managing Partner	0.67% $6.7M	1.50% 950.0K shares	Q3 2025 Held for 2 months	$987.5M
Diametric Capital, LP Hedge Fund•Long/Short	David Richard Salvietti COO	0.67% $1.8M	0.40% 252.2K shares	Q3 2025 Held for 2 months	$264.8M
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	Michael Robert Gelband CEO	0.15% $10.6M	2.40% 1.5M shares	Q3 2025 Held for 2 months	$7.1B
A Avidity Partners Management LP Hedge Fund•Long/Short	Michael David Gregory President	0.15% $636.3K	0.14% 90.9K shares	Q3 2025 Held for 2 months	$429.1M
Burkehill Global Management, LP Hedge Fund•Event Driven	Christopher Daniel Rich Managing Partner	0.12% $2.1M	0.47% 300.0K shares	Q3 2025 Held for 2 months	$1.7B

Hedge Fund Spotlight

Discover hedge funds investing in IMRX

Avidity Partners Management LP

Hedge Fund • Long/Short

Portfolio ManagerMichael David Gregory

Portfolio Value: $429.1M
Positions: 42
Last Reported: Q3 2025

Sector Allocation

Position in Immuneering Corporation

Market Value: $636.3K
Shares Held: 90.9K
Portfolio Weight: 0.15%
Owned Since: 2025-Q3

Top Holding	Sector	Market Value	Weight
1 Dianthus Therapeutics DNTH	Biotechnology Healthcare	$126.1M	29.38%
2 CG Oncology CGON	Biotechnology Healthcare	$64.5M	15.03%
3 Medtronic MDT	Medical - Devices Healthcare	$18.2M	4.23%