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Immuneering Corp

IMRX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001790340

No open-market purchases or sales by Immuneering Corp insiders were filed in the last 90 days; 111 institutions reported holding it in 13F filings for Q2 2026, worth $171.6M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Immuneering Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
111
+15 vs. Q1 2026
Shares held
34.4M
+5.13M (+17.5%) vs. Q1 2026
Total value
$171.6M
+$17.3M (+11.2%) vs. Q1 2026
New holders
37
35 more added
Sold out
22
21 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IMRX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 111 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 38 institutionsQ4 2021: 37 institutionsQ1 2022: 50 institutionsQ2 2022: 37 institutionsQ3 2022: 32 institutionsQ4 2022: 34 institutionsQ1 2023: 35 institutionsQ2 2023: 49 institutionsQ3 2023: 52 institutionsQ4 2023: 52 institutionsQ1 2024: 51 institutionsQ2 2024: 59 institutionsQ3 2024: 38 institutionsQ4 2024: 42 institutionsQ1 2025: 35 institutionsQ2 2025: 39 institutionsQ3 2025: 69 institutionsQ4 2025: 85 institutionsQ1 2026: 96 institutionsQ2 2026: 111 institutions
Value heldQ2 2026: $171.6M
Q1 2021: $0Q2 2021: $0Q3 2021: $316.4MQ4 2021: $200.1MQ1 2022: $88.1MQ2 2022: $65.7MQ3 2022: $172.5MQ4 2022: $56.9MQ1 2023: $114.9MQ2 2023: $175.9MQ3 2023: $130.1MQ4 2023: $118.6MQ1 2024: $34.3MQ2 2024: $12.3MQ3 2024: $10.9MQ4 2024: $9.32MQ1 2025: $6.84MQ2 2025: $12.9MQ3 2025: $183.3MQ4 2025: $208.6MQ1 2026: $154.3MQ2 2026: $171.6M
Institutions holding IMRX and their total value by quarter
QuarterHoldersValue
Q2 2026111$171.6M
Q1 202696$154.3M
Q4 202585$208.6M
Q3 202569$183.3M
Q2 202539$12.9M
Q1 202535$6.84M
Q4 202442$9.32M
Q3 202438$10.9M
Q2 202459$12.3M
Q1 202451$34.3M
Q4 202352$118.6M
Q3 202352$130.1M
Q2 202349$175.9M
Q1 202335$114.9M
Q4 202234$56.9M
Q3 202232$172.5M
Q2 202237$65.7M
Q1 202250$88.1M
Q4 202137$200.1M
Q3 202138$316.4M
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Immuneering Corp; share changes are against Q1 2026.

Institutions holding IMRX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
GF Fund Management Co. Ltd.1,341$6.69K0.00%−101−7.0%Reduced
Sterling Capital Management LLC1,081$5.39K0.00%+1,081New
Atlantic Union Bankshares Corp785$3.92K0.00%+785New
California State Teachers Retirement System738$3.68K0.00%+738New
EverSource Wealth Advisors, LLC345$1.72K0.00%00.0%Unchanged
Rothschild Investment LLC250$1.25K0.00%+250New
Private Trust Co NA250$1.25K0.00%+250New
Geneos Wealth Management Inc.200$9980.00%+200New
Quarry LP146$7290.00%+146New
Jones Financial Companies LLLP30$1430.00%00.0%Unchanged
Advisor Group Holdings, Inc.18$900.00%+14+350.0%Added
Diametric Capital, LP0$00.00%−174,897−100.0%Sold out
Wellington Management Group LLP0$00.00%−156,424−100.0%Sold out
683 Capital Management, LLC0$00.00%−150,697−100.0%Sold out
Hudson Bay Capital Management LP0$00.00%−95,889−100.0%Sold out
Weiss Asset Management LP0$00.00%−87,985−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−86,236−100.0%Sold out
Jane Street Group, LLC0$00.00%−77,414−100.0%Sold out
Renaissance Technologies LLC0$00.00%−72,875−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−67,495−100.0%Sold out
HRT Financial LP0$00.00%−42,456−100.0%Sold out
HSBC Holdings PLC0$00.00%−37,771−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−29,219−100.0%Sold out
Omers Administration Corp0$00.00%−22,400−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−20,000−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−15,900−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−14,280−100.0%Sold out
Catalyst Funds Management Pty Ltd0$00.00%−12,800−100.0%Sold out
Atria Investments LLC0$00.00%−10,758−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−9,151−100.0%Sold out
Simplex Trading, LLC0$00.00%−8,942−100.0%Sold out
Natixis0$00.00%−380−100.0%Sold out
Fortitude Family Office, LLC0$00.00%−105−100.0%Sold out