Immuneering Corp (IMRX) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of IMRX are Asset Management, Lp Cormorant (TenPercentOwner, 2.90Mn shares), Benjamin J. Zeskind (President And Ceo, 2.31Mn shares), Brett Matthew Hall (Chief Scientific Officer, 376.50K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Benjamin J. Zeskind President And Ceo 2,312,852 0 03 Jul, 2025
Thomas J. Schall 74,530 0 20 Jan, 2026
Leah R Neufeld Chief People Officer 29,598 0 17 Mar, 2026
Mallory Morales Chief Accounting Officer 27,533 0 02 Oct, 2025
Laurie Keating 14,000 0 17 May, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
13 Mar, 2026 Leah R Neufeld Class A Common Stock A 3,628 $4.29 29,598 D A
03 Feb, 2026 Igor Matushansky Stock Option A 140,000 $0.00 140,000 D A
03 Feb, 2026 Leah R Neufeld Stock Option A 140,000 $0.00 140,000 D A
03 Feb, 2026 Mallory Morales Stock Option A 140,000 $0.00 140,000 D A
03 Feb, 2026 Benjamin J. Zeskind Stock Option A 688,000 $0.00 688,000 D A
15 Jan, 2026 Thomas J. Schall Class A Common Stock A 21,645 $4.67 74,530 D P
13 Jan, 2026 Leah R Neufeld Class A Common Stock A 2,626 $4.15 25,970 D P
01 Jan, 2026 Laurie Keating Stock Option A 7,888 $0.00 7,888 D A
01 Oct, 2025 Leah R Neufeld Class A Common Stock A 800 $6.38 23,344 D P
01 Oct, 2025 Mallory Morales Class A Common Stock A 300 $6.39 27,533 D P
15 Sep, 2025 Leah R Neufeld Class A Common Stock A 11,815 $1.43 22,544 D A
15 Sep, 2025 Mallory Morales Class A Common Stock A 14,497 $1.43 27,233 D A
02 Jul, 2025 Leah R Neufeld Class A Common Stock A 700 $3.57 10,729 D P
01 Jul, 2025 Benjamin J. Zeskind Class A Common Stock A 2,985 $3.38 2,305,837 D P
02 Jul, 2025 Benjamin J. Zeskind Class A Common Stock A 7,015 $3.53 2,312,852 D P
27 Jun, 2025 Thomas J. Schall Class A Common Stock A 9,500 $3.66 52,885 D P
18 Jun, 2025 Benjamin J. Zeskind Class A Common Stock A 21,000 $2.39 2,302,852 D P
17 Jun, 2025 Thomas J. Schall Class A Common Stock A 40,485 $2.21 43,385 D P
13 Jun, 2025 Laurie Keating Stock Option A 33,350 $0.00 33,350 D A
13 Jun, 2025 Thomas J. Schall Stock Option A 33,350 $0.00 33,350 D A