Immuneering Corp (IMRX) Insider Ownership

Historic Insider Ownership Trends

As of June 09, 2026, Immuneering's top three insider holders are Asset Management, Lp Cormorant (TenPercentOwner, 2.90Mn shares), Benjamin J. Zeskind (President And Ceo, 2.31Mn shares), Asset Management, Lp Cormorant (Other, 2.25Mn 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
Robert J Carpenter - 1,148,839 0 04 Aug, 2021
Ann E Berman - 67,465 0 19 Mar, 2024
Thomas J. Schall - 74,530 0 20 Jan, 2026
Diana Hausman - 2,500 3,000 07 Jul, 2025
Asset Management, Lp Cormorant - 0 2,895,273 03 Apr, 2024
Laurie Keating - 14,000 0 17 May, 2022
Michael Bookman Chief Legal Officer, Secretary 4,870 0 02 Oct, 2025
Scott Barrett Chief Medical Officer 7,563 0 22 Mar, 2022
Benjamin J. Zeskind President And Ceo 2,312,852 0 03 Jul, 2025
Peter Feinberg - 0 507,683 15 Sep, 2021
Biren Amin Cfo, Treasurer 7,898 0 12 May, 2022
Brett Matthew Hall Chief Scientific Officer 376,496 0 16 Jan, 2026
Mallory Morales Chief Accounting Officer 27,533 0 02 Oct, 2025
Leah R Neufeld Chief People Officer 29,598 0 17 Mar, 2026
Harold Eugene Brakewood Chief Business Officer 11,050 0 21 Jan, 2026

* 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
13 Mar, 2026 Leah R Neufeld Class A Common Stock A 3,628 $4.29 29,598 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
03 Feb, 2026 Benjamin J. Zeskind Stock Option A 688,000 $0.00 688,000 D A
03 Feb, 2026 Leah R Neufeld Stock Option A 140,000 $0.00 140,000 D A
03 Feb, 2026 Harold Eugene Brakewood 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 Brett Matthew Hall Stock Option A 344,000 $0.00 344,000 D A
03 Feb, 2026 Michael Bookman Stock Option A 176,000 $0.00 176,000 D A
03 Feb, 2026 Igor Matushansky Stock Option A 140,000 $0.00 140,000 D A
03 Feb, 2026 Igor Matushansky Stock Option A 140,000 $0.00 140,000 D A
16 Jan, 2026 Harold Eugene Brakewood Class A Common Stock A 5,250 $4.76 11,050 D P
15 Jan, 2026 Thomas J. Schall Class A Common Stock A 21,645 $4.67 74,530 D P
15 Jan, 2026 Thomas J. Schall Class A Common Stock A 21,645 $4.67 74,530 D P
15 Jan, 2026 Brett Matthew Hall Class A Common Stock A 2,298 $4.57 376,496 D P
13 Jan, 2026 Leah R Neufeld Class A Common Stock A 2,626 $4.15 25,970 D P
13 Jan, 2026 Leah R Neufeld Class A Common Stock A 2,626 $4.15 25,970 D P
12 Jan, 2026 Peter Feinberg Class A Common Stock A 20,000 $4.35 135,441 I P