Hall Brett Matthew
SEC insider (Form 3/4/5 filer). CIK 0001870437. CHIEF SCIENTIFIC OFFICER at Immuneering Corp (IMRX). 7 reported Form 4/5 transactions since Sep 2024; latest on Jun 15, 2026. Located in CAMBRIDGE, MA.
Companies Hall Brett Matthew has filed insider reports for
- Immuneering Corp (IMRX): Officer, CHIEF SCIENTIFIC OFFICER
Hall Brett Matthew
CIK: 0001870437
Transaction Breakdown
Open Market Buys (P)4 (57.1%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)3 (42.9%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
IMRX
Immuneering Corp
Officer
Discretionary Trading P&L
Holdings
Transaction History (7 total)
- Jun 15, 2026IMRX
Immuneering Corp
PurchaseDirect6K shares at avg. $4.15$25K - Feb 3, 2026IMRX
Immuneering Corp
AwardDirectStock Option
344K shares- - Jan 15, 2026IMRX
Immuneering Corp
PurchaseDirect2.3K shares at avg. $4.57$11K - Sep 15, 2025IMRX
Immuneering Corp
AwardDirect14.9K shares at avg. $1.43$21K - Jun 23, 2025IMRX
Immuneering Corp
PurchaseDirect6K shares at avg. $2.43$15K - Jun 20, 2025IMRX
Immuneering Corp
PurchaseDirect7.4K shares at avg. $2.70$20K - Feb 5, 2025IMRX
Immuneering Corp
AwardDirectStock Option
240K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 15, 2026 | IMRX Immuneering Corp | Purchase | 6,035 | $4.15 | $25,045 | Direct |
| Feb 3, 2026 | IMRX Immuneering Corp | Award Stock Option | 344,000 | - | - | Direct |
| Jan 15, 2026 | IMRX Immuneering Corp | Purchase | 2,298 | $4.57 | $10,502 | Direct |
| Sep 15, 2025 | IMRX Immuneering Corp | Award | 14,880 | $1.43 | $21,249 | Direct |
| Jun 23, 2025 | IMRX Immuneering Corp | Purchase | 6,007 | $2.43 | $14,596 | Direct |
| Jun 20, 2025 | IMRX Immuneering Corp | Purchase | 7,415 | $2.70 | $20,020 | Direct |
| Feb 5, 2025 | IMRX Immuneering Corp | Award Stock Option | 240,000 | - | - | Direct |
1-7 of 7 transactions