IMRX insider buying and SEC filings, explained
Immuneering Corp · CIK 1790340
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$270K
Insiders who bought
6
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jun 23, 2026 | Purchase (code P) | Benjamin J. Zeskind (CEO and Director) bought 2,400 shares at about $4.56 ($11K), reported as a purchase (code P). Holdings up <1% to 2,315,252 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 24, 2026 |
| Jun 15, 2026 | Purchase (code P) | Brett Matthew Hall (Chief Scientific Officer) bought 6,035 shares at about $4.15 ($25K), reported as a purchase (code P). Holdings up 2% to 382,531 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 16, 2026 |
| Jan 16, 2026 | Purchase (code P) | Harold Eugene Brakewood (Chief Business Officer) bought 5,250 shares at $4.76 ($25K), reported as a purchase (code P). Holdings up 91% to 11,050 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 21, 2026 |
| Jan 15, 2026 | Purchase (code P) | Thomas J. Schall (Director) bought 21,645 shares at about $4.67 ($101K), reported as a purchase (code P). Holdings up 41% to 74,530 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 20, 2026 |
| Jan 15, 2026 | Purchase (code P) | Brett Matthew Hall (Chief Scientific Officer) bought 2,298 shares at about $4.57 ($11K), reported as a purchase (code P). Holdings up 1% to 376,496 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 16, 2026 |
| Jan 13, 2026 | Purchase (code P) | Leah R Neufeld (Chief People Officer) bought 2,626 shares at $4.15 ($11K), reported as a purchase (code P). Holdings up 11% to 25,970 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 15, 2026 |
| Jan 12, 2026 | Purchase (code P) | Peter Feinberg (Director) bought 20,000 shares indirectly (by entity) at about $4.35 ($87K), reported as a purchase (code P). Holdings by entity up 17% to 135,441 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 14, 2026 |
16 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
2 insiders bought in 30 days
$36K in purchases since Jun 15, 2026 · Purchases traded Jun 15, 2026 to Jun 23, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Brett Matthew Hall (Chief Scientific Officer) | $25K | Jun 15, 2026 | SEC filing |
| Benjamin J. Zeskind (CEO) | $11K | Jun 23, 2026 | SEC filing |
5 insiders bought in 30 days
$234K in purchases since Jan 12, 2026 · Purchases traded Jan 12, 2026 to Jan 16, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Peter Feinberg (Director) | $87K | Jan 12, 2026 | SEC filing |
| Leah R Neufeld (Chief People Officer) | $11K | Jan 13, 2026 | SEC filing |
| Brett Matthew Hall (Chief Scientific Officer) | $11K | Jan 15, 2026 | SEC filing |
| Thomas J. Schall (Director) | $101K | Jan 15, 2026 | SEC filing |
| Harold Eugene Brakewood (Chief Business Officer) | $25K | Jan 16, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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