Hall Brett Matthew
Officer · IMRX
As of 2026-09-16, Hall Brett Matthew has 7 Form 4 transactions on record across 1 company — 3 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market purchases filed in June in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $1.7M
- Indirect $0
| IMRX | direct | 382,531 sh | $1.7M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-15 | IMRX | Purchase | 6,035 @ $4.15 | $25K | +1.6% of holding | 382,531 | Form 4 |
| 2026-01-15 | IMRX | Purchase | 2,298 @ $4.57 | $11K | +0.6% of holding | 376,496 | Form 4 |
| 2025-06-23 | IMRX | Purchase | 6,007 @ $2.43 | $15K | +1.7% of holding | 359,318 | Form 4 |
| 2025-06-20 | IMRX | Purchase | 7,415 @ $2.70 | $20K | +2.1% of holding | 353,311 | Form 4 |
3 award / exercise / gift records — not counted as purchases
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.