Hall Brett Matthew 4

What Happened

• Brett Matthew Hall, Chief Scientific Officer of Immuneering Corp (IMRX), purchased 6,035 shares on 2026-06-15. The reported weighted-average price was $4.15 per share for a total cost of $25,045. Transaction code: P (purchase). This was a buy (acquisition) rather than a sale.

Key Details

• Transaction date: 2026-06-15; filing date: 2026-06-16 (timely).
• Reported price: weighted average $4.15; actual trades ranged from $4.146 to $4.15 (see footnote).
• Total shares acquired: 6,035; total value ≈ $25,045.
• Shares owned after the transaction: not specified in the provided filing excerpt.
• Notable footnote: the purchase was executed in multiple trades through a broker-dealer at prices between $4.146 and $4.15; the filer will provide a full per-trade breakdown to SEC staff on request.
• No 10b5-1 plan, option exercise, gift, or tax-withholding indication in this filing excerpt.

Context

• Insider purchases are often watched by investors as a potential positive signal, but this was a relatively small, routine open-market buy (~$25k), so interpret size accordingly. The filing appears timely (filed the next day), and there is no indication here of derivative activity or immediate resale.