Immatics's three largest insider shareholders as of September 29, 2026 are Advisors Llc Perceptive (Director, 11.25Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Advisors Llc Perceptive | Director | 0 | 11,246,516 | 11,246,516 | 100.0% | 27 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 26 Aug, 2026 | Advisors Llc Perceptive | Director | Acquired P | 863,060 | $8.69 | $7.50Mn | 11,246,516 | Indirect |
| 14 Aug, 2026 | James Nelson Pepin | Gen Counsel And Corp Secretary | Acquired A | 181,200 | $0.00 | $0 | 181,200 | Direct |
| 14 Aug, 2026 | James Nelson Pepin | Gen Counsel And Corp Secretary | Acquired A | 43,800 | $0.00 | $0 | 43,800 | Direct |
| 16 Jun, 2026 | Michael G Atieh | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Paul Rutherford Carter | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Adam Leo Stone | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Alise Reicin | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Eliot Forster | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Peter Alan Chambre | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Advisors Llc Perceptive | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Indirect |
| 16 Jun, 2026 | Heather L Mason | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |
| 16 Jun, 2026 | Mathias Hothum | Director | Acquired A | 48,000 | $0.00 | $0 | 48,000 | Direct |