Instil Bio's three largest insider shareholders as of September 29, 2026 are R Kent Jr Mcgaughy (Director, 410.92K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | R Kent Jr Mcgaughy | Director | 0 | 410,923 | 410,923 | 100.0% | 17 Mar, 2022 |
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 |
|---|---|---|---|---|---|---|---|---|
| 11 Jun, 2026 | Gwendolyn Binder | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 11 Jun, 2026 | R Kent Jr Mcgaughy | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 11 Jun, 2026 | George Matcham | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 10 Sep, 2025 | Sandeep Laumas | Cfo And Cbo | Acquired M | 17,000 | $11.60 | $197.20K | 17,000 | Direct |
| 10 Sep, 2025 | Sandeep Laumas | Cfo And Cbo | Acquired M | 13,000 | $12.68 | $164.84K | 30,000 | Direct |
| 10 Sep, 2025 | Sandeep Laumas | Cfo And Cbo | Disposed S | 17,539 | $23.04 | $404.10K | 12,461 | Direct |
| 10 Sep, 2025 | Sandeep Laumas | Cfo And Cbo | Disposed S | 12,461 | $23.88 | $297.57K | 0 | Direct |
| 10 Sep, 2025 | Sandeep Laumas | Cfo And Cbo | Disposed M | 17,000 | $0.00 | $0 | 17,000 | Direct |
| 10 Sep, 2025 | Sandeep Laumas | Cfo And Cbo | Disposed M | 13,000 | $0.00 | $0 | 30,000 | Direct |
| 28 May, 2025 | Neil W Gibson | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 28 May, 2025 | Gwendolyn Binder | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 28 May, 2025 | R Kent Jr Mcgaughy | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 28 May, 2025 | George Matcham | Director | Acquired A | 6,500 | $0.00 | $0 | 6,500 | Direct |
| 25 Apr, 2025 | Bronson Crouch | Ceo And Chairman | Acquired A | 105,157 | $0.00 | $0 | 105,157 | Direct |
| 25 Apr, 2025 | Sandeep Laumas | Cfo And Cbo | Acquired A | 44,851 | $0.00 | $0 | 44,851 | Direct |
| 18 Sep, 2024 | Bronson Crouch | Ceo And Chairman | Acquired A | 50,000 | $0.00 | $0 | 50,000 | Direct |
| 18 Sep, 2024 | Sandeep Laumas | Cfo And Cbo | Acquired A | 45,000 | $0.00 | $0 | 45,000 | Direct |
| 13 Jun, 2024 | R Kent Jr Mcgaughy | Director | Acquired A | 5,000 | $0.00 | $0 | 5,000 | Direct |
| 13 Jun, 2024 | George Matcham | Director | Acquired A | 5,000 | $0.00 | $0 | 5,000 | Direct |
| 13 Jun, 2024 | Neil W Gibson | Director | Acquired A | 5,000 | $0.00 | $0 | 5,000 | Direct |