Anaptysbio's three largest insider shareholders as of August 29, 2026 are Capital, Llc Ecor1 (Director, 7.88Mn shares), Capital, Llc Ecor1 (TenPercentOwner, 7.79Mn shares), Hamza Suria (President, Ceo, 68.60K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Capital, Llc Ecor1 | Director, TenPercentOwner | 0 | 7,880,094 | 7,880,094 | 97.8% | 02 Jan, 2025 |
| 2 | Hamza Suria | President, Ceo | 68,600 | 0 | 68,600 | 0.9% | 22 Dec, 2021 |
| 3 | Paul F. Lizzul | Chief Medical Officer | 42,088 | 0 | 42,088 | 0.5% | 09 Jan, 2026 |
| 4 | John A Orwin | Director | 16,695 | 0 | 16,695 | 0.2% | 17 Jun, 2026 |
| 5 | Eric J Loumeau | Chief Legal Officer | 12,835 | 0 | 12,835 | 0.2% | 13 Feb, 2026 |
| 6 | Hollings Renton | Director | 10,995 | 0 | 10,995 | 0.1% | 17 Jun, 2026 |
| 7 | Magda Marquet | Director | 9,930 | 0 | 9,930 | 0.1% | 16 Jan, 2026 |
| 8 | J. Anthony Ware | Director | 9,630 | 0 | 9,630 | 0.1% | 23 Dec, 2025 |
| 9 | Dennis M Fenton | Director | 4,965 | 0 | 4,965 | 0.1% | 20 Jun, 2025 |
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 |
|---|---|---|---|---|---|---|---|---|
| 15 Jun, 2026 | Hollings Renton | Director | Acquired M | 6,030 | $0.00 | $0 | 10,995 | Direct |
| 15 Jun, 2026 | John A Orwin | Director | Acquired M | 6,030 | $0.00 | $0 | 16,695 | Direct |
| 15 Jun, 2026 | John A Orwin | Director | Disposed M | 6,030 | $0.00 | $0 | 0 | Direct |
| 15 Jun, 2026 | Hollings Renton | Director | Disposed M | 6,030 | $0.00 | $0 | 0 | Direct |
| 11 May, 2026 | Christopher M. Murphy | Chief Financial Officer | Acquired A | 25,765 | $0.00 | $0 | 25,765 | Direct |
| 11 May, 2026 | Owen Hughes | Director | Acquired A | 11,250 | $0.00 | $0 | 11,250 | Direct |
| 20 Apr, 2026 | Daniel Faga | President, Ceo | Disposed D | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 20 Apr, 2026 | Hollings Renton | Director | Disposed D | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 20 Apr, 2026 | Daniel Faga | President, Ceo | Disposed D | 11,000 | $0.00 | $0 | 16,510 | Direct |
| 20 Apr, 2026 | John A Orwin | Director | Disposed D | 3,311 | $0.00 | $0 | 3,311 | Direct |
| 20 Apr, 2026 | John P. Schmid | Director | Disposed D | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 20 Apr, 2026 | Hollings Renton | Director | Acquired A | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 20 Apr, 2026 | John A Orwin | Director | Acquired A | 3,311 | $0.00 | $0 | 3,311 | Direct |
| 20 Apr, 2026 | Daniel Faga | President, Ceo | Acquired A | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 20 Apr, 2026 | John P. Schmid | Director | Acquired A | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 20 Apr, 2026 | Hollings Renton | Director | Disposed D | 6,000 | $0.00 | $0 | 6,000 | Direct |
| 20 Apr, 2026 | John P. Schmid | Director | Disposed D | 6,000 | $0.00 | $0 | 6,000 | Direct |
| 20 Apr, 2026 | John A Orwin | Director | Disposed D | 10,600 | $0.00 | $0 | 10,600 | Direct |
| 20 Apr, 2026 | Daniel Faga | President, Ceo | Disposed D | 2,321 | $0.00 | $0 | 2,321 | Direct |
| 20 Apr, 2026 | Hollings Renton | Director | Acquired A | 6,000 | $0.00 | $0 | 6,000 | Direct |