ArriVent BioPharma's three largest insider shareholders as of August 29, 2026 are Investment Management, Ltd. Hillhouse (TenPercentOwner, 3.93Mn shares), Investment Management, Ltd. Hillhouse (TenPercentOwner, 3.93Mn shares), Robin Lachapelle (Chief Operating Officer, 135.74K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Investment Management, Ltd. Hillhouse | TenPercentOwner | 0 | 3,929,117 | 3,929,117 | 96.7% | 03 Feb, 2026 |
| 2 | Robin Lachapelle | Chief Operating Officer | 135,736 | 0 | 135,736 | 3.3% | 15 Jul, 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Jun, 2026 | Kristine Peterson | Director | Acquired A | 13,562 | $0.00 | $0 | 13,562 | Direct |
| 18 Jun, 2026 | Merdad Parsey | Director | Acquired A | 13,562 | $0.00 | $0 | 13,562 | Direct |
| 18 Jun, 2026 | Chris Nolet | Director | Acquired A | 13,562 | $0.00 | $0 | 13,562 | Direct |
| 18 Jun, 2026 | John Hohneker | Director | Acquired A | 13,562 | $0.00 | $0 | 13,562 | Direct |
| 02 Feb, 2026 | Stuart Lutzker | President Of Rd | Acquired A | 150,000 | $0.00 | $0 | 150,000 | Direct |
| 02 Feb, 2026 | Robin Lachapelle | Chief Operating Officer | Acquired A | 130,000 | $0.00 | $0 | 130,000 | Direct |
| 02 Feb, 2026 | Stuart Lutzker | President Of Rd | Acquired A | 150,000 | $0.00 | $0 | 150,000 | Direct |
| 02 Feb, 2026 | James Paul Kastenmayer | General Counsel | Acquired A | 130,000 | $0.00 | $0 | 130,000 | Direct |
| 02 Feb, 2026 | Stuart Lutzker | President Of Rd | Acquired A | 150,000 | $0.00 | $0 | 150,000 | Direct |
| 02 Feb, 2026 | Robin Lachapelle | Chief Operating Officer | Acquired A | 130,000 | $0.00 | $0 | 130,000 | Direct |
| 02 Feb, 2026 | Robin Lachapelle | Chief Operating Officer | Acquired A | 130,000 | $0.00 | $0 | 130,000 | Direct |
| 02 Feb, 2026 | Stuart Lutzker | President Of Rd | Acquired A | 150,000 | $0.00 | $0 | 150,000 | Direct |
| 02 Feb, 2026 | Zhengbin Yao | President And Ceo | Acquired A | 550,000 | $0.00 | $0 | 550,000 | Direct |
| 02 Feb, 2026 | Robin Lachapelle | Chief Operating Officer | Acquired A | 130,000 | $0.00 | $0 | 130,000 | Direct |
| 10 Dec, 2025 | Investment Management, Ltd. Hillhouse | TenPercentOwner | Disposed S | 555,555 | $23.37 | $12.98Mn | 3,929,117 | Indirect |
| 10 Dec, 2025 | Investment Management, Ltd. Hillhouse | TenPercentOwner | Disposed S | 555,555 | $23.37 | $12.98Mn | 3,929,117 | Indirect |
| 10 Dec, 2025 | Investment Management, Ltd. Hillhouse | TenPercentOwner | Disposed S | 555,555 | $23.37 | $12.98Mn | 3,929,117 | Indirect |
| 10 Dec, 2025 | Investment Management, Ltd. Hillhouse | TenPercentOwner | Disposed S | 555,555 | $23.37 | $12.98Mn | 3,929,117 | Indirect |
| 11 Jul, 2025 | Robin Lachapelle | Chief Operating Officer | Acquired M | 2,050 | $2.28 | $4.67K | 126,633 | Direct |
| 11 Jul, 2025 | Robin Lachapelle | Chief Operating Officer | Acquired M | 2,050 | $2.28 | $4.67K | 126,633 | Direct |