As of September 29, 2026, Acrivon Therapeutics's top three insider holders are Ltd Chione (TenPercentOwner, 3.85Mn shares), Advisors Llc Perceptive (TenPercentOwner, 3.10Mn shares), Kristina Masson (Evp Business Operations, 2.37Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Ltd Chione | TenPercentOwner | 3,848,632 | 0 | 3,848,632 | 35.3% | 28 Jun, 2023 |
| 2 | Advisors Llc Perceptive | TenPercentOwner | 0 | 3,104,139 | 3,104,139 | 28.4% | 01 May, 2025 |
| 3 | Peter Blume-Jensen | President And Ceo | 2,230,052 | 0 | 2,230,052 | 20.4% | 27 Aug, 2026 |
| 4 | Biomedical Innovation Master Investors (Cayman) I L.P. Wellington | TenPercentOwner | 888,130 | 0 | 888,130 | 8.1% | 21 Nov, 2022 |
| 5 | Kristina Masson | Evp Business Operations | 317,246 | 0 | 317,246 | 2.9% | 16 Aug, 2024 |
| 6 | Eric Devroe | Chief Operating Officer | 146,349 | 0 | 146,349 | 1.3% | 20 Aug, 2026 |
| 7 | Mary Miller | Chief Legal Officer | 82,009 | 0 | 82,009 | 0.8% | 20 Aug, 2026 |
| 8 | Adam D. Levy | Chief Financial Officer | 66,008 | 0 | 66,008 | 0.6% | 06 Aug, 2026 |
| 9 | Erick Gamelin | Chief Development Officer | 52,592 | 0 | 52,592 | 0.5% | 20 Aug, 2026 |
| 10 | Mansoor Raza Mirza | Chief Medical Officer | 38,817 | 0 | 38,817 | 0.4% | 20 May, 2026 |
| 11 | Michaela Levin | Chief Business Officer | 30,000 | 0 | 30,000 | 0.3% | 02 Sep, 2026 |
| 12 | Rasmus Holm-Jorgensen | Chief Financial Officer | 26,088 | 0 | 26,088 | 0.2% | 19 Feb, 2025 |
| 13 | Katharine Peterson | Chief Accounting Officer | 18,033 | 0 | 18,033 | 0.2% | 20 Aug, 2026 |
| 14 | Santhosh Palani | Director | 9,366 | 0 | 9,366 | 0.1% | 20 May, 2026 |
| 15 | Capital Management, L.P. Ra | Director, TenPercentOwner | 0 | 9,366 | 9,366 | 0.1% | 20 May, 2026 |
| 16 | Derek Dirocco | Director | 9,366 | 0 | 9,366 | 0.1% | 20 May, 2026 |
| 17 | Charles M Baum | Director | 9,366 | 0 | 9,366 | 0.1% | 20 May, 2026 |
| 18 | Michael John Tomsicek | Director | 9,366 | 0 | 9,366 | 0.1% | 20 May, 2026 |
| 19 | Sharon Shacham | Director | 9,366 | 0 | 9,366 | 0.1% | 20 May, 2026 |
| 20 | Ivana Magovcevic-Liebisch | Director | 9,366 | 0 | 9,366 | 0.1% | 20 May, 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 |
|---|---|---|---|---|---|---|---|---|
| 31 Aug, 2026 | Michaela Levin | Chief Business Officer | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 31 Aug, 2026 | Michaela Levin | Chief Business Officer | Acquired A | 130,000 | $0.00 | $0 | 130,000 | Direct |
| 25 Aug, 2026 | Peter Blume-Jensen | President And Ceo | Disposed S | 14,036 | $2.21 | $30.97K | 2,230,052 | Direct |
| 18 Aug, 2026 | Katharine Peterson | Chief Accounting Officer | Disposed S | 101 | $2.01 | $203 | 18,033 | Direct |
| 18 Aug, 2026 | Eric Devroe | Chief Operating Officer | Disposed S | 604 | $2.01 | $1.21K | 146,349 | Direct |
| 18 Aug, 2026 | Peter Blume-Jensen | President And Ceo | Disposed S | 1,229 | $2.01 | $2.47K | 2,244,088 | Direct |
| 18 Aug, 2026 | Erick Gamelin | Chief Development Officer | Disposed S | 400 | $2.01 | $804 | 52,592 | Direct |
| 18 Aug, 2026 | Mary Miller | Chief Legal Officer | Disposed S | 185 | $2.01 | $372 | 82,009 | Direct |
| 18 Aug, 2026 | Peter Blume-Jensen | President And Ceo | Disposed S | 484 | $2.01 | $973 | 385,859 | Indirect |
| 04 Aug, 2026 | Adam D. Levy | Chief Financial Officer | Disposed S | 1,142 | $1.57 | $1.79K | 66,008 | Direct |
| 21 Jul, 2026 | Mary Miller | Chief Legal Officer | Disposed S | 573 | $1.76 | $1.01K | 82,194 | Direct |
| 17 Jun, 2026 | Charles M Baum | Director | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Direct |
| 17 Jun, 2026 | Capital Management, L.P. Ra | Director, TenPercentOwner | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Indirect |
| 17 Jun, 2026 | Sharon Shacham | Director | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Direct |
| 17 Jun, 2026 | Ivana Magovcevic-Liebisch | Director | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Direct |
| 17 Jun, 2026 | Derek Dirocco | Director | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Direct |
| 17 Jun, 2026 | Michael John Tomsicek | Director | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Direct |
| 17 Jun, 2026 | Santhosh Palani | Director | Acquired A | 20,275 | $0.00 | $0 | 20,275 | Direct |
| 21 May, 2026 | Peter Blume-Jensen | President And Ceo | Disposed F | 13,729 | $1.79 | $24.57K | 2,245,317 | Direct |
| 18 May, 2026 | Capital Management, L.P. Ra | Director, TenPercentOwner | Acquired A | 9,366 | $0.00 | $0 | 9,366 | Indirect |