SION Insider Transactions — Page 4
428 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 301–400; provenance stays internal.
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2025-10-28 | Sale | 3,624.0 | $39.58 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2025-10-28 | Sale | 3,624.0 | $39.58 |
| Kolchinsky Peter | Director,TenPercentOwner | 2025-10-28 | Sale | 3,624.0 | $39.58 |
| Shah Rajeev M. | Director,TenPercentOwner | 2025-10-28 | Sale | 3,624.0 | $39.58 |
| RA Capital Nexus Fund, L.P. | Director | 2025-10-28 | Sale | 3,624.0 | $39.58 |
| RA Capital Nexus Fund III, L.P. | Director | 2025-10-28 | Sale | 3,624.0 | $39.58 |
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2025-10-24 | Sale | 107,941.0 | $39.5 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2025-10-24 | Sale | 107,941.0 | $39.5 |
| Kolchinsky Peter | Director,TenPercentOwner | 2025-10-24 | Sale | 107,941.0 | $39.5 |
| Shah Rajeev M. | Director,TenPercentOwner | 2025-10-24 | Sale | 107,941.0 | $39.5 |
| RA Capital Nexus Fund, L.P. | Director | 2025-10-24 | Sale | 107,941.0 | $39.5 |
| RA Capital Nexus Fund III, L.P. | Director | 2025-10-24 | Sale | 107,941.0 | $39.5 |
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2025-10-24 | Sale | 66,672.0 | $39.5 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2025-10-24 | Sale | 66,672.0 | $39.5 |
| Kolchinsky Peter | Director,TenPercentOwner | 2025-10-24 | Sale | 66,672.0 | $39.5 |
| Shah Rajeev M. | Director,TenPercentOwner | 2025-10-24 | Sale | 66,672.0 | $39.5 |
| RA Capital Nexus Fund, L.P. | Director | 2025-10-24 | Sale | 66,672.0 | $39.5 |
| RA Capital Nexus Fund III, L.P. | Director | 2025-10-24 | Sale | 66,672.0 | $39.5 |
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2025-10-24 | Sale | 122,271.0 | $39.5 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2025-10-24 | Sale | 122,271.0 | $39.5 |
| Kolchinsky Peter | Director,TenPercentOwner | 2025-10-24 | Sale | 122,271.0 | $39.5 |
| Shah Rajeev M. | Director,TenPercentOwner | 2025-10-24 | Sale | 122,271.0 | $39.5 |
| RA Capital Nexus Fund, L.P. | Director | 2025-10-24 | Sale | 122,271.0 | $39.5 |
| RA Capital Nexus Fund III, L.P. | Director | 2025-10-24 | Sale | 122,271.0 | $39.5 |
| RA Capital Healthcare Fund LP | Director,TenPercentOwner | 2025-10-24 | Sale | 14,116.0 | $39.5 |
| RA CAPITAL MANAGEMENT, L.P. | Director,TenPercentOwner | 2025-10-24 | Sale | 14,116.0 | $39.5 |
| Kolchinsky Peter | Director,TenPercentOwner | 2025-10-24 | Sale | 14,116.0 | $39.5 |
| Shah Rajeev M. | Director,TenPercentOwner | 2025-10-24 | Sale | 14,116.0 | $39.5 |
| RA Capital Nexus Fund, L.P. | Director | 2025-10-24 | Sale | 14,116.0 | $39.5 |
| RA Capital Nexus Fund III, L.P. | Director | 2025-10-24 | Sale | 14,116.0 | $39.5 |
| Cloonan Michael | President & CEO | 2025-10-21 | Sale | 33,532.0 | $37.31 |
| Cloonan Michael | President & CEO | 2025-10-21 | Sale | 22,895.0 | $36.6 |
| Cloonan Michael | President & CEO | 2025-10-21 | Sale | 30,049.0 | $35.63 |
| Cloonan Michael | President & CEO | 2025-10-21 | Sale | 13,324.0 | $34.44 |
| Booth Bruce | Director | 2025-10-21 | Sale | 17.0 | $36.42 |
| Booth Bruce | Director | 2025-10-21 | Sale | 83.0 | $36.42 |
| Booth Bruce | Director | 2025-10-21 | Sale | 5,316.0 | $35.69 |
| Booth Bruce | Director | 2025-10-21 | Sale | 25,327.0 | $35.69 |
| Booth Bruce | Director | 2025-10-21 | Sale | 1,210.0 | $34.91 |
| Booth Bruce | Director | 2025-10-21 | Sale | 5,763.0 | $34.91 |
| Booth Bruce | Director | 2025-10-21 | Sale | 4,187.0 | $33.87 |
| Booth Bruce | Director | 2025-10-21 | Sale | 19,948.0 | $33.87 |
| Booth Bruce | Director | 2025-10-21 | Sale | 4,688.0 | $32.69 |
| Booth Bruce | Director | 2025-10-21 | Sale | 22,339.0 | $32.69 |
| Booth Bruce | Director | 2025-10-20 | Sale | 5,412.0 | $32.33 |
| Booth Bruce | Director | 2025-10-20 | Sale | 25,788.0 | $32.33 |
| Booth Bruce | Director | 2025-10-20 | Sale | 4,300.0 | $31.79 |
| Booth Bruce | Director | 2025-10-20 | Sale | 20,485.0 | $31.79 |
| Booth Bruce | Director | 2025-10-17 | Sale | 52.0 | $33.47 |
| Booth Bruce | Director | 2025-10-17 | Sale | 248.0 | $33.47 |
| Booth Bruce | Director | 2025-10-17 | Sale | 4,503.0 | $32.71 |
| Booth Bruce | Director | 2025-10-17 | Sale | 21,451.0 | $32.71 |
| Booth Bruce | Director | 2025-10-17 | Sale | 6,049.0 | $32.1 |
| Booth Bruce | Director | 2025-10-17 | Sale | 28,821.0 | $32.1 |
| Booth Bruce | Director | 2025-10-16 | Sale | 2,705.0 | $33.38 |
| Booth Bruce | Director | 2025-10-16 | Sale | 12,888.0 | $33.38 |
| Booth Bruce | Director | 2025-10-16 | Sale | 15,384.0 | $32.84 |
| Booth Bruce | Director | 2025-10-16 | Sale | 73,296.0 | $32.84 |
| Booth Bruce | Director | 2025-10-16 | Sale | 9,470.0 | $31.69 |
| Booth Bruce | Director | 2025-10-16 | Sale | 45,117.0 | $31.69 |
| Booth Bruce | Director | 2025-10-16 | Sale | 1,804.0 | $30.15 |
| Booth Bruce | Director | 2025-10-16 | Sale | 8,596.0 | $30.15 |
| Cloonan Michael | President & CEO | 2025-10-16 | Sale | 200.0 | $34.0 |
| Cloonan Michael | President & CEO | 2025-10-16 | Sale | 10,225.0 | $31.46 |
| Cloonan Michael | President & CEO | 2025-10-15 | Sale | 14,775.0 | $31.11 |
| Booth Bruce | Director | 2025-10-15 | Sale | 6,303.0 | $31.12 |
| Booth Bruce | Director | 2025-10-15 | Sale | 30,032.0 | $31.12 |
| Booth Bruce | Director | 2025-10-15 | Sale | 13,795.0 | $30.37 |
| Booth Bruce | Director | 2025-10-15 | Sale | 65,726.0 | $30.37 |
| Booth Bruce | Director | 2025-10-14 | Sale | 105.0 | $29.95 |
| Booth Bruce | Director | 2025-10-14 | Sale | 501.0 | $29.95 |
| Booth Bruce | Director | 2025-10-13 | Sale | 857.0 | $31.03 |
| Booth Bruce | Director | 2025-10-13 | Sale | 4,082.0 | $31.03 |
| Booth Bruce | Director | 2025-10-13 | Sale | 9,245.0 | $30.32 |
| Booth Bruce | Director | 2025-10-13 | Sale | 44,048.0 | $30.32 |
| Booth Bruce | Director | 2025-10-10 | Sale | 3,511.0 | $29.98 |
| Booth Bruce | Director | 2025-10-10 | Sale | 16,727.0 | $29.98 |
| Booth Bruce | Director | 2025-10-06 | Sale | 2,047.0 | $29.95 |
| Booth Bruce | Director | 2025-10-06 | Sale | 9,753.0 | $29.95 |
| Booth Bruce | Director | 2025-10-03 | Sale | 6,548.0 | $30.0 |
| Booth Bruce | Director | 2025-10-03 | Sale | 31,198.0 | $30.0 |
| Booth Bruce | Director | 2025-10-01 | Sale | 35.0 | $29.95 |
| Booth Bruce | Director | 2025-10-01 | Sale | 165.0 | $29.95 |
| Booth Bruce | Director | 2025-09-30 | Sale | 2,149.0 | $30.06 |
| Booth Bruce | Director | 2025-09-30 | Sale | 10,239.0 | $30.06 |
| Booth Bruce | Director | 2025-09-29 | Sale | 11,468.0 | $30.09 |
| Booth Bruce | Director | 2025-09-29 | Sale | 54,637.0 | $30.09 |
| Cloonan Michael | President & CEO | 2025-09-29 | Sale | 7,793.0 | $29.7 |
| Cloonan Michael | President & CEO | 2025-09-26 | Sale | 17,207.0 | $28.85 |
| Fitzpatrick Jennifer | Chief Legal Officer | 2025-09-04 | Sale | 10,250.0 | $23.12 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-09-02 | Sale | 8,836.0 | $25.08 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-08-29 | Sale | 748.0 | $25.18 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-08-28 | Sale | 16,098.0 | $25.97 |
| Cloonan Michael | President & CEO | 2025-08-27 | Sale | 7,426.0 | $25.01 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-08-27 | Sale | 3,618.0 | $25.1 |
| Cloonan Michael | President & CEO | 2025-08-26 | Sale | 17,574.0 | $24.96 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-08-26 | Sale | 3,700.0 | $25.13 |
| Cloonan Michael | President & CEO | 2025-08-20 | Sale | 25,000.0 | $22.75 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-08-20 | Sale | 17,500.0 | $22.69 |
| Ridloff Elena | CFO & Head of Corp. Dev. | 2025-08-19 | Sale | 34,500.0 | $21.08 |