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SION • CIK 0002036042
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People and entities that have reported ownership via Form 3, 3/A, 4, 4/A, 5, 5/A
Parsed transactions from Form 4 (and 3/5) filings (past year)
0 transactions · 0 shares
— total value
25 transactions · 5.58M shares
$118.07M total value
1 transactions · 10.25K shares
| Filing Date | Insiders | Transactions | Filing |
|---|---|---|---|
| Sep 21, 2026 | Shah Rajeev M. | Sold 3.45M @ $6.3312/share ($21.84M) | View |
| Sep 18, 2026 | Fitzpatrick Jennifer | Grant/Award: 159.41K shares Discretionary: 103.14K | View |
| Sep 18, 2026 | McKee Charlotte | Grant/Award: 255.70K shares Discretionary: 155.70K | View |
| Sep 18, 2026 | Ridloff Elena | Grant/Award: 259.98K shares Discretionary: 165.44K | View |
| Sep 18, 2026 | Cloonan Michael | Grant/Award: 654.15K shares Discretionary: 436.10K | View |
| Jul 9, 2026 | Thompson Peter A. | Sold 85.92K @ $44.86/share ($3.85M) | View |
| Jul 9, 2026 | OrbiMed Capital GP VIII LLC | Sold 85.92K @ $44.86/share ($3.85M) | View |
| Jul 2, 2026 | Thompson Peter A. | Sold 115.84K @ $45.50/share ($5.27M) | View |
| Jul 2, 2026 | OrbiMed Capital GP VIII LLC | Sold 115.84K @ $45.50/share ($5.27M) | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| Jun 18, 2026 | — | — | View |
| May 29, 2026 | Thompson Peter A. | Sold 101 @ $44.49/share ($4.49K) | View |
| May 29, 2026 | OrbiMed Capital GP VIII LLC | Sold 101 @ $44.49/share ($4.49K) | View |
| May 11, 2026 | Thompson Peter A. | Sold 292.95K @ $45.6186/share ($13.36M) | View |
| May 11, 2026 | OrbiMed Capital GP VIII LLC | Sold 292.95K @ $45.6186/share ($13.36M) | View |
| Apr 21, 2026 | Thompson Peter A. | Sold 55.34K @ $44.6715/share ($2.47M) | View |
| Apr 21, 2026 | OrbiMed Capital GP VIII LLC | Sold 55.34K @ $44.6715/share ($2.47M) | View |
| Apr 16, 2026 | Thompson Peter A. | Sold 510.58K @ $44.9389/share ($22.95M) | View |
| Apr 16, 2026 | OrbiMed Capital GP VIII LLC | Sold 510.58K @ $44.9389/share ($22.95M) | View |
| Jan 6, 2026 | — | — | View |
| Jan 6, 2026 | — | — | View |
| Jan 6, 2026 | — | — | View |
| Dec 9, 2025 | Fitzpatrick Jennifer | Exercised 10.25K options @ $6.11/share; sold 10.25K @ $40.52/share ($415.33K) | View |