SION Sionna Therapeutics, Inc.
Nasdaq · SEC CIK 2036042 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $193.08M 36 sales by 10 insiders
- Filings on record
- 82 since 2025-02-10, latest 2026-09-21 18:56
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Thompson Peter A. | Dir | — | $55.67M |
| ORBIMED ADVISORS LLC | Dir | — | $52.73M |
| RA CAPITAL MANAGEMENT, L.P. | Dir, 10% | — | $27.34M |
| Booth Bruce | Dir | — | $22.09M |
| RA Capital Nexus Fund III, L.P. | Dir | — | $14.76M |
| WINKELRIED JON | 10% | — | $10.00M |
| Cloonan Michael | Pres, CEO, Dir | — | $5.13M |
| OrbiMed Capital GP VIII LLC | Dir | — | $2.95M |
| Fitzpatrick Jennifer | CLO, Head of Program Mgmt | — | $1.21M |
| Kolchinsky Peter | Dir, 10% | — | $1.20M |
Transactions 69
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MI | 2026-09-21 18:56 | 2026-09-17 | SION | RA CAPITAL MANAGEMENT, L.P. | Dir, 10% | S - Sale | $6.33 | -3.45M | 3.45M | -50% | -$21.84M |
| DM | 2026-09-18 16:59 | 2026-09-17 | SION | Ridloff Elena | CFO, CBO | A - Grant | $0.00 | +94.5K | 133.1K | +245% | $0 |
| DM | 2026-09-18 16:58 | 2026-09-17 | SION | McKee Charlotte | CMO, Head of R, D | A - Grant | $0.00 | +100.0K | 128.4K | +352% | $0 |
| DM | 2026-09-18 16:56 | 2026-09-17 | SION | Fitzpatrick Jennifer | CLO, Head of Program Mgmt | A - Grant | $0.00 | +56.3K | 56.3K | New | $0 |
| DM | 2026-09-18 16:52 | 2026-09-17 | SION | Cloonan Michael | Pres, CEO, Dir | A - Grant | $0.00 | +218.1K | 765.4K | +40% | $0 |
| TI | 2026-07-09 16:47 | 2026-07-07 | SION | Thompson Peter A. | Dir | S - Sale | $44.86 | -85.9K | 2.47M | -3% | -$3.85M |
| TI | 2026-07-09 16:44 | 2026-07-07 | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $44.86 | -85.9K | 2.47M | -3% | -$3.85M |
| DT | 2026-07-07 16:38 | 2026-07-06 | SION | Fitzpatrick Jennifer | CLO | M - OptEx | $6.11 | +10.2K | 10.2K | New | +$62.6K |
| DT | 2026-07-07 16:38 | 2026-07-06 | SION | Fitzpatrick Jennifer | CLO | S - Sale+OE | $43.60 | -10.2K | 0 | -100% | -$446.9K |
| TI | 2026-07-02 16:45 | 2026-06-30 | SION | Thompson Peter A. | Dir | S - Sale | $45.50 | -115.8K | 2.56M | -4% | -$5.27M |
| TI | 2026-07-02 16:42 | 2026-06-30 | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $45.50 | -115.8K | 2.56M | -4% | -$5.27M |
| TI | 2026-05-29 21:02 | 2026-05-27 | SION | Thompson Peter A. | Dir | S - Sale | $44.49 | -101 | 2.67M | -0.0% | -$4,493 |
| TI | 2026-05-29 20:57 | 2026-05-27 | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $44.49 | -101 | 2.67M | -0.0% | -$4,493 |
| MTI | 2026-05-11 19:14 | 2026-05-07+ | SION | Thompson Peter A. | Dir | S - Sale | $45.62 | -293.0K | 2.67M | -10% | -$13.36M |
| MTI | 2026-05-11 18:58 | 2026-05-07+ | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $45.62 | -293.0K | 2.67M | -10% | -$13.36M |
| MTI | 2026-04-21 20:42 | 2026-04-17+ | SION | Thompson Peter A. | Dir | S - Sale | $44.67 | -55.3K | 2.96M | -2% | -$2.47M |
| MTI | 2026-04-21 20:40 | 2026-04-17+ | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $44.67 | -55.3K | 2.96M | -2% | -$2.47M |
| MTI | 2026-04-16 19:15 | 2026-04-14+ | SION | Thompson Peter A. | Dir | S - Sale | $44.94 | -510.6K | 3.02M | -14% | -$22.95M |
| MTI | 2026-04-16 19:03 | 2026-04-14+ | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $44.94 | -510.6K | 3.02M | -14% | -$22.95M |
| D | 2026-03-06 | 2026-03-05 | SION | Fitzpatrick Jennifer | CLO | S - Sale+OE | $33.86 | -10.2K | 0 | -100% | -$347.1K |
| D | 2026-03-06 | 2026-03-05 | SION | Fitzpatrick Jennifer | CLO | M - OptEx | $6.11 | +10.2K | 10.2K | New | +$62.6K |
| MI | 2026-02-04 | 2026-02-02+ | SION | Thompson Peter A. | Dir | S - Sale | $44.58 | -31.0K | 3.53M | -0.9% | -$1.38M |
| MI | 2026-02-04 | 2026-02-02+ | SION | OrbiMed Capital GP VIII LLC | Dir | S - Sale | $44.58 | -31.0K | 3.53M | -0.9% | -$1.38M |
| I | 2026-01-26 | 2026-01-22 | SION | WINKELRIED JON | 10% | S - Sale | $40.00 | -250.0K | 6.49M | -4% | -$10.00M |
| I | 2025-12-29 | 2025-12-24 | SION | Thompson Peter A. | Dir | S - Sale | $44.55 | -33.4K | 3.56M | -0.9% | -$1.49M |
| I | 2025-12-29 | 2025-12-24 | SION | OrbiMed Capital GP VIII LLC | Dir | S - Sale | $44.55 | -33.4K | 3.56M | -0.9% | -$1.49M |
| MI | 2025-12-19 | 2025-12-17+ | SION | Thompson Peter A. | Dir | S - Sale | $44.49 | -1,875 | 3.60M | -0.1% | -$83.4K |
| MI | 2025-12-19 | 2025-12-17+ | SION | OrbiMed Capital GP VIII LLC | Dir | S - Sale | $44.49 | -1,875 | 3.60M | -0.1% | -$83.4K |
| D | 2025-12-09 | 2025-12-05 | SION | Fitzpatrick Jennifer | CLO | S - Sale+OE | $40.52 | -10.2K | 0 | -100% | -$415.3K |
| D | 2025-12-09 | 2025-12-05 | SION | Fitzpatrick Jennifer | CLO | M - OptEx | $6.11 | +10.2K | 10.2K | New | +$62.6K |
| MI | 2025-11-26 | 2025-11-24+ | SION | ORBIMED ADVISORS LLC | Dir | S - Sale | $44.55 | -108.1K | 3.60M | -3% | -$4.81M |
| MI | 2025-11-26 | 2025-11-24+ | SION | Thompson Peter A. | Dir | S - Sale | $44.55 | -108.1K | 3.61M | -3% | -$4.81M |
| MI | 2025-11-24 | 2025-11-20+ | SION | Kolchinsky Peter | Dir, 10% | S - Sale | $39.61 | -30.3K | 660.2K | -4% | -$1.20M |
| MI | 2025-11-19 | 2025-11-17+ | SION | RA CAPITAL MANAGEMENT, L.P. | Dir, 10% | S - Sale | $40.34 | -136.4K | 182.5K | -43% | -$5.50M |
| MI | 2025-10-28 | 2025-10-24+ | SION | RA Capital Nexus Fund III, L.P. | Dir | S - Sale | $39.51 | -373.6K | 6.91M | -5% | -$14.76M |
| DM | 2025-10-22 | 2025-10-21 | SION | Cloonan Michael | Pres, CEO, Dir | S - Sale+OE | $36.26 | -99.8K | 547.3K | -15% | -$3.62M |
| DM | 2025-10-22 | 2025-10-21 | SION | Cloonan Michael | Pres, CEO, Dir | M - OptEx | $6.11 | +99.8K | 577.4K | +21% | +$609.8K |
| MI | 2025-10-21 | 2025-10-21 | SION | Booth Bruce | Dir | S - Sale | $34.22 | -88.9K | 2.36M | -4% | -$3.04M |
| MI | 2025-10-20 | 2025-10-16+ | SION | Booth Bruce | Dir | S - Sale | $32.30 | -286.4K | 2.48M | -10% | -$9.25M |
| DM | 2025-10-17 | 2025-10-15+ | SION | Cloonan Michael | Pres, CEO, Dir | S - Sale+OE | $31.27 | -25.2K | 547.3K | -4% | -$788.1K |
| DM | 2025-10-17 | 2025-10-15+ | SION | Cloonan Michael | Pres, CEO, Dir | M - OptEx | $6.11 | +25.2K | 562.1K | +5% | +$154.0K |
| MI | 2025-10-15 | 2025-10-10+ | SION | Booth Bruce | Dir | S - Sale | $30.47 | -194.9K | 771.8K | -20% | -$5.94M |
| MI | 2025-10-07 | 2025-10-03+ | SION | Booth Bruce | Dir | S - Sale | $29.99 | -49.5K | 787.5K | -6% | -$1.49M |
| MI | 2025-10-01 | 2025-09-29+ | SION | Booth Bruce | Dir | S - Sale | $30.08 | -78.7K | 2.83M | -3% | -$2.37M |
| DM | 2025-09-30 | 2025-09-26+ | SION | Cloonan Michael | Pres, CEO, Dir | M - OptEx | $6.11 | +25.0K | 564.5K | +5% | +$152.8K |
| DM | 2025-09-30 | 2025-09-26+ | SION | Cloonan Michael | Pres, CEO, Dir | S - Sale+OE | $29.11 | -25.0K | 547.3K | -4% | -$727.9K |
| D | 2025-09-05 | 2025-09-04 | SION | Fitzpatrick Jennifer | CLO | S - Sale+OE | $23.12 | -10.2K | 0 | -100% | -$237.0K |
| D | 2025-09-05 | 2025-09-04 | SION | Fitzpatrick Jennifer | CLO | M - OptEx | $6.11 | +10.2K | 10.2K | New | +$62.6K |
| M | 2025-09-03 | 2025-08-29+ | SION | Ridloff Elena | CFO, Head of Corp. Dev | S - Sale | $25.09 | -9,584 | 38.5K | -20% | -$240.4K |
| M | 2025-08-28 | 2025-08-26+ | SION | Ridloff Elena | CFO, Head of Corp. Dev | S - Sale | $25.70 | -23.4K | 48.1K | -33% | -$601.9K |
| DM | 2025-08-28 | 2025-08-26+ | SION | Cloonan Michael | Pres, CEO, Dir | S - Sale+OE | $24.97 | -25.0K | 547.3K | -4% | -$624.4K |
| DM | 2025-08-28 | 2025-08-26+ | SION | Cloonan Michael | Pres, CEO, Dir | M - OptEx | $6.11 | +25.0K | 564.9K | +5% | +$152.8K |
| M | 2025-08-21 | 2025-08-19+ | SION | Ridloff Elena | CFO, Head of Corp. Dev | S - Sale | $21.62 | -52.0K | 71.5K | -42% | -$1.12M |
| D | 2025-08-21 | 2025-08-20 | SION | Cloonan Michael | Pres, CEO, Dir | S - Sale+OE | $22.75 | -25.0K | 547.3K | -4% | -$568.8K |
| D | 2025-08-21 | 2025-08-20 | SION | Cloonan Michael | Pres, CEO, Dir | M - OptEx | $6.11 | +25.0K | 572.3K | +5% | +$152.8K |
| I | 2025-07-01 | 2025-06-27 | SION | COULTER JAMES G | 10% | P - Purchase | $15.84 | +60.0K | 6.74M | +0.9% | +$950.4K |
| DI | 2025-02-12 | 2025-02-10 | SION | TPG GP A, LLC | 10% | C - Cnv Deriv | — | +4.88M | 5.56M | +712% | — |
| DI | 2025-02-12 | 2025-02-10 | SION | TPG GP A, LLC | 10% | P - Purchase | $18.00 | +1.12M | 6.68M | +20% | +$20.25M |
| DI | 2025-02-10 | 2025-02-10 | SION | Thompson Peter A. | Dir | P - Purchase | $18.00 | +550.0K | 3.70M | +17% | +$9.90M |
| DI | 2025-02-10 | 2025-02-10 | SION | Thompson Peter A. | Dir | C - Cnv Deriv | — | +3.15M | 3.15M | New | — |
| DI | 2025-02-10 | 2025-02-10 | SION | Atlas Venture Fund XI, L.P. | 10% | P - Purchase | $18.00 | +60.0K | 807.7K | +8% | +$1.08M |
| DI | 2025-02-10 | 2025-02-10 | SION | Atlas Venture Fund XI, L.P. | 10% | C - Cnv Deriv | — | +747.7K | 747.7K | New | — |
| D | 2025-02-10 | 2025-02-10 | SION | Atlas Venture Fund XI, L.P. | 10% | C - Cnv Deriv | — | +2.89M | 2.89M | New | — |
| DI | 2025-02-10 | 2025-02-10 | SION | OrbiMed Capital GP VIII LLC | Dir | C - Cnv Deriv | — | +3.15M | 3.15M | New | — |
| DI | 2025-02-10 | 2025-02-10 | SION | OrbiMed Capital GP VIII LLC | Dir | P - Purchase | $18.00 | +550.0K | 3.70M | +17% | +$9.90M |
| DMI | 2025-02-10 | 2025-02-10 | SION | RA CAPITAL MANAGEMENT, L.P. | Dir, 10% | C - Cnv Deriv | — | +7.95M | 327.8K | New | — |
| DMI | 2025-02-10 | 2025-02-10 | SION | RA CAPITAL MANAGEMENT, L.P. | Dir, 10% | P - Purchase | $18.00 | +1.12M | 2.32M | +94% | +$20.25M |
| DI | 2025-02-10 | 2025-02-10 | SION | Booth Bruce | Dir | P - Purchase | $18.00 | +60.0K | 807.7K | +8% | +$1.08M |
| DMI | 2025-02-10 | 2025-02-10 | SION | Booth Bruce | Dir | C - Cnv Deriv | — | +3.63M | 2.89M | New | — |
Purchase Sale Sale after option exercise All abbreviations