X |
Filing Date |
Trade Date |
Ticker |
Insider Name | Title |
Trade Type |
Price |
Qty |
Owned |
ΔOwn |
Value |
1d |
1w |
1m |
6m |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-10-21 | SION | Cloonan Michael | Pres, CEO | S - Sale+OE | $36.26 | -99,800 | 547,343 | -15% | -$3,618,560 | |||||
2025-10-21 | SION | Booth Bruce | Dir | S - Sale | $34.22 | -88,878 | 2,995,602 | -3% | -$3,041,683 | ||||||
| M | 2025-10-16 | SION | Booth Bruce | Dir | S - Sale | $32.30 | -286,369 | 3,084,480 | -8% | -$9,251,102 | |||||
| DM | 2025-10-15 | SION | Cloonan Michael | Pres, CEO | S - Sale+OE | $31.28 | -25,200 | 547,343 | -4% | -$788,153 | |||||
| M | 2025-10-10 | SION | Booth Bruce | Dir | S - Sale | $30.47 | -194,932 | 3,370,849 | -5% | -$5,939,784 | |||||
| M | 2025-10-03 | SION | Booth Bruce | Dir | S - Sale | $29.99 | -49,546 | 3,565,781 | -1% | -$1,485,790 | |||||
| M | 2025-09-29 | SION | Booth Bruce | Dir | S - Sale | $30.08 | -78,693 | 3,615,327 | -2% | -$2,367,473 | |||||
| DM | 2025-09-26 | SION | Cloonan Michael | Pres, CEO | S - Sale+OE | $29.11 | -25,000 | 547,343 | -4% | -$727,798 | |||||
| D | 2025-09-04 | SION | Fitzpatrick Jennifer | GC | S - Sale+OE | $23.12 | -10,250 | 0 | -100% | -$236,980 | |||||
| M | 2025-08-29 | SION | Ridloff Elena | CFO, Head of Corp. Dev. | S - Sale | $25.09 | -9,584 | 38,532 | -20% | -$240,442 | |||||
| DM | 2025-08-26 | SION | Cloonan Michael | Pres, CEO | S - Sale+OE | $24.97 | -25,000 | 547,343 | -4% | -$624,361 | |||||
| M | 2025-08-26 | SION | Ridloff Elena | CFO, Head of Corp. Dev. | S - Sale | $25.70 | -23,416 | 48,116 | -33% | -$601,858 | |||||
| D | 2025-08-20 | SION | Cloonan Michael | Pres, CEO | S - Sale+OE | $22.75 | -25,000 | 547,343 | -4% | -$568,750 | |||||
| M | 2025-08-19 | SION | Ridloff Elena | CFO, Head of Corp. Dev. | S - Sale | $21.62 | -52,000 | 71,532 | -42% | -$1,124,335 | |||||
2025-06-27 | SION | Tpg Gp A, LLC | 10% | P - Purchase | $15.84 | +60,000 | 6,744,962 | +1% | +$950,400 | ||||||
| D | 2025-02-10 | SION | Tpg Gp A, LLC | 10% | P - Purchase | $18.00 | +1,125,000 | 6,684,962 | +20% | +$20,250,000 | |||||
| D | 2025-02-10 | SION | Ra Capital Management, L.P. | Dir, 10% | P - Purchase | $18.00 | +1,125,000 | 2,324,498 | +94% | +$20,250,000 | |||||
| D | 2025-02-10 | SION | Orbimed Advisors LLC | Dir | P - Purchase | $18.00 | +550,000 | 3,704,959 | +17% | +$9,900,000 | |||||
| D | 2025-02-10 | SION | Thompson Peter A. | Dir | P - Purchase | $18.00 | +550,000 | 3,704,959 | +17% | +$9,900,000 | |||||
| D | 2025-02-10 | SION | Booth Bruce | Dir | P - Purchase | $18.00 | +60,000 | 3,694,020 | +2% | +$1,080,000 | |||||
| D | 2025-02-10 | SION | Atlas Venture Fund Xi, L.P. | 10% | P - Purchase | $18.00 | +60,000 | 3,694,020 | +2% | +$1,080,000 |
| A | Amended filing |
| D | Derivative transaction in filing (usually option exercise) |
| E | Error detected in filing |
| M | Multiple transactions in filing; earliest reported transaction date and weighted average transaction price |
| S - Sale | Sale of securities on an exchange or to another person |
| S - Sale+OE | Sale of securities on an exchange or to another person (after option exercise) |
| F - Tax | Payment of exercise price or tax liability using portion of securities received from the company |
| P - Purchase | Purchase of securities on an exchange or from another person |