13 insiders reported 60 Form 4 transactions for System1, Inc. (SST) over the past 18 months (most recent 2026-07-17). Recent activity: Weinrot Daniel J (General Counsel & Secretary) Sell 9,156 shares, Kidambi Tridivesh (Chief Financial Officer) Sell 6,022 shares, Coppola Brian (Chief Ad Operations Officer) Sell 6,124 shares, Sestanovich Elizabeth (Chief People Officer) Sell 7,058 shares, Kidambi Tridivesh (Chief Financial Officer) Buy 35,300 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-17 | Weinrot Daniel J | General Counsel & Secretary | Sell | 9,156 | $23,806 |
| 2026-07-17 | Kidambi Tridivesh | Chief Financial Officer | Sell | 6,022 | $15,657 |
| 2026-07-17 | Coppola Brian | Chief Ad Operations Officer | Sell | 6,124 | $15,922 |
| 2026-07-17 | Sestanovich Elizabeth | Chief People Officer | Sell | 7,058 | $18,351 |
| 2026-06-02 | Kidambi Tridivesh | Chief Financial Officer | Buy | 35,300 | $0 |
| 2026-04-17 | Weinrot Daniel J | General Counsel & Secretary | Sell | 341 | $771 |
| 2026-04-17 | Kidambi Tridivesh | Chief Financial Officer | Buy | 26,910 | $80,730 |
| 2026-04-17 | Coppola Brian | Chief Ad Operations Officer | Sell | 331 | $748 |
| 2026-04-17 | Sestanovich Elizabeth | Chief People Officer | Sell | 341 | $771 |
| 2026-04-17 | Kidambi Tridivesh | Chief Financial Officer | Sell | 301 | $680 |
| 2026-01-29 | Sestanovich Elizabeth | Chief People Officer | Sell | 211 | $882 |
| 2026-01-29 | Kidambi Tridivesh | Chief Financial Officer | Sell | 258 | $1,078 |
| 2026-01-29 | Weinrot Daniel J | General Counsel & Secretary | Sell | 211 | $882 |
| 2026-01-29 | Coppola Brian | Chief Ad Operations Officer | Sell | 231 | $966 |
| 2026-01-16 | Kidambi Tridivesh | Chief Financial Officer | Sell | 345 | $1,518 |
| 2026-01-16 | Sestanovich Elizabeth | Chief People Officer | Sell | 377 | $1,659 |
| 2026-01-16 | Weinrot Daniel J | General Counsel & Secretary | Sell | 377 | $1,659 |
| 2026-01-16 | Coppola Brian | Chief Ad Operations Officer | Sell | 371 | $1,632 |
| 2025-10-30 | Kidambi Tridivesh | Chief Financial Officer | Sell | 263 | $1,625 |
| 2025-10-30 | Coppola Brian | Chief Ad Operations Officer | Sell | 235 | $1,452 |
| 2025-10-30 | Sestanovich Elizabeth | Chief People Officer | Sell | 158 | $976 |
| 2025-10-30 | Weinrot Daniel J | General Counsel & Secretary | Sell | 214 | $1,323 |
| 2025-10-17 | Kidambi Tridivesh | Chief Financial Officer | Sell | 352 | $2,795 |
| 2025-10-17 | Weinrot Daniel J | General Counsel & Secretary | Sell | 382 | $3,033 |
| 2025-10-17 | Coppola Brian | Chief Ad Operations Officer | Sell | 377 | $2,993 |
Source: SEC Form 4 filings · as of 2026-07-17