13 insiders reported 64 Form 4 transactions for System1, Inc. (SST) over the past 18 months (most recent 2026-06-02). Recent activity: Kidambi Tridivesh (Chief Financial Officer) Buy 35,300 shares, Sestanovich Elizabeth (Chief People Officer) Sell 341 shares, Weinrot Daniel J (General Counsel & Secretary) Sell 341 shares, Kidambi Tridivesh (Chief Financial Officer) Buy 26,910 shares, Coppola Brian (Chief Ad Operations Officer) Sell 331 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-02 | Kidambi Tridivesh | Chief Financial Officer | Buy | 35,300 | $0 |
| 2026-04-17 | Sestanovich Elizabeth | Chief People Officer | Sell | 341 | $771 |
| 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 | Kidambi Tridivesh | Chief Financial Officer | Sell | 301 | $680 |
| 2026-01-29 | Weinrot Daniel J | General Counsel & Secretary | Sell | 211 | $882 |
| 2026-01-29 | Kidambi Tridivesh | Chief Financial Officer | Sell | 258 | $1,078 |
| 2026-01-29 | Sestanovich Elizabeth | Chief People Officer | Sell | 211 | $882 |
| 2026-01-29 | Coppola Brian | Chief Ad Operations Officer | Sell | 231 | $966 |
| 2026-01-16 | Weinrot Daniel J | General Counsel & Secretary | Sell | 377 | $1,659 |
| 2026-01-16 | Sestanovich Elizabeth | Chief People Officer | Sell | 377 | $1,659 |
| 2026-01-16 | Kidambi Tridivesh | Chief Financial Officer | Sell | 345 | $1,518 |
| 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 |
| 2025-10-17 | Sestanovich Elizabeth | Chief People Officer | Sell | 282 | $2,239 |
| 2025-08-26 | CEE Holdings Trust | Insider | Buy | 11,015 | $80,630 |
| 2025-08-21 | CEE Holdings Trust | Insider | Buy | 6,567 | $41,503 |
| 2025-08-21 | CEE Holdings Trust | Insider | Buy | 12,584 | $78,650 |
Source: SEC Form 4 filings · as of 2026-06-02