CIK 0001805833 · Non-accelerated filer<br>Smaller reporting company
System1, Inc.
Sign in to watch- Tickers
- SST SSTPW
- Exchange
- NYSE, OTC
- Industry
- Services-Computer Programming, Data Processing, Etc.
- FY end
- Dec 31
- Entity type
- operating
- EIN
- 923978051
- Phone
- 310-924-6037
- Business address
- 4235 REDWOOD AVENUE, MARINA DEL REY, CA, 90066
- Former names
- Trebia Acquisition Corp.
Securities
- SST System1, Inc. Class A Common Stock NYSE
- SSTPW Common stock OTC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-07-15 | Sestanovich Elizabeth Chief People Officer | Shares withheld for taxes | −7,058 | $2.60 | $18K | 51,890 |
| 2026-07-15 | Coppola Brian Chief Ad Operations Officer | Shares withheld for taxes | −6,124 | $2.60 | $16K | 59,774 |
| 2026-07-15 | Kidambi Tridivesh Chief Financial Officer | Shares withheld for taxes | −6,022 | $2.60 | $16K | 175,793 |
| 2026-07-15 | Weinrot Daniel J General Counsel & Secretary | Shares withheld for taxes | −9,156 | $2.60 | $24K | 59,897 |
| 2026-05-29 | Kidambi Tridivesh Chief Financial Officer | Grant or award | +35,300 | 181,815 | ||
| 2026-04-15 | Kidambi Tridivesh Chief Financial Officer | Purchase | +26,910 | $3.00 | $81K | 146,816 |
| 2026-04-15 | Kidambi Tridivesh Chief Financial Officer | Shares withheld for taxes | −301 | $2.26 | $680 | 146,515 |
| 2026-04-15 | Sestanovich Elizabeth Chief People Officer | Shares withheld for taxes | −341 | $2.26 | $771 | 58,948 |
| 2026-04-15 | Coppola Brian Chief Ad Operations Officer | Shares withheld for taxes | −331 | $2.26 | $748 | 65,898 |
| 2026-04-15 | Weinrot Daniel J General Counsel & Secretary | Shares withheld for taxes | −341 | $2.26 | $771 | 69,053 |
| 2026-01-28 | Kidambi Tridivesh Chief Financial Officer | Shares withheld for taxes | −258 | $4.18 | $1K | 119,906 |
| 2026-01-28 | Sestanovich Elizabeth Chief People Officer | Shares withheld for taxes | −211 | $4.18 | $882 | 59,289 |
| 2026-01-28 | Coppola Brian Chief Ad Operations Officer | Shares withheld for taxes | −231 | $4.18 | $966 | 66,229 |
| 2026-01-28 | Weinrot Daniel J General Counsel & Secretary | Shares withheld for taxes | −211 | $4.18 | $882 | 69,394 |
| 2026-01-15 | Kidambi Tridivesh Chief Financial Officer | Shares withheld for taxes | −345 | $4.40 | $2K | 120,164 |
| 2026-01-15 | Sestanovich Elizabeth Chief People Officer | Shares withheld for taxes | −377 | $4.40 | $2K | 59,500 |
| 2026-01-15 | Coppola Brian Chief Ad Operations Officer | Shares withheld for taxes | −371 | $4.40 | $2K | 66,460 |
| 2026-01-15 | Weinrot Daniel J General Counsel & Secretary | Shares withheld for taxes | −377 | $4.40 | $2K | 69,605 |
| 2025-10-28 | Kidambi Tridivesh Chief Financial Officer | Shares withheld for taxes | −263 | $6.18 | $2K | 120,509 |
| 2025-10-28 | Sestanovich Elizabeth Chief People Officer | Shares withheld for taxes | −158 | $6.18 | $976 | 59,877 |
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