Company profile
System1, Inc. Insider Trading
SSTEvery SEC Form 4 insider trading filing for System1, Inc. (SST) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- NYSE
- Sector
- Services-Computer Programming, Data Processing, Etc.
- CIK
- 0001805833
- Filings
- 181
- Insiders
- 22
- Last filing
- 2026-07-15
Activity summary
No insider transactions in the last 30 days. The most recent was on July 15, 2026, when Brian Coppola sold 6,124 shares. 181 filings from 22 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. System1, Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $8.3M.
90 day insight
Over the last 90 days, System1, Inc. insiders sold $74K across 4 transactions with no open-market purchases.
- Most active insider: Daniel J Weinrot with 1 transaction totaling $24K.
- Largest single sale: $24K by Daniel J Weinrot on Jul 15, 2026.
Activity skews bearish — sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 15, 2026 | Brian Coppola | SST | Tax Withholding | 6,124 | $2.60 | $16K |
| Jul 15, 2026 | Tridivesh Kidambi | SST | Tax Withholding | 6,022 | $2.60 | $16K |
| Jul 15, 2026 | Elizabeth Sestanovich | SST | Tax Withholding | 7,058 | $2.60 | $18K |
| Jul 15, 2026 | Daniel J Weinrot | SST | Tax Withholding | 9,156 | $2.60 | $24K |
| May 29, 2026 | Tridivesh Kidambi | SST | Award | 35,300 | — | — |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=SST" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of System1, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →