System1, Inc. (SST)
Data as of , from SEC Form 4 filings.
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About System1, Inc. (SST)
The SEC lists System1, Inc. under CIK 0001805833, in computer programming, data processing, etc. We track it alongside the rest of the Information Technology sector.
SST Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Tax withholding / forfeiture | 4 | 28,360 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
SST insider transactions (Form 4)
3351 Form 4 filings on record, the earliest from Oct 16, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Tax withholding / forfeiture | Class A Common Stock | 7,058 footnote F1 | $2.60 | $18K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 6,124 footnote F1 | $2.60 | $16K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 6,022 footnote F1 | $2.60 | $16K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 9,156 footnote F1 | $2.60 | $24K | ||
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| Grant or award | Class A Common Stock | 35,300 footnote F1 | $0.00 | - | ||
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| Open-market purchase | Class A Common Stock | 26,910 footnote F1 | $3.00 | $81K | ||
| Tax withholding / forfeiture | Class A Common Stock | 301 footnote F3 | $2.26 | $680 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 341 footnote F1 | $2.26 | $771 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 331 footnote F1 | $2.26 | $748 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 341 footnote F1 | $2.26 | $771 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 258 footnote F1 | $4.18 | $1K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 211 footnote F1 | $4.18 | $882 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 231 footnote F1 | $4.18 | $966 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 211 footnote F1 | $4.18 | $882 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 345 footnote F1 | $4.40 | $2K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 377 footnote F1 | $4.40 | $2K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 371 footnote F1 | $4.40 | $2K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 377 footnote F1 | $4.40 | $2K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 263 footnote F1 | $6.18 | $2K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 158 footnote F1 | $6.18 | $976 | ||
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| Tax withholding / forfeiture | Class A Common Stock | 235 footnote F1 | $6.18 | $1K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 214 footnote F1 | $6.18 | $1K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 377 footnote F1 | $7.94 | $3K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 352 footnote F1 | $7.94 | $3K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 282 footnote F1 | $7.94 | $2K | ||
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| Tax withholding / forfeiture | Class A Common Stock | 382 footnote F1 | $7.94 | $3K | ||
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| CEE Holdings Trust - 10% Owner | Open-market purchase | Class A Common Stock | 11,015 | $7.32 | $81K | |
| CEE Holdings Trust - 10% Owner | Open-market purchase | Class A Common Stock | 6,567 | $6.32 | $42K | |
| CEE Holdings Trust - 10% Owner | Open-market purchase | Class A Common Stock | 12,584 | $6.25 | $79K | |
| CEE Holdings Trust - 10% Owner | Open-market purchase | Class A Common Stock | 12,584 | $6.90 | $87K | |
| Ryan R. Caswell - Director | Grant or award | Class A Common Stock | 15,000 | $0.00 | - | |
| John Civantos - Director | Grant or award | Class A Common Stock | 15,000 | $0.00 | - | |
| Caroline Horn - Director | Grant or award | Class A Common Stock | 15,000 | $0.00 | - | |
SST insider trading FAQ
What is the latest insider trade for SST?
System1, Inc. (SST) had 4 insider filings in the last 90 days, with the most recent on 2026-07-17. The full record for SST runs to 51 Form 4 filings, the earliest from 2024-10-16. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying SST stock?
No insider purchases of SST were filed in the last 90 days. 5 purchases are on record for this company.
How many insiders are selling SST stock?
No insider sales of SST were filed in the last 90 days.
Where can I see SST SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects SST Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Elizabeth Sestanovich view on EDGAR
- - Brian Coppola view on EDGAR
- - Tridivesh Kidambi view on EDGAR
- - Daniel J. Weinrot view on EDGAR
- - Tridivesh Kidambi view on EDGAR
- - Tridivesh Kidambi view on EDGAR
- - Elizabeth Sestanovich view on EDGAR
- - Brian Coppola view on EDGAR
- - Daniel J. Weinrot view on EDGAR
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Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Information Technology
- Where SST's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- SST on your watchlist
- Every SST Form 4 filing on record
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- The daily trading plan of ranked insider buys, on a delay, with the plan archive