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CIK 0001805833 · Non-accelerated filer<br>Smaller reporting company

System1, Inc.

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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
2025-07-29 Kidambi Tridivesh Chief Financial Officer Grant or award +50,000 121,124
2025-07-29 Kidambi Tridivesh Chief Financial Officer Grant or award · Stock Appreciation Rights +20,000 72,000
2025-07-29 Weinrot Daniel J General Counsel & Secretary Grant or award +52,500 70,578
2025-07-28 Sestanovich Elizabeth Chief People Officer Shares withheld for taxes −135 $7.51 $1K 20,317
2025-07-28 Coppola Brian Chief Ad Operations Officer Shares withheld for taxes −206 $7.51 $2K 27,443
2025-07-28 Kidambi Tridivesh Chief Financial Officer Shares withheld for taxes −224 $7.51 $2K 71,124
2025-07-28 Weinrot Daniel J General Counsel & Secretary Shares withheld for taxes −191 $7.51 $1K 18,078
2025-07-15 Sestanovich Elizabeth Chief People Officer Shares withheld for taxes −240 $6.33 $2K 20,452
2025-07-15 Coppola Brian Chief Ad Operations Officer Shares withheld for taxes −330 $6.33 $2K 27,649
2025-07-15 Kidambi Tridivesh Chief Financial Officer Shares withheld for taxes −300 $6.33 $2K 71,348
2025-07-15 Weinrot Daniel J General Counsel & Secretary Shares withheld for taxes −341 $6.33 $2K 18,269
2025-06-13 Civantos John Director Purchase +6,158 $4.01 $25K 55,613
2025-06-12 Civantos John Director Purchase +18,842 $3.89 $73K 49,455
2025-06-09 Kidambi Tridivesh Chief Financial Officer Sale · Warrants (right to buy) −15,000 $0.00 $60 0
2025-04-28 Sestanovich Elizabeth Chief People Officer Shares withheld for taxes −1,342 $0.41 $550 206,929
2025-04-28 Coppola Brian Chief Ad Operations Officer Shares withheld for taxes −2,052 $0.41 $841 279,799
2025-04-28 Kidambi Tridivesh Chief Financial Officer Shares withheld for taxes −2,237 $0.41 $917 716,488
2025-04-28 Weinrot Daniel J General Counsel & Secretary Shares withheld for taxes −1,905 $0.41 $781 186,106
2025-04-15 Sestanovich Elizabeth Chief People Officer Shares withheld for taxes −2,398 $0.31 $743 208,271
2025-04-15 Coppola Brian Chief Ad Operations Officer Shares withheld for taxes −3,300 $0.31 $1K 281,851

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