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System1, Inc.

SSTPW
Exchange
OTC
Industry
Services-Computer Programming, Data Processing, Etc.
SEC CIK
0001805833

No open-market purchases or sales by System1, Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Other share classesSST

Q4 2021 vs. Q3 2021

How the institutions holding System1, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of SSTPW: Q3 2021 compared with Q4 2021
MeasureQ3 2021Q4 2021Change
Holders3635−1
Shares7.62M8.65M+1.03M (+13.6%)
Value$13.9M$12.5M−$1.49M (−10.7%)

New holders (6)

Institutions that held System1, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to SSTPW in Q4 2021
InstitutionSharesValue% of portfolio
LH Capital Markets, LLC1,700,000$1.96M0.89%
Difesa Capital Management, LP256,700$295.0K0.21%
HBK Investments L P70,000$81.0K0.00%
Mint Tower Capital Management B.V.66,666$77.0K0.01%
Integrity Capital Management (HK) Ltd50,000$58.0K0.19%
K.J. Harrison & Partners Inc10,000$12.0K0.00%

Sold out (7)

Institutions that held System1, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of SSTPW in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Advisory Research Inc270,000$391.0K
Antara Capital LP200,000$290.0K
Sage Rock Capital Management LP197,430$286.0K
Glazer Capital, LLC73,070$106.0K
PEAK6 Investments LLC50,000$73.0K
CSS LLC43,689$63.0K
Jefferies Group LLC12,711$18.4K