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System1, Inc.

SST
Exchange
NYSE
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; 21 institutions reported holding it in 13F filings for Q2 2026, worth $1.38M in total; no superinvestor holds it.

Other share classesSSTPW

13F holders, Q3 2023

Institutional positions in System1, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
48
+4 vs. Q2 2023
Shares held
34.3M
−47.8K (−0.1%) vs. Q2 2023
Total value
$41.6M
−$113.2M (−73.1%) vs. Q2 2023
New holders
7
18 more added
Sold out
3
12 more reduced

Compare with Q2 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SST on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2023: 48 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 1 institutionQ1 2022: 31 institutionsQ2 2022: 37 institutionsQ3 2022: 38 institutionsQ4 2022: 30 institutionsQ1 2023: 34 institutionsQ2 2023: 44 institutionsQ3 2023: 48 institutionsQ4 2023: 49 institutionsQ1 2024: 47 institutionsQ2 2024: 60 institutionsQ3 2024: 60 institutionsQ4 2024: 59 institutionsQ1 2025: 55 institutionsQ2 2025: 36 institutionsQ3 2025: 30 institutionsQ4 2025: 24 institutionsQ1 2026: 25 institutionsQ2 2026: 21 institutions
Value heldQ3 2023: $41.6M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $9.79MQ1 2022: $421.1MQ2 2022: $193.0MQ3 2022: $182.2MQ4 2022: $133.5MQ1 2023: $138.1MQ2 2023: $154.8MQ3 2023: $41.6MQ4 2023: $76.8MQ1 2024: $69.4MQ2 2024: $53.0MQ3 2024: $39.1MQ4 2024: $31.6MQ1 2025: $13.2MQ2 2025: $17.9MQ3 2025: $22.5MQ4 2025: $3.20MQ1 2026: $2.50MQ2 2026: $1.38M
Institutions holding SST and their total value by quarter
QuarterHoldersValue
Q2 202621$1.38M
Q1 202625$2.50M
Q4 202524$3.20M
Q3 202530$22.5M
Q2 202536$17.9M
Q1 202555$13.2M
Q4 202459$31.6M
Q3 202460$39.1M
Q2 202460$53.0M
Q1 202447$69.4M
Q4 202349$76.8M
Q3 202348$41.6M
Q2 202344$154.8M
Q1 202334$138.1M
Q4 202230$133.5M
Q3 202238$182.2M
Q2 202237$193.0M
Q1 202231$421.1M
Q4 20211$9.79M
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding System1, Inc.; share changes are against Q2 2023.

Institutions holding SST in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Cannae Holdings, Inc.27,012,794$32.7M2.17%−110,001−0.4%Reduced
BlackRock Inc.1,933,143$2.34M0.00%+336,945+21.1%Added
Bank of America Corp1,708,457$2.07M0.00%−459,704−21.2%Reduced
Vanguard Group Inc1,248,054$1.51M0.00%+48,772+4.1%Added
Geode Capital Management, LLC492,215$595.7K0.00%+58,014+13.4%Added
State Street Corp381,138$461.2K0.00%+9,650+2.6%Added
Northern Trust Corp248,352$300.5K0.00%+56,616+29.5%Added
Pacific Ridge Capital Partners, LLC233,789$282.9K0.07%−1,010−0.4%Reduced
Brighton Jones LLC218,104$263.9K0.01%−17,287−7.3%Reduced
Charles Schwab Investment Management Inc174,063$210.6K0.00%+14,072+8.8%Added
Cerity Partners LLC118,533$143.4K0.00%00.0%Unchanged
Bank of New York Mellon Corp94,826$114.7K0.00%+2,200+2.4%Added
Quarry LP60,500$73.2K0.05%00.0%Unchanged
Morgan Stanley54,519$66.0K0.00%+23,266+74.4%Added
Nuveen Asset Management, LLC34,112$41.3K0.00%00.0%Unchanged
Rhumbline Advisers27,451$33.2K0.00%+3,169+13.1%Added
Goldman Sachs Group Inc24,263$29.4K0.00%−10,351−29.9%Reduced
New York State Common Retirement Fund22,417$27.1K0.00%+217+1.0%Added
Susquehanna International Group, LLP22,084$26.7K0.00%−29,778−57.4%Reduced
JPMorgan Chase & Co21,573$26.1K0.00%+529+2.5%Added
UBS Group AG18,239$22.1K0.00%+3,911+27.3%Added
American International Group, Inc.16,331$19.8K0.00%+4,407+37.0%Added
SEI Investments Co16,217$19.6K0.00%+16,217New
SG Americas Securities, LLC16,065$19.0K0.00%+16,065New
Price T Rowe Associates Inc14,352$18.0K0.00%00.0%Unchanged
Jane Street Group, LLC12,709$15.4K0.00%−10,600−45.5%Reduced
Sea Otter Advisors LLC12,500$15.1K0.01%+6,500+108.3%Added
Barclays PLC11,820$14.3K0.00%+256+2.2%Added
CSS LLC11,784$14.3K0.00%+11,784New
Arbor Trust Wealth Advisors, LLC10,950$13.3K0.01%00.0%Unchanged
Two Sigma Securities, LLC10,416$12.6K0.00%+10,416New
Royal Bank of Canada8,651$11.0K0.00%+2,910+50.7%Added
FMR LLC8,643$10.5K0.00%+8,155+1,671.1%Added
Tower Research Capital LLC (TRC)8,526$10.3K0.00%+7,188+537.2%Added
Wells Fargo & Company8,034$9.72K0.00%−1,377−14.6%Reduced
California State Teachers Retirement System7,221$8.74K0.00%−1,019−12.4%Reduced
Cutler Group LP6,500$7.00K0.00%−2,600−28.6%Reduced
Amalgamated Bank2,410$3.00K0.00%00.0%Unchanged
Legal & General Group Plc2,327$2.82K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2,046$2.48K0.00%00.0%Unchanged
Federated Hermes, Inc.1,376$1.67K0.00%+1,376New
Advisor Group Holdings, Inc.1,100$1.33K0.00%−185−14.4%Reduced
Citadel Advisors LLC950$1.15K0.00%+950New
CWM, LLC1,072$1.00K0.00%00.0%Unchanged
West Branch Capital LLC115$1400.00%00.0%Unchanged
Citigroup Inc16$200.00%−7,361−99.8%Reduced
DuPont Capital Management Corp1$10.00%00.0%Unchanged
Capital Advisors, Ltd. LLC400$00.00%+400New
Group One Trading, L.P.0$00.00%−23,971−100.0%Sold out
Mirae Asset Global Investments Co., Ltd.0$00.00%−15,914−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−648−100.0%Sold out