System1
24 hedge funds and large institutions have $3.2M invested in System1 in 2025 Q4 according to their latest regulatory filings, with 0 funds opening new positions, 4 increasing their positions, 14 reducing their positions, and 6 closing their positions.
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
20% less funds holding
Funds holding: 30 → 24 (-6)
29.72% less ownership
Funds ownership: 39.75% → 10.04% (-30%)
71% less repeat investments, than reductions
Existing positions increased: 4 | Existing positions reduced: 14
86% less capital invested
Capital invested by funds: $22.5M → $3.2M (-$19.3M)
100% less first-time investments, than exits
New positions opened: 0 | Existing positions closed: 6
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$14K |
| 2 |
Renaissance Technologies
New York
|
+$7.75K |
| 3 |
TRCT
Tower Research Capital (TRC)
New York
|
+$1.8K |
| 4 |
BlackRock
New York
|
+$191 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CH
Cannae Holdings
Las Vegas,
Nevada
|
-$12.1M |
| 2 |
Marshall Wace
London,
United Kingdom
|
-$255K |
| 3 |
Millennium Management
New York
|
-$16.1K |
| 4 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$6.65K |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
-$4.21K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
26
Barclays
London,
United Kingdom
| – | -$605 | -86 | Closed |
|
|
GI
27
GAMMA Investing
Foster City,
California
| – | -$535 | -76 | Closed |
|
28
Nisa Investment Advisors
St. Louis,
Missouri
| – | -$451 | -64 | Closed |
|
29
Citigroup
New York
| – | -$267 | -38 | Closed |
|
30
Carson Wealth (CWM LLC)
Omaha,
Nebraska
| – | -$67 | -13 | -10% |
|
SST Hedge Fund Activity: Q4 2025 in Review
24 of the 8,238 institutional investors tracked by Wall St. Rank reported a position in System1 (SST) for Q4 2025, worth a combined $3.2M — down 86% from $22.5M a quarter earlier.
Sellers outnumbered buyers: 6 funds closed out of SST and 0 opened new positions — a net loss of 6 holders — while 14 trimmed existing stakes and 4 added.
The largest buyer was Citadel Advisors, adding an estimated $14K. The largest seller was Cannae Holdings, cutting an estimated $12.1M.
- 24 institutional investors held System1 (SST) as of Q4 2025, down from 30 in Q3 2025.
- Funds reported $3.2M of System1 stock for Q4 2025, down 86% quarter-over-quarter.
- 0 funds opened new System1 positions in Q4 2025 and 6 closed out, a net change of -6 holders.
- The largest System1 buyer in Q4 2025 was Citadel Advisors, an estimated $14K added.
- The largest System1 seller in Q4 2025 was Cannae Holdings, an estimated $12.1M sold.
Based on aggregated 13F filings for Q4 2025.