SYSTEM1 INC

Ticker: SST CUSIP: 87200P208 Class: Common Stock

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

Increased Positions (3)

CITADEL ADVISORS LLC
Value ($000) $50 (-29.4%) Shares 12,759 (+26.9%)
RENAISSANCE TECHNOLOGIES LLC
Value ($000) $73 (-39.4%) Shares 18,620 (+8.8%)
Tower Research Capital LLC (TRC)
Value ($000) $4 (-14.0%) Shares 988 (+54.4%)

Decreased Positions (11)

CANNAE HOLDINGS, INC.
Value ($000) $1,399 (-92.6%) Shares 356,797 (-86.8%)
MILLENNIUM MANAGEMENT LLC
Value ($000) $139 (-48.8%) Shares 35,449 (-8.1%)
ROYAL BANK OF CANADA
Value ($000) $0 (-100.0%) Shares 108 (-92.3%)
FMR LLC
Value ($000) $4 (-68.0%) Shares 1,105 (-42.4%)
MORGAN STANLEY
Value ($000) $2 (-77.7%) Shares 439 (-59.9%)
XTX Topco Ltd
Value ($000) $49 (-44.9%) Shares 12,376 (-1.0%)
GROUP ONE TRADING, L.P.
Value ($000) $3 (-48.8%) Shares 663 (-8.0%)
BNP PARIBAS ARBITRAGE, SA
Value ($000) $0 (-60.8%) Shares 86 (-29.5%)
UBS Group AG
Value ($000) $2 (-46.7%) Shares 417 (-4.4%)
JPMORGAN CHASE & CO
Value ($000) $0 (-47.9%) Shares 42 (-6.7%)
CWM, LLC
Value ($000) $0 (-100.0%) Shares 115 (-10.2%)

Exited Positions (5)

MARSHALL WACE, LLP
Value ($000) $255 Shares 36,271
GAMMA Investing LLC
Value ($000) $1 Shares 76
NISA INVESTMENT ADVISORS, LLC
Value ($000) $0 Shares 64
CITIGROUP INC
Value ($000) $0 Shares 38
West Branch Capital LLC
Value ($000) $0 Shares 115