QUANTUM SI INC

Ticker: QSIAW CUSIP: 74765K113 Class: *W EXP 06/10/202

Holders for Q4 2025 Position Changes for Q4 2025

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

Increased Positions (1)

UBS Group AG
Value ($000) $0 (+39.2%) Shares 2,138 (+86.9%)

Decreased Positions (2)

SUSQUEHANNA INTERNATIONAL GROUP, LLP
Value ($000) $19 (-49.7%) Shares 95,131 (-34.7%)
JANE STREET GROUP, LLC
Value ($000) $3 (-26.5%) Shares 16,961 (-1.0%)