QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Headlands Technologies LLC's Holding History (CIK: 0001570271)

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

Q2 2025

Shares 9,322 Value ($000) $18 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 325 Value ($000) $0 Avg Close $1.92 Range $1.12 - $5.77

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	9,322	$18	$1.48	$1.02 - $2.15
Q1 2025	325	$0	$1.92	$1.12 - $5.77