QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

HSBC HOLDINGS PLC's Holding History (CIK: 0000873630)

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

Q2 2025

Shares 13,717 Value ($000) $27 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 13,987 Value ($000) $17 Avg Close $1.92 Range $1.12 - $5.77

Q4 2024

Shares 11,742 Value ($000) $35 Avg Close $1.17 Range $0.61 - $4.14

Q3 2024

Shares 12,398 Value ($000) $11 Avg Close $0.97 Range $0.79 - $1.26

Q2 2024

Shares 11,932 Value ($000) $12 Avg Close $1.60 Range $0.73 - $1.99

Q1 2024

Shares 16,260 Value ($000) $32 Avg Close $1.75 Range $1.38 - $2.43

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	13,717	$27	$1.48	$1.02 - $2.15
Q1 2025	13,987	$17	$1.92	$1.12 - $5.77
Q4 2024	11,742	$35	$1.17	$0.61 - $4.14
Q3 2024	12,398	$11	$0.97	$0.79 - $1.26
Q2 2024	11,932	$12	$1.60	$0.73 - $1.99
Q1 2024	16,260	$32	$1.75	$1.38 - $2.43