QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM's Holding History (CIK: 0000938076)

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

Q4 2025

Shares 41,282 Value ($000) $45 Avg Close $1.63 Range $1.07 - $3.10

Q2 2025

Shares 12,300 Value ($000) $24 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 12,300 Value ($000) $15 Avg Close $1.92 Range $1.12 - $5.77

Q4 2023

Shares 29,040 Value ($000) $58 Avg Close $1.52 Range $1.12 - $2.31

Q3 2023

Shares 35,636 Value ($000) $59 Avg Close $2.41 Range $1.57 - $3.90

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	41,282	$45	$1.63	$1.07 - $3.10
Q2 2025	12,300	$24	$1.48	$1.02 - $2.15
Q1 2025	12,300	$15	$1.92	$1.12 - $5.77
Q4 2023	29,040	$58	$1.52	$1.12 - $2.31
Q3 2023	35,636	$59	$2.41	$1.57 - $3.90