QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

RENAISSANCE TECHNOLOGIES LLC's Holding History (CIK: 0001037389)

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

Q2 2025

Shares 89,200 Value ($000) $175 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 871,756 Value ($000) $1,046 Avg Close $1.92 Range $1.12 - $5.77

Q4 2024

Shares 544,956 Value ($000) $1,471 Avg Close $1.17 Range $0.61 - $4.14

Q3 2024

Shares 41,556 Value ($000) $37 Avg Close $0.97 Range $0.79 - $1.26

Q2 2023

Shares 223,256 Value ($000) $0 Avg Close $1.57 Range $1.36 - $1.94

Q1 2023

Shares 112,856 Value ($000) $0 Avg Close $1.97 Range $1.54 - $2.63

Q4 2022

Shares 37,556 Value ($000) $0 Avg Close $2.58 Range $1.72 - $3.61

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	89,200	$175	$1.48	$1.02 - $2.15
Q1 2025	871,756	$1,046	$1.92	$1.12 - $5.77
Q4 2024	544,956	$1,471	$1.17	$0.61 - $4.14
Q3 2024	41,556	$37	$0.97	$0.79 - $1.26
Q2 2023	223,256	$0	$1.57	$1.36 - $1.94
Q1 2023	112,856	$0	$1.97	$1.54 - $2.63
Q4 2022	37,556	$0	$2.58	$1.72 - $3.61