QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Rubric Capital Management LP's Holding History (CIK: 0001687509)

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

Q4 2022

Shares 672,385 Value ($000) $1,230 Avg Close $2.58 Range $1.72 - $3.61

Q3 2022

Shares 672,385 Value ($000) $1,849 Avg Close $3.20 Range $2.31 - $4.43

Q2 2022

Shares 672,385 Value ($000) $1,560 Avg Close $3.83 Range $2.22 - $4.97

Q1 2022

Shares 672,385 Value ($000) $3,147 Avg Close $4.87 Range $3.72 - $8.30

Q4 2021

Shares 672,385 Value ($000) $5,292 Avg Close $7.53 Range $5.33 - $9.10

Q3 2021

Shares 672,385 Value ($000) $5,608 Avg Close $9.85 Range $7.43 - $14.17

Q2 2021

Shares 493,013 Value ($000) $6,044 Avg Close $10.48 Range $7.85 - $13.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	672,385	$1,230	$2.58	$1.72 - $3.61
Q3 2022	672,385	$1,849	$3.20	$2.31 - $4.43
Q2 2022	672,385	$1,560	$3.83	$2.22 - $4.97
Q1 2022	672,385	$3,147	$4.87	$3.72 - $8.30
Q4 2021	672,385	$5,292	$7.53	$5.33 - $9.10
Q3 2021	672,385	$5,608	$9.85	$7.43 - $14.17
Q2 2021	493,013	$6,044	$10.48	$7.85 - $13.23