QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

FMR LLC's Holding History (CIK: 0000315066)

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

Q4 2025
Shares 97,925 Value ($000) $108 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 90,520 Value ($000) $128 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 18,520 Value ($000) $36 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 79,623 Value ($000) $96 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 80,321 Value ($000) $217 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 21,111 Value ($000) $19 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 939 Value ($000) $1 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 4,295 Value ($000) $8 Avg Close $1.75 Range $1.38 - $2.43
Q4 2023
Shares 5,288 Value ($000) $11 Avg Close $1.52 Range $1.12 - $2.31
Q3 2023
Shares 6,747 Value ($000) $11 Avg Close $2.41 Range $1.57 - $3.90
Q2 2023
Shares 3,534 Value ($000) $6 Avg Close $1.57 Range $1.36 - $1.94
Q1 2023
Shares 1,008 Value ($000) $2 Avg Close $1.97 Range $1.54 - $2.63
Q4 2022
Shares 1,134 Value ($000) $2 Avg Close $2.58 Range $1.72 - $3.61
Q3 2022
Shares 4,654 Value ($000) $13 Avg Close $3.20 Range $2.31 - $4.43
Q2 2022
Shares 262 Value ($000) $0 Avg Close $3.83 Range $2.22 - $4.97
Q4 2021
Shares 16 Value ($000) $0 Avg Close $7.53 Range $5.33 - $9.10