QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q4 2025
Shares 468,174 Value ($000) $515 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 468,088 Value ($000) $660 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 431,447 Value ($000) $846 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 367,444 Value ($000) $441 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 308,021 Value ($000) $832 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 232,360 Value ($000) $205 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 260,442 Value ($000) $273 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 261,475 Value ($000) $515 Avg Close $1.75 Range $1.38 - $2.43
Q4 2023
Shares 260,595 Value ($000) $524 Avg Close $1.52 Range $1.12 - $2.31
Q3 2023
Shares 276,955 Value ($000) $460 Avg Close $2.41 Range $1.57 - $3.90
Q2 2023
Shares 261,577 Value ($000) $468 Avg Close $1.57 Range $1.36 - $1.94
Q1 2023
Shares 238,228 Value ($000) $419 Avg Close $1.97 Range $1.54 - $2.63
Q4 2022
Shares 238,228 Value ($000) $436 Avg Close $2.58 Range $1.72 - $3.61
Q3 2022
Shares 232,986 Value ($000) $641 Avg Close $3.20 Range $2.31 - $4.43
Q2 2022
Shares 232,709 Value ($000) $540 Avg Close $3.83 Range $2.22 - $4.97
Q1 2022
Shares 32,018 Value ($000) $150 Avg Close $4.87 Range $3.72 - $8.30
Q4 2021
Shares 32,018 Value ($000) $252 Avg Close $7.53 Range $5.33 - $9.10
Q3 2021
Shares 32,018 Value ($000) $268 Avg Close $9.85 Range $7.43 - $14.17