PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2025
Shares 540 Value ($000) $15 Avg Close $27.67 Range $23.55 - $32.31
Q2 2025
Shares 198 Value ($000) $0 Avg Close $18.93 Range $15.91 - $21.57
Q1 2025
Shares 109 Value ($000) $0 Avg Close $24.54 Range $18.50 - $29.50
Q4 2024
Shares 4,643 Value ($000) $0 Avg Close $30.15 Range $26.94 - $33.42
Q2 2024
Shares 308 Value ($000) $0 Avg Close $33.44 Range $29.21 - $37.16
Q1 2024
Shares 3,487 Value ($000) $0 Avg Close $32.80 Range $28.99 - $35.89
Q3 2022
Shares 248 Value ($000) $6 Avg Close $25.27 Range $20.16 - $30.31
Q1 2022
Shares 1,656 Value ($000) $46 Avg Close $27.92 Range $23.73 - $32.80
Q4 2021
Shares 5,503 Value ($000) $174 Avg Close $27.81 Range $22.46 - $33.78
Q3 2021
Shares 374 Value ($000) $6 Avg Close $20.60 Range $17.29 - $24.20
Q2 2021
Shares 374 Value ($000) $6 Avg Close $17.92 Range $16.70 - $19.76
Q2 2020
Shares 1,788 Value ($000) $34 Avg Close $16.25 Range $11.05 - $19.64
Q1 2020
Shares 64 Value ($000) $0 Avg Close $14.77 Range $8.61 - $18.41
Q3 2019
Shares 24,710 Value ($000) $322 Avg Close $12.62 Range $11.16 - $13.84
Q2 2019
Shares 32,023 Value ($000) $420 Avg Close $12.83 Range $11.77 - $14.00
Q1 2019
Shares 62,125 Value ($000) $767 Avg Close $11.05 Range $8.24 - $13.53
Q4 2018
Shares 32,461 Value ($000) $273 Avg Close $8.48 Range $7.56 - $9.45
Q3 2018
Shares 57,009 Value ($000) $514 Avg Close $10.06 Range $8.10 - $12.66
Q2 2018
Shares 3,045 Value ($000) $36 Avg Close $11.94 Range $9.62 - $13.84
Q4 2017
Shares 704 Value ($000) $11 Avg Close $16.06 Range $14.12 - $18.48
Q3 2017
Shares 94 Value ($000) $1 Avg Close $16.12 Range $14.11 - $20.10
Q2 2017
Shares 187 Value ($000) $3 Avg Close $18.56 Range $16.07 - $23.93
Q4 2015
Shares 400 Value ($000) $4 Avg Close $10.84 Range $9.68 - $11.76
Q3 2015
Shares 81 Value ($000) $0 Avg Close $12.57 Range $9.91 - $16.45
Q1 2015
Shares 89 Value ($000) $1 Avg Close $17.39 Range $13.31 - $18.80