PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q4 2025

Shares 62,400 Value ($000) $1,780 Avg Close $27.67 Range $23.55 - $32.31

Q3 2025

Shares 60,100 Value ($000) $1,552 Avg Close $21.84 Range $18.12 - $26.59

Q2 2025

Shares 60,100 Value ($000) $1,285 Avg Close $18.93 Range $15.91 - $21.57

Q1 2025

Shares 60,100 Value ($000) $1,149 Avg Close $24.54 Range $18.50 - $29.50

Q4 2024

Shares 61,000 Value ($000) $1,652 Avg Close $30.15 Range $26.94 - $33.42

Q3 2024

Shares 60,000 Value ($000) $1,901 Avg Close $32.46 Range $27.69 - $39.70

Q2 2024

Shares 60,800 Value ($000) $2,212 Avg Close $33.44 Range $29.21 - $37.16

Q1 2024

Shares 60,100 Value ($000) $2,024 Avg Close $32.80 Range $28.99 - $35.89

Q4 2023

Shares 60,100 Value ($000) $1,932 Avg Close $30.32 Range $26.12 - $34.09

Q3 2023

Shares 66,600 Value ($000) $2,158 Avg Close $38.29 Range $30.80 - $48.02

Q2 2023

Shares 65,800 Value ($000) $2,968 Avg Close $40.80 Range $32.25 - $45.80

Q1 2023

Shares 64,500 Value ($000) $2,735 Avg Close $35.04 Range $27.23 - $42.50

Q4 2022

Shares 71,400 Value ($000) $2,036 Avg Close $27.01 Range $21.36 - $32.56

Q3 2022

Shares 70,700 Value ($000) $1,734 Avg Close $25.27 Range $20.16 - $30.31

Q2 2022

Shares 70,700 Value ($000) $1,521 Avg Close $23.11 Range $19.34 - $28.11

Q1 2022

Shares 70,700 Value ($000) $1,970 Avg Close $27.92 Range $23.73 - $32.80

Q4 2021

Shares 65,600 Value ($000) $2,085 Avg Close $27.81 Range $22.46 - $33.78

Q3 2021

Shares 64,600 Value ($000) $1,488 Avg Close $20.60 Range $17.29 - $24.20

Q2 2021

Shares 64,600 Value ($000) $1,174 Avg Close $17.92 Range $16.70 - $19.76

Q1 2021

Shares 75,400 Value ($000) $1,341 Avg Close $19.82 Range $16.44 - $23.50

Q4 2020

Shares 74,300 Value ($000) $1,605 Avg Close $20.99 Range $18.51 - $23.42

Q3 2020

Shares 66,900 Value ($000) $1,252 Avg Close $20.60 Range $18.18 - $26.42

Q2 2020

Shares 64,900 Value ($000) $1,269 Avg Close $16.25 Range $11.05 - $19.64

Q1 2020

Shares 52,800 Value ($000) $619 Avg Close $14.77 Range $8.61 - $18.41

Q4 2019

Shares 52,800 Value ($000) $892 Avg Close $15.34 Range $12.53 - $17.42

Q3 2019

Shares 51,100 Value ($000) $668 Avg Close $12.62 Range $11.16 - $13.84

Q2 2019

Shares 51,100 Value ($000) $670 Avg Close $12.83 Range $11.77 - $14.00

Q1 2019

Shares 49,200 Value ($000) $608 Avg Close $11.05 Range $8.24 - $13.53

Q4 2018

Shares 49,200 Value ($000) $415 Avg Close $8.48 Range $7.56 - $9.45

Q3 2018

Shares 49,200 Value ($000) $444 Avg Close $10.06 Range $8.10 - $12.66

Q2 2018

Shares 49,200 Value ($000) $589 Avg Close $11.94 Range $9.62 - $13.84

Q1 2018

Shares 49,200 Value ($000) $574 Avg Close $13.29 Range $11.07 - $16.76

Q4 2017

Shares 43,600 Value ($000) $685 Avg Close $16.06 Range $14.12 - $18.48

Q3 2017

Shares 43,600 Value ($000) $675 Avg Close $16.12 Range $14.11 - $20.10

Q2 2017

Shares 43,600 Value ($000) $717 Avg Close $18.56 Range $16.07 - $23.93

Q1 2017

Shares 43,600 Value ($000) $986 Avg Close $22.28 Range $21.03 - $23.40

Q4 2016

Shares 43,600 Value ($000) $983 Avg Close $20.91 Range $17.45 - $24.44

Q3 2016

Shares 43,600 Value ($000) $792 Avg Close $16.29 Range $13.48 - $18.18

Q2 2016

Shares 43,600 Value ($000) $610 Avg Close $13.59 Range $12.09 - $15.25

Q1 2016

Shares 43,600 Value ($000) $563 Avg Close $10.95 Range $8.70 - $14.73

Q4 2015

Shares 35,500 Value ($000) $385 Avg Close $10.84 Range $9.68 - $11.76

Q3 2015

Shares 35,500 Value ($000) $355 Avg Close $12.57 Range $9.91 - $16.45

Q2 2015

Shares 31,000 Value ($000) $496 Avg Close $17.19 Range $14.76 - $19.52

Q1 2015

Shares 31,000 Value ($000) $556 Avg Close $17.39 Range $13.31 - $18.80

Q4 2014

Shares 29,200 Value ($000) $434 Avg Close $13.09 Range $11.62 - $15.24

Q3 2014

Shares 29,200 Value ($000) $368 Avg Close $19.84 Range $12.26 - $22.66

Q2 2014

Shares 29,200 Value ($000) $620 Avg Close $19.12 Range $16.60 - $21.77

Q1 2014

Shares 29,200 Value ($000) $531 Avg Close $22.07 Range $17.21 - $26.73

Q4 2013

Shares 22,400 Value ($000) $574 Avg Close $22.99 Range $20.12 - $25.90

Q3 2013

Shares 22,400 Value ($000) $476 Avg Close $20.57 Range $18.09 - $22.20

Q2 2013

Shares 23,600 Value ($000) $435 Avg Close $17.41 Range $14.95 - $19.03

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	62,400	$1,780	$27.67	$23.55 - $32.31
Q3 2025	60,100	$1,552	$21.84	$18.12 - $26.59
Q2 2025	60,100	$1,285	$18.93	$15.91 - $21.57
Q1 2025	60,100	$1,149	$24.54	$18.50 - $29.50
Q4 2024	61,000	$1,652	$30.15	$26.94 - $33.42
Q3 2024	60,000	$1,901	$32.46	$27.69 - $39.70
Q2 2024	60,800	$2,212	$33.44	$29.21 - $37.16
Q1 2024	60,100	$2,024	$32.80	$28.99 - $35.89
Q4 2023	60,100	$1,932	$30.32	$26.12 - $34.09
Q3 2023	66,600	$2,158	$38.29	$30.80 - $48.02
Q2 2023	65,800	$2,968	$40.80	$32.25 - $45.80
Q1 2023	64,500	$2,735	$35.04	$27.23 - $42.50
Q4 2022	71,400	$2,036	$27.01	$21.36 - $32.56
Q3 2022	70,700	$1,734	$25.27	$20.16 - $30.31
Q2 2022	70,700	$1,521	$23.11	$19.34 - $28.11
Q1 2022	70,700	$1,970	$27.92	$23.73 - $32.80
Q4 2021	65,600	$2,085	$27.81	$22.46 - $33.78
Q3 2021	64,600	$1,488	$20.60	$17.29 - $24.20
Q2 2021	64,600	$1,174	$17.92	$16.70 - $19.76
Q1 2021	75,400	$1,341	$19.82	$16.44 - $23.50
Q4 2020	74,300	$1,605	$20.99	$18.51 - $23.42
Q3 2020	66,900	$1,252	$20.60	$18.18 - $26.42
Q2 2020	64,900	$1,269	$16.25	$11.05 - $19.64
Q1 2020	52,800	$619	$14.77	$8.61 - $18.41
Q4 2019	52,800	$892	$15.34	$12.53 - $17.42
Q3 2019	51,100	$668	$12.62	$11.16 - $13.84
Q2 2019	51,100	$670	$12.83	$11.77 - $14.00
Q1 2019	49,200	$608	$11.05	$8.24 - $13.53
Q4 2018	49,200	$415	$8.48	$7.56 - $9.45
Q3 2018	49,200	$444	$10.06	$8.10 - $12.66
Q2 2018	49,200	$589	$11.94	$9.62 - $13.84
Q1 2018	49,200	$574	$13.29	$11.07 - $16.76
Q4 2017	43,600	$685	$16.06	$14.12 - $18.48
Q3 2017	43,600	$675	$16.12	$14.11 - $20.10
Q2 2017	43,600	$717	$18.56	$16.07 - $23.93
Q1 2017	43,600	$986	$22.28	$21.03 - $23.40
Q4 2016	43,600	$983	$20.91	$17.45 - $24.44
Q3 2016	43,600	$792	$16.29	$13.48 - $18.18
Q2 2016	43,600	$610	$13.59	$12.09 - $15.25
Q1 2016	43,600	$563	$10.95	$8.70 - $14.73
Q4 2015	35,500	$385	$10.84	$9.68 - $11.76
Q3 2015	35,500	$355	$12.57	$9.91 - $16.45
Q2 2015	31,000	$496	$17.19	$14.76 - $19.52
Q1 2015	31,000	$556	$17.39	$13.31 - $18.80
Q4 2014	29,200	$434	$13.09	$11.62 - $15.24
Q3 2014	29,200	$368	$19.84	$12.26 - $22.66
Q2 2014	29,200	$620	$19.12	$16.60 - $21.77
Q1 2014	29,200	$531	$22.07	$17.21 - $26.73
Q4 2013	22,400	$574	$22.99	$20.12 - $25.90
Q3 2013	22,400	$476	$20.57	$18.09 - $22.20
Q2 2013	23,600	$435	$17.41	$14.95 - $19.03