PDF SOLUTIONS INC - Common Stock, $0.00015 par value (PDFS) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock, $0.00015 par value
Symbol
PDFS on Nasdaq
Shares outstanding
39,579,412
Price per share
$28.53
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
29,687,540
Total reported value
$766,532,444
% of total 13F portfolios
0.01%
Share change
+526,098
Value change
+$16,976,507
Number of holders
178
Price from insider filings
$28.53
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of PDF SOLUTIONS INC - Common Stock, $0.00015 par value (PDFS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
KIBARIAN JOHN KACHIG 6.5% $43,063,804 2,512,474 John Kachig Kibarian 12 Feb 2025
NEEDHAM INVESTMENT MANAGEMENT LLC 5.1% $52,118,961 2,018,550 NEEDHAM INVESTMENT MANAGEMENT L.L.C. 30 Sep 2025

As of 30 Sep 2025, 178 institutional investors reported holding 29,687,540 shares of PDF SOLUTIONS INC - Common Stock, $0.00015 par value (PDFS). This represents 75% of the company’s total 39,579,412 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of PDF SOLUTIONS INC - Common Stock, $0.00015 par value (PDFS) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 12% 4,863,204 +1.4% 0% $125,567,928
VANGUARD GROUP INC 8% 3,154,619 -0.91% 0% $81,452,263
NEEDHAM INVESTMENT MANAGEMENT LLC 5.1% 2,018,550 +5.5% 3.6% $52,118,961
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 3.4% 1,349,441 +14% 0.09% $34,842,567
STATE STREET CORP 2.9% 1,145,957 +0.76% 0% $29,588,610
Samjo Management, LLC 2.8% 1,120,719 +20% 11% $28,936,965
Ranger Investment Management, L.P. 2.7% 1,057,210 +1.1% 1.9% $27,297,162
EMERALD ADVISERS, LLC 2.4% 942,655 -1.2% 0.78% $24,339,352
DIMENSIONAL FUND ADVISORS LP 2% 811,293 -4.2% 0% $20,947,892
SNYDER CAPITAL MANAGEMENT L P 2% 800,357 -1.5% 0.39% $20,665,218
JANUS HENDERSON GROUP PLC 2% 783,865 -2.2% 0.01% $20,239,459
GEODE CAPITAL MANAGEMENT, LLC 1.9% 765,715 -2.4% 0% $19,773,819
Divisar Capital Management LLC 1.7% 684,082 +12% 4.8% $17,662,997
EMERALD MUTUAL FUND ADVISERS TRUST 1.5% 594,610 +2.3% 0.79% $15,352,830
WASATCH ADVISORS LP 1.4% 547,818 -54% 0.08% $14,144,661
Silverberg Bernstein Capital Management LLC 1.2% 458,783 +9.6% 7.2% $11,845,777
ArrowMark Colorado Holdings LLC 1.1% 451,788 +595% 0.22% $11,665,166
Connor, Clark & Lunn Investment Management Ltd. 1% 395,110 +16% 0.03% $10,201,740
Russell Investments Group, Ltd. 0.95% 374,251 +19% 0.01% $9,663,170
NORTHERN TRUST CORP 0.92% 363,789 -2.3% 0% $9,393,033
LOOMIS SAYLES & CO L P 0.92% 363,183 +774% 0.01% $9,377,384
MORGAN STANLEY 0.9% 357,269 -37% 0% $9,224,688
CANNELL CAPITAL LLC 0.85% 337,315 2.3% $8,709,473
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.75% 298,547 +3.5% 0% $7,708,484
Squarepoint Ops LLC 0.64% 254,511 +379% 0.01% $6,571,474

Institutional Holders of PDF SOLUTIONS INC - Common Stock, $0.00015 par value (PDFS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 598,608 $17,198,088 +$386,645 $28.53 16
2025 Q3 29,687,540 $766,532,444 +$16,976,507 $25.82 178
2025 Q2 29,182,133 $623,934,135 +$32,853,683 $21.38 170
2025 Q1 27,684,087 $529,128,749 -$24,654,495 $19.11 165
2024 Q4 28,285,917 $765,982,031 -$5,916,342 $27.08 176
2024 Q3 28,379,883 $899,032,078 +$11,080,121 $31.68 174
2024 Q2 27,942,392 $1,016,511,997 +$153,168 $36.38 171
2024 Q1 27,969,223 $941,699,303 +$4,451,044 $33.67 178
2023 Q4 33,060 $1,062,548 -$653,567 $32.14 2
2023 Q3 27,528,387 $891,919,824 +$19,211,972 $32.40 182
2023 Q2 27,636,462 $1,246,258,413 +$20,661,757 $45.10 178
2023 Q1 27,209,098 $1,147,239,485 +$42,329,074 $42.40 176
2022 Q4 26,399,028 $752,939,097 +$5,082,930 $28.52 149
2022 Q3 26,242,273 $643,675,595 +$8,903,348 $24.53 129
2022 Q2 25,492,394 $548,406,005 -$24,512,376 $21.51 120
2022 Q1 26,662,883 $742,858,754 +$6,780,038 $27.87 123
2021 Q4 26,373,155 $837,986,528 +$8,135,462 $31.79 130
2021 Q3 25,968,482 $598,289,130 -$2,249,688 $23.04 109
2021 Q2 27,979,833 $508,765,553 +$7,979,091 $18.18 112
2021 Q1 25,705,514 $457,084,392 -$4,233,071 $17.78 101
2020 Q4 25,690,621 $554,934,922 +$1,139,287 $21.60 111
2020 Q3 24,720,172 $462,640,911 -$11,035,139 $18.71 108
2020 Q2 26,870,123 $528,689,338 +$19,140,391 $19.56 106
2020 Q1 24,293,754 $284,714,617 -$9,274,183 $11.72 91
2019 Q4 24,827,672 $419,313,163 +$9,240,407 $16.89 103
2019 Q3 24,576,511 $321,212,735 -$7,244,892 $13.07 100
2019 Q2 25,404,803 $333,292,768 +$43,724,373 $13.12 100
2019 Q1 26,901,793 $332,264,630 -$7,708,629 $12.35 94
2018 Q4 27,897,716 $235,135,597 -$7,268,713 $8.43 100
2018 Q3 27,115,844 $244,827,690 -$20,039,286 $9.03 97
2018 Q2 28,007,789 $335,519,345 +$3,666,160 $11.98 99
2018 Q1 27,804,612 $324,155,212 -$29,898,131 $11.66 96
2017 Q4 29,825,418 $468,254,949 +$34,506,263 $15.70 115
2017 Q3 27,464,809 $424,901,516 +$16,599,475 $15.49 91
2017 Q2 26,376,045 $433,888,523 +$18,228,743 $16.45 91
2017 Q1 24,842,839 $561,948,207 +$51,629,998 $22.62 105
2016 Q4 24,285,453 $547,707,790 +$16,739,643 $22.55 102
2016 Q3 23,329,595 $425,340,503 +$11,510,479 $18.17 94
2016 Q2 23,022,538 $322,073,730 -$7,311,582 $13.99 106
2016 Q1 22,831,622 $305,487,000 +$11,158,713 $13.38 106
2015 Q4 22,922,261 $248,704,479 -$5,604,613 $10.84 111
2015 Q3 23,487,947 $234,885,350 -$20,772,644 $10.00 107
2015 Q2 23,553,813 $376,858,056 +$5,506,812 $16.00 101
2015 Q1 23,879,371 $427,945,895 +$24,507,063 $17.92 98
2014 Q4 22,519,632 $334,795,178 +$185,594 $14.86 91
2014 Q3 22,767,471 $287,111,672 -$11,105,255 $12.61 103
2014 Q2 22,392,415 $474,671,353 +$18,837,259 $21.22 108
2014 Q1 21,429,570 $389,318,093 -$1,156,483 $18.17 109