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

Historical Holders 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
+$16,976,508
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% $46,631,517 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, PDF SOLUTIONS INC - Common Stock, $0.00015 par value (PDFS) has 178 institutional shareholders filing 13F forms. They hold 29,687,540 shares. of 39,579,412 outstanding shares (75%) .

Top 25 institutional shareholders own 61% of the company.

Filer Ownership Nb Shares 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 Investors
2025 Q4 69,770 $2,048,233 -$128,770 $28.53 7
2025 Q3 29,687,540 $766,532,444 +$16,976,508 $25.82 178
2025 Q2 29,182,133 $623,934,135 +$32,853,682 $21.38 170
2025 Q1 27,684,187 $529,130,751 -$24,654,440 $19.11 166
2024 Q4 28,286,067 $765,983,933 -$5,912,370 $27.08 176
2024 Q3 28,379,883 $899,031,794 +$11,152,871 $31.68 174
2024 Q2 27,940,099 $1,016,428,909 -$114,328 $36.38 171
2024 Q1 27,969,223 $941,698,899 -$4,669,737 $33.67 177
2023 Q4 28,171,303 $907,840,658 +$10,346,518 $32.14 198
2023 Q3 27,528,387 $891,920,169 +$19,487,457 $32.40 182
2023 Q2 27,636,462 $1,246,258,580 +$20,663,066 $45.10 178
2023 Q1 27,224,327 $1,147,884,925 +$42,362,861 $42.40 177
2022 Q4 26,425,426 $753,692,408 +$5,305,861 $28.52 150
2022 Q3 26,260,854 $644,131,387 +$8,738,829 $24.53 130
2022 Q2 25,914,202 $557,479,005 -$20,813,005 $21.51 122
2022 Q1 26,662,929 $742,859,754 +$6,779,478 $27.87 124
2021 Q4 26,373,205 $837,988,528 +$7,977,481 $31.79 131
2021 Q3 25,963,918 $598,205,130 -$2,252,441 $23.04 105
2021 Q2 27,979,756 $508,764,553 +$7,743,858 $18.18 111
2021 Q1 25,705,304 $457,080,392 -$4,341,690 $17.78 100
2020 Q4 25,770,826 $556,666,922 +$1,267,637 $21.60 114
2020 Q3 24,747,224 $463,146,911 -$10,982,606 $18.71 110
2020 Q2 26,872,651 $528,739,338 +$19,095,756 $19.56 108
2020 Q1 24,324,729 $285,077,617 -$9,454,074 $11.72 93
2019 Q4 24,870,272 $420,032,163 +$9,442,045 $16.89 105
2019 Q3 24,918,463 $325,681,735 -$5,955,613 $13.07 101
2019 Q2 25,404,860 $333,293,768 +$21,916,764 $13.12 101
2019 Q1 26,970,253 $333,109,630 -$9,338,102 $12.35 97
2018 Q4 27,944,449 $235,528,597 +$2,613,633 $8.43 102
2018 Q3 27,206,503 $245,646,690 -$19,015,675 $9.03 98
2018 Q2 28,113,210 $336,782,345 +$3,676,289 $11.98 101
2018 Q1 27,819,767 $324,331,212 -$29,776,685 $11.66 98
2017 Q4 29,825,418 $468,254,949 +$34,508,302 $15.70 113
2017 Q3 27,623,054 $427,351,516 +$17,148,079 $15.49 93
2017 Q2 26,498,704 $435,904,523 +$19,889,042 $16.45 92
2017 Q1 24,842,839 $561,948,207 +$51,629,938 $22.62 105
2016 Q4 24,285,453 $547,718,779 +$16,704,410 $22.55 102
2016 Q3 23,329,595 $425,340,503 +$11,510,613 $18.17 94
2016 Q2 23,022,628 $322,074,730 -$7,313,743 $13.99 107
2016 Q1 23,149,566 $309,741,000 +$4,242,444 $13.38 107
2015 Q4 22,922,543 $248,707,479 -$5,672,813 $10.84 112
2015 Q3 23,490,331 $234,908,350 -$15,522,406 $10.00 107
2015 Q2 23,886,043 $382,174,056 -$966,668 $16.00 102
2015 Q1 23,879,460 $427,946,895 +$24,508,786 $17.92 98
2014 Q4 22,564,876 $335,468,178 -$513,284 $14.86 91
2014 Q3 22,927,887 $289,134,672 -$10,370,911 $12.61 105
2014 Q2 22,392,415 $474,671,353 +$18,839,521 $21.22 108
2014 Q1 21,563,192 $391,747,093 +$564,854 $18.17 110