Security Snapshot

PDF SOLUTIONS INC - Common Stock (PDFS) Institutional Ownership

CUSIP: 693282105

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

185

Shares (Excl. Options)

30,500,909

Price

$28.53

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Type / Class
Equity / Common Stock
Symbol
PDFS on Nasdaq
Shares outstanding
39,422,677
Price per share
$38.83
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
30,500,909
Total reported value
$870,334,237
% of total 13F portfolios
0.01%
Share change
+570,818
Value change
+$18,721,068
Number of holders
185
Price from insider filings
$38.83
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • PDFS - PDF SOLUTIONS INC - Common Stock is tracked under CUSIP 693282105.
  • 185 institutions reported positions in Q4 2025.
  • 2 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 185 to 123 between Q4 2025 and Q1 2026.
  • Reported value moved from $870,334,237 to $562,156,257.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 185 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 693282105?
CUSIP 693282105 identifies PDFS - PDF SOLUTIONS INC - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of PDF SOLUTIONS INC - Common Stock (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% 0% $80,871,679 +$1,578,000 2,562,474 +2% KIBARIAN JOHN KACHIG 31 Dec 2025
NEEDHAM INVESTMENT MANAGEMENT LLC 4.9% -4% $62,015,400 -$1,690,038 1,965,000 -2.7% NEEDHAM INVESTMENT MANAGEMENT L.L.C. 31 Dec 2025

As of 31 Dec 2025, 185 institutional investors reported holding 30,500,909 shares of PDF SOLUTIONS INC - Common Stock (PDFS). This represents 77% of the company’s total 39,422,677 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of PDF SOLUTIONS INC - Common Stock (PDFS) together control 64% 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% 4,885,246 +0.45% 0% $139,376,067
VANGUARD GROUP INC 7.8% 3,089,519 -2.1% 0% $88,143,977
NEEDHAM INVESTMENT MANAGEMENT LLC 5% 1,965,000 -2.7% 3.5% $56,061,450
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 3.4% 1,358,481 +0.67% 0.11% $38,757,463
Ranger Investment Management, L.P. 3% 1,170,014 +11% 2.3% $33,380,499
STATE STREET CORP 2.9% 1,151,576 +0.49% 0% $32,854,463
Samjo Management, LLC 2.9% 1,151,019 +2.7% 13% $32,838,572
SNYDER CAPITAL MANAGEMENT L P 2.4% 955,435 +19% 0.51% $27,258,561
EMERALD ADVISERS, LLC 2.4% 943,372 +0.08% 0.83% $26,914,403
JANUS HENDERSON GROUP PLC 2.3% 912,135 +16% 0.01% $26,023,469
DIMENSIONAL FUND ADVISORS LP 2% 800,963 -1.3% 0% $22,852,857
GEODE CAPITAL MANAGEMENT, LLC 2% 770,152 +0.58% 0% $21,976,906
Divisar Capital Management LLC 1.9% 759,815 +11% 6.1% $21,677,522
Ophir Asset Management Pty Ltd 1.8% 723,127 2.3% $20,630,813
EMERALD MUTUAL FUND ADVISERS TRUST 1.5% 594,610 0% 0.83% $16,964,223
WASATCH ADVISORS LP 1.3% 522,320 -4.7% 0.09% $14,901,790
ArrowMark Colorado Holdings LLC 1.3% 493,343 +9.2% 0.31% $14,075,076
Silverberg Bernstein Capital Management LLC 1.2% 473,883 +3.3% 7.8% $13,519,882
LOOMIS SAYLES & CO L P 1.2% 465,182 +28% 0.02% $13,271,642
Russell Investments Group, Ltd. 1% 407,370 +8.8% 0.01% $11,622,280
MORGAN STANLEY 1% 399,222 +12% 0% $11,389,854
Connor, Clark & Lunn Investment Management Ltd. 0.99% 388,337 -1.7% 0.03% $11,079,255
Pillsbury Lake Capital LLC 0.95% 376,069 0% 4.4% $10,729,249
NORTHERN TRUST CORP 0.88% 347,934 -4.4% 0% $9,926,558
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.78% 306,825 +2.8% 0% $8,753,717

Institutional Holders of PDF SOLUTIONS INC - Common Stock (PDFS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 17,186,262 $562,156,257 +$28,640,337 $32.71 123
2025 Q4 30,500,909 $870,334,237 +$18,721,068 $28.53 185
2025 Q3 29,687,544 $766,532,547 +$17,247,842 $25.82 179
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
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