PDF Solutions, Inc. - Common Stock, $0.00015 par value (PDFS)
CUSIP: 693282105
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Common Stock, $0.00015 par value
- Shares outstanding
- 39,660,784
- Total 13F shares
- 17,186,262
- Share change
- +849,364
- Total reported value
- $562,156,257
- Price per share
- $32.71
- Number of holders
- 123
- Value change
- +$28,640,337
- Number of buys
- 51
- Number of sells
- 46
Quarterly Holders Quick Answers
What is CUSIP 693282105?
CUSIP 693282105 identifies PDFS - PDF Solutions, Inc. - Common Stock, $0.00015 par value in SEC institutional holdings data.
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- Previous quarter: Q4 2025
Recent filing periods for CUSIP 693282105:
Top shareholders of PDFS - PDF Solutions, Inc. - Common Stock, $0.00015 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
12%
|
4,885,246
|
$139,376,067 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
7.8%
|
3,089,519
|
$88,143,977 | — | 31 Dec 2025 | |
| John Kachig Kibarian |
13D/G
3/4/5
|
KIBARIAN JOHN KACHIG · PRESIDENT AND CEO, Director |
6.5%
|
2,562,474
|
$80,871,679 | +$1,578,000 | 31 Dec 2025 | |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13D/G
13F
|
Needham Investment Management L.L.C. · Company |
5.1%
|
2,022,700
|
$78,541,441 | +$2,240,491 | 31 Mar 2026 | |
| Kimon Michaels |
3/4/5
|
EVP of Products and Solutions, Director |
4%
|
1,570,370
|
$43,703,396 | — | 09 Dec 2025 | |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
3.4%
|
1,358,481
|
$38,757,463 | — | 31 Dec 2025 | |
| Ranger Investment Management, L.P. |
13F
|
Company |
3%
|
1,170,014
|
$33,380,499 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.9%
|
1,151,576
|
$32,854,463 | — | 31 Dec 2025 | |
| Samjo Management, LLC |
13F
|
Company |
2.9%
|
1,151,019
|
$32,838,572 | — | 31 Dec 2025 | |
| SNYDER CAPITAL MANAGEMENT L P |
13F
|
Company |
2.4%
|
955,435
|
$27,258,561 | — | 31 Dec 2025 | |
| EMERALD ADVISERS, LLC |
13F
|
Company |
2.4%
|
943,372
|
$26,914,403 | — | 31 Dec 2025 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
2.3%
|
912,135
|
$26,023,469 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2%
|
800,963
|
$22,852,857 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
770,152
|
$21,976,906 | — | 31 Dec 2025 | |
| Divisar Capital Management LLC |
13F
|
Company |
1.9%
|
759,815
|
$21,677,522 | — | 31 Dec 2025 | |
| Ophir Asset Management Pty Ltd |
13F
|
Company |
1.8%
|
723,127
|
$20,630,813 | — | 31 Dec 2025 | |
| EMERALD MUTUAL FUND ADVISERS TRUST |
13F
|
Company |
1.5%
|
594,610
|
$16,964,223 | — | 31 Dec 2025 | |
| WASATCH ADVISORS LP |
13F
|
Company |
1.3%
|
522,320
|
$14,901,790 | — | 31 Dec 2025 | |
| ArrowMark Colorado Holdings LLC |
13F
|
Company |
1.2%
|
493,343
|
$14,075,076 | — | 31 Dec 2025 | |
| Silverberg Bernstein Capital Management LLC |
13F
|
Company |
1.2%
|
473,883
|
$13,519,882 | — | 31 Dec 2025 | |
| LOOMIS SAYLES & CO L P |
13F
|
Company |
1.2%
|
465,182
|
$13,271,642 | — | 31 Dec 2025 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
1%
|
407,370
|
$11,622,280 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1%
|
399,222
|
$11,389,854 | — | 31 Dec 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
0.98%
|
388,337
|
$11,079,255 | — | 31 Dec 2025 | |
| Pillsbury Lake Capital LLC |
13F
|
Company |
0.95%
|
376,069
|
$10,729,249 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.88%
|
347,934
|
$9,926,558 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.77%
|
306,825
|
$8,753,717 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
0.67%
|
267,075
|
$7,619,651 | — | 31 Dec 2025 | |
| HERALD INVESTMENT MANAGEMENT Ltd |
13F
|
Company |
0.57%
|
225,000
|
$6,419,250 | — | 31 Dec 2025 | |
| Roubaix Capital, LLC |
13F
|
Company |
0.55%
|
220,022
|
$6,277,228 | — | 31 Dec 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.55%
|
217,560
|
$6,206,987 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.5%
|
197,821
|
$5,643,828 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.48%
|
189,818
|
$5,415,508 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.39%
|
153,048
|
$4,366,460 | — | 31 Dec 2025 | |
| RICE HALL JAMES & ASSOCIATES, LLC |
13F
|
Company |
0.37%
|
147,655
|
$4,212,597 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.34%
|
136,138
|
$3,884,017 | — | 31 Dec 2025 | |
| BROWN CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.32%
|
125,137
|
$3,570,159 | — | 31 Dec 2025 | |
| PRELUDE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.29%
|
116,450
|
$3,322,319 | — | 31 Dec 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.28%
|
110,729
|
$3,159,098 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.28%
|
110,629
|
$3,156,245 | — | 31 Dec 2025 | |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.27%
|
107,649
|
$3,071,226 | — | 31 Dec 2025 | |
| Lisanti Capital Growth, LLC |
13F
|
Company |
0.27%
|
105,540
|
$3,011,056 | — | 31 Dec 2025 | |
| Bridge City Capital, LLC |
13F
|
Company |
0.26%
|
102,324
|
$2,919,304 | — | 31 Dec 2025 | |
| Adnan Raza |
3/4/5
|
EVP, Finance and CFO |
0.24%
|
93,383
|
$2,652,806 | — | 01 Jan 2026 | |
| Andrzej Strojwas |
3/4/5
|
Chief Technology Officer |
0.22%
|
89,204
|
$2,544,990 | — | 01 Jan 2026 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.21%
|
82,477
|
$2,353,050 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.21%
|
81,420
|
$2,322,913 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.2%
|
80,702
|
$2,302,429 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.2%
|
79,873
|
$2,278,776 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.16%
|
64,986
|
$1,854,051 | — | 31 Dec 2025 |
Institutional Holders of PDF Solutions, Inc. - Common Stock, $0.00015 par value (PDFS) as of Q1 2026
As of 31 Mar 2026,
PDF Solutions, Inc. - Common Stock, $0.00015 par value (PDFS) was held by
123 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
17,186,262 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD PORTFOLIO MANAGEMENT LLC, VANGUARD CAPITAL MANAGEMENT LLC, WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC, BARROW HANLEY MEWHINNEY & STRAUSS LLC, SNYDER CAPITAL MANAGEMENT L P, EMERALD ADVISERS, LLC, DIMENSIONAL FUND ADVISORS LP, LOOMIS SAYLES & CO L P, and EMERALD MUTUAL FUND ADVISERS TRUST.
This page lists
139
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
185
Q1 2026 holders
123
Holder diff
-62
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.