13F reference period
Q2 2026
Security Snapshot
PDF SOLUTIONS INC - Common Stock SH (PDFS) Institutional Ownership
CUSIP: 693282105
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
280
Shares (Excl. Options)
38,903,438
Price
$70.79
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Common Stock SH
- Symbol
- PDFS on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 38,903,438
- Total 13F value
- $2,748,750,753
- Portfolio coverage rank
- 0.01%
- Share change
- +6,801,134
- Value change
- +$489,154,909
- Number of holders
- 280
- Shares outstanding
- 42,009,079
- SEC-reported price per share
- $51.05
- Insider filing price
- $51.05
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- PDFS - PDF SOLUTIONS INC - Common Stock SH is tracked under CUSIP 693282105.
- 280 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 206 to 280 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,053,863,497 to $2,748,750,753.
Research use
- 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.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 280 institutions filings for Q2 2026.
Security key
693282105
13F reference period
Q2 2026
13F holders
280
13D/G owners
3
CIK / CUSIP context first
Open Q2 2026 holders
PDFS full holder history
PDF SOLUTIONS INC SEC filings
PDF SOLUTIONS INC company facts
PDF SOLUTIONS INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 693282105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
PDFS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| WASATCH ADVISORS LP | 6.3% | $135,107,501 | 2,646,572 | Wasatch Advisors LP | 30 Sep 2026 | |||
| 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 | 5.1% | +4% | $78,541,441 | +$2,240,491 | 2,022,700 | +2.9% | Needham Investment Management L.L.C. | 31 Mar 2026 |
As of 30 Jun 2026, 280 institutional investors reported holding 38,903,438 shares of PDF SOLUTIONS INC - Common Stock SH (PDFS). This represents 93% of the company’s total 42,009,079 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
66%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | 5,550,335 | +14% | 0.01% | $392,908,214 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 4.9% | 2,065,000 | +2.1% | 4.4% | $146,181,350 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 1,664,256 | +20% | 0% | $117,812,682 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.5% | 1,457,748 | +4.1% | 0% | $103,193,981 |
| STATE STREET CORP | 3.3% | 1,386,498 | +16% | 0% | $98,150,193 |
| WASATCH ADVISORS LP | 3.3% | 1,380,739 | +172% | 0.64% | $97,742,514 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 3.1% | 1,319,627 | +16% | 0.28% | $93,416,395 |
| Ranger Investment Management, L.P. | 2.7% | 1,149,647 | -10% | 5.1% | $81,383,511 |
| SNYDER CAPITAL MANAGEMENT L P | 2.5% | 1,033,997 | -2.5% | 1.3% | $73,196,648 |
| Jupiter Topco LLC | 2.2% | 927,781 | 0% | 0.03% | $65,677,102 |
| JPMORGAN CHASE & CO | 2.2% | 927,267 | +6222% | 0% | $61,125,440 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 917,962 | +14% | 0% | $64,996,718 |
| EMERALD ADVISERS, LLC | 2.1% | 884,294 | +2.7% | 1.5% | $62,599,172 |
| DIMENSIONAL FUND ADVISORS LP | 2% | 841,186 | -0.53% | 0.01% | $59,537,326 |
| JENNISON ASSOCIATES LLC | 1.7% | 716,075 | 0.03% | $50,690,949 | |
| Atreides Management, LP | 1.6% | 658,536 | 0.42% | $46,617,763 | |
| LOOMIS SAYLES & CO L P | 1.5% | 643,268 | -22% | 0.06% | $45,536,916 |
| Ophir Asset Management Pty Ltd | 1.4% | 607,343 | -47% | 3.5% | $42,993,811 |
| Point72 Asset Management, L.P. | 1.4% | 598,902 | 0.06% | $42,396,273 | |
| EMERALD MUTUAL FUND ADVISERS TRUST | 1.3% | 566,429 | -4.7% | 1.4% | $40,097,509 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.3% | 554,226 | -56% | 0.12% | $39,233,659 |
| Samjo Management, LLC | 1.3% | 548,285 | -40% | 14% | $38,813,095 |
| Silverberg Bernstein Capital Management LLC | 1.1% | 465,823 | -1.5% | 13% | $32,975,610 |
| OBERWEIS ASSET MANAGEMENT INC/ | 1% | 426,400 | 0.62% | $30,184,856 | |
| Invesco Ltd. | 1% | 422,931 | +193% | 0% | $29,939,286 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 3,449,773 | $175,933,798 | +$55,252,394 | $51.05 | 32 |
| 2026 Q2 | 38,903,438 | $2,748,750,753 | +$489,154,909 | $70.79 | 280 |
| 2026 Q1 | 32,224,169 | $1,053,863,497 | +$55,427,524 | $32.71 | 206 |
| 2025 Q4 | 30,606,469 | $873,345,864 | +$18,721,068 | $28.53 | 187 |
| 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 |