PDF Solutions Inc
PDFSFigures shown here come from public SEC filings. Dates beside each section show the available history.
How PDF Solutions Inc Makes Money
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From revenue to net income
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 17 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jan 5, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| Samjo Management, LLC | 2026-03-31 | 919,955 | $30.1M | SEC filing |
| BROWN, LISLE/CUMMINGS, INC. | 2026-03-31 | 59 | $1.93K | SEC filing |
| Ameritas Investment Partners, Inc. | 2026-03-31 | 2,695 | $88.2K | SEC filing |
| MANGROVE PARTNERS IM, LLC | 2026-03-31 | 6,584 | $215K | SEC filing |
| BARCLAYS PLC | 2026-03-31 | 6,078 | $199K | SEC filing |
| PRINCIPAL FINANCIAL GROUP INC | 2026-03-31 | 156,515 | $5.12M | SEC filing |
| Bell Investment Advisors, Inc | 2026-03-31 | 699 | $22.9K | SEC filing |
| Gem Investment Advisors, LLC | 2026-03-31 | 105,526 | $3.45M | SEC filing |
| BANK OF AMERICA CORP /DE/ | 2026-03-31 | 85,776 | $2.81M | SEC filing |
| UBS Group AG | 2026-03-31 | 101,285 | $3.31M | SEC filing |
| Annis Gardner Whiting Capital Advisors, LLC | 2026-03-31 | 30 | $982 | SEC filing |
| INTECH INVESTMENT MANAGEMENT LLC | 2026-03-31 | 7,915 | $259K | SEC filing |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2026-03-31 | 839 | $27.4K | SEC filing |
| NATIXIS ADVISORS, LLC | 2026-03-31 | 17,019 | Not shown | SEC filing |
| Ankerstar Wealth, LLC | 2026-03-31 | 6 | $196 | SEC filing |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2026-03-31 | 9,681 | $317K | SEC filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2026-03-31 | 308,174 | $10.1M | SEC filing |
| XTX Topco Ltd | 2026-03-31 | 18,301 | $599K | SEC filing |
| DARK FOREST CAPITAL MANAGEMENT LP | 2026-03-31 | 11,589 | $379K | SEC filing |
| DIMENSIONAL FUND ADVISORS LP | 2026-03-31 | 845,693 | $27.7M | SEC filing |
- Each value is checked against PDF Solutions Inc's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 1 row: the filed value is about 1,000 times too small for the share count at PDF Solutions Inc's share price.
120 filers have only one report here.
Independent insiders buying near the same time
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2025-05-13 | GUSTAFSON MICHAEL B · Director | Common Stock | P — Open market or private purchase | +7,500 | 19.45 | SEC filing |
| 2025-02-25 | KIBARIAN JOHN KACHIG · PRESIDENT AND CEO | Common Stock | P — Open market or private purchase | +15,644 | 22.11 | SEC filing |
| 2025-02-24 | GUSTAFSON MICHAEL B · Director | Common Stock | P — Open market or private purchase | +4,000 | 23.06 | SEC filing |
| 2025-02-24 | KIBARIAN JOHN KACHIG · PRESIDENT AND CEO | Common Stock | P — Open market or private purchase | +34,356 | 22.80 | SEC filing |
| 2024-12-17 | Strojwas Andrzej · CTO | Common Stock | S — Open market or private sale | −6,008 | 30.36 | SEC filing |
| 2024-12-17 | Strojwas Andrzej · CTO | Common Stock | S — Open market or private sale | −245 | 31.17 | SEC filing |
| 2024-12-16 | Strojwas Andrzej · CTO | Common Stock | S — Open market or private sale | −5,030 | 30.85 | SEC filing |
| 2024-12-11 | Erba Nancy · Director | Common Stock | S — Open market or private sale | −2,000 | 30.81 | SEC filing |
Showing 8 of 14 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-01-01 | Raza Adnan · EVP, Finance and CFO | Common Stock | F — Payment of exercise price or tax by delivering securities | −5,498 | SEC filing |
| 2026-01-01 | Strojwas Andrzej · Chief Technology Officer | Common Stock | F — Payment of exercise price or tax by delivering securities | −2,762 | SEC filing |
| 2025-12-09 | MICHAELS KIMON · EVP of Products and Solutions | Common Stock | G — Bona fide gift | −5,070 | SEC filing |
| 2025-08-01 | Strojwas Andrzej · Chief Technology Officer | Common Stock | A — Grant, award, or other acquisition | +8,000 | SEC filing |
| 2025-08-01 | Raza Adnan · EVP, Finance and CFO | Common Stock | A — Grant, award, or other acquisition | +35,000 | SEC filing |
| 2025-07-01 | BRONSON JOSEPH R · Director | Common Stock | A — Grant, award, or other acquisition | +7,429 | SEC filing |
| 2025-07-01 | Li Ye Jane · Director | Common Stock | A — Grant, award, or other acquisition | +7,429 | SEC filing |
| 2025-07-01 | CHAN CHI-FOON · Director | Common Stock | A — Grant, award, or other acquisition | +7,429 | SEC filing |
Showing 8 of 37 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.