Welcome to our dedicated page for PDF SOLUTIONS SEC filings (Ticker: PDFS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
PDF Solutions Inc. filings document financial results, governance matters, capital structure, and material events for a Nasdaq-listed semiconductor data solutions company. Form 8-K reports furnish quarterly earnings releases and management reports, and also disclose items such as credit agreement amendments, Regulation FD updates, and corrections to prior operating discussion.
Proxy materials cover director elections, auditor ratification, equity compensation plans, employee stock purchase plan approvals, advisory executive compensation votes, and related executive compensation disclosures. The company’s filings also identify its Delaware corporate status and common stock registered on The Nasdaq Stock Market under the symbol PDFS.
PDF SOLUTIONS INC (PDFS) Chief Technology Officer Andrzej Strojwas reported an open-market sale of 3,394 shares of common stock on August 31, 2026. The shares were sold at a weighted average price of $44.41 per share, in multiple broker transactions between $44.37 and $44.43 per share.
Following this transaction, Strojwas directly holds 90,965 shares of PDFS common stock, which includes 156 shares purchased on July 31, 2026 under the PDF Employee Stock Purchase Plan. The filing’s Rule 10b5-1 checkbox indicates the trade was not reported as pursuant to a Rule 10b5-1 trading plan.
PDF SOLUTIONS, INC. (PDFS) received a notice under Rule 144 that officer Andrzej Jozef Strojwas intends to sell common stock through Morgan Stanley Smith Barney LLC. The planned sale covers 3,394 shares of common stock, with an indicated aggregate market value of $150,731.27 and proposed sales on or after August 31, 2026 on NASDAQ.
The shares consist of restricted stock acquired from the issuer on July 1, 2026 in four blocks (893, 893, 893, and 715 shares). This filing gives advance notice of a potential resale by an officer; it does not itself complete any transaction.
PDF Solutions Inc. director Shuo Zhang reported a sale of 1,501 shares of common stock on 2026-08-12 in an open-market or private transaction at $51.47 per share. Following this transaction, Zhang directly holds 23,380 shares of PDF Solutions common stock. The transaction was not marked as made under a Rule 10b5-1 trading plan.
PDF Solutions, Inc. reported higher revenue and a return to profitability for the three and six months ended June 30, 2026. Total revenues were $61.5 million for the quarter and $121.7 million year-to-date, up from $51.7 million and $99.5 million in the prior-year periods, driven by both Platform and Volume-based offerings.
Net income was $4.3 million for the quarter and $9.1 million for six months, compared with $1.1 million and a $1.9 million loss a year earlier, with diluted EPS of $0.10 and $0.22. Operating cash flow increased to $18.1 million from $3.4 million, and cash and cash equivalents rose to $114.9 million, helped by approximately $81.8 million of net proceeds from a secondary equity offering. Total assets reached $519.2 million, stockholders’ equity $372.5 million, and total debt principal $67.5 million. Recurring revenue represented 80% of quarterly revenue, and remaining performance obligations were about $270.7 million, most expected to be recognized over the next two years.
PDF Solutions, Inc. reported second quarter 2026 total revenues of $61.5 million, up 19% from the prior‑year quarter and slightly above the first quarter’s $60.1 million. Revenue came from both platform and volume‑based offerings, with recurring revenue representing 80% of the mix.
GAAP gross margin was 69% and operating margin 8%. Non‑GAAP gross margin was 73% and operating margin 22%. GAAP net income was $4.3 million, or $0.10 per diluted share, while non‑GAAP net income was $11.4 million, or $0.27 per diluted share, both higher than a year earlier.
Ending backlog reached $270.7 million, compared with $246.4 million in the first quarter of 2026 and $232.6 million in the second quarter of 2025. Management highlighted customer wins for secureWISE, DirectScan, and Exensio solutions and reaffirmed its target of 20% total revenue growth for 2026.
PDF Solutions Inc. Chief Technology Officer Andrzej Strojwas reported routine equity compensation activity. He received a grant of 5,360 shares of common stock as a stock award, increasing his direct holdings. On the same date, 1,356 shares were withheld at $66.88 per share to cover tax obligations tied to vesting of restricted stock units, not sold in the market. After these transactions, he directly holds 94,203 shares of common stock.
Zhang Shuo reported acquisition or exercise transactions in this Form 4 filing.
PDF Solutions Inc. reported that director Shuo Zhang received an equity grant of 2,689 shares of Common Stock as a compensation award. These shares are structured as Restricted Stock Units that carry no cash purchase price.
The award will vest in four equal installments of 25% of the total RSUs, with vesting on the first day of each calendar quarter after the grant effective date, contingent on continued board service. Following this grant, Zhang directly holds 24,881 shares of the company’s common stock.
PDF Solutions director Michael B. Gustafson received a grant of 2,689 restricted stock units as part of the company’s Director Compensation Program. These RSUs convert into common shares over time rather than being purchased on the market.
The award vests in four equal installments of 25% each, on the first day of each calendar quarter following the Grant Effective Date, contingent on his continued board service. After this grant, Gustafson directly holds 40,192 shares of PDF Solutions common stock, reflecting routine equity-based compensation rather than an open-market transaction.
CHAN CHI-FOON reported acquisition or exercise transactions in this Form 4 filing.
PDF Solutions director Chi-Foon Chan received an equity award of 2,689 shares of common stock in the form of Restricted Stock Units (RSUs). The award was granted at no cash cost per share as part of the company’s Director Compensation Program.
The RSUs will vest in four equal installments of 25%, with vesting on the first day of each calendar quarter after the grant effective date, as long as Chan continues to serve through each vesting date. After this grant, Chan directly holds 24,168 shares of common stock.