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.
BRONSON JOSEPH R reported acquisition or exercise transactions in this Form 4 filing.
PDF Solutions director Joseph R. Bronson received an equity award of 2,689 shares of Common Stock as a grant under the company’s Director Compensation Program. The award is in the form of Restricted Stock Units that vest in four equal quarterly installments, subject to his continued service.
After this grant, Bronson directly holds 40,956 shares of Common Stock reported in this filing.
PDF Solutions Inc. director Jane Li reported receiving an equity award in the form of restricted stock units. She was granted 2,689 shares of Common Stock at no cash cost as a grant/award acquisition, increasing her directly held position to 26,632 shares after the transaction.
The footnote explains these shares are an award of Restricted Stock Units (RSUs) under the company’s Director Compensation Program. The RSUs vest in four equal installments of 25% each, on the first day of each calendar quarter after the grant effective date, contingent on her continued board service through each vesting date.
Erba Nancy reported acquisition or exercise transactions in this Form 4 filing.
PDF Solutions director Nancy Erba reported a compensation-related stock grant. She received an award of 2,689 shares of Common Stock in the form of Restricted Stock Units at no cost under the company’s Director Compensation Program.
The RSUs vest in four equal installments of twenty-five percent on the first day of each calendar quarter following the grant effective date, contingent on her continued service. Following this award, she holds 11,943 shares directly and 31,868 shares indirectly through a trust, reflecting routine equity compensation rather than an open-market purchase or sale.
PDF Solutions EVP and CFO Adnan Raza reported routine equity compensation activity. He received a grant of 23,450 shares of common stock as a restricted stock unit award, boosting his direct holdings to 80,697 shares before tax-related adjustments.
To cover tax withholding on vesting of restricted stock units, 6,010 shares were disposed of back to the company at $66.88 per share, which the footnote clarifies was not a market sale. After this tax withholding, his direct ownership stood at 65,000 shares, and an additional 31,250 shares were held indirectly through a trust.
PDF Solutions, Inc. held its 2026 Annual Meeting of Stockholders on June 16, 2026. Stockholders elected Class I directors Joseph R. Bronson and Ye Jane Li, each receiving over 29 million votes in favor, with additional broker non-votes recorded.
Stockholders also ratified BPM LLP as the independent registered public accounting firm for the year ending December 31, 2026. They approved the Eleventh Amended and Restated 2011 Stock Incentive Plan and the Third Amended and Restated 2021 Employee Stock Purchase Plan, and gave non-binding advisory approval of 2025 compensation for Named Executive Officers.
PDF Solutions, Inc. Schedule 13G/A Amendment No. 1 shows that Advantest America, Inc. and Advantest Corporation report 0 shares beneficially owned of PDF Solutions common stock (CUSIP 693282105), representing 0% of the class. The filing lists no voting or dispositive power for either reporting person and is signed by company officers on 05/27/2026.
PDF Solutions, Inc. completed an underwritten common stock offering involving both the company and a selling stockholder. The company issued 1,946,630 shares of common stock, including 685,246 shares from the underwriters’ full option exercise, at an offering price of $44.00 per share.
This generated approximately $85.7 million of gross proceeds for the company before underwriting discounts and expenses, while Advantest America, Inc. sold 3,306,924 existing shares and retained the related proceeds. The transaction was conducted under an effective Form S-3 shelf registration, with Morgan Stanley & Co. LLC acting as representative of the underwriters.
PDF Solutions, Inc. reports that Needham Investment Management L.L.C., Needham Asset Management, LLC and George A. Needham collectively beneficially own 2,022,700 shares of Common Stock, representing 5.1% of the class. The Schedule 13G discloses shared voting and dispositive power of 2,022,700 shares for each filer. The filing is signed by James W. Giangrasso and George A. Needham on 05/15/2026.
PDF Solutions is conducting a mixed offering: it is selling 1,261,384 shares of its common stock and a selling stockholder is offering 3,306,924 shares, for a combined 4,568,308 shares. The offering price is $44.00 per share and the underwriters have a 30-day option to purchase up to 685,246 additional shares.
The company expects net proceeds to it of approximately $53.0 million before expenses (or about $81.8 million if the underwriters fully exercise their option). The prospectus supplement states the selling stockholder will receive no proceeds from the shares the company is offering and that the selling stockholder’s shares will not provide proceeds to the company. Shares outstanding were 39,910,993 as of March 31, 2026.
PDF Solutions is offering 500,000 shares of its common stock and a selling stockholder is offering 3,306,924 shares, for a total of 3,806,924 shares registered in this prospectus supplement, with an underwriter option of up to 571,038 additional shares exercisable within 30 days. The company will receive proceeds only from the 500,000 share component; the selling stockholder will receive proceeds from its resale. The offering is conditioned on customary underwriter approvals and lock-up agreements restrict certain insiders for 60 days. Net proceeds to the issuer are to be used for general corporate purposes, which may include repayment of indebtedness.