PDF SOLUTIONS INC (PDFS) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-02

PDF SOLUTIONS INC (PDFS) has filed 8 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 4 Form 8-K material event filings were reported by PDFS in the last 90 days. InsiderAlpha tracks every PDFS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About PDF SOLUTIONS INC (PDFS)

SEC CIK	0001120914

90-Day SEC Filing Activity

Form 4 filings (90d)	8
Form 8-K filings (90d)	4
Latest Form 4 filing	2026-07-02

Recent PDFS Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-07-01	Raza Adnan	EVP, Finance and CFO	A — Grant or award	23.4K	—	—	SEC
2026-07-01	Raza Adnan	EVP, Finance and CFO	F — Tax withholding / forfeiture	6.0K	$66.88	$402K	SEC
2026-07-01	GUSTAFSON MICHAEL B	Director	A — Grant or award	2.7K	—	—	SEC
2026-07-01	CHAN CHI-FOON	Director	A — Grant or award	2.7K	—	—	SEC
2026-07-01	Zhang Shuo	Director	A — Grant or award	2.7K	—	—	SEC
2026-07-01	Strojwas Andrzej	Chief Technology Officer	A — Grant or award	5.4K	—	—	SEC
2026-07-01	Strojwas Andrzej	Chief Technology Officer	F — Tax withholding / forfeiture	1.4K	$66.88	$91K	SEC
2026-07-01	Erba Nancy	Director	A — Grant or award	2.7K	—	—	SEC
2026-07-01	Li Ye Jane	Director	A — Grant or award	2.7K	—	—	SEC
2026-07-01	BRONSON JOSEPH R	Director	A — Grant or award	2.7K	—	—	SEC
2025-08-01	Raza Adnan	EVP, Finance and CFO	A — Grant or award	35.0K	—	—	SEC
2025-08-01	Strojwas Andrzej	Chief Technology Officer	A — Grant or award	8.0K	—	—	SEC
2025-07-01	Li Ye Jane	Director	A — Grant or award	7.4K	—	—	SEC
2025-07-01	BRONSON JOSEPH R	Director	A — Grant or award	7.4K	—	—	SEC
2025-07-01	CHAN CHI-FOON	Director	A — Grant or award	7.4K	—	—	SEC

All transactions sourced from SEC EDGAR Form 4 filings for PDF SOLUTIONS INC (PDFS). Updated in real time as new filings are submitted to the SEC.

Most-Active PDFS Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Strojwas Andrzej	2	$91K
Raza Adnan	2	$402K
GUSTAFSON MICHAEL B	1	—
Erba Nancy	1	—
Zhang Shuo	1	—

Recent PDFS Form 8-K Material Events

2026-06-18 — Item 5.07, 9.01 [SEC]
2026-05-15 — Item 8.01, 9.01 [SEC]
2026-05-07 — Item 2.02, 9.01 [SEC]
2026-04-24 — Item 1.01, 2.03, 9.01 · Financing · neutral [SEC]
PDF Solutions amended its credit agreement on April 23, 2026, increasing the revolving credit facility from an unspecified amount to $75 million. The amendment introduces a tiered commitment fee structure based on leverage ratios, replacing the previous flat 0.50% fee, with rates

Recent Insider Filings

2026-07-02 — Strojwas Andrzej (Chief Technology Officer)
2026-07-02 — Zhang Shuo (Director)
2026-07-02 — GUSTAFSON MICHAEL B (Director)
2026-07-02 — CHAN CHI-FOON (Director)
2026-07-02 — BRONSON JOSEPH R (Director)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in PDFS insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

PDFS Insider Trading — FAQ

What is the latest insider trade for PDFS?: PDF SOLUTIONS INC (PDFS) had 8 insider filings in the last 90 days, with the most recent on 2026-07-02. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying PDFS stock?: 0 insider purchases of PDFS were filed in the last 90 days.
How many insiders are selling PDFS stock?: 0 insider sales of PDFS were filed in the last 90 days.
Where can I see PDFS SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every PDFS SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live PDFS dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.