How many insider trades does FilingIQ track for PDFS?

FilingIQ tracks 246 Form 4 insider transactions for PDFS (PDF SOLUTIONS INC), covering filings from Nov 8, 2013 onwards. 0 of those were filed in the last 90 days.

Are PDFS insiders net buyers or net sellers?

Across the full Form 4 history for PDFS, 4 transactions (2%) were open-market purchases and 58 (24%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does PDFS insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is PDFS in?

PDF SOLUTIONS INC (PDFS) is classified in the Technology sector, specifically Software - Application, with a current market capitalisation of $1.32B.

PDFS insider trading

NasdaqGS Technology

PDF SOLUTIONS INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

246

Last 90 days

Buys / sells

2% / 24%

Market cap

$1.32B

About PDF SOLUTIONS INC

PDF Solutions, Inc. provides proprietary software, physical intellectual property for integrated circuit designs, electrical measurement hardware tools, proven methodologies, and professional services in the United States, Japan, China, Taiwan, and internationally. The company offers Exensio software products, such as Manufacturing Analytics, a proprietary database schema to store collected data to identify and analyze production yield, performance, reliability, and other issues; Process Control, which provides failure detection and classification capabilities for monitoring, alarming, and controlling manufacturing tool sets; Test Operations that offer data collection and analysis capabilities; and Assembly Operations that provide device manufacturers with the capability to link assembly and packaging data, including fabrication and characterization data over the product life cycle. It also provides Sapience Manufacturing Hub enterprise, a connectivity platform between enterprise applications; Design-For-Inspection (DFI) systems, such as Proprietary Software, DFI On-Chip Instruments, eProbe Non-Contact E-Beam Tool; and Characterization Vehicle (CV) system, which includes CV Test Chips and pdFasTest Electrical Tester, as well as Exensio characterization software. In addition, the company offers Cimetrix software products that enable equipment manufacturers to provide standard interfaces on their products for equipment communication, control, and data collection; equipment factory connectivity products, such as Cimetrix CIMConnect, Cimetrix CIM300, and Cimetrix CIMPortal Plus; and equipment factory connectivity testing and equipment control products, as well as software-as-a-service, software related services, DFI system related services, and characterization services. PDF Solutions, Inc. was founded in 1991 and is headquartered in Santa Clara, California.

Company website: www.pdf.com

PDFS insider activity at a glance

FilingIQ has scored 246 insider transactions for PDFS since Nov 8, 2013. The most recent filing in our index is dated Jan 1, 2026.

Across the full history, 4 open-market purchases and 58 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on PDFS insider trades is 61.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live PDFS trades on FilingIQ Raw filings on SEC EDGAR

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13F funds holding PDFS

Samjo Management, LLC

$17.46M · 6.7% of AUM

EAM Investors, LLC

$3.52M · 0.7% of AUM

Frequently asked

How many insider trades does FilingIQ track for PDFS?: FilingIQ tracks 246 Form 4 insider transactions for PDFS (PDF SOLUTIONS INC), covering filings from Nov 8, 2013 onwards. 0 of those were filed in the last 90 days.
Are PDFS insiders net buyers or net sellers?: Across the full Form 4 history for PDFS, 4 transactions (2%) were open-market purchases and 58 (24%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does PDFS insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is PDFS in?: PDF SOLUTIONS INC (PDFS) is classified in the Technology sector, specifically Software - Application, with a current market capitalisation of $1.32B.

Methodology & sources

Every PDFS insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.