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PDFS

PDF SOLUTIONS (PDFS) stock: insider trades, news & valuation

Net selling
Close · Oct 9, 2026 $54.40 +4.3% on the day +106.5% over 12 months 52-week range $23.97 – $70.79

Share price and insider trades

PDFS closeInsider buyInsider sale
20406080NovDecJan 2026FebMarAprMayJunJulAugSepOctSold $77,256 on 2026-08-12 · Shuo ZhangSold $150,728 on 2026-08-31 · Andrzej Strojwas
Bought, 12 months$0
Sold, 12 months$228K
Insiders buying0
Insiders selling2

PDF SOLUTIONS insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 2 sold $228K of PDFS stock on the open market.

PDFS insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q3 2026: $228K sold (2 trades)Q3 2026Q4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026—0—0
Q3 2026—0$228K2

Valuation, profit and volume

P/E (trailing)n/aSector median —
Market value— 
Profit margin—Revenue growth —
Volume vs. 50-day0.8×Last 5 sessions
Insiders' paper profit—On all tracked purchases —

Summary

Over the past 12 months, 0 PDF SOLUTIONS INC insiders reported open-market purchases totaling $0, while 2 insiders reported sales totaling $228K. 0 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Sep 1SEC Andrzej StrojwasCTO Sell 3,39490,965 held (−4%) $44.41 $151K +22.5% —
Aug 12SEC Shuo ZhangDirector Sell 1,50123,380 held (−6%) $51.47 $77K +5.7% —

Insiders at PDF SOLUTIONS INC

InsiderBoughtSoldLast filingScore
Andrzej StrojwasCTO — $151K Sep 1, 2026 —
Shuo ZhangDirector — $77K Aug 12, 2026 —

PDFS stock: common questions

Are PDF SOLUTIONS INC insiders buying PDFS stock?

In the past 12 months, 0 insiders reported open-market purchases of PDFS worth $0.

Are PDF SOLUTIONS INC insiders selling PDFS stock?

2 insiders reported sales worth $228K over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is PDFS's 52-week range?

Over the past year PDFS has traded between $23.97 and $70.79. It last closed at $54.40 on Oct 9, 2026.