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Company profile

Pdf Solutions Inc Insider Trading

PDFS

Every SEC Form 4 insider trading filing for Pdf Solutions Inc (PDFS) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
Nasdaq
Sector
Services-Prepackaged Software
CIK
0001120914
Filings
73
Insiders
10
Last filing
2026-08-31
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $151K across 1 transaction.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. Pdf Solutions Inc insiders are net sellers across the period shown.

PurchasesSales
Q4 23$1.3MQ1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $1.3M.

90 day insight

Over the last 90 days, Pdf Solutions Inc insiders bought $0 (8 transactions) and sold $721K (4 transactions).

  • Most active insider: Andrzej Strojwas with 3 transactions totaling $241K.
  • Largest single sale: $402K by Adnan Raza on Jul 1, 2026.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValueReturn
Aug 31, 2026Andrzej StrojwasPDFS
Sale
3,394$44.41$151K+12.8% 1w
Aug 12, 2026Shuo ZhangPDFS
Sale
1,501$51.47$77K-8.1% 1m
Jul 1, 2026Adnan RazaPDFS
Tax Withholding
6,010$66.88$402K-22.3% 1m
Jul 1, 2026Adnan RazaPDFS
Award
23,450——-22.3% 1m
Jul 1, 2026Nancy ErbaPDFS
Award
2,689——-22.3% 1m

45 more transactions hidden

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Top insiders

By total value filed.

John Kachig KibarianPRESIDENT AND CEO2 filings+$1.1M
Andrzej StrojwasChief Technology Officer9 filings−$828K
Adnan RazaEVP, Finance and CFO3 filings−$666K
Michael B GustafsonDirector2 filings+$238K
Shuo ZhangDirector1 filing−$77K

Institutional Ownership

Top 13F-HR holders of Pdf Solutions Inc as of 2026-06-30

— stable
Total reported AUM
$1.00B
QoQ change
+1.0%
Reporting period
2026-06-30
#1
BlackRock, Inc.
CIK 0002012383
$284.4M
4.0M shares
#2
State Street Corp
CIK 0000093751
$98.2M
1.4M shares
#3
Wasatch Advisors Lp
CIK 0000814133
$97.7M
1.4M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

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Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

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