PDF SOLUTIONS INC
PDFS- Exchange
- Nasdaq
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001120914
Insider trades, last 90 days
0 buys · 2 sells
- Sold $227.98K
- Open-market purchases (P) and sales (S), counted by Form 4 filing.
13F holders, Q2 2026
283
- +75 vs. Q1 2026
- Total value $2.75B
Superinvestors holding PDFS
0
- None of the superinvestors held PDFS at the end of Q2 2026.
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by PDFS insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 20262:09 PM ET | Aug 31, 2026 | Strojwas AndrzejChief Technology Officer | SSaleCommon Stock | −3.39K | $44.41 | −$150.73K | 90.97K | −3.6% | SEC |
| Aug 12, 20269:32 PM ET | Aug 12, 2026 | Zhang ShuoDirector | SSaleCommon Stock | −1.5K | $51.47 | −$77.26K | 23.38K | −6.0% | SEC |
| May 14, 2025 | May 13, 2025 | GUSTAFSON MICHAEL BDirector | PPurchaseCommon Stock | +7.5K | $19.45 | +$145.88K | 30.07K | +33.2% | SEC |
| Feb 25, 2025 | Feb 24, 2025 | GUSTAFSON MICHAEL BDirector | PPurchaseCommon Stock | +4K | $23.06 | +$92.24K | 22.57K | +21.5% | SEC |
| Feb 25, 2025 | Feb 24 – Feb 25, 2025 | KIBARIAN JOHN KACHIGPRESIDENT AND CEO | PPurchaseCommon Stock | +50K | $22.5841 | +$1.13M | 2.52M | +2.0% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in PDFS at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,550,335 | $392.91M | 0.01% | +684,158+14.1% | Added |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 2,065,000 | $146.18M | 4.40% | +42,300+2.1% | Added |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,664,256 | $117.81M | 0.00% | +276,134+19.9% | Added |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1,457,748 | $103.19M | 0.00% | +57,026+4.1% | Added |
| STATE STREET CORP | 1,386,498 | $98.15M | 0.00% | +194,090+16.3% | Added |