§ SEMICONDUCTORS
USD · SemiconductorsPDFS
PDF SOLUTIONS INC
USDSector · SemiconductorsBeta · 1.69
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
195 increased/new, 63 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 292.7 | P/B | 4.16 |
| EPS (TTM) | 0.18 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 4.9M | 0.0% | −0% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 2.0M | 3.4% | +3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4M | n/a | n/a |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | n/a | n/a |
| Ranger Investment Management, L.P. | 1.3M | 3.0% | +9% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.3M | 0.1% | −8% |
◇ AC INTELLIGENCE
Top institutional owners for PDFS as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER98.3% · 0 holders
OTHER0.9% · 136 holders
PASSIVE / INDEX0.3% · 8 holders
QUALITY / COMPOUNDER0.3% · 16 holders
DEALER / BANK0.1% · 27 holders
DEEP VALUE0.1% · 1 holder
INCOME / DEFENSIVE0.0% · 17 holders
SYSTEMATIC / QUANT0.0% · 4 holders
TACTICAL / MACRO0.0% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for PDFS in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention PDFS yet.