13F Insight
DOSSIER · 13F Holders · Q1 2026BellwetherCompounder
PDFS

PDF SOLUTIONS INC

217 institutions still hold PDF SOLUTIONS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 693282105·217 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 1.4%
vs prior quarter
13F value held
$783M
64.0% inst. owned
of float
Holders
217
+68 QoQ
filers reporting
Activity
+29 / −77
+793 added · −844 reduced
this quarter
Concentration
20.34%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

217 institutions reported PDFS in Q1 2026. BlackRock, Inc. leads at 20.3% of the visible book. +68 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$159M4.9M0.00%Q1 202602
NEEDHAM INVESTMENT MANAGEMENT LLC
CIK 0001167212
$56M2.0M3.54%Q4 202503
Vanguard Portfolio Management
CIK 0002100121
$46M1.4M0.00%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$45M1.4M0.00%Q1 202605
Ranger Investment Management, L.P.
CIK 0001319691
$42M1.3M3.03%Q1 202606
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 0001644956
$41M1.3M0.14%Q1 202607
STATE STREET CORP
CIK 0000093751
$39M1.2M0.00%Q1 202608
BARROW HANLEY MEWHINNEY & STRAUSS LLC
CIK 0000313028
$37M1.1M0.12%Q1 202609
Ophir Asset Management Pty Ltd
CIK 0001844640
$37M1.1M4.33%Q1 202610
SNYDER CAPITAL MANAGEMENT L P
CIK 0001050477
$35M1.1M0.67%Q1 202611
JANUS HENDERSON GROUP PLC
CIK 0001274173
$34M1.0M0.02%Q1 202612
Samjo Management, LLC
CIK 0001986590
$30M920K13.01%Q1 202613
EMERALD ADVISERS, LLC
CIK 0001015083
$28M861K0.89%Q1 202614
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$28M846K0.01%Q1 202615
LOOMIS SAYLES & CO L P
CIK 0000312348
$27M827K0.04%Q1 202616
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$26M802K0.00%Q1 202617
Divisar Capital Management LLC
CIK 0001645721
$20M623K5.20%Q1 202618
EMERALD MUTUAL FUND ADVISERS TRUST
CIK 0001352895
$19M595K0.94%Q1 202619
WASATCH ADVISORS LP
CIK 0000814133
$17M508K0.11%Q1 202620
Silverberg Bernstein Capital Management LLC
CIK 0002007880
$15M473K8.52%Q1 2026
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