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Disclosery

PDFS PDF SOLUTIONS INC

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COMMON STOCK (common), issuer CIK 1120914

198 managers (208 13F filers) reported a position in PDFS shares at 2026-03-31, 32,224,180 shares in all. 34 filers opened a position and 16 filers sold out during the quarter.

Managers
198
13F filers
208
New
34
Added
72
Reduced
59
Sold out
16
Shares held by filers
32,224,180

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.4,866,177$159M<0.01%-19,06913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding3,060,874$100M+3,053,202Timeline
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…2,022,700$66.2M3.38%+57,70013F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 2 filers holding1,455,429$47.6M-82,553Timeline
Ranger Investment Management, L.P.1,279,630$41.9M3.03%+109,61613F-HRTimeline
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1,255,559$41.1M0.14%-102,92213F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,192,408$39M<0.01%+40,83213F-HRTimelineGroup
BARROW HANLEY MEWHINNEY & STRAUSS LLC1,140,547$37.3M0.12%new13F-HRTimeline
Ophir Asset Management Pty Ltd1,137,349$37.2M4.33%+414,22213F-HRTimeline
SNYDER CAPITAL MANAGEMENT L P1,060,478$34.7M0.67%+105,04313F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson1,035,666$33.9M0.02%+123,53113F-HR/ATimelineGroup
Samjo Management, LLC919,955$30.1M13.01%-231,06413F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP845,693$27.7M0.01%+44,73013F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P827,109$27.1M0.04%+361,92713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC802,223$26.2M<0.01%+32,07113F-HRTimelineGroup
Divisar Capital Management LLC623,364$20.4M5.2%-136,45113F-HRTimeline
WASATCH ADVISORS LP507,737$16.6M0.11%-14,58313F-HRTimeline
Silverberg Bernstein Capital Management…472,883$15.5M8.52%-1,00013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…441,716$14.4M0.02%+34,34613F-HRTimelineGroup
ArrowMark Colorado Holdings LLC356,620$11.7M0.31%-136,72313F-HRTimeline
DF DENT & CO INC352,960$11.5M0.22%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP352,559$11.5M<0.01%+4,62513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY341,780$11.2M<0.01%-57,44213F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…328,905$10.8M0.02%-59,43213F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co308,174$10.1M<0.01%+1,34913F-HRTimelineGroup
FMR LLCin group FMR LLC302,209$9.89M<0.01%+35,13413F-HRTimelineGroup
Pillsbury Lake Capital LLC270,668$8.85M4.01%-105,40113F-HRTimeline
HERALD INVESTMENT MANAGEMENT Ltd200,000$6.54M0.91%-25,00013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp190,498$6.23M<0.01%-7,32313F-HRTimelineGroup
Roubaix Capital, LLC181,937$5.95M2.78%-38,08513F-HRTimeline
UBS Group AGgroup of 2 filers holding161,124$5.27M+40,165Timeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC156,515$5.12M<0.01%+3,46713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC151,048$4.94M<0.01%-38,77013F-HRTimelineGroup
RICE HALL JAMES & ASSOCIATES, LLC147,782$4.83M0.27%+12713F-HRTimeline
Invesco Ltd.in group Invesco Ltd.144,340$4.72M<0.01%+8,20213F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC130,919$4.28M0.01%-86,64113F-HRTimelineGroup
Public Sector Pension Investment Board114,525$3.75M0.01%+3,79613F-HRTimeline
Nuveen, LLCin group TIAA111,994$3.66M<0.01%+1,36513F-HRTimelineGroup
Gem Investment Advisors, LLC105,526$3.45M3.39%013F-HRTimeline
BROWN CAPITAL MANAGEMENT LLC104,322$3.41M0.48%-20,81513F-HRTimeline
Bridge City Capital, LLC100,771$3.3M0.91%-1,55313F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC90,779$2.97M0.23%-25,67113F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO90,393$2.96M<0.01%+48,18413F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/85,776$2.81M<0.01%+5,90313F-HRTimelineGroup
RHUMBLINE ADVISERS84,547$2.77M<0.01%+2,07013F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding84,169$2.75MnewTimeline
Lisanti Capital Growth, LLC81,365$2.66M0.67%-24,17513F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc74,387$2.43M<0.01%-7,03313F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC72,357$2.37M<0.01%+23,80913F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN67,161$2.2M<0.01%-13,54113F-HR/ATimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\65,812$2.15M<0.01%+3,04213F-HRTimelineGroup
LPL Financial LLC62,530$2.05M<0.01%+52,13113F-HRTimeline
Swiss National Bank62,400$2.04M<0.01%013F-HRTimeline
Dana Investment Advisors, Inc.62,088$2.03M0.06%+6,81113F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC52,322$1.71M<0.01%-6,48613F-HR/ATimelineGroup
Fisher Asset Management, LLC51,444$1.68M<0.01%+10,84113F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC50,988$1.66M<0.01%-2,18113F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC48,572$1.59M<0.01%+2,34013F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC48,467$1.59M<0.01%+6,33813F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding47,105$1.54M-9,180Timeline
Legato Capital Management LLC43,760$1.43M0.13%-9,77013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC41,191$1.35M<0.01%-11,63713F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC39,824$1.3M0.03%-15,60813F-HRTimeline
ALLIANCEBERNSTEIN L.P.44,980$1.28M<0.01%+1,20013F-HRTimeline
Creative Planningin group Creative Planning38,927$1.27M<0.01%+1,32313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND36,911$1.21M<0.01%+1,50013F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC36,349$1.19M<0.01%new13F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC36,300$1.19M<0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC34,588$1.13M<0.01%-5,26813F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC33,562$1.1M<0.01%+3,07013F-HRTimelineGroup
Williams Jones Wealth Management, LLC.32,000$1.05M0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…30,707$1M<0.01%-23813F-HRTimeline
GSA CAPITAL PARTNERS LLP30,378$994K0.06%+3,62613F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co25,033$820K<0.01%013F-HRTimelineGroup
CROWN ADVISORS MANAGEMENT, INC.25,000$817K0.54%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Kings Path Partners LLC24,500$801K0.28%013F-HR/ATimeline
M&T Bank Corpin group M&T Bank Corp23,996$784K<0.01%+3,83113F-HR/ATimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/22,884$749K<0.01%+3,72813F-HRTimeline
Campbell & CO Investment Adviser LLC22,117$723K0.04%new13F-HRTimeline
Quantinno Capital Management LP21,657$708K<0.01%+3,21913F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…21,363$699K<0.01%-62913F-HRTimelineGroup
Assenagon Asset Management S.A.20,503$671K<0.01%-82613F-HRTimeline
Penn Capital Management Company, LLC19,976$653K0.05%013F-HRTimeline
Numerai GP LLC19,573$640K0.06%+12,08113F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.19,300$631K<0.01%013F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC19,211$628K0.01%new13F-HRTimelineGroup
Man Group plcin group Man Group plc18,777$614K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…18,692$611K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd18,301$599K0.01%new13F-HRTimelineGroup
CVA Family Office, LLC17,774$581K0.06%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…16,418$570K<0.01%+37313F-HRTimeline
CenterBook Partners LP17,405$569K0.03%-17,07113F-HRTimeline
State of Alaska, Department of Revenue17,253$563K0.01%-33413F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers17,019$557K<0.01%+94913F-HRTimelineGroup
Illinois Municipal Retirement Fund16,385$536K0.01%+1,71813F-HRTimeline
SG Americas Securities, LLC15,178$496K<0.01%-3,78113F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…14,992$490K<0.01%+19013F-HRTimelineGroup
Louisiana State Employees Retirement Sy…14,200$464K0.01%-50013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …14,197$464K<0.01%+4,39813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO14,668$453K<0.01%+1,07213F-HR/ATimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P12,500$409K0.38%-7,00013F-HRTimeline
Amundiin group Amundi11,661$381K<0.01%-2,85513F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP11,589$379K0.03%-43,47913F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC11,583$379K<0.01%new13F-HRTimeline
Polymer Capital Management (US) LLC10,915$357K0.05%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.10,834$354K<0.01%+5,85613F-HRTimelineGroup
Aptus Capital Advisors, LLC10,590$346K<0.01%new13F-HRTimeline
Clarus Group, Inc.10,553$345K0.12%013F-HRTimeline
CAXTON ASSOCIATES LLP10,243$335K0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…9,681$317K<0.01%+2,24913F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC9,651$316K<0.01%+9,46113F-HRTimeline
Graham Capital Management, L.P.9,647$316K0.01%new13F-HRTimeline
Yorktown Management & Research Co Inc9,550$312K0.26%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA9,520$311K<0.01%-1,09813F-HRTimelineGroup
INCEPTIONR LLC9,475$310K0.07%new13F-HRTimeline
INTRUST BANK NA9,286$304K0.02%new13F-HRTimeline
AMALGAMATED BANK9,212$301K<0.01%-8013F-HRTimeline
Central Pacific Bank - Trust Division9,188$301K0.04%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…8,987$294K<0.01%013F-HRTimeline
Significant Wealth Partners LLC8,934$292K0.36%-4313F-HRTimeline
Police & Firemen's Retirement System of…8,841$289K<0.01%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM8,682$284K<0.01%-12013F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC8,470$277K<0.01%-14013F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…7,939$259K<0.01%013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…7,915$259K<0.01%-813F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC7,915$259K<0.01%-3,47913F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS7,619$249K<0.01%+5613F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…7,347$240K<0.01%+6,96413F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND7,324$240K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…6,814$223K<0.01%-28213F-HRTimelineGroup
KLP KAPITALFORVALTNING AS6,800$222K<0.01%013F-HRTimeline
State of Tennessee, Department of Treas…6,752$221K<0.01%013F-HRTimeline
MANGROVE PARTNERS IM, LLC6,584$215K0.02%new13F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…6,545$214K<0.01%-1,01113F-HRTimeline
PUNCH & ASSOCIATES INVESTMENT MANAGEMEN…6,480$212K0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC6,406$210K<0.01%-3,53213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC6,078$199K<0.01%-44,47813F-HRTimelineGroup
State of Wyoming4,883$160K0.02%-96813F-HRTimeline
1620 INVESTMENT ADVISORS, INC.3,827$125K0.08%-4313F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,695$88.2K<0.01%013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,264$74.1K<0.01%-1,09913F-HRTimelineGroup
GAMMA Investing LLC2,209$72.3K<0.01%+6613F-HRTimeline
CWM, LLCin group CWM, LLC2,197$71.9K<0.01%+3813F-HRTimelineGroup
SIGNATUREFD, LLC1,830$59.9K<0.01%+1513F-HRTimeline
Pinnacle Wealth Planning Services, Inc.1,687$55.2K0.01%+3313F-HRTimeline
SITTNER & NELSON, LLC1,677$54.9K0.02%new13F-HRTimeline
Versant Capital Management, Inc1,640$53.6K0.01%+15213F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.1,529$50K<0.01%+41313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
NISA INVESTMENT ADVISORS, LLC1,376$45K<0.01%+1413F-HRTimeline
Smartleaf Asset Management LLC1,098$33.9K<0.01%+81813F-HRTimeline
Larson Financial Group LLC933$30.5K<0.01%+39013F-HRTimeline
LANARK FINANCIAL, INC.923$30.2K<0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …839$27.4K<0.01%+21213F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC795$26K<0.01%013F-HR/ATimeline
MassMutual Private Wealth & Trust, FSB784$25.6K<0.01%-4513F-HRTimeline
Bell Investment Advisors, Inc699$22.9K<0.01%013F-HRTimeline
UMB Bank, n.a.619$20.2K<0.01%-6713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK523$17.1K<0.01%-1513F-HRTimelineGroup
Advisory Services Network, LLC387$12.7K<0.01%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…318$10.4K<0.01%+25313F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC285$9K<0.01%013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP263$8.8K<0.01%new13F-HRTimelineGroup
Salomon & Ludwin, LLC230$7.98K<0.01%013F-HRTimeline
Sterling Capital Management LLC207$6.77K<0.01%-513F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…199$6.51K<0.01%013F-HR/ATimelineGroup
Sound Income Strategies, LLC182$6.08K<0.01%+4713F-HRTimeline
Aster Capital Management (DIFC) Ltd307$5.87K<0.01%new13F-HRTimeline
IFP Advisors, Inc173$5.66K<0.01%+17113F-HRTimeline
Kemnay Advisory Services Inc.171$5.59K<0.01%new13F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…137$4.48K<0.01%013F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…134$4.38K<0.01%new13F-HRTimelineGroup
Farther Finance Advisors, LLC114$3.81K<0.01%+4213F-HRTimeline
Parallel Advisors, LLC104$3.4K<0.01%013F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC86$2.81K<0.01%+2013F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC76$2.49K<0.01%new13F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/69$2.25K<0.01%new13F-HRTimelineGroup
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…65$2.13K<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust64$2.09K<0.01%013F-HRTimeline
BROWN, LISLE/CUMMINGS, INC.59$1.93K<0.01%new13F-HRTimeline
Root Financial Partners, LLC44$1.44K<0.01%+4213F-HRTimeline
SBI Securities Co., Ltd.37$1.21K<0.01%+613F-HRTimeline
Quarry LP37$1.21K<0.01%new13F-HRTimeline
Essential Partners LLC35$1.15K<0.01%+113F-HRTimeline
Annis Gardner Whiting Capital Advisors,…30$982<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…25$818<0.01%new13F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…21$687<0.01%013F-HRTimelineGroup
DecisionPoint Financial, LLC21$687<0.01%013F-HRTimeline
Caitong International Asset Management …17$556<0.01%+1313F-HRTimeline
Allworth Financial LP14$458<0.01%+513F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\9$294<0.01%-2213F-HRTimelineGroup
MAI Capital Management8$262<0.01%new13F-HRTimeline
Ankerstar Wealth, LLC6$196<0.01%013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC5$164<0.01%013F-HRTimelineGroup
Cedar Mountain Advisors, LLC5$164<0.01%013F-HRTimeline
Abound Wealth Management4$131<0.01%new13F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC3$99<0.01%013F-HRTimeline
Capital Advisors, Ltd. LLC8$00%013F-HRTimelineValue filed as zero, left out of ratios.
Covestor Ltd3$00%-3013F-HRTimelineValue filed as zero, left out of ratios.

Events

  • WASATCH ADVISORS LP reported 2,646,572 PDFS shares, 6.3% of the class, as of 2026-09-30, in a 13G filed 2026-10-09. 0000814133-26-000127

    Accepted , ingested