PDF Solutions Inc

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PDF Solutions Inc
TickerPDFS
CIK #0001120914
CUSIP693282105
SectorTechnology - Services-Computer Programming Services
Address333 West San Carlos Street Suite 700, San Jose, CA 95110
Source [EDGAR]
CIK Filing 2011 - 2026
[0001120914] 10-K
[0001120914] 10-Q
[0001120914] 3
[0001120914] 4
[0001120914] 5
[0001120914] 8-K
[0001120914] SC 13D
[0001120914] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Needham Investment Management LLC PDF Solutions Inc [2026-05-14] 0.0
Needham Investment Management LLC PDF Solutions Inc [2025-11-13] 0.0
Cowen Prime Advisors LLC PDF Solutions Inc [2023-08-07] 0.0
Cowen Prime Advisors LLC PDF Solutions Inc [2023-02-03] 4.0
Cowen Prime Advisors LLC PDF Solutions Inc [2022-02-09] 5.0
Advantest Corp PDF Solutions Inc [2020-08-06] 0.1
Cowen Prime Services LLC PDF Solutions Inc [2020-06-04] 5.0
Invesco Ltd PDF Solutions Inc [2020-02-13] 0.9
Vanguard Group Inc PDF Solutions Inc [2019-02-11] 5.74
Dimensional Fund Advisors LP PDF Solutions Inc [2019-02-08] 6.04
OppenheimerFunds Inc PDF Solutions Inc [2019-01-18] 9.31
VIEX Capital Advisors LLC PDF Solutions Inc [2018-11-20] 5.5
FMR LLC PDF Solutions Inc [2018-02-13] 0.0
BlackRock Inc PDF Solutions Inc [2017-01-30] 5.5
Cardinal Capital Management LLC /CT PDF Solutions Inc [2016-02-12] 0.0
BlackRock Inc PDF Solutions Inc [2016-01-28] 5.0
TimesSquare Capital Management LLC PDF Solutions Inc [2015-02-11] 5.0
Concept Capital Markets LLC PDF Solutions Inc [2015-02-10] 4.92
Concept Capital Markets LLC PDF Solutions Inc [2014-12-15] 5.49
Concept Capital Markets LLC PDF Solutions Inc [2014-12-15] 12.91
Shannon River Fund Management LLC PDF Solutions Inc [2014-04-11] 0.24
BlackRock Inc PDF Solutions Inc [2014-01-30] 5.0
FMR LLC PDF Solutions Inc [2013-02-14] 0.0
Form 3/4/5 Filer 2011 - 2026
PDF Solutions Inc
Gustafson Michael B
Chan Chi-Foon
Bronson Joseph R
Raza Adnan
Erba Nancy
Li Ye Jane
Zhang Shuo
Strojwas Andrzej
Michaels Kimon
Kibarian John Kachig
Iansiti Marco
Yin Gerald Zheyao
Christine Russell
Hartgring Cornelis
Walker Gregory C
Lanza Lucio
Kim KwangH
Heinrichs R Stephen
Yu Albert YC
Caulfield Thomas
Shahbazian Michael
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Strojwas Andrzej
Common Stock
2026-01-01 Tax withheld 2,762 $28.53 78,800
Raza Adnan
Common Stock
2026-01-01 Tax withheld 5,498 $28.53 156,858
Michaels Kimon
Common Stock
2025-12-09 Gift 5,070 $0.00
Raza Adnan
Common Stock
2025-08-01 Grant 35,000
Strojwas Andrzej
Common Stock
2025-08-01 Grant 8,000
Michaels Kimon
Common Stock
2025-07-01 Tax withheld 798 $21.87 17,452
Gustafson Michael B
Common Stock
2025-07-01 Grant 7,429
Li Ye Jane
Common Stock
2025-07-01 Grant 7,429
Chan Chi-Foon
Common Stock
2025-07-01 Grant 7,429
Erba Nancy
Common Stock
2025-07-01 Grant 7,429
Strojwas Andrzej
Common Stock
2025-07-01 Tax withheld 2,497 $21.87 54,609
Bronson Joseph R
Common Stock
2025-07-01 Grant 7,429
Raza Adnan
Common Stock
2025-07-01 Tax withheld 4,921 $21.87 107,622
Zhang Shuo
Common Stock
2025-07-01 Grant 7,429
Gustafson Michael B
Common Stock
2025-05-13 Buy 7,500 $19.45 145,875
Kibarian John Kachig
Common Stock
2025-02-25 Buy 15,644 $22.11 345,889
Gustafson Michael B
Common Stock
2025-02-24 Buy 4,000 $23.06 92,240
Kibarian John Kachig
Common Stock
2025-02-24 Buy 34,356 $22.80 783,317
Strojwas Andrzej
Common Stock
2025-01-01 Tax withheld 2,833
Raza Adnan
Common Stock
2025-01-01 Tax withheld 5,258
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 209 32,258,783
2025-12-31 188 30,627,668
2025-09-30 183 29,501,445
2025-06-30 173 28,849,926
2025-03-31 169 27,290,879
2024-12-31 179 28,043,266
2024-09-30 177 28,237,824
2024-06-30 173 27,557,180
2024-03-31 182 28,991,156
2023-12-31 199 28,790,213
2023-09-30 183 26,421,088
2023-06-30 181 27,489,119
Form 13F Holdings
Firm Period DFND Voting Shares
Wasatch Advisors LP [2026-06-30] SOLE 966,699 1,380,739
Silverberg Bernstein Capital Management LLC [2026-06-30] SOLE 0 465,823
Davenport & Company LLC [2026-06-30] SOLE 419 150,419
Bouvel Investment Partners LLC [2026-06-30] SOLE 63,352 63,352
Kings Path Partners LLC [2026-06-30] SOLE 0 19,645
Louisiana State Employees Retirement System [2026-06-30] SOLE 14,200 14,200
Alaska Retirement Management Board [2026-06-30] SOLE 13,713 13,713
Central Pacific Bank - Trust Division [2026-06-30] DFND 0 12,671
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 139 11,926
Yousif Capital Management LLC [2026-06-30] SOLE 2,282 9,525
Significant Wealth Partners LLC [2026-06-30] SOLE 0 8,949
Commonwealth of Pennsylvania Public School Empls Retrmt SYS [2026-06-30] SOLE 8,936 8,936
Counterpoint Mutual Funds LLC [2026-06-30] SOLE 6,240 6,240
ZWJ Investment Counsel Inc [2026-06-30] SOLE 0 5,813
Net Worth Advisory Group [2026-06-30] SOLE 5,161 5,161
Assenagon Asset Management SA [2026-06-30] SOLE 4,901 4,901
NorthCrest Asset Manangement LLC [2026-06-30] SOLE 18 3,877
Sequoia Financial Advisors LLC [2026-06-30] SOLE 0 3,591
1620 Investment Advisors Inc [2026-06-30] SOLE 2,521 2,521
Gamma Investing LLC [2026-06-30] DFND 2,281 2,281
Versant Capital Management Inc [2026-06-30] SOLE 1,610 1,610
MassMutual Private Wealth & Trust FSB [2026-06-30] SOLE 719 719
Farther Finance Advisors LLC [2026-06-30] SOLE 0 201
IFP Advisors LLC [2026-06-30] SOLE 173 173
Fortitude Family Office LLC [2026-06-30] SOLE 60 60
Farmers & Merchants Investments Inc [2026-06-30] SOLE 21 21
Capital Advisors Ltd LLC [2026-06-30] SOLE 0 8
JFS Wealth Advisors LLC [2026-06-30] SOLE 0 6
Abound Wealth Management [2026-06-30] SOLE 0 5
Cedar Mountain Advisors LLC [2026-06-30] SOLE 0 5
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