PDF Solutions

PDFS • NASDAQ

PDF Solutions is a software - application company in the technology sector on NASDAQ, led by Chi-Foon Chan, with a market cap of $1.2B. As of Q3 2025, 75% of shares are held by 178 institutional investors, with BlackRock, Inc. as the largest holder at 12.31%.

DirectorChi-Foon Chan

Market Cap$1.2B

Software - Application

Technology

Employees493.0

Websitepdf.com

Country

United States of America

Overview

Overview of institutional ownership in PDFS as of Q3 2025 with a market cap of $1.0B

All Institutions

Institutions: 178
Value Held: $766.1M
Shares Held: 29.7M
Avg Position: $4.3M
Median Position: $474.3K

Hedge Funds

Hedge Funds: 27
Value Held: $158.1M
Shares Held: 6.1M
Avg Position: $5.9M
Median Position: $1.7M

Ownership Breakdown

Institutional (non-HF)

59.62%

$608.0M

Hedge Funds

15.51%

$158.1M

Retail & Other

24.87%

$253.6M

Based on market cap of $1.0B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in PDFS as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$125.6M 0.00% of portfolio	12.31% 4.9M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$81.5M 0.00% of portfolio	7.99% 3.2M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short	George Austin Needham CEO	$52.1M 3.64% of portfolio	5.11% 2.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.4B
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	Brent Walker Gledhill CEO	$34.8M 0.09% of portfolio	3.42% 1.3M shares	Q2 2020 Held for 5y 5m	$38.7B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$29.6M 0.00% of portfolio	2.90% 1.1M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
S Samjo Management, LLC Hedge Fund•Long/Short	Andrew Nolan Wiener Managing Partner	$28.9M 11.05% of portfolio	2.84% 1.1M shares	Q4 2023 Held for 1y 11m	$261.8M
Ranger Investment Management, L.P. Long Only Manager	Andrew Ferguson Hill President	$27.3M 1.90% of portfolio	2.68% 1.1M shares	Q1 2020 Held for 5y 8m	$1.4B
EMERALD ADVISERS INC/PA Long Only Manager	Kenneth George Mertz CEO	$24.3M 0.78% of portfolio	2.39% 942.7K shares	Q2 2022 Held for 3y 5m	$3.1B
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$20.9M 0.00% of portfolio	2.05% 811.3K shares	≤ Q2 2013 Held for 12y 5m+	$466.32B
SNYDER CAPITAL MANAGEMENT L P Long Only Manager	Gary Michael Rafferty CFO	$20.7M 0.39% of portfolio	2.03% 800.4K shares	Q2 2014 Held for 11y 5m	$5.3B

Net Capital Flow

Institutional buying and selling activity for PDFS in Q3 2025

Traded: +$16.9M
Buyers: 100
Sellers: 83
Total Bought: +$85.7M
Total Sold: −$68.8M
Avg Position: $3.7M

Biggest Buyers

Institution	Net Bought	Current Position
A Arrowpoint Asset Management, LLC Hedge Fund•Multi-Strategy	+$10.0M +386.8K shares	$11.7M 451.8K shares
CANNELL CAPITAL LLC Hedge Fund•Long/Short	+$8.7M +337.3K shares	$8.7M 337.3K shares
LOOMIS SAYLES & CO L P Long Only Manager	+$8.3M +321.6K shares	$9.4M 363.2K shares
R Roubaix Capital, LLC Hedge Fund•Long/Short	+$5.3M +206.3K shares	$5.3M 206.3K shares
S Squarepoint Ops LLC Hedge Fund•Quant	+$5.2M +201.3K shares	$6.6M 254.5K shares
S Samjo Management, LLC Hedge Fund•Long/Short	+$4.8M +184.9K shares	$28.9M 1.1M shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	+$4.2M +162.4K shares	$34.8M 1.3M shares
NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short	+$2.7M +105.1K shares	$52.1M 2.0M shares
SPRINGBOK CAPITAL MANAGEMENT, LLC Fund of Funds	+$2.6M +101.1K shares	$2.6M 101.1K shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	+$2.4M +94.1K shares	$2.7M 105.8K shares

Biggest Sellers

Institution	Net Sold	Current Position
WASATCH ADVISORS INC Long Only Manager	−$16.6M −643.6K shares	$14.1M 547.8K shares
N Nuveen, LLC Institution	−$5.9M −228.0K shares	$2.1M 80.4K shares
MORGAN STANLEY RIA/Wealth	−$5.4M −210.4K shares	$9.2M 357.3K shares
SEGALL BRYANT & HAMILL Long Only Manager	−$4.2M −197.7K shares	Sold Off 0 shares
D D. E. Shaw & Co., Inc. Institution	−$3.6M −139.4K shares	$864.1K 33.5K shares
MAK CAPITAL ONE LLC Hedge Fund•Multi-Strategy	−$3.4M −160.0K shares	Sold Off 0 shares
ACADIAN ASSET MANAGEMENT LLC Long Only Manager	−$3.1M −121.5K shares	$2.3M 89.7K shares
Q Qube Research & Technologies Ltd Institution	−$2.6M −98.9K shares	$1.5M 57.9K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$1.7M −64.8K shares	$962.8K 37.3K shares
RHUMBLINE ADVISERS Long Only Manager	−$1.2M −45.4K shares	$2.2M 86.9K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited PDFS in Q3 2025

New Positions: 11
New Value: $11.2M
Exited Positions: 26
Exited Value: $16.1M

New Positions

Institution	Position Value
CANNELL CAPITAL LLC Hedge Fund•Long/Short	$8.7M 337.3K shares
D DRW Securities, LLC Institution	$621.5K 24.0K shares
P PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. Hedge Fund•Long/Short	$516.4K 20.0K shares
Numerai GP LLC Hedge Fund•Quant	$386.9K 15.0K shares
I INCEPTIONR LLC Hedge Fund•Quant	$326.6K 12.6K shares
Susquehanna Portfolio Strategies, LLC Private Equity	$215.7K 8.4K shares
JustInvest LLC Long Only Manager	$203.9K 7.9K shares
ISAM Funds Ltd Hedge Fund•Quant	$100.4K 3.9K shares
Johnson Financial Group, Inc. RIA/Wealth	$82.6K 3.2K shares
Sontag Advisory, LLC RIA/Wealth	$4.5K 174.0 shares

Exited Positions

Institution	Previous Position
SEGALL BRYANT & HAMILL Long Only Manager	$4.2M 197.7K shares
MAK CAPITAL ONE LLC Hedge Fund•Multi-Strategy	$3.4M 160.0K shares
Marshall Wace LLP Institution	$1.0M 48.7K shares
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$996.4K 46.6K shares
Janney Montgomery Scott LLC RIA/Wealth	$945.0K 44.2K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$778.8K 36.4K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$679.4K 31.8K shares
FEDERATED INVESTORS INC /PA/ Long Only Manager	$635.7K 29.7K shares
Magnetar Financial LLC Hedge Fund•Multi-Strategy	$507.2K 23.7K shares
A Amundi Institution	$452.4K 20.0K shares

Options Activity

Institutions with the largest Call and Put options positions in PDFS as of Q3 2025

Call Positions: 1
Call Value: $224.6K
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$224.6K 87.0 contracts

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

Institutions with PDFS as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
S Samjo Management, LLC Hedge Fund•Long/Short	Andrew Nolan Wiener Managing Partner	11.05% $28.9M	2.84% 1.1M shares	Q4 2023 Held for 1y 11m	$261.8M
S Silverberg Bernstein Capital Management LLC RIA/Wealth	Irwin Warren Silverberg Managing Partner	7.25% $11.8M	1.16% 458.8K shares	Q4 2023 Held for 1y 11m	$163.4M
D Divisar Capital Management LLC Hedge Fund•Long/Short	Steven Richard Baughman CEO	4.81% $17.7M	1.73% 684.1K shares	Q4 2016 Held for 8y 11m	$367.6M
NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short	George Austin Needham CEO	3.64% $52.1M	5.11% 2.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.4B
R Roubaix Capital, LLC Hedge Fund•Long/Short	Christopher Edmund Hillary CEO	2.42% $5.3M	0.52% 206.3K shares	Q3 2025 Held for 2 months	$220.3M
CANNELL CAPITAL LLC Hedge Fund•Long/Short	James Carlo Cannell President	2.29% $8.7M	0.85% 337.3K shares	Q3 2025 Held for 2 months	$380.9M
K Kent Lake PR LLC Hedge Fund•Long/Short	Benjamin Natter Managing Partner	1.98% $3.9M	0.38% 150.0K shares	Q2 2025 Held for 5 months	$195.5M
Ranger Investment Management, L.P. Long Only Manager	Andrew Ferguson Hill President	1.90% $27.3M	2.68% 1.1M shares	Q1 2020 Held for 5y 8m	$1.4B
EMERALD MUTUAL FUND ADVISERS TRUST Long Only Manager	Stacey Lynn Sears President	0.82% $15.4M	1.51% 594.6K shares	Q2 2022 Held for 3y 5m	$1.9B
Bridge City Capital, LLC Long Only Manager	Alexander Jackson Woodward President	0.81% $3.0M	0.30% 116.8K shares	Q1 2025 Held for 8 months	$374.5M

Hedge Fund Spotlight

Discover hedge funds investing in PDFS

Quantinno Capital Management LP

Hedge Fund • Market Neutral

Portfolio ManagerHoon Nmn Kim

Portfolio Value: $36.6B
Positions: 2,911
Last Reported: Q3 2025

Sector Allocation

Position in PDF Solutions

Market Value: $374.7K
Shares Held: 14.5K
Portfolio Weight: 0.00%
Owned Since: 2025-Q2

Top Holding	Sector	Market Value	Weight
1 Nvidia NVDA	Semiconductors Technology	$2.1B	5.71%
2 Apple AAPL	Consumer Electronics Technology	$1.9B	5.06%
3 Microsoft MSFT	Software - Infrastructure Technology	$1.4B	3.93%