PDF Solutions Ownership | Who Owns PDF Solutions?

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PDF Solutions Ownership Summary

PDF Solutions is owned by 81.52% institutional investors, 18.77% insiders. Blackrock is the largest institutional shareholder, holding 12.49% of PDFS shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.30% of its assets in PDF Solutions shares.

PDFS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	PDF Solutions	81.52%	18.77%	-0.29%
Sector	Technology Stocks	36.27%	15.30%	48.43%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	4.81M	12.49%	$174.87M
Blackrock funding, inc. /de	4.87M	12.31%	$159.17M
Vanguard group	3.09M	7.82%	$88.14M
Needham investment management	2.02M	5.12%	$66.16M
Ranger investment management	1.28M	3.24%	$41.86M
William blair investment management	1.26M	3.18%	$41.07M
State street	1.19M	3.02%	$39.00M
Barrow hanley mewhinney & strauss	1.14M	2.89%	$37.31M
Ophir asset management pty	1.14M	2.88%	$37.20M
Snyder capital management l p	1.06M	2.68%	$34.69M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Samjo management	919.96K	13.01%	$30.09M
Silverberg bernstein capital management	472.88K	8.52%	$15.47M
Divisar capital management	623.36K	5.20%	$20.39M
Ophir asset management pty	1.14M	4.33%	$37.20M
Gem investment advisors	105.53K	3.39%	$3.45M
Needham investment management	2.02M	3.38%	$66.16M
Ranger investment management	1.28M	3.03%	$41.86M
Roubaix capital	181.94K	2.78%	$5.95M
Millrace asset group	59.29K	2.09%	$2.16M
Kent lake pr	150.00K	1.96%	$3.87M

Top Buyers

Holder	Shares	% Assets	Change
Barrow hanley mewhinney & strauss	1.14M	0.12%	1.14M
Ophir asset management pty	1.14M	4.33%	414.22K
Loomis sayles & co l p	827.11K	0.04%	361.93K
Df dent	352.96K	0.22%	352.96K
Cannell capital	337.31K	1.33%	337.31K

Top Sellers

Holder	Shares	% Assets	Change
Silvercrest asset management group	-	-	-290.64K
Samjo management	919.96K	13.01%	-231.06K
Segall bryant & hamill	-	-	-197.69K
Mak capital one	-	-	-160.02K
Readystate asset management lp	-	-	-148.60K

New Positions

Holder	Shares	% Assets	Change	Value
Barrow hanley mewhinney & strauss	1.14M	0.12%	1.14M	$37.31M
Df dent	352.96K	0.22%	352.96K	$11.55M
Cannell capital	337.31K	1.33%	337.31K	$8.71M
Vanguard fiduciary trust	221.08K	0.00%	221.08K	$7.23M
Inspire advisors	84.17K	0.22%	84.17K	$2.75M

Sold Out

Holder	Change
Tortoise investment management	-2.00
Flagship harbor advisors	-6.00
Coldstream capital management	-7.00
Corecap advisors	-11.00
Clearstead trust	-13.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	207	11.89%	32,218,173	5.27%	81	1.35%	111	9.90%	60	-
Dec 31, 2025	134	-25.56%	21,706,868	-26.88%	54	0.96%	73	-33.03%	40	-21.57%
Sep 30, 2025	113	-29.81%	20,954,433	-24.97%	53	1.05%	67	-32.32%	31	-20.51%
Jun 30, 2025	166	-0.60%	28,916,246	5.23%	73	1.49%	102	15.91%	41	-25.45%
Mar 31, 2025	165	-7.30%	27,456,377	-2.89%	70	1.32%	87	-	54	-14.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	2.22M	5.30%	855.00
Needham Aggressive Growth Retail	1.59M	3.98%	122.50K
Vanguard US Total Market Shares ETF	1.13M	2.88%	-
Vanguard Total Stock Mkt Idx Inv	998.56K	2.50%	-
Ranger Small Cap	882.01K	2.21%	110.98K
Janus Henderson US Small Cap Growth	840.21K	2.11%	-9.37K
Janus Henderson Venture D	840.21K	2.10%	-
Vanguard Information Technology ETF	774.39K	1.94%	4.23K
iShares Russell 2000 ETF	760.85K	1.82%	7.02K
Janus Henderson US Small Cap Growth MA	596.09K	1.54%	596.00K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 13, 2025	GUSTAFSON MICHAEL B	-	Buy	$145.88K
Feb 24, 2025	GUSTAFSON MICHAEL B	-	Buy	$92.24K
Feb 24, 2025	KIBARIAN JOHN KACHIG	PRESIDENT AND CEO	Buy	$783.32K
Feb 25, 2025	KIBARIAN JOHN KACHIG	PRESIDENT AND CEO	Buy	$345.89K
Dec 17, 2024	Strojwas Andrzej	CTO	Sell	$7.64K

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	-	-
2026 Q1	-	-
2025 Q4	-	-
2025 Q3	-	-
2025 Q2	1	-

PDFS Ownership FAQ

Who owns the most shares of PDF Solutions?

PDF Solutions’s largest shareholders are Blackrock (4.81M shares, 12.49%), Blackrock funding, inc. /de (4.87M shares, 12.31%), and Vanguard group (3.09M shares, 7.82%). Together, they hold 32.62% of PDF Solutions’s total shares outstanding.

Does Blackrock own PDF Solutions?

Yes, BlackRock owns 12.49% of PDF Solutions, totaling 4.81M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 174.87M$. In the last quarter, BlackRock decreased its holdings by -45.781K shares, a -0.94% change.

Who is PDF Solutions’s biggest shareholder by percentage of total assets invested?

Samjo management is PDF Solutions’s biggest shareholder by percentage of total assets invested, with 13.01% of its assets in 919.96K PDF Solutions shares, valued at 30.09M$.

Who is the top mutual fund holder of PDF Solutions shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of PDF Solutions shares, with 5.30% of its total shares outstanding invested in 2.22M PDF Solutions shares.

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