PDF Solutions Ownership | Who Owns PDF Solutions?

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PDF Solutions Ownership Summary

PDF Solutions is owned by 70.24% institutional investors, 19.47% insiders, and 10.29% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 12.81% of PDFS shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 4.75% of its assets in PDF Solutions shares.

PDFS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	PDF Solutions	70.24%	19.47%	10.29%
Sector	Technology Stocks	38.48%	12.71%	48.82%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	4.96M	12.81%	$134.28M
Blackrock	4.81M	12.49%	$174.87M
Vanguard group	3.17M	8.20%	$85.92M
Needham investment management	1.82M	4.70%	$49.22M
Wasatch advisors lp	1.19M	3.06%	$32.13M
State street	1.12M	2.92%	$40.91M
William blair investment management	1.06M	2.75%	$28.80M
Samjo management	975.91K	2.52%	$26.43M
Emerald advisers	924.35K	2.39%	$25.03M
Dimensional fund advisors lp	910.31K	2.35%	$24.65M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Samjo management	975.91K	9.96%	$26.43M
Silverberg bernstein capital management	300.34K	7.16%	$8.13M
Needham investment management	1.82M	3.80%	$49.22M
Divisar capital management	620.71K	3.65%	$16.81M
Millrace asset group	59.29K	2.09%	$2.16M
Ranger investment management	886.81K	1.52%	$24.01M
Emerald mutual fund advisers trust	618.41K	1.02%	$16.75M
Emerald advisers	924.35K	0.97%	$25.03M
Snyder capital management l p	779.05K	0.44%	$21.10M
Herald investment management	75.00K	0.33%	$2.03M

Top Buyers

Holder	Shares	% Assets	Change
William blair investment management	1.06M	0.07%	161.31K
Blackrock funding, inc. /de	4.96M	0.00%	97.56K
Needham investment management	1.82M	3.80%	57.95K
Thrivent financial for lutherans	418.69K	0.02%	53.04K
Ubs group	81.78K	0.00%	48.31K

Top Sellers

Holder	Shares	% Assets	Change
Ophir asset management pty	-	-	-784.07K
Silvercrest asset management group	-	-	-290.64K
Morgan stanley	467.55K	0.00%	-188.13K
Assenagon asset management	66.86K	0.00%	-160.84K
Readystate asset management lp	-	-	-148.60K

New Positions

Holder	Shares	% Assets	Change	Value
Significant wealth partners	10.01K	0.14%	10.01K	$270.96K
Sg americas securities	9.26K	0.00%	9.26K	$337.00K
Aquatic capital management	5.02K	0.00%	5.02K	$135.97K
Us bancorp \de\	79.00	-	79.00	$2.14K
Ifp advisors	9.00	-	9.00	$244.00

Sold Out

Holder	Change
Allworth financial lp	-10.00
Capital performance advisors llp	-17.00
Covestor	-19.00
Synergy asset management	-20.00
Srs capital advisors	-23.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	165	-7.30%	27,456,377	-2.89%	70	1.32%	87	-	54	-14.29%
Dec 31, 2024	85	-51.98%	13,383,828	-52.84%	34	0.64%	44	-48.84%	24	-62.50%
Sep 30, 2024	177	1.72%	28,382,195	1.55%	73	1.40%	86	-	64	-1.54%
Jun 30, 2024	171	-7.57%	27,939,319	-0.23%	72	1.37%	84	13.51%	65	-15.58%
Mar 31, 2024	185	-7.50%	28,004,156	-0.62%	72	1.34%	74	-39.84%	77	48.08%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	1.86M	4.75%	-1.16K
Needham Aggressive Growth Retail	1.24M	3.16%	49.10K
Vanguard US Total Market Shares ETF	1.13M	2.88%	-
Vanguard Total Stock Mkt Idx Inv	1.11M	2.84%	-
Wasatch Ultra Growth	1.06M	2.70%	193.92K
iShares Russell 2000 ETF	784.77K	2.01%	384.00
Janus Henderson US Small Cap Growth	742.42K	1.90%	146.33K
Janus Henderson Venture D	742.42K	1.90%	146.33K
Vanguard Information Technology ETF	733.58K	1.87%	4.70K
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
2025 Q2	1	-
2025 Q1	3	-
2024 Q4	-	4
2024 Q3	-	-
2024 Q2	-	4

PDFS Ownership FAQ

Who owns the most shares of PDF Solutions?

PDF Solutions’s largest shareholders are Blackrock funding, inc. /de (4.96M shares, 12.81%), Blackrock (4.81M shares, 12.49%), and Vanguard group (3.17M shares, 8.20%). Together, they hold 33.49% 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 9.96% of its assets in 975.91K PDF Solutions shares, valued at 26.43M$.

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 4.75% of its total shares outstanding invested in 1.86M PDF Solutions shares.

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