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PDF Solutions
PDFS

183 hedge funds and large institutions have $767M invested in PDF Solutions in 2025 Q3 according to their latest regulatory filings, with 37 funds opening new positions, 67 increasing their positions, 57 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

42% more first-time investments, than exits

New positions opened: 37 | Existing positions closed: 26

23% more capital invested

Capital invested by funds: $624M → $767M (+$144M)

18% more repeat investments, than reductions

Existing positions increased: 67 | Existing positions reduced: 57

6% more funds holding

Funds holding: 172 → 183 (+11)

0.71% more ownership

Funds ownership: 74.53% → 75.23% (+0.71%)

0% more funds holding in top 10

Funds holding in top 10: 3 → 3 (0)

Holders
183
Holders Change
+11
Holders Change %
+6.4%
% of All Funds
2.4%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
37
Increased
67
Reduced
57
Closed
26
Calls
$485K
Puts
–
Net Calls
+$485K
Net Calls Change
+$476K

Top Buyers

Rank Fund Capital Flow
1
ACH
ArrowMark Colorado Holdings
Colorado
+$8.45M
2
CC
Cannell Capital
Wyoming
+$7.37M
3
Loomis, Sayles & Company
Loomis, Sayles & Company
Massachusetts
+$7.02M
4
RC
Roubaix Capital
Colorado
+$4.51M
5
Squarepoint
Squarepoint
New York
+$4.4M

Top Sellers

Rank Fund Capital Flow
1
WA
Wasatch Advisors
Utah
-$14.1M
2
N
Nuveen
North Carolina
-$4.98M
3
Morgan Stanley
Morgan Stanley
New York
-$4.6M
4
SBH
Segall Bryant & Hamill
Illinois
-$4.23M
5
MCO
MAK Capital One
New York
-$3.42M
Name Holding Trade Value Shares
Change 		Change in
Stake
Fidelity Investments
26
Fidelity Investments
Massachusetts
$6.15M +$166K +7,622 +3%
RC
27
Roubaix Capital
Colorado
$5.33M +$4.51M +206,348 New
Bank of New York Mellon
28
Bank of New York Mellon
New York
$5.29M -$113K -5,165 -2%
HIM
29
Herald Investment Management
United Kingdom
$5.16M – – –
CP
30
CenterBook Partners
Connecticut
$4.56M +$385K +17,647 +11%
RHJA
31
Rice Hall James & Associates
California
$4.14M +$1.5M +68,574 +75%
Principal Financial Group
32
Principal Financial Group
Iowa
$3.99M -$15.4K -706 -0.5%
KLP
33
Kent Lake PR
Puerto Rico
$3.87M +$170K +7,779 +5%
Goldman Sachs
34
Goldman Sachs
New York
$3.63M +$1.69M +77,508 +123%
Public Sector Pension Investment Board (PSP Investments)
35
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$3.22M +$391K +17,895 +17%
PCM
36
Penn Capital Management
Pennsylvania
$3.03M +$61K +2,793 +2%
BCC
37
Bridge City Capital
Oregon
$3.02M +$723K +33,085 +40%
MOACM
38
Mutual of America Capital Management
New York
$2.79M +$39.9K +1,827 +2%
Arrowstreet Capital
39
Arrowstreet Capital
Massachusetts
$2.79M +$1.48M +67,835 +169%
Invesco
40
Invesco
Georgia
$2.78M +$232K +10,626 +11%
ECM
41
ExodusPoint Capital Management
New York
$2.73M +$2.05M +94,074 +803%
PCM
42
Prelude Capital Management
New York
$2.61M +$2.21M +101,051 New
UBS Group
43
UBS Group
Switzerland
$2.57M -$444K -20,351 -17%
Renaissance Technologies
44
Renaissance Technologies
New York
$2.33M +$454K +20,800 +30%
Acadian Asset Management
45
Acadian Asset Management
Massachusetts
$2.31M -$2.65M -121,502 -58%
AG
46
Algert Global
California
$2.31M -$337K -15,428 -15%
Legal & General Group
47
Legal & General Group
United Kingdom
$2.24M -$51.2K -2,343 -3%
RhumbLine Advisers
48
RhumbLine Advisers
Massachusetts
$2.24M -$992K -45,425 -34%
DIA
49
Dana Investment Advisors
Wisconsin
$2.2M +$567K +25,985 +44%
N
50
Nuveen
North Carolina
$2.08M -$4.98M -228,005 -74%
1
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3 4 5

PDFS Hedge Fund Activity: Q3 2025 in Review

183 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in PDF Solutions (PDFS) for Q3 2025, worth a combined $767M — up 23% from $624M a quarter earlier.

Buyers outnumbered sellers: 37 funds opened new PDFS positions and 26 closed out — a net gain of 11 holders — while 67 added to existing stakes and 57 trimmed.

The largest buyer was ArrowMark Colorado Holdings, adding an estimated $8.45M. The largest seller was Wasatch Advisors, cutting an estimated $14.1M.

  • 183 institutional investors held PDF Solutions (PDFS) as of Q3 2025, up from 172 in Q2 2025.
  • Funds reported $767M of PDF Solutions stock for Q3 2025, up 23% quarter-over-quarter.
  • 37 funds opened new PDF Solutions positions in Q3 2025 and 26 closed out, a net change of +11 holders.
  • The largest PDF Solutions buyer in Q3 2025 was ArrowMark Colorado Holdings, an estimated $8.45M added.
  • The largest PDF Solutions seller in Q3 2025 was Wasatch Advisors, an estimated $14.1M sold.

Based on aggregated 13F filings for Q3 2025.