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Willdan Group
WLDN

256 hedge funds and large institutions have $1.07B invested in Willdan Group in 2025 Q3 according to their latest regulatory filings, with 89 funds opening new positions, 70 increasing their positions, 77 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed

402% more call options, than puts

Call options by funds: $44.5M | Put options by funds: $8.87M

287% more first-time investments, than exits

New positions opened: 89 | Existing positions closed: 23

57% more capital invested

Capital invested by funds: $679M → $1.07B (+$389M)

35% more funds holding

Funds holding: 190 → 256 (+66)

0.82% more ownership

Funds ownership: 74.83% → 75.65% (+0.82%)

9% less repeat investments, than reductions

Existing positions increased: 70 | Existing positions reduced: 77

33% less funds holding in top 10

Funds holding in top 10: 3 → 2 (-1)

Holders
256
Holders Change
+66
Holders Change %
+34.74%
% of All Funds
3.36%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.03%
New
89
Increased
70
Reduced
77
Closed
23
Calls
$44.5M
Puts
$8.87M
Net Calls
+$35.7M
Net Calls Change
+$34.8M

Top Buyers

1
Vanguard Group
Vanguard Group
Pennsylvania
+$21.7M
2
Two Sigma Investments
Two Sigma Investments
New York
+$19.3M
3
DCM
Driehaus Capital Management
Illinois
+$11.7M
4
TI
Trexquant Investment
Connecticut
+$11.4M
5
Two Sigma Advisers
Two Sigma Advisers
New York
+$10.7M

Top Sellers

1
Acadian Asset Management
Acadian Asset Management
Massachusetts
-$21.6M
2
PCM
Portolan Capital Management
Massachusetts
-$14.3M
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$13.8M
4
WA
Wasatch Advisors
Utah
-$13.3M
5
SCA
Summit Creek Advisors
Minnesota
-$12.4M
Name Holding Trade Value Shares
Change 		Change in
Stake
Swedbank
26
Swedbank
Sweden
$12.4M -$7.05M -74,500 -37%
First Trust Advisors
27
First Trust Advisors
Illinois
$12.1M -$2.91M -30,725 -20%
DCM
28
Driehaus Capital Management
Illinois
$12M +$11.7M +123,821 New
Lord, Abbett & Co
29
Lord, Abbett & Co
New Jersey
$11.4M -$11.7M -123,528 -51%
Charles Schwab
30
Charles Schwab
California
$11.3M +$7.23M +76,383 +187%
Jane Street
31
Jane Street
New York
$11.2M +$6.99M +73,846 +177%
Walleye Capital
32
Walleye Capital
New York
$10.3M +$10.1M +106,682 New
Ameriprise
33
Ameriprise
Minnesota
$10.2M +$2.32M +24,492 +30%
UBS Group
34
UBS Group
Switzerland
$10.2M +$8.42M +89,007 +537%
AG
35
Algert Global
California
$9.89M +$9.33M +98,621 +2,680%
Janus Henderson Group
36
Janus Henderson Group
United Kingdom
$8.89M +$8.7M +91,970 New
Tudor Investment Corp
37
Tudor Investment Corp
Connecticut
$8.61M +$191K +2,014 +2%
KCM
38
Kennedy Capital Management
Missouri
$8.04M +$2.47M +26,085 +46%
EIM
39
Essex Investment Management
Massachusetts
$7.63M -$2.68M -28,312 -26%
BA
40
Bard Associates
Illinois
$7.2M -$5.32M -56,231 -43%
CSS
41
Cubist Systematic Strategies
Connecticut
$7.12M +$3.54M +37,443 +103%
KCM
42
Kornitzer Capital Management
Kansas
$7.08M +$4.28M +45,220 +162%
Lazard Asset Management
43
Lazard Asset Management
New York
$6.87M -$2.39M -25,203 -26%
JF
44
Jump Financial
Illinois
$6.6M +$3.67M +38,800 +132%
Bank of New York Mellon
45
Bank of New York Mellon
New York
$5.95M -$225K -2,379 -4%
Russell Investments Group
46
Russell Investments Group
United Kingdom
$5.87M +$684K +7,229 +14%
AQR Capital Management
47
AQR Capital Management
Connecticut
$5.86M -$796K -8,408 -12%
PAM
48
Panagora Asset Management
Massachusetts
$5.58M +$31.3K +331 +0.6%
Mercer Global Advisors
49
Mercer Global Advisors
Colorado
$5.38M +$9.54M +100,759 New
Renaissance Technologies
50
Renaissance Technologies
New York
$5.26M -$5.04M -53,200 -49%
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WLDN Hedge Fund Activity: Q3 2025 in Review

256 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Willdan Group (WLDN) for Q3 2025, worth a combined $1.07B — up 57% from $679M a quarter earlier.

Buyers outnumbered sellers: 89 funds opened new WLDN positions and 23 closed out — a net gain of 66 holders — while 70 added to existing stakes and 77 trimmed.

The largest buyer was Vanguard Group, adding an estimated $21.7M. The largest seller was Acadian Asset Management, cutting an estimated $21.6M.

  • 256 institutional investors held Willdan Group (WLDN) as of Q3 2025, up from 190 in Q2 2025.
  • Funds reported $1.07B of Willdan Group stock for Q3 2025, up 57% quarter-over-quarter.
  • 89 funds opened new Willdan Group positions in Q3 2025 and 23 closed out, a net change of +66 holders.
  • The largest Willdan Group buyer in Q3 2025 was Vanguard Group, an estimated $21.7M added.
  • The largest Willdan Group seller in Q3 2025 was Acadian Asset Management, an estimated $21.6M sold.

Based on aggregated 13F filings for Q3 2025.