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WLDN

Willdan Group, Inc.

Company with tickers: WLDN

CIK
1370450
CUSIP
96924N100
Shares Outstanding
15,110,606
13F Activity (30d)
193 filings 187 filers
Holders: 249
Total Value: $871,480,032
Total Shares: 11,382,970
Showing 1–100 of 257 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 249 13F filers · Δ vs Dec 31, 2025
Top Holder
11.6%
Jun 2023 → Mar 2026 · range 9.1% – 16.9%
+0.1 pts
Top 5
28.7%
Jun 2023 → Mar 2026 · range 27.8% – 54.3%
−1.6 pts
Top 10
42.2%
Jun 2023 → Mar 2026 · range 37.9% – 72.3%
+0.6 pts
HHI
301
Jun 2023 → Mar 2026 · range 293 – 795
Broadly held −42

Quarterly Activity

vs Dec 31, 2025
New
48
Increased
100
Decreased
77
Sold Out
66
Unchanged
24
Holder count: -18
Institutional value: -26.6%
Shares held: -0.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega TWO SIGMA INVESTMENTS, LP +172,285 468,022
Large WASATCH ADVISORS LP +120,110 381,581
Mega JANE STREET GROUP, LLC +96,788 162,472
Mega AMERIPRISE FINANCIAL INC +92,456 272,354
Large Swedbank AB +61,900 236,700

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid Divisadero Street Capital Management, LP −133,945 164,987
Large MERCER GLOBAL ADVISORS INC /ADV −91,774 9,075
Small BARD ASSOCIATES INC −73,167 200
Large LORD, ABBETT & CO. LLC −69,211 76,465
Mega CITADEL ADVISORS LLC −60,579 82,579

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 613,327 $46,956,315
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 485,181 $37,145,457
Mid NEUMEIER POMA INVESTMENT COUNSEL LLC 215,660 $16,510,929
Mega VANGUARD FIDUCIARY TRUST CO 95,754 $7,330,926
Large Thrivent Financial for Lutherans 60,465 $4,629,199

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 1,201,517 $124,549,249
Small Summit Creek Advisors LLC 169,188 $17,538,028
Large TWO SIGMA ADVISERS, LP 154,300 $15,994,738
Mid SHELTON CAPITAL MANAGEMENT 100,000 $10,366,000
Mega NEUBERGER BERMAN GROUP LLC 62,031 $6,430,133
Filter: New 48 Increased 100 Reduced 77 Sold out 66 Unchanged 24
Showing 100 of 257
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $100,884,945 11.58% 1,317,724
Mega VANGUARD CAPITAL MANAGEMENT LLC $46,956,315 5.39% 613,327
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $37,145,457 4.26% 485,181
Mega TWO SIGMA INVESTMENTS, LP $35,831,764 4.11% 468,022
Large WASATCH ADVISORS LP $29,213,841 3.35% 381,581
Mega GEODE CAPITAL MANAGEMENT, LLC $27,124,595 3.11% 354,292
Mega STATE STREET CORP $24,093,432 2.76% 314,700
Mega DIMENSIONAL FUND ADVISORS LP $23,652,979 2.71% 308,947
Mega FIRST TRUST ADVISORS LP $21,961,848 2.52% 286,858
Mega AMERIPRISE FINANCIAL INC $20,851,421 2.39% 272,354
Mega Nuveen, LLC $18,565,110 2.13% 242,491
Large Swedbank AB Bank $18,121,752 2.08% 236,700
Large Driehaus Capital Management LLC $16,835,850 1.93% 219,904
Large Allspring Global Investments Holdings, LLC $16,569,803 1.90% 216,429
Mid NEUMEIER POMA INVESTMENT COUNSEL LLC $16,510,929 1.89% 215,660
Mid RBF Capital, LLC $14,132,976 1.62% 184,600
Mid Divisadero Street Capital Management, LP $12,631,404 1.45% 164,987
Mega NORTHERN TRUST CORP Bank $11,415,783 1.31% 149,109
Mega WELLS FARGO & COMPANY/MN $11,329,730 1.30% 147,985
Mid ALGERT GLOBAL LLC $11,299,260 1.30% 147,587
Mid Valiant Capital Management, L.P. $10,973,421 1.26% 143,331
Large Handelsbanken Fonder AB $10,921,743 1.25% 142,656
Mega JANE STREET GROUP, LLC $10,915,311 1.25% 142,572
Large Qube Research & Technologies Ltd $10,293,185 1.18% 134,446
Mega GOLDMAN SACHS GROUP INC $9,941,545 1.14% 129,853
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $9,398,964 1.08% 122,766
Mega MORGAN STANLEY $9,324,775 1.07% 121,797
Large ACADIAN ASSET MANAGEMENT LLC $8,492,111 0.97% 110,921
Large TUDOR INVESTMENT CORP ET AL $8,489,891 0.97% 110,892
Mega VANGUARD FIDUCIARY TRUST CO Bank $7,330,926 0.84% 95,754
Large Russell Investments Group, Ltd. $7,227,107 0.83% 94,398
Mid Portolan Capital Management, LLC $7,193,883 0.83% 93,964
Mid KENNEDY CAPITAL MANAGEMENT LLC $6,396,664 0.73% 83,551
Large Point72 Asset Management, L.P. $6,003,911 0.69% 78,421
Small ESSEX INVESTMENT MANAGEMENT CO LLC $5,994,035 0.69% 78,292
Large HRT FINANCIAL LP $5,976,579 0.69% 78,064
Large LORD, ABBETT & CO. LLC $5,854,160 0.67% 76,465
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $5,457,273 0.63% 71,281
Large Trexquant Investment LP $5,372,368 0.62% 70,172
Mid KORNITZER CAPITAL MANAGEMENT INC /KS $5,287,846 0.61% 69,068
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,114,208 0.59% 66,800
Large PANAGORA ASSET MANAGEMENT INC $4,687,845 0.54% 61,231
Large Thrivent Financial for Lutherans $4,629,199 0.53% 60,465
Mega Bank of New York Mellon Corp Bank $4,611,971 0.53% 60,240
Large Asset Management One Co., Ltd. $4,603,552 0.53% 60,130
Large ExodusPoint Capital Management, LP $4,185,535 0.48% 54,670
Large Janney Montgomery Scott LLC $4,135,082 0.47% 54,011
Large Man Group plc $4,121,454 0.47% 53,833
Mega AQR CAPITAL MANAGEMENT LLC $4,035,475 0.46% 52,710
Mega DEUTSCHE BANK AG\ Bank $4,032,720 0.46% 52,674
Mid Ranger Investment Management, L.P. $3,555,063 0.41% 46,435
Mid EFG International AG $3,522,677 0.40% 46,012
Mega ALLIANCEBERNSTEIN L.P. $3,420,853 0.39% 44,682
Small CVFG LLC $3,410,748 0.39% 44,550
Large Jefferies Financial Group Inc. $3,393,522 0.39% 44,325
Mega UBS Group AG $3,269,187 0.38% 42,701
Mid BOOTHBAY FUND MANAGEMENT, LLC $3,022,588 0.35% 39,480
Mega VICTORY CAPITAL MANAGEMENT INC $3,011,104 0.35% 39,330
Mega BARCLAYS PLC $3,007,658 0.35% 39,285
Mega AMERICAN CENTURY COMPANIES INC $2,810,823 0.32% 36,714
Mega BANK OF AMERICA CORP /DE/ Bank $2,773,767 0.32% 36,230
Mega PRINCIPAL FINANCIAL GROUP INC $2,749,575 0.32% 35,914
Mega CITADEL ADVISORS LLC $2,694,912 0.31% 35,200
Mega JPMORGAN CHASE & CO $2,495,088 0.29% 32,590
Mega CITADEL ADVISORS LLC $2,417,687 0.28% 31,579
Small G2 Investment Partners Management LLC $2,373,360 0.27% 31,000
Mega RAYMOND JAMES FINANCIAL INC $2,317,011 0.27% 30,264
Mega ENVESTNET ASSET MANAGEMENT INC $2,276,435 0.26% 29,734
Large SEI INVESTMENTS CO $2,242,901 0.26% 29,296
Mid RICE HALL JAMES & ASSOCIATES, LLC $2,236,470 0.26% 29,212
Large Connor, Clark & Lunn Investment Management Ltd. $2,235,934 0.26% 29,205
Mega Swiss National Bank Bank $2,235,552 0.26% 29,200
Large ALPS ADVISORS INC $2,159,834 0.25% 28,211
Mega BNP PARIBAS ARBITRAGE, SA $2,108,921 0.24% 27,546
Large MARSHALL WACE, LLP $2,063,214 0.24% 26,949
Large Squarepoint Ops LLC $1,909,253 0.22% 24,938
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,891,032 0.22% 24,700
Mega LPL Financial LLC $1,819,371 0.21% 23,764
Mid Conestoga Capital Advisors, LLC $1,811,945 0.21% 23,667
Mid WHITTIER TRUST CO Bank $1,811,179 0.21% 23,657
Large OSAIC HOLDINGS, INC. $1,783,311 0.20% 23,293
Large Gotham Asset Management, LLC $1,736,687 0.20% 22,684
Small LMG Wealth Partners, LLC $1,713,106 0.20% 22,376
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $1,649,331 0.19% 21,543
Large STOREBRAND ASSET MANAGEMENT AS $1,612,200 0.18% 21,058
Small De Lisle Partners LLP $1,607,760 0.18% 21,000
Mega CITIGROUP INC $1,587,853 0.18% 20,740
Mega Invesco Ltd. $1,582,724 0.18% 20,673
Large Cetera Investment Advisers $1,459,003 0.17% 19,057
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $1,378,692 0.16% 18,008
Mid Stratos Wealth Partners, LTD. $1,375,706 0.16% 17,969
Mega RHUMBLINE ADVISERS $1,340,718 0.15% 17,512
Mid Y-Intercept (Hong Kong) Ltd $1,316,066 0.15% 17,190
Mega MILLENNIUM MANAGEMENT LLC $1,284,906 0.15% 16,783
Mid OP Asset Management Ltd $1,276,791 0.15% 16,677
Large MML INVESTORS SERVICES, LLC $1,244,865 0.14% 16,260
Mid DARK FOREST CAPITAL MANAGEMENT LP $1,221,974 0.14% 15,961
Mega CITADEL ADVISORS LLC $1,209,648 0.14% 15,800
Mega JANE STREET GROUP, LLC $1,186,680 0.14% 15,500
Micro WULFF, HANSEN & CO. $1,178,181 0.14% 15,389
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