Company · Ownership research

Willdan Group, Inc. WLDN

CIK 0001370450 · CUSIP 96924N100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 96924N100 (WLDN), not CUSIP 96924N900 (WLDN), CUSIP 96924N950 (WLDN), and does not merge CUSIPs.

This page lists the top 20 of 191 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$73.18M 1,170,723 shares	0.00%	+32.43K(+2.80%)Added	SEC filing ↗ Aug 12, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$52.88M 845,913 shares	0.00%	+71.70K(+9.30%)Added	SEC filing ↗ Aug 11, 2025	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$26.91M 430,445 shares	0.01%	-49.00K(-10.20%)Reduced	SEC filing ↗ Aug 12, 2025	▾
04	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$24.87M 398,038 shares	0.05%	-24.28K(-5.70%)Reduced	SEC filing ↗ Aug 7, 2025	▾
05	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$21.05M 336,752 shares	0.00%	+31.56K(+10.30%)Added	SEC filing ↗ Aug 8, 2025	▾
06	WASATCH ADVISORS LP CIK 814133 · View history	$20.19M 322,957 shares	0.11%	+322.96KNew	SEC filing ↗ Aug 14, 2025	▾
07	Summit Creek Advisors LLC CIK 1333709 · View history	$19.62M 313,892 shares	2.73%	-50.84K(-13.90%)Reduced	SEC filing ↗ Aug 6, 2025	▾
08	Nuveen, LLC CIK 1871926 · View history	$17.48M 279,644 shares	0.00%	+26.38K(+10.40%)Added	SEC filing ↗ Aug 12, 2025	▾
09	Divisadero Street Capital Management, LP CIK 1901865 · View history	$17.44M 278,955 shares	1.17%	+107.03K(+62.30%)Added	SEC filing ↗ Aug 14, 2025	▾
10	STATE STREET CORP CIK 93751 · View history	$17.31M 276,965 shares	0.00%	+27.19K(+10.90%)Added	SEC filing ↗ Aug 14, 2025	▾
11	LORD, ABBETT & CO. LLC CIK 728100 · View history	$15.08M 241,293 shares	0.05%	-4.42K(-1.80%)Reduced	SEC filing ↗ Aug 14, 2025	▾
12	Allspring Global Investments Holdings, LLC CIK 1890906 · View history	$14.06M 211,053 shares	0.02%	+52.65K(+33.20%)Added	SEC filing ↗ Jul 25, 2025	▾
13	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$13.52M 216,271 shares	0.01%	+190.45K(+737.50%)Added	SEC filing ↗ Aug 14, 2025	▾
14	Swedbank AB CIK 946431 · View history	$12.65M 202,300 shares	0.01%	-13.90K(-6.40%)Reduced	SEC filing ↗ Jul 10, 2025	▾
15	Valiant Capital Management, L.P. CIK 1452689 · View history	$12.40M 198,321 shares	0.96%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
16	MORGAN STANLEY CIK 895421 · View history	$12.10M 193,568 shares	0.00%	+106.07K(+121.20%)Added	SEC filing ↗ Aug 14, 2025	▾
17	RBF Capital, LLC CIK 1134621 · View history	$11.60M 185,543 shares	0.57%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
18	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$11.25M 180,015 shares	0.01%	+15.10K(+9.20%)Added	SEC filing ↗ Aug 13, 2025	▾
19	Portolan Capital Management, LLC CIK 1350290 · View history	$10.54M 168,546 shares	0.66%	+168.55KNew	SEC filing ↗ Aug 13, 2025	▾
20	Forager Capital Management, LLC CIK 1802986 · View history	$10.50M 167,957 shares	5.13%	-464.43K(-73.40%)Reduced	SEC filing ↗ Aug 13, 2025	▾

Showing 20 / 191 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

191

Cancelled or null records excluded

Disclosed shares

10,848,118

Not deduplicated across managers

Disclosed value

$678.97M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Willdan Group, Inc. · Q2 2025

Explore all 191 reporting institutions.

This page includes 20 of 191 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.