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 256 rows by value; the complete set is available through the API.

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	$100.88M 1,317,724 shares	0.00%	+2.82K(+0.20%)Added	SEC filing ↗ May 13, 2026	▾
02	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$46.96M 613,327 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
03	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$37.15M 485,181 shares	0.00%	—	SEC filing ↗ May 8, 2026	▾
04	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$35.83M 468,022 shares	0.03%	+172.28K(+58.30%)Added	SEC filing ↗ May 15, 2026	▾
05	WASATCH ADVISORS LP CIK 814133 · View history	$29.21M 381,581 shares	0.19%	+120.11K(+45.90%)Added	SEC filing ↗ Apr 21, 2026	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$27.13M 354,292 shares	0.00%	+11.29K(+3.30%)Added	SEC filing ↗ May 15, 2026	▾
07	STATE STREET CORP CIK 93751 · View history	$24.09M 314,700 shares	0.00%	+8.86K(+2.90%)Added	SEC filing ↗ May 15, 2026	▾
08	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$23.65M 308,947 shares	0.00%	+21.67K(+7.50%)Added	SEC filing ↗ May 7, 2026	▾
09	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$21.96M 286,858 shares	0.02%	+49.16K(+20.70%)Added	SEC filing ↗ May 13, 2026	▾
10	AMERIPRISE FINANCIAL INC CIK 820027 · Amended · View history	$20.85M 272,354 shares	0.00%	+92.46K(+51.40%)Added	SEC filing ↗ Jul 17, 2026	▾
11	Nuveen, LLC CIK 1871926 · View history	$18.57M 242,491 shares	0.01%	+57.41K(+31.00%)Added	SEC filing ↗ Apr 30, 2026	▾
12	Swedbank AB CIK 946431 · View history	$18.12M 236,700 shares	0.02%	+61.90K(+35.40%)Added	SEC filing ↗ Apr 29, 2026	▾
13	Allspring Global Investments Holdings, LLC CIK 1890906 · View history	$17.10M 216,429 shares	0.03%	+37.62K(+21.00%)Added	SEC filing ↗ May 5, 2026	▾
14	Driehaus Capital Management LLC CIK 938206 · View history	$16.84M 219,904 shares	0.12%	+9.32K(+4.40%)Added	SEC filing ↗ May 15, 2026	▾
15	NEUMEIER POMA INVESTMENT COUNSEL LLC CIK 1044936 · View history	$16.51M 215,660 shares	1.36%	+215.66KNew	SEC filing ↗ May 13, 2026	▾
16	RBF Capital, LLC CIK 1134621 · Amended · View history	$14.13M 184,600 shares	0.69%	0(0.00%)Unchanged	SEC filing ↗ May 18, 2026	▾
17	Divisadero Street Capital Management, LP CIK 1901865 · View history	$12.63M 164,987 shares	0.59%	-133.94K(-44.80%)Reduced	SEC filing ↗ May 15, 2026	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$11.42M 149,109 shares	0.00%	+2.89K(+2.00%)Added	SEC filing ↗ May 14, 2026	▾
19	WELLS FARGO & COMPANY/MN CIK 72971 · Amended · View history	$11.33M 147,985 shares	0.00%	-59.60K(-28.70%)Reduced	SEC filing ↗ May 11, 2026	▾
20	ALGERT GLOBAL LLC CIK 1275218 · Amended · View history	$11.30M 147,587 shares	0.17%	+38.50K(+35.30%)Added	SEC filing ↗ Aug 11, 2026	▾

Showing 20 / 256 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

256

Cancelled or null records excluded

Disclosed shares

11,394,373

Not deduplicated across managers

Disclosed value

$874.41M

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. · Q1 2026

Explore all 256 reporting institutions.

This page includes 20 of 256 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.