WELLINGTON MANAGEMENT GROUP LLP

Position in WLDN — Willdan Group, Inc.

CIK 902219 Boston, MA

Position in WLDN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$16,681,794

+$11,942,971 QoQ

Shares Held

210,895

+22.7% QoQ

Ownership

1.38%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#18

of 243 holders

Holding Since

Mar 2020

11 quarters on record

Voting authority Sole 0% Shared 74% None 26%

Industrials · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $1,263,892,914 across 19 Engineering & Construction names. WLDN ranks #9 (1.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PRIM	Primoris Services Corp	4,675,487	$463,434,268
2	FIX	Comfort Systems USA Inc	104,995	$208,094,837
3	MYRG	Myr Group Inc.	318,333	$159,293,830
4	TTEK	Tetra Tech Inc	4,674,089	$135,034,428
5	AMRC	Ameresco, Inc.	3,374,767	$93,143,566
6	EME	EMCOR Group, Inc.	106,189	$88,124,124
7	ROAD	Construction Partners, Inc.	144,026	$17,105,968
8	J	Jacobs Solutions Inc.	134,935	$17,001,810

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$16,681,794	210,895	+22.7%	Shares	Defined	2026-08-14
2022-06-30	$4,738,823	171,821	0.0%	Shares	Defined	2022-08-15
2022-03-31	$5,273,186	171,821	-24.0%	Shares	Defined	2022-05-16
2021-12-31	$7,962,979	226,221	0.0%	Shares	Defined	2022-02-11
2021-09-30	$8,051,205	226,221	0.0%	Shares	Defined	2021-11-15
2021-06-30	$8,514,958	226,221	+10.3%	Shares	Defined	2021-08-16
2021-03-31	$8,416,112	205,021	-35.7%	Shares	Defined	2021-05-17
2020-12-31	$13,290,665	318,721	-15.1%	Shares	Defined	2021-02-12
2020-09-30	$9,579,540	375,521	+0.3%	Shares	Defined	2020-11-16
2020-06-30	$9,359,267	374,221	+94.8%	Shares	Defined	2020-08-14
2020-03-31	$4,105,625	192,121	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.