ACADIAN ASSET MANAGEMENT LLC

Position in ORN — Orion Group Holdings Inc

CIK 916542 Boston, MA

Position in ORN

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$2,556,998

+$2,301,789 QoQ

Shares Held

234,587

+813.7% QoQ

Ownership

0.580%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

22 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

ACADIAN ASSET MANAGEMENT LLC holds $227,457,584 across 25 Engineering & Construction names. ORN ranks #12 (1.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EME	EMCOR Group, Inc.	70,965	$52,394,169
2	FIX	Comfort Systems USA Inc	34,958	$48,206,732
3	FER	Ferrovial N.V.	559,591	$36,401,394
4	STN	Stantec Inc	364,700	$31,510,080
5	ACM	Aecom	128,031	$10,859,589
6	WLDN	Willdan Group, Inc.	110,921	$8,492,111
7	MYRG	Myr Group Inc.	22,950	$6,479,244
8	KBR	Kbr, Inc.	169,827	$6,259,823

22 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,556,998	234,587	+813.7%	Shares	Defined	2026-05-13
2025-12-31	$255,209	25,675	-76.2%	Shares	Defined	2026-02-10
2025-09-30	$896,887	107,799	+369.0%	Shares	Defined	2025-11-13
2025-06-30	$208,464	22,984	-96.1%	Shares	Defined	2025-08-07
2024-06-30	$5,655,463	594,686	-13.6%	Shares	Defined	2024-08-06
2024-03-31	$5,642,633	688,126	-9.6%	Shares	Defined	2024-05-10
2023-12-31	$3,760,061	761,146	-8.8%	Shares	Defined	2024-02-13
2023-09-30	$4,472,769	834,472	0.0%	Shares	Defined	2023-11-13
2023-06-30	$2,344,866	834,472	-4.0%	Shares	Defined	2023-08-07
2023-03-31	$2,251,367	869,254	0.0%	Shares	Defined	2023-05-11
2022-12-31	$2,068,824	869,254	0.0%	Shares	Defined	2023-02-14
2022-09-30	$2,294,830	869,254	-0.9%	Shares	Defined	2022-11-14
2022-06-30	$2,000,704	877,502	0.0%	Shares	Defined	2022-08-09
2022-03-31	$2,176,204	877,502	-1.4%	Shares	Defined	2022-05-12
2021-12-31	$3,354,606	889,816	-1.9%	Shares	Defined	2022-02-10
2021-09-30	$4,933,002	906,802	-5.8%	Shares	Defined	2021-11-12
2021-06-30	$5,537,819	963,099	+14.8%	Shares	Defined	2021-08-11
2021-03-31	$5,091,139	838,738	+38.9%	Shares	Defined	2021-05-11
2020-12-31	$2,995,358	603,903	+32.6%	Shares	Defined	2021-02-11
2020-09-30	$1,252,410	455,422	+67.7%	Shares	Defined	2020-11-09
2020-06-30	$852,943	271,638	+15.6%	Shares	Defined	2020-08-12
2020-03-31	$610,820	234,931	—	Shares	Defined	2020-05-11
No filing history on record for this holder in this stock.