Orion Group Holdings Inc (ORN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

41,262,500Shares Outstanding

1,004,586Shares held by institutions

$13,511,682Value of institutional holdings

77.95%Institutional ownership %

5.24%Shares Changed QoQ

155No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 155 institutional investors hold a position in Orion Group Holdings Inc (NYSE:ORN).

The collective stake of institutional investors in Orion Group Holdings moved to 77.9% in December 2025, a shift down from the 78.9% reported for September 2025.
The company experienced a 5.24% quarterly change in institutional shares held, alongside an increase of 1.97% in total owners annually.
A review of institutional activity for Orion Group Holdings shows 71 of 155 filers increasing their positions, while 55 reduced their stake, and 29 remained unchanged.
The aggregate institutional position in Orion Group Holdings now stands at 32.16Mn shares as of December 2025, after investors increased their holdings (up by 1.60Mn shares quarter on quarter which is up 3.73Mn shares year over year).
With 5.01Mn shares, BRANDES INVESTMENT PARTNERS, LP commands the largest institutional position in Orion Group Holdings as of December 31, 2025, equating to 12.14% of the company.
Among the most significant buyers of Orion Group Holdings during December 2025 were Simcoe Capital LLC (453.65K), Allspring Global Investments Holdings, LLC (298.00K), ALGERT GLOBAL LLC (197.28K), SEI INVESTMENTS CO (190.62K), CenterBook Partners LP (179.05K).
Leading sellers of Orion Group Holdings stock in December 2025 included RENAISSANCE TECHNOLOGIES LLC (154.00K), AMERICAN CENTURY COMPANIES INC (111.56K), Archon Capital Management LLC (110.49K), Russell Investments Group, Ltd. (102.23K), LAZARD ASSET MANAGEMENT LLC (95.05K).
The top 10 institutional holders of Orion Group Holdings for the quarter ending December 2025 included BRANDES INVESTMENT PARTNERS, LP (5.01Mn), BlackRock, Inc. (2.76Mn), WASATCH ADVISORS LP (2.27Mn), VANGUARD GROUP INC (2.11Mn), ROYCE & ASSOCIATES LP (1.66Mn), DIMENSIONAL FUND ADVISORS LP (1.61Mn), GENDELL JEFFREY L (1.10Mn), GRACE & WHITE INC /NY (936.15K), GEODE CAPITAL MANAGEMENT, LLC (892.63K), STATE STREET CORP (748.66K).

155 Institutional Holders

1,004,586 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BRANDES INVESTMENT PARTNERS, LP	31 Dec, 2025	5,010,193	56,663	1.14%	$49,801,318.00
BlackRock, Inc.	31 Dec, 2025	2,761,471	43,738	1.61%	$27,449,023.00
WASATCH ADVISORS LP	31 Dec, 2025	2,267,707	41,188	1.85%	$22,541,008.00
VANGUARD GROUP INC	31 Dec, 2025	2,109,101	84,216	4.16%	$20,964,465.00
ROYCE & ASSOCIATES LP	31 Dec, 2025	1,658,514	-45,660	-2.68%	$16,485,629.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,614,061	-70,916	-4.21%	$16,044,283.00
GENDELL JEFFREY L	31 Dec, 2025	1,104,300	67,123	6.47%	$10,976,742.00
GRACE & WHITE INC /NY	31 Dec, 2025	936,152	-62,190	-6.23%	$9,305,351.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	892,627	11,992	1.36%	$8,874,985.00
STATE STREET CORP	31 Dec, 2025	748,663	5,290	0.71%	$7,441,710.00
SILVERCREST ASSET MANAGEMENT GROUP LLC	31 Dec, 2025	728,216	160,206	28.20%	$7,238,467.00
CenterBook Partners LP	31 Dec, 2025	720,561	179,050	33.06%	$7,162,376.00
KENNEDY CAPITAL MANAGEMENT LLC	31 Dec, 2025	674,353	-606	-0.09%	$6,703,069.00
NEXT CENTURY GROWTH INVESTORS LLC	31 Dec, 2025	667,654	-2,762	-0.41%	$6,636,480.00
FIRST WILSHIRE SECURITIES MANAGEMENT INC	31 Dec, 2025	530,567	-172	-0.03%	$5,273,836.00
Simcoe Capital LLC	31 Dec, 2025	453,654	453,654	0.00%	$4,509,321.00
ESSEX INVESTMENT MANAGEMENT CO LLC	31 Dec, 2025	449,761	139,109	44.78%	$4,470,624.00
Russell Investments Group, Ltd.	31 Dec, 2025	436,886	-102,226	-18.96%	$4,342,657.00
ARDSLEY ADVISORY PARTNERS LP	31 Dec, 2025	400,000	25,000	6.67%	$3,976,000.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	399,461	-111,560	-21.83%	$3,970,642.00

1 - 20 of 155

Research Tools