What does CUSIP 68628V308 represent in this 13F holders report?

CUSIP 68628V308 is the security identifier for ORN - Orion Group Holdings Inc - COM used to aggregate holder disclosures.

How many institutions held ORN - Orion Group Holdings Inc - COM in Q1 2026?

172 institutional investors reported ORN - Orion Group Holdings Inc - COM for Q1 2026. Use the holders table for investor-level position and value details.

Orion Group Holdings Inc - COM (ORN)

CUSIP: 68628V308

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class: Equity / COM
Shares outstanding: 40,410,585
Total 13F shares: 33,653,890
Share change: -217,924
Total reported value: $366,962,181
Price per share: $10.90
Number of holders: 172
Value change: -$1,912,603
Number of buys: 82
Number of sells: 76

Security key

68628V308

Report period

Q1 2026

Institutions

172

Top holders

ORN full security history Ownership snapshot Full 13F holder table Previous quarter: Q4 2025 Orion Group Holdings Inc SEC filings Orion Group Holdings Inc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 68628V308

Previous quarter: Q4 2025

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top shareholders of ORN - Orion Group Holdings Inc - COM (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder

BRANDES INVESTMENT PARTNE...

13D/G signal

BRANDES INVESTMENT PARTNE...

Evidence rows

Latest as of

06 Mar 2026

13F 13D/G 3/4/5 Lead comparable stake: 12% 13D/G row: BRANDES INVESTMENT PARTNERS, LP Showing first 8 of 50 holder rows. Open remaining rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BRANDES INVESTMENT PARTNERS, LP	13F 13D/G Company 13F 13D/G	12% from 13D/G	$49,801,318 5,010,193 shares	—	31 Dec 2025
DIMENSIONAL FUND ADVISORS LP	13F 13D/G Company 13F 13D/G	4.6% from 13D/G	$16,044,283 1,614,061 shares	—	31 Dec 2025
ROYCE & ASSOCIATES LP	13F 13D/G Company 13F 13D/G	4.2% from 13D/G	$16,485,629 1,658,514 shares	—	31 Dec 2025
WASATCH ADVISORS LP	13F 13D/G Company 13F 13D/G	4.1% from 13D/G	$22,541,008 2,267,707 shares	—	31 Dec 2025
Portolan Capital Management, LLC	13D/G 13D/G	1.2%	$2,790,858 448,691 shares	$0	31 Dec 2024
Thomas N. Amonett	3/4/5 Director 3/4/5	0.71%	$2,508,000 287,945 shares	—	15 May 2025
Alison G. Vasquez	3/4/5 EVP AND CFO 3/4/5	0.14%	$682,642 57,607 shares	+$49,983	06 Mar 2026
BlackRock, Inc.	13F Company 13F	6.8%	$27,449,023 2,761,471 shares	—	31 Dec 2025

Show 42 additional holder rows in the full holder list

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VANGUARD GROUP INC	13F Company 13F	5.2%	$20,964,465 2,109,101 shares	—	31 Dec 2025
Invesco Ltd.	13F Company 13F	3.2%	$12,844,399 1,292,193 shares	—	31 Dec 2025
Jeffrey L. Gendell	13F Individual 13F	2.7%	$10,976,742 1,104,300 shares	—	31 Dec 2025
GRACE & WHITE INC /NY	13F Company 13F	2.3%	$9,305,351 936,152 shares	—	31 Dec 2025
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	2.2%	$8,874,985 892,627 shares	—	31 Dec 2025
STATE STREET CORP	13F Company 13F	1.9%	$7,441,710 748,663 shares	—	31 Dec 2025
SILVERCREST ASSET MANAGEMENT GROUP LLC	13F Company 13F	1.8%	$7,238,467 728,216 shares	—	31 Dec 2025
CenterBook Partners LP	13F Company 13F	1.8%	$7,162,376 720,561 shares	—	31 Dec 2025
KENNEDY CAPITAL MANAGEMENT LLC	13F Company 13F	1.7%	$6,703,069 674,353 shares	—	31 Dec 2025
NEXT CENTURY GROWTH INVESTORS LLC	13F Company 13F	1.7%	$6,636,480 667,654 shares	—	31 Dec 2025
FIRST WILSHIRE SECURITIES MANAGEMENT INC	13F Company 13F	1.3%	$5,273,836 530,567 shares	—	31 Dec 2025
Simcoe Capital LLC	13F Company 13F	1.1%	$4,509,321 453,654 shares	—	31 Dec 2025
ESSEX INVESTMENT MANAGEMENT CO LLC	13F Company 13F	1.1%	$4,470,624 449,761 shares	—	31 Dec 2025
Russell Investments Group, Ltd.	13F Company 13F	1.1%	$4,342,657 436,886 shares	—	31 Dec 2025
ARDSLEY ADVISORY PARTNERS LP	13F Company 13F	0.99%	$3,976,000 400,000 shares	—	31 Dec 2025
AMERICAN CENTURY COMPANIES INC	13F Company 13F	0.99%	$3,970,642 399,461 shares	—	31 Dec 2025
De Lisle Partners LLP	13F Company 13F	0.98%	$3,946,465 397,809 shares	—	31 Dec 2025
FORMULA GROWTH LTD	13F Company 13F	0.75%	$2,994,882 301,296 shares	—	31 Dec 2025
Allspring Global Investments Holdings, LLC	13F Company 13F	0.74%	$2,976,990 297,997 shares	—	31 Dec 2025
Archon Capital Management LLC	13F Company 13F	0.68%	$2,716,801 273,320 shares	—	31 Dec 2025
NORTHERN TRUST CORP	13F Company 13F	0.67%	$2,692,189 270,844 shares	—	31 Dec 2025
AQR CAPITAL MANAGEMENT LLC	13F Company 13F	0.64%	$2,555,743 257,117 shares	—	31 Dec 2025
Cruiser Capital Advisors, LLC	13F Company 13F	0.6%	$2,426,394 244,104 shares	—	31 Dec 2025
JACOBS LEVY EQUITY MANAGEMENT, INC	13F Company 13F	0.6%	$2,412,269 242,683 shares	—	31 Dec 2025
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	0.59%	$2,367,678 238,197 shares	—	31 Dec 2025
Connor, Clark & Lunn Investment Management Ltd.	13F Company 13F	0.53%	$2,122,448 213,526 shares	—	31 Dec 2025
ALGERT GLOBAL LLC	13F Company 13F	0.49%	$1,961,000 197,280 shares	—	31 Dec 2025
Ancora Advisors LLC	13F Company 13F	0.48%	$1,944,493 195,623 shares	—	31 Dec 2025
SEI INVESTMENTS CO	13F Company 13F	0.47%	$1,894,783 190,622 shares	—	31 Dec 2025
JPMORGAN CHASE & CO	13F Company 13F	0.47%	$1,885,012 189,639 shares	—	31 Dec 2025
CITADEL ADVISORS LLC	13F Company 13F	0.43%	$1,745,364 175,590 shares	—	31 Dec 2025
GOLDMAN SACHS GROUP INC	13F Company 13F	0.41%	$1,629,673 163,951 shares	—	31 Dec 2025
Seros Financial, LLC	13F Company 13F	0.4%	$1,611,612 162,134 shares	—	31 Dec 2025
Bank of New York Mellon Corp	13F Company 13F	0.39%	$1,549,298 155,865 shares	—	31 Dec 2025
US BANCORP \DE\	13F Company 13F	0.38%	$1,524,448 153,365 shares	—	31 Dec 2025
WESTERLY CAPITAL MANAGEMENT, LLC	13F Company 13F	0.37%	$1,491,000 150,000 shares	—	31 Dec 2025
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F Company 13F	0.36%	$1,457,174 146,597 shares	—	31 Dec 2025
Legato Capital Management LLC	13F Company 13F	0.36%	$1,441,797 145,050 shares	—	31 Dec 2025
MORGAN STANLEY	13F Company 13F	0.35%	$1,390,835 139,923 shares	—	31 Dec 2025
JB CAPITAL PARTNERS LP	13F Company 13F	0.32%	$1,292,200 130,000 shares	—	31 Dec 2025
FIRST TRUST ADVISORS LP	13F Company 13F	0.3%	$1,191,179 119,837 shares	—	31 Dec 2025
Informed Momentum Co LLC	13F Company 13F	0.29%	$1,176,588 118,369 shares	—	31 Dec 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

172

33,653,890

Rows loaded

172

Investor	Option	Weight %	Change %	Reported value	* Price	Shares	Share Change	Activity	Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

163

Q1 2026 holders

172

Holder diff

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend