Mary E. Sullivan - 19 May 2026 Form 4 Insider Report for Orion Group Holdings Inc (ORN)

Reporting relationship: Director
Issuer ticker: ORN
Reported as of: 19 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 May 2026, 17:55:07 UTC
Prior SEC filing: 20 May 2025
Source filing: View source filing
Reporting owner signature: /s/ E. Chipman Earle, Attorney-in-Fact

Key filing fact

Mary E. Sullivan filed Form 4 for Orion Group Holdings Inc (ORN) on 20 May 2026.

Key facts

This page summarizes Mary E. Sullivan's Form 4 filing for Orion Group Holdings Inc (ORN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 20 May 2026, 17:55.

Change

Previous filing in this sequence was filed on 20 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001370423 Primary reporting owner

Sullivan Mary E

Relationship: Director
Address: 2940 RIVERBY ROAD, SUITE 400, HOUSTON
Signature: /s/ E. Chipman Earle, Attorney-in-Fact
Signature date: 20 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ORN transaction

Common Stock

Award

Transaction value
Shares: +7,236
Change %: +2.7%
Price
Shares after: 274,904
Date: 19 May 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The restricted shares are subject to cliff vesting on the date of the Company's 2027 annual general meeting, expected to occur in May 2027, contingent upon the reporting person's continued service through the vesting date.