ORION GROUP HOLDINGS INC

Ticker: ORN CUSIP: 68628V308 Class: Common Stock

Mariner, LLC's Holding History (CIK: 0001373442)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 14,910 Value ($000) $124 Avg Close $7.88 Range $6.44 - $9.95

Q2 2025

Shares 18,763 Value ($000) $170 Avg Close $7.49 Range $4.64 - $9.42

Q1 2025

Shares 19,275 Value ($000) $101 Avg Close $7.00 Range $4.85 - $9.64

Q4 2024

Shares 22,452 Value ($000) $165 Avg Close $7.23 Range $5.27 - $9.35

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	14,910	$124	$7.88	$6.44 - $9.95
Q2 2025	18,763	$170	$7.49	$4.64 - $9.42
Q1 2025	19,275	$101	$7.00	$4.85 - $9.64
Q4 2024	22,452	$165	$7.23	$5.27 - $9.35