As of September 12, 2026, Orion Group Holdings's top three insider holders are Mark R. Stauffer (Chief Executive Officer, 1.02Mn shares), Mark R. Stauffer (Chief Executive Officer, 1.02Mn shares), Travis J Boone (President Ceo, 708.49K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Mark R. Stauffer | Chief Executive Officer | 1,021,680 | 0 | 1,021,680 | 23.1% | 04 Mar, 2022 |
| 2 | Travis J Boone | President Ceo | 708,485 | 0 | 708,485 | 16.0% | 02 Apr, 2026 |
| 3 | Peter R. Buchler | Evp, General Counsel | 375,670 | 0 | 375,670 | 8.5% | 21 Aug, 2023 |
| 4 | Austin J Shanfelter | Executive Chairman | 336,451 | 0 | 336,451 | 7.6% | 20 May, 2026 |
| 5 | Thomas N Amonett | Director | 287,945 | 0 | 287,945 | 6.5% | 19 May, 2025 |
| 6 | Mary E Sullivan | Director | 277,904 | 0 | 277,904 | 6.3% | 04 Aug, 2026 |
| 7 | Richard L. Daerr | Director | 274,629 | 0 | 274,629 | 6.2% | 22 May, 2023 |
| 8 | Robert L Tabb | Evp And Cfo | 242,106 | 0 | 242,106 | 5.5% | 20 Aug, 2021 |
| 9 | Michael J Caliel | Director | 214,412 | 0 | 214,412 | 4.9% | 20 May, 2026 |
| 10 | Gordon Scott Thanisch | Evp And Cfo | 212,440 | 0 | 212,440 | 4.8% | 24 Mar, 2025 |
| 11 | Edward Chipman Earle | Evp General Counsel | 150,042 | 0 | 150,042 | 3.4% | 04 Aug, 2026 |
| 12 | Margaret M Foran | Director | 116,846 | 0 | 116,846 | 2.6% | 06 May, 2026 |
| 13 | Quentin P. Jr. Smith | Director | 97,895 | 0 | 97,895 | 2.2% | 20 May, 2026 |
| 14 | Alison Gaut Vasquez | Evp And Cfo | 60,307 | 0 | 60,307 | 1.4% | 04 Aug, 2026 |
| 15 | Robert Ledford | Director | 43,112 | 0 | 43,112 | 1.0% | 04 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 31 Jul, 2026 | Mary E Sullivan | Director | Acquired P | 3,000 | $9.79 | $29.36K | 277,904 | Direct |
| 31 Jul, 2026 | Robert Ledford | Director | Acquired P | 20,000 | $9.62 | $192.43K | 43,112 | Direct |
| 31 Jul, 2026 | Alison Gaut Vasquez | Evp And Cfo | Acquired P | 5,025 | $9.95 | $50.00K | 60,307 | Direct |
| 31 Jul, 2026 | Edward Chipman Earle | Evp General Counsel | Acquired P | 5,000 | $9.81 | $49.05K | 150,042 | Direct |
| 23 Jun, 2026 | Alison Gaut Vasquez | Evp And Cfo | Disposed F | 2,325 | $15.56 | $36.18K | 55,282 | Direct |
| 19 May, 2026 | Mary E Sullivan | Director | Acquired A | 7,236 | — | — | 274,904 | Direct |
| 19 May, 2026 | Austin J Shanfelter | Director | Acquired A | 7,236 | — | — | 336,451 | Direct |
| 19 May, 2026 | Robert Ledford | Director | Acquired A | 7,236 | — | — | 23,112 | Direct |
| 19 May, 2026 | Quentin P. Jr. Smith | Director | Acquired A | 7,236 | — | — | 97,895 | Direct |
| 19 May, 2026 | Michael J Caliel | Director | Acquired A | 7,236 | — | — | 214,412 | Direct |
| 05 May, 2026 | Margaret M Foran | Director | Disposed S | 10,695 | $15.70 | $167.91K | 116,846 | Direct |
| 01 May, 2026 | Margaret M Foran | Director | Disposed S | 20,000 | $14.62 | $292.40K | 137,541 | Direct |
| 04 May, 2026 | Margaret M Foran | Director | Disposed S | 10,000 | $14.62 | $146.20K | 127,541 | Direct |
| 01 Apr, 2026 | Edward Chipman Earle | Evp General Counsel | Disposed F | 2,884 | $11.24 | $32.42K | 145,042 | Direct |
| 01 Apr, 2026 | Travis J Boone | President Ceo | Disposed F | 15,377 | $11.24 | $172.84K | 708,485 | Direct |
| 20 Mar, 2026 | Travis J Boone | President Ceo | Disposed F | 10,534 | $10.39 | $109.45K | 723,862 | Direct |
| 16 Mar, 2026 | Travis J Boone | President Ceo | Acquired A | 2,000 | $6.81 | $13.62K | 734,396 | Direct |
| 16 Mar, 2026 | Edward Chipman Earle | Evp General Counsel | Acquired A | 2,000 | $6.81 | $13.62K | 147,926 | Direct |
| 10 Mar, 2026 | Quentin P. Jr. Smith | Director | Disposed S | 10,695 | $12.25 | $131.01K | 90,659 | Direct |
| 10 Mar, 2026 | Quentin P. Jr. Smith | Director | Disposed S | 10,695 | $12.25 | $131.01K | 90,659 | Direct |