As of September 29, 2026, the three largest insider holders of OGS are John William Gibson (Director, 292.67K shares), Pierce Norton (President And Ceo, 264.44K shares), Curtis Dinan (Officer, 142.26K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | John William Gibson | Director | 292,670 | 0 | 292,670 | 26.0% | 04 Jun, 2026 |
| 2 | Pierce Norton | President And Ceo | 264,445 | 0 | 264,445 | 23.5% | 29 Dec, 2021 |
| 3 | Curtis Dinan | Officer | 142,259 | 0 | 142,259 | 12.6% | 19 Feb, 2026 |
| 4 | Caron A Lawhorn | Svp, Commercial | 141,230 | 0 | 141,230 | 12.5% | 02 Jul, 2024 |
| 5 | Joseph L Mccormick | Other | 76,775 | 0 | 76,775 | 6.8% | 10 Jun, 2026 |
| 6 | Robert S. Mcannally | Director, Officer | 59,530 | 0 | 59,530 | 5.3% | 19 Feb, 2026 |
| 7 | Mark A. Bender | Officer | 29,081 | 0 | 29,081 | 2.6% | 19 Feb, 2026 |
| 8 | Douglas H Yaeger | Director | 0 | 26,921 | 26,921 | 2.4% | 30 May, 2023 |
| 9 | Robert B Evans | Director | 16,921 | 0 | 16,921 | 1.5% | 30 May, 2023 |
| 10 | Michael G Hutchinson | Director | 16,331 | 0 | 16,331 | 1.4% | 26 May, 2026 |
| 11 | Eduardo A Rodriguez | Director | 14,637 | 0 | 14,637 | 1.3% | 26 May, 2026 |
| 12 | William Kent Shortridge | Officer | 11,607 | 0 | 11,607 | 1.0% | 19 Feb, 2026 |
| 13 | Tracy E Hart | Director | 11,302 | 0 | 11,302 | 1.0% | 26 May, 2026 |
| 14 | Pattye L Moore | Director | 6,088 | 0 | 6,088 | 0.5% | 04 Jun, 2026 |
| 15 | Sanjay D. Meshri | Director | 5,293 | 0 | 5,293 | 0.5% | 26 May, 2026 |
| 16 | Christopher P. Sighinolfi | Officer | 4,518 | 0 | 4,518 | 0.4% | 19 Feb, 2026 |
| 17 | Jeffrey J Husen | Officer | 3,294 | 0 | 3,294 | 0.3% | 23 Feb, 2022 |
| 18 | Brian F. Brumfield | Officer | 2,246 | 0 | 2,246 | 0.2% | 25 Feb, 2026 |
| 19 | Angela Kouplen | Officer | 1,857 | 0 | 1,857 | 0.2% | 19 Feb, 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 |
|---|---|---|---|---|---|---|---|---|
| 11 Aug, 2026 | Nickolas Stavropoulos | Director | Acquired A | 1,503 | $79.60 | $119.62K | 1,503 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Acquired M | 1,273 | $76.00 | $96.74K | 76,180 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Disposed F | 558 | $76.00 | $42.42K | 75,622 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Acquired M | 1,230 | $76.00 | $93.49K | 76,852 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Disposed F | 539 | $76.00 | $41.00K | 76,312 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Acquired M | 825 | $76.00 | $62.66K | 77,137 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Disposed F | 362 | $76.00 | $27.48K | 76,775 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Disposed M | 1,223 | $76.00 | $92.95K | 0 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Disposed M | 1,926 | $76.00 | $146.38K | 0 | Direct |
| 09 Jun, 2026 | Joseph L Mccormick | Other | Disposed M | 3,132 | $76.00 | $238.03K | 0 | Direct |
| 03 Jun, 2026 | John William Gibson | Director | Acquired M | 19,976 | $77.47 | $1.55Mn | 292,670 | Direct |
| 03 Jun, 2026 | Pattye L Moore | Director | Acquired M | 5,638 | $77.47 | $436.78K | 6,088 | Direct |
| 03 Jun, 2026 | John William Gibson | Director | Disposed M | 19,976 | $77.74 | $1.55Mn | 6,010 | Direct |
| 03 Jun, 2026 | Pattye L Moore | Director | Disposed M | 5,638 | $77.74 | $438.30K | 50,714 | Direct |
| 21 May, 2026 | Yves C Siegel | Director | Acquired A | 1,700 | $82.35 | $140.00K | 5,447 | Direct |
| 21 May, 2026 | Tracy E Hart | Director | Acquired A | 1,700 | $82.35 | $140.00K | 11,302 | Direct |
| 21 May, 2026 | Michael G Hutchinson | Director | Acquired A | 1,700 | $82.35 | $140.00K | 16,331 | Direct |
| 21 May, 2026 | Eduardo A Rodriguez | Director | Acquired A | 1,275 | $82.35 | $105.00K | 14,637 | Direct |
| 21 May, 2026 | Pattye L Moore | Director | Acquired A | 1,700 | $82.35 | $140.00K | 55,877 | Direct |
| 21 May, 2026 | Deborah Hersman | Director | Acquired A | 1,700 | $82.35 | $140.00K | 7,533 | Direct |