As of September 09, 2026, the three largest insider holders of KOS are Adebayo O. Ogunlesi (Director, 5.04Mn shares), Andrew G Inglis (Chairman And Ceo, 4.68Mn shares), Nealesh D. Shah (Svp And Cfo, 1.94Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Adebayo O. Ogunlesi | Director | 5,036,228 | 0 | 5,036,228 | 29.5% | 29 May, 2026 |
| 2 | Andrew G Inglis | Chairman And Ceo | 4,678,043 | 0 | 4,678,043 | 27.4% | 06 Jul, 2026 |
| 3 | Nealesh D. Shah | Svp And Cfo | 1,935,410 | 0 | 1,935,410 | 11.4% | 06 Jul, 2026 |
| 4 | Christopher James Ball | Svp, Chief Commercial Officer | 1,639,925 | 0 | 1,639,925 | 9.6% | 06 Feb, 2025 |
| 5 | Jason Doughty | Svp And General Counsel | 1,244,324 | 0 | 1,244,324 | 7.3% | 07 Feb, 2024 |
| 6 | Richard Ryan Clark | Svp,Pres.Gulf Of Mexico Unit | 875,694 | 0 | 875,694 | 5.1% | 02 Feb, 2023 |
| 7 | Ronald W. Glass | Vp Chief Accounting Officer | 358,700 | 0 | 358,700 | 2.1% | 06 Jul, 2026 |
| 8 | Deanna L Goodwin | Director | 288,363 | 0 | 288,363 | 1.7% | 29 May, 2026 |
| 9 | J Michael Stice | Director | 269,664 | 0 | 269,664 | 1.6% | 29 May, 2026 |
| 10 | Josh R. Marion | Svp And General Counsel | 233,404 | 0 | 233,404 | 1.4% | 06 Jul, 2026 |
| 11 | Roy A. Franklin | Director | 212,766 | 0 | 212,766 | 1.2% | 29 May, 2026 |
| 12 | John Douglas Kelso Grant | Director | 144,355 | 0 | 144,355 | 0.8% | 29 May, 2026 |
| 13 | Sir Richard Billing Dearlove | Director | 133,476 | 0 | 133,476 | 0.8% | 09 Jun, 2023 |
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 |
|---|---|---|---|---|---|---|---|---|
| 01 Jul, 2026 | Ronald W. Glass | Vp Chief Accounting Officer | Acquired A | 31,196 | $0.00 | $0 | 370,828 | Direct |
| 01 Jul, 2026 | Nealesh D. Shah | Svp And Cfo | Acquired A | 118,329 | $0.00 | $0 | 1,981,390 | Direct |
| 01 Jul, 2026 | Josh R. Marion | Svp And General Counsel | Acquired A | 64,248 | $0.00 | $0 | 258,373 | Direct |
| 01 Jul, 2026 | Andrew G Inglis | Chairman And Ceo | Acquired A | 221,171 | $0.00 | $0 | 4,763,978 | Direct |
| 02 Jul, 2026 | Nealesh D. Shah | Svp And Cfo | Disposed S | 45,980 | $2.05 | $94.26K | 1,935,410 | Direct |
| 02 Jul, 2026 | Ronald W. Glass | Vp Chief Accounting Officer | Disposed S | 12,128 | $2.05 | $24.86K | 358,700 | Direct |
| 02 Jul, 2026 | Josh R. Marion | Svp And General Counsel | Disposed S | 24,969 | $2.05 | $51.19K | 233,404 | Direct |
| 02 Jul, 2026 | Andrew G Inglis | Chairman And Ceo | Disposed S | 85,935 | $2.05 | $176.17K | 4,678,043 | Direct |
| 27 May, 2026 | Steven Sterin | Director | Disposed S | 38,636 | $2.73 | $105.48K | 331,295 | Direct |
| 28 May, 2026 | J Michael Stice | Director | Acquired A | 62,044 | $2.74 | $170.00K | 269,664 | Direct |
| 27 May, 2026 | Roy A. Franklin | Director | Disposed F | 976 | $2.85 | $2.78K | 194,188 | Direct |
| 27 May, 2026 | John Douglas Kelso Grant | Director | Disposed F | 735 | $2.85 | $2.09K | 125,777 | Direct |
| 28 May, 2026 | Adebayo O. Ogunlesi | Director | Acquired A | 62,044 | $2.74 | $170.00K | 5,036,228 | Direct |
| 28 May, 2026 | Deanna L Goodwin | Director | Acquired A | 62,044 | $2.74 | $170.00K | 288,363 | Direct |
| 28 May, 2026 | Roy A. Franklin | Director | Disposed S | 43,466 | $2.73 | $118.66K | 150,722 | Direct |
| 27 May, 2026 | John Douglas Kelso Grant | Director | Disposed S | 43,466 | $2.73 | $118.66K | 82,311 | Direct |
| 28 May, 2026 | Steven Sterin | Director | Acquired A | 62,044 | $2.74 | $170.00K | 393,339 | Direct |
| 28 May, 2026 | John Douglas Kelso Grant | Director | Acquired A | 62,044 | $2.74 | $170.00K | 144,355 | Direct |
| 28 May, 2026 | Roy A. Franklin | Director | Acquired A | 62,044 | $2.74 | $170.00K | 212,766 | Direct |
| 10 Mar, 2026 | J Michael Stice | Director | Acquired P | 52,631 | $1.90 | $100.00K | 207,620 | Direct |