Magnolia Oil & Gas's top three insider shareholders as of September 29, 2026 are John B Walker (Director, 16.28Mn shares), John B Walker (Director, 10.91Mn shares), John B Walker (Director, 8.30Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | John B Walker | Director | 0 | 2,099,403 | 2,099,403 | 30.9% | 25 Sep, 2024 |
| 2 | Ltd. Enervest, | Director | 2,099,403 | 0 | 2,099,403 | 30.9% | 25 Sep, 2024 |
| 3 | Christopher G Stavros | Ceo Chairman | 898,781 | 0 | 898,781 | 13.2% | 25 Sep, 2026 |
| 4 | Timothy D. Yang | Evp, Chief Legal Comm Sec | 534,783 | 0 | 534,783 | 7.9% | 25 Sep, 2026 |
| 5 | Steve Millican | Svp Operations | 328,820 | 0 | 328,820 | 4.8% | 05 Mar, 2024 |
| 6 | Brian Corales | Svp Chief Financial Officer | 191,573 | 0 | 191,573 | 2.8% | 25 Sep, 2026 |
| 7 | Arcilia Acosta | Director | 134,721 | 0 | 134,721 | 2.0% | 03 Sep, 2026 |
| 8 | Dan F Smith | Director | 127,232 | 0 | 127,232 | 1.9% | 12 May, 2026 |
| 9 | Edward P Djerejian | Director | 116,745 | 0 | 116,745 | 1.7% | 12 May, 2026 |
| 10 | James R Larson | Director | 97,295 | 0 | 97,295 | 1.4% | 12 May, 2026 |
| 11 | Angela M Busch | Director | 94,161 | 0 | 94,161 | 1.4% | 05 Mar, 2024 |
| 12 | David M. Khani | Director | 30,676 | 0 | 30,676 | 0.5% | 03 Sep, 2026 |
| 13 | Ralph Lewis Ropp | Director | 26,007 | 0 | 26,007 | 0.4% | 11 Aug, 2026 |
| 14 | Shandell Szabo | Director | 20,710 | 0 | 20,710 | 0.3% | 03 Jun, 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 |
|---|---|---|---|---|---|---|---|---|
| 24 Sep, 2026 | Brian Corales | Svp Chief Financial Officer | Acquired A | 12,193 | $0.00 | $0 | 196,371 | Direct |
| 24 Sep, 2026 | Timothy D. Yang | Evp, Chief Legal Comm Sec | Acquired A | 13,392 | $0.00 | $0 | 540,053 | Direct |
| 24 Sep, 2026 | Christopher G Stavros | Ceo Chairman | Acquired A | 25,044 | $0.00 | $0 | 908,636 | Direct |
| 24 Sep, 2026 | Brian Corales | Svp Chief Financial Officer | Disposed F | 4,798 | $24.74 | $118.70K | 191,573 | Direct |
| 24 Sep, 2026 | Christopher G Stavros | Ceo Chairman | Disposed F | 9,855 | $24.74 | $243.81K | 898,781 | Direct |
| 24 Sep, 2026 | Timothy D. Yang | Evp, Chief Legal Comm Sec | Disposed F | 5,270 | $24.74 | $130.38K | 534,783 | Direct |
| 01 Sep, 2026 | David M. Khani | Director | Acquired P | 54 | $26.78 | $1.45K | 30,676 | Direct |
| 01 Sep, 2026 | Arcilia Acosta | Director | Acquired A | 80 | $0.00 | $0 | 134,721 | Direct |
| 07 Aug, 2026 | Ralph Lewis Ropp | Director | Acquired P | 5,000 | $24.63 | $123.13K | 26,007 | Direct |
| 07 Aug, 2026 | David M. Khani | Director | Acquired P | 8,000 | $25.00 | $200.00K | 30,622 | Direct |
| 01 Jun, 2026 | Shandell Szabo | Director | Acquired P | 86 | $27.44 | $2.36K | 20,710 | Direct |
| 01 Jun, 2026 | Arcilia Acosta | Director | Acquired A | 72 | $0.00 | $0 | 134,641 | Direct |
| 08 May, 2026 | James R Larson | Director | Acquired A | 6,320 | $0.00 | $0 | 97,295 | Direct |
| 08 May, 2026 | Edward P Djerejian | Director | Acquired A | 6,320 | $0.00 | $0 | 116,745 | Direct |
| 08 May, 2026 | Shandell Szabo | Director | Acquired A | 6,320 | $0.00 | $0 | 20,624 | Direct |
| 08 May, 2026 | Ralph Lewis Ropp | Director | Acquired A | 6,320 | $0.00 | $0 | 21,007 | Direct |
| 08 May, 2026 | Arcilia Acosta | Director | Acquired A | 6,320 | $0.00 | $0 | 134,569 | Direct |
| 08 May, 2026 | David M. Khani | Director | Acquired A | 6,320 | $0.00 | $0 | 22,622 | Direct |
| 08 May, 2026 | Dan F Smith | Director | Acquired A | 8,028 | $0.00 | $0 | 127,232 | Direct |
| 30 Mar, 2026 | Shandell Szabo | Director | Disposed S | 11,731 | $31.98 | $375.17K | 14,304 | Direct |