MGY · Insider trading · 13F holders · Congress trades
Magnolia Oil & Gas Corp (MGY)
Who is buying and selling MGY: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 16
- Insider buys, 90 days
- $325K
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 8
MGY at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 MGY insiders filed 3 open-market purchases worth $325K on SEC Form 4.
- 16 13F filers hold MGY among their 50 largest positions, worth $284.8M combined. The biggest bets by portfolio weight are Ritter Alpha, LP (5.6%), Corigliano Investment Advisers, LLC (4.9%) and Oak Family Advisors, LLC (2.0%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- Members of Congress have disclosed 12 MGY trades since 2021, 3 purchases and 5 sales in the past year; the latest was Lisa C. McClain (R-MI), selling $1K–15K on Oct 31, 2025.
- MGY last closed at $26.22 on Oct 29, 2026.
MGY insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 MGY insiders filed 3 open-market purchases worth $325K on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | Khani David M. | Director | Buy | 54 | $26.78 | $1K | SEC |
| Aug 11, 2026 | Khani David M. | Director | Buy | 8,000 | $25.00 | $200K | SEC |
| Aug 11, 2026 | Ropp Ralph Lewis | Director | Buy | 5,000 | $24.63 | $123K | SEC |
Who owns MGY? Hedge funds and superinvestors
16 13F filers hold MGY among their 50 largest positions, worth $284.8M combined. The biggest bets by portfolio weight are Ritter Alpha, LP (5.6%), Corigliano Investment Advisers, LLC (4.9%) and Oak Family Advisors, LLC (2.0%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| GW&K Investment Management, LLCWealth manager | 0.6% | $74.6M | 2,917,419 | -5.3% shares | Q2 2026 |
| Systematic Financial Management LPInstitutional asset manager | 1.4% | $71.0M | 2,777,352 | -1.3% shares | Q2 2026 |
| Deprince Race & Zollo IncInstitutional asset manager | 0.9% | $49.7M | 2,115,127 | — | Q3 2026 |
| Conestoga Capital Advisors, LLCMutual fund manager | 0.5% | $23.9M | 935,605 | — | Q2 2026 |
| Heartland Advisors IncMutual fund manager | 0.7% | $15.7M | 615,475 | -2.4% shares | Q2 2026 |
| Corigliano Investment Advisers, LLCWealth manager | 4.9% | $12.6M | 398,000 | -35.5% shares | Q1 2026 |
| Edgestream Partners, L.P.Hedge fund | 0.4% | $12.2M | 478,721 | +35.6% shares | Q2 2026 |
| Oak Family Advisors, LLCWealth manager | 2.0% | $6.4M | 271,528 | — | Q3 2026 |
| Moody Aldrich Partners LLCAsset manager | 1.2% | $6.4M | 270,544 | — | Q3 2026 |
| SIR Capital Management, L.P.Hedge fund | 0.7% | $5.8M | 227,667 | -73.3% shares | Q2 2026 |
| CoreCommodity Management, LLCMutual fund manager | 0.4% | $1.8M | 71,816 | +1.8% shares | Q2 2026 |
| Albert D Mason IncWealth manager | 0.9% | $1.5M | 62,806 | +0.9% shares | Q3 2026 |
| Planning Project LLCWealth manager | 0.3% | $1.4M | 53,409 | — | Q2 2026 |
| Bosman Wealth Management, LLCWealth manager | 0.6% | $894K | 38,038 | +0.0% shares | Q3 2026 |
| MQS Management LLCHedge fund | 0.7% | $543K | 21,230 | — | Q2 2026 |
| Ritter Alpha, LPHedge fund | 5.6% | $267K | 8,450 | New | Q1 2026 |
Each manager counts with its latest 13F (Q3 2026: 5, Q2 2026: 9, Q1 2026: 2). Screen MGY in the grand portfolio →
MGY stock trades by members of Congress
Members of Congress have disclosed 12 MGY trades since 2021, 3 purchases and 5 sales in the past year; the latest was Lisa C. McClain (R-MI), selling $1K–15K on Oct 31, 2025.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Nov 21, 2025 | Lisa C. McClainR-MI · House | Sale | $1K–15K | Oct 31, 2025 | +17.8% |
| Nov 21, 2025 | Lisa C. McClainR-MI · House | Buy | $1K–15K | Oct 30, 2025 | +18.1% |
| Nov 21, 2025 | Lisa C. McClainR-MI · House | Sale | $1K–15K | Oct 30, 2025 | +18.1% |
| Sep 12, 2025 | Lisa C. McClainR-MI · House | Buy | $1K–15K | Aug 4, 2025 | +11.1% |
| Aug 14, 2025 | Gilbert Ray Cisneros, Jr.D-CA · House | Sale | $1K–15K | Jul 7, 2025 | +17.6% |
| Aug 13, 2025 | Lisa C. McClainR-MI · House | Sale | $1K–15K | Jun 24, 2025 | +14.1% |
| Aug 13, 2025 | Lisa C. McClainR-MI · House | Buy | $1K–15K | Jun 11, 2025 | +11.4% |
| May 14, 2025 | Josh GottheimerD-NJ · House | Sale | $1K–15K | Apr 9, 2025 | +19.7% |
| Oct 16, 2022 | Josh GottheimerD-NJ · House | Sale | $1K–15K | Sep 27, 2022 | +41.4% |
| May 16, 2022 | Josh GottheimerD-NJ · House | Sale | $1K–15K | Apr 21, 2022 | +6.3% |
| Apr 21, 2021 | Josh GottheimerD-NJ · House | Buy | $1K–15K | Mar 31, 2021 | +130.5% |
| Apr 21, 2021 | Josh GottheimerD-NJ · House | Buy | $1K–15K | Mar 4, 2021 | +121.1% |
3 members have traded MGY: Lisa C. McClain, Gilbert Ray Cisneros, Jr., Josh Gottheimer.
MGY questions and answers
Are insiders buying MGY stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 MGY insiders filed 3 open-market purchases worth $325K on SEC Form 4.
Which hedge funds own MGY?
16 13F filers hold MGY among their 50 largest positions, worth $284.8M combined. The biggest bets by portfolio weight are Ritter Alpha, LP (5.6%), Corigliano Investment Advisers, LLC (4.9%) and Oak Family Advisors, LLC (2.0%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded MGY?
Members of Congress have disclosed 12 MGY trades since 2021, 3 purchases and 5 sales in the past year; the latest was Lisa C. McClain (R-MI), selling $1K–15K on Oct 31, 2025.
Who is the largest holder of MGY?
Among 13F filers, GW&K Investment Management, LLC reports the largest MGY position, $74.6M (2,917,419 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Ritter Alpha, LP's: 5.6% of its portfolio.
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