John B Walker
CIK 1374442 · Exec. Chairman of the Board · last filed 2024-09-25
John B Walker is an Exec. Chairman of the Board who has filed 78 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for MGY, was dated Sep 25, 2024. Across all open-market trades the lifetime net is −$1.69B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $257.1M across reported positions. 24 SEC filings were submitted jointly with Magnolia Oil & Gas Corp.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
MGY price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
SUITE 1300
HOUSTON, TX 77046
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGY | Director | 9,714,888 | $26.46 | $257.06M | -$1.71B | 17 | 2024-09-25 |
| Magnolia Oil & Gas Corp (MGY.WS) Delisted | Director | 34,910,029 | — | — | $2.20M | 6 | 2019-06-11 |
| EV Energy Partners, LP (EVEP) Delisted | Exec. Chairman of the Board | 2,785,365 | — | — | $23.46M | 52 | 2017-01-18 |
| PetroLogistics LP (PDH) Delisted | Director | 15,910 | — | — | $0 | 2 | 2013-05-13 |
Recent Filings
78 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-09-25 | MGY | Mixed | −2,065,558 | -$181.02M | EDGAR |
| 2024-05-15 | MGY | Mixed | −4,131,116 | -$306.96M | EDGAR |
| 2024-05-09 | MGY | Grant (A) | +6,364 | $0 | EDGAR |
| 2023-05-05 | MGY | Grant (A) | +7,517 | $0 | EDGAR |
| 2022-11-08 | MGY | Mixed | −2,616,373 | -$181.95M | EDGAR |
| 2022-06-06 | MGY | Mixed | −2,616,373 | -$202.57M | EDGAR |
| 2022-05-05 | MGY | Grant (A) | +5,284 | $0 | EDGAR |
| 2022-03-14 | MGY | Mixed | −2,754,077 | -$162.90M | EDGAR |
| 2022-02-07 | MGY | Mixed | −2,452,506 | -$156.57M | EDGAR |
| 2021-10-12 | MGY | Mixed | −1,377,038 | -$92.50M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.