John B Walker
CIK 1374442 · Exec. Chairman of the Board · last filed 2024-09-25
"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.
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Disclosed Exposure
$240.25M
Companies
4
Total Filings
78
Lifetime Open-Market Net
-$1.69B
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGY | Director | 9,714,888 | $24.73 | $240.25M | -$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 · Page 3 of 8
78 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2018-09-12 | Magnolia Oil & Gas Corp (MGY.WS) Delisted | Buy (P) | +160,000 | $2.20M | EDGAR |
| 2018-09-06 | Magnolia Oil & Gas Corp (MGY.WS) Delisted | Grant (A) | +1,243,630 | $0 | EDGAR |
| 2018-08-24 | Magnolia Oil & Gas Corp (MGY.WS) Delisted | Grant (A) | +1,254,630 | $0 | EDGAR |
| 2017-01-18 | EV Energy Partners, LP (EVEP) Delisted | Exer (M) | +46,625 | $0 | EDGAR |
| 2016-12-12 | EV Energy Partners, LP (EVEP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2016-01-20 | EV Energy Partners, LP (EVEP) Delisted | Exer (M) | +26,000 | $0 | EDGAR |
| 2015-12-09 | EV Energy Partners, LP (EVEP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-11-12 | EV Energy Partners, LP (EVEP) Delisted | Buy (P) | +100,000 | $390.3K | EDGAR |
| 2015-04-13 | EV Energy Partners, LP (EVEP) Delisted | Buy (P) | +300,000 | $4.28M | EDGAR |
| 2015-01-20 | EV Energy Partners, LP (EVEP) Delisted | Exer (M) | +33,500 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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.
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.