Insider transactions

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
$254.48M
Companies
4
Total Filings
78
Lifetime Open-Market Net
-$1.69B

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 month

Dollar 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

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most 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

Reported Address
NINE GREENWAY PLAZA
SUITE 1300
HOUSTON, TX 77046
Related Filers
Magnolia Oil & Gas Corp — 24 joint filings, latest 2024-09-25
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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 $26.20 $254.48M -$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 4 of 8

78 filings
Insider 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
2014-12-12 EV Energy Partners, LP (EVEP) Delisted Buy (P) +80,000 $1.86M EDGAR
2014-12-10 EV Energy Partners, LP (EVEP) Delisted Grant (A) — $0 EDGAR
2014-12-08 EV Energy Partners, LP (EVEP) Delisted Buy (P) +70,000 $1.81M EDGAR
2014-11-12 EV Energy Partners, LP (EVEP) Delisted Buy (P) +3,000 $87.4K EDGAR
2014-07-18 — Disp (D) −23,538 $0
2014-01-17 EV Energy Partners, LP (EVEP) Delisted Exer (M) +37,000 $0 EDGAR
2013-12-24 EV Energy Partners, LP (EVEP) Delisted Buy (P) +5,600 $190.7K EDGAR
2013-12-23 EV Energy Partners, LP (EVEP) Delisted Buy (P) +150,000 $4.81M EDGAR
2013-12-18 EV Energy Partners, LP (EVEP) Delisted Grant (A) — $0 EDGAR
2013-10-22 EV Energy Partners, LP (EVEP) Delisted Buy (P) +135,000 $4.98M EDGAR
Showing 31–40 of 78
Page 4 of 8
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.