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Insider · CIK 0001730172

William Wallace McMullen

directorownerother

Files at MNR (MACH NATURAL RESOURCES LP). First filing Dec 12, 2024, latest Sep 17, 2026.

In brief

William Wallace McMullen files SEC Form 4 as director and 10% owner at MNR (MACH NATURAL RESOURCES LP). Since Dec 12, 2024, William Wallace McMullen has reported 10 open-market buys worth $102M and 0 open-market sells worth $0, the latest filed on Sep 17, 2026.

A track record needs three past buys with six months of prices behind them; William Wallace McMullen has 0, so none is measured yet.

The newest scored trade: bought $389k of MNR on Sep 15, 2026, filed Sep 17, 2026, scored 51 (moderate). In the last 12 months: 4 buys worth $945k and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
10 / 0
$102M bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

MNR: MACH NATURAL RESOURCES LP

MNROct 9, 2026 · close 10.73

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
51Moderate
MNRbuy 2
MACH NATURAL RESOURCES LP
$389k
34,514 shares
-+16% from low-19% from high
29Weak
MNRbuy 2
MACH NATURAL RESOURCES LP
$129k
9,285 shares
+0%+35% from low-1% from high
52Moderate
MNRbuy 2
MACH NATURAL RESOURCES LP
$372k
30,000 shares
+0%+9% from low-23% from high
39Weak
MNRbuy 2
MACH NATURAL RESOURCES LP
$55k
4,608 shares
+0%+5% from low-26% from high
21Weak
MNRbuy
MACH NATURAL RESOURCES LP
$44k
3,085 shares
+0%+17% from low-14% from high
40Moderate
MNRbuy
MACH NATURAL RESOURCES LP
$4.2M
280,400 shares
+0%+19% from low-12% from high
39Weak
MNRbuy
MACH NATURAL RESOURCES LP
$3.4M
245,129 shares
+0%+11% from low-19% from high
48Moderate
MNRbuy
MACH NATURAL RESOURCES LP
$80M
5,161,290 shares
+7%-
40Moderate
MNRbuy
MACH NATURAL RESOURCES LP
$8.7M
562,729 shares
+1%-
35Weak
MNRbuy
MACH NATURAL RESOURCES LP
$5.0M
336,758 shares
+0%-

Transactions

Every row this insider has filed, 22 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Sep 15, 2026MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Units
+22,124$11.25$249k22,12426 d ago
Sep 15, 2026MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+12,390$11.30$140k74,872,30726 d ago
Mar 19, 2026MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+3,570$14.00$50k74,854,202Mar 23, 2026
Mar 20, 2026MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+2,500$14.00$35k74,856,702Mar 23, 2026
Mar 23, 2026MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+3,215$13.63$44k74,859,917Mar 23, 2026
Dec 8, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+12,500$12.53$157k74,833,132Dec 10, 2025
Dec 9, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+17,500$12.32$216k74,850,632Dec 10, 2025
Nov 14, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+4,608$11.85$55k74,820,632Nov 18, 2025
Aug 11, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+3,085$14.39$44k74,816,024Aug 12, 2025
Jun 13, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+135,500$14.72$2.0M74,668,039Jun 17, 2025
Jun 16, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+144,900$14.96$2.2M74,812,939Jun 17, 2025
Jun 10, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+79,218$13.58$1.1M74,366,628Jun 12, 2025
Jun 11, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+72,411$14.01$1.0M74,439,039Jun 12, 2025
Jun 12, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: See footnote
+93,500$14.29$1.3M74,532,539Jun 12, 2025
Feb 7, 2025MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+5,161,290$15.50$80M74,287,410Feb 10, 2025
Dec 13, 2024MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+98,751$15.28$1.5M68,662,142Dec 17, 2024
Dec 16, 2024MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+150,000$15.33$2.3M68,812,142Dec 17, 2024
Dec 17, 2024MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+313,978$15.62$4.9M69,126,120Dec 17, 2024
Dec 10, 2024MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+65,000$14.83$964k68,291,633Dec 12, 2024
Dec 11, 2024MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+125,000$14.99$1.9M68,416,633Dec 12, 2024
Dec 12, 2024MNR
MACH NATURAL RESOURCES LP
POpen-market purchase
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
+146,758$15.01$2.2M68,563,391Dec 12, 2024
Oct 27, 2023MNR
MACH NATURAL RESOURCES LP
DDisposition to issuer
Common Unitsindirect: Held by BCE-Mach Aggregator LLC
-3,009,999$17.67$53M68,226,633Oct 31, 2023

Questions about William Wallace McMullen

Answered from the filings on this page, as of the latest one.

Is William Wallace McMullen buying or selling?

In the last 12 months William Wallace McMullen reported 4 open-market buys worth $945k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $389k of MNR on Sep 15, 2026. Grants, option exercises and tax withholding are not counted.

How did William Wallace McMullen's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and William Wallace McMullen has 0.

Where does William Wallace McMullen file Form 4?

William Wallace McMullen has filed Form 4 at MNR (MACH NATURAL RESOURCES LP). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

William Wallace McMullen: insider trades and track record | InsiderTell