WM
William Wallace McMullen (Director) filed 2 Form 4 reports in the trailing twelve months (2 purchases, 0 sales), most often in Mach Natural Resources LP (MNR). Across 2 priced purchase filings, the average 21-session return was -7.5% from execution and -6.4% from disclosure (delay-adjusted; derived). The largest single filing was $389K of MNR (34,514 sh across 2 lots, as filed), executed Sep 15. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
-7.5%
avg across 2 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-6.4%
same 2 filings, from disclosure
Filings, ttm
2
2 buys · 0 sells
Median delay
2d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$761K
shares × price, as filed
Last traded
Sep 15
Filed Sep 17
Median ADV $5.6M across their filed names
Impact on $10,000 · 12M
$8,734 (-12.7%)
S&P 500 $10,907 (+9.1%) · 21.7 pts behind
William Wallace McMullen
S&P 500
Derived: compounded across filings from disclosure dates · past 12 months
Open performance→Volume by month
Buys $102.1M
Sells $0
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Energy
2 filings
Sector per market data · by filing · past 12 months
Most traded names
MNRRecent filings
MNRPURCHASE
Mach Natural Resources LP
View filing →
$389K34,514 sh across 2 lots
Exec Sep 15
Filed Sep 17 · 5:11 PM ET MNRPURCHASE Mach Natural Resources LP View filing → $372K
30,000 sh across 2 lots
Exec Dec 8 2025
Filed Dec 10 2025 · 4:05 PM ET MNRPURCHASE Mach Natural Resources LP View filing → $4.2M
280,400 sh across 2 lots
Exec Jun 13 2025
Filed Jun 17 2025 · 5:30 PM ET MNRPURCHASE Mach Natural Resources LP View filing → $3.4M
245,129 sh across 3 lots
Exec Jun 10 2025
Filed Jun 12 2025 · 5:30 PM ET MNRPURCHASE Mach Natural Resources LP View filing → $80.0M
5,161,290 sh × $15.50
Exec Feb 7 2025
Filed Feb 10 2025 · 5:30 PM ET MNRPURCHASE Mach Natural Resources LP View filing → $8.7M
562,729 sh across 3 lots
Exec Dec 13 2024
Filed Dec 17 2024 · 5:30 PM ET MNRPURCHASE Mach Natural Resources LP View filing → $5.0M
336,758 sh across 3 lots
Exec Dec 10 2024
Filed Dec 12 2024 · 5:30 PM ET