DOSSIER · 13F Holders · Q1 2026

MACH NATURAL RESOURCES LP

2 institutions still hold MACH NATURAL RESOURCES LP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 55445L900·2 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$248K
visible holders
Holders
2
filers reporting
Concentration
99.44%
SIMPLEX TRADING, LLC #1
top holder share
AI Holders Summary · Q1 2026

2 institutions reported MACH NATURAL RESOURCES LP in Q1 2026. SIMPLEX TRADING, LLC leads at 99.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
SIMPLEX TRADING, LLC
CIK 0001488542
$246K18K0.00%Q1 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$1K1000.00%Q1 2026