Mach Natural Resources MNR Insider Ownership

NYSE MNR

$10.76 -0.03 (-0.28%)

As of: Oct 20, 2026 · 3:59 PM EDT

The most recent Mach Natural Resources (MNR) insider transaction: William Wallace Mcmullen (Director, TenPercentOwner, Other) bought 22,124 shares worth about $248.90K on Sep 15, 2026, reported on Form 4 on Sep 17, 2026. So far in the quarter ending Dec 31, 2026, insider holdings showed no net buying or selling.

Updated Oct 5, 2026 Mach Natural Resources (MNR) stock price and overview

Insider Holdings by Owner

124.66Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

82.83%

▲+0.226% pp QoQ

Shares Held by Insiders

138.78Mn

filed for Sep 2026

▲+0.27% QoQ

Shares Outstanding

167.54Mn

167,544,000 shares

Direct Holdings

14.89Mn

Indirect: 123.89Mn

Net Shares Traded (QoQ)

+379.34K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

Over the past year, MNR insiders bought $6.94 million of stock (573.11K shares) and sold $71.19 million (5.56Mn shares) on the open market.

Behind Mach Natural Resources' open-market trades in the past 12 months were 3 insiders buying and one insider selling.
Among Mach Natural Resources' insiders, Tom L. Ward (Director, officer and 10% owner) was the largest open-market buyer over the past 12 months, purchasing $5.97 million of stock (492.7K shares), most recently on September 14, 2026.
Meanwhile, the largest open-market sales of MNR in the past 12 months were by Ikav General Partner S.A R.L. (10% owner), totaling $71.19 million (5.56Mn shares), most recently on April 8, 2026.
The latest open-market trade on record is a purchase of 34.51K shares for $388,902 by William Wallace McMullen (Director and 10% owner) on September 15, 2026.
Apart from open-market trades, MNR insiders received 42.66K shares in stock awards and gave up 31.68K shares to cover taxes or exercise prices in the past 12 months.
Business Quant data puts insider holdings in MNR at 138.78Mn shares across insiders' latest Form 4 filings, up 0.27% from 138.4Mn shares at the end of Q2 2026.
Direct holdings account for 14.89Mn shares (10.73%) of MNR's insider total, and indirect holdings through trusts, partnerships and family members for 123.89Mn shares (89.27%).
Holdings in Mach Natural Resources stock are reported by 10 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Mach Natural Resources' three largest insider shareholders, based on their latest Form 4 filings, are William Wallace McMullen (Director and 10% owner, 74.89Mn shares), Tom L. Ward (Director, officer and 10% owner, 28.35Mn shares) and Ikav General Partner S.A R.L. (10% owner, 19.37Mn shares).
Of the shares held by MNR insiders, 53.97% belong to William Wallace McMullen.
Institutions owned 15.44% of MNR shares as of Q2 2026; insiders' latest Form 4 filings account for about 82.83%, leaving roughly 1.73% with other investors, including the public.
Over the trailing 12 months, 10 insiders reported transactions in MNR stock across 23 Form 4 filings.
These insider figures for Mach Natural Resources are based on Form 4 filings through September 17, 2026.

Form 4 Holdings

Insiders Holding MNR

Insiders 11

Shares held 124.66Mn

Of outstanding 74.41%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	William Wallace Mcmullen	Director, TenPercentOwner, Other	22,124	74,872,307	74,894,431	60.1%	17 Sep, 2026
2	General Partner S.A R.L. Ikav	TenPercentOwner	0	19,371,999	19,371,999	15.5%	19 May, 2026
3	Anderson Capital Advisors Lp Kayne	Other	0	15,517,713	15,517,713	12.4%	08 Apr, 2026
4	Tom L. Ward	Director, Officer, TenPercentOwner, Other	0	13,467,452	13,467,452	10.8%	16 Sep, 2026
5	Daniel T Jr. Reineke	Officer, Other	767,054	0	767,054	0.6%	31 Oct, 2023
6	Kevin R. White	Officer, Other	455,871	0	455,871	0.4%	11 Feb, 2026
7	Michael E Reel	Officer, Other	85,816	0	85,816	0.1%	11 Feb, 2026
8	Frank A Keating	Director, Other	29,111	0	29,111	0.0%	30 Oct, 2025
9	Stephen C Perich	Director, Other	29,111	0	29,111	0.0%	30 Oct, 2025
10	Edgar R. Jr. Giesinger	Director, Other	29,111	0	29,111	0.0%	30 Oct, 2025
11	Christopher Burn	Director, Other	15,587	0	15,587	0.0%	23 Mar, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

71 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
15 Sep, 2026	William Wallace Mcmullen	Director, TenPercentOwner, Other	Acquired P	22,124	$11.25	$248.90K	22,124	Direct
15 Sep, 2026	William Wallace Mcmullen	Director, TenPercentOwner, Other	Acquired P	12,390	$11.30	$140.01K	74,872,307	Indirect
14 Sep, 2026	Tom L. Ward	Director, Officer, TenPercentOwner, Other	Acquired P	172,413	$11.60	$2.00Mn	13,467,452	Indirect
15 May, 2026	General Partner S.A R.L. Ikav	TenPercentOwner	Disposed J	1,422,476	$14.06	$20.00Mn	19,371,999	Indirect
13 Apr, 2026	Tom L. Ward	Director, Officer, TenPercentOwner, Other	Acquired P	76,628	$13.05	$1,000.00K	13,295,039	Indirect
13 Apr, 2026	Tom L. Ward	Director, Officer, TenPercentOwner, Other	Acquired P	76,628	$13.05	$1,000.00K	76,628	Indirect
08 Apr, 2026	General Partner S.A R.L. Ikav	TenPercentOwner	Disposed S	4,612,874	$12.81	$59.09Mn	20,794,475	Indirect
08 Apr, 2026	General Partner S.A R.L. Ikav	TenPercentOwner	Disposed S	944,805	$12.81	$12.10Mn	4,259,110	Indirect
08 Apr, 2026	Anderson Capital Advisors Lp Kayne	Other	Disposed J	3,442,321	$12.81	$44.10Mn	15,517,713	Indirect
19 Mar, 2026	William Wallace Mcmullen	Director, TenPercentOwner, Other	Acquired P	3,570	$14.00	$49.98K	74,854,202	Indirect
19 Mar, 2026	Christopher Burn	Director, Other	Acquired P	1,000	$14.07	$14.07K	14,587	Direct
20 Mar, 2026	William Wallace Mcmullen	Director, TenPercentOwner, Other	Acquired P	2,500	$14.00	$35.00K	74,856,702	Indirect
20 Mar, 2026	Christopher Burn	Director, Other	Acquired P	1,000	$13.85	$13.85K	15,587	Direct
23 Mar, 2026	William Wallace Mcmullen	Director, TenPercentOwner, Other	Acquired P	3,215	$13.63	$43.82K	74,859,917	Indirect
09 Feb, 2026	Kevin R. White	Officer, Other	Acquired A	11,886	$12.62	$150.00K	461,498	Direct
09 Feb, 2026	Anderson Capital Advisors Lp Kayne	TenPercentOwner	Disposed J	227,547	$14.56	$3.31Mn	18,960,034	Indirect
09 Feb, 2026	Michael E Reel	Officer, Other	Acquired A	5,151	$12.62	$65.01K	88,348	Direct
11 Feb, 2026	Kevin R. White	Officer, Other	Disposed F	5,627	$12.62	$71.01K	455,871	Direct
11 Feb, 2026	Michael E Reel	Officer, Other	Disposed F	2,532	$12.62	$31.95K	85,816	Direct
01 Jan, 2026	Christopher Burn	Director, Other	Acquired A	13,587	$11.04	$150.00K	13,587	Direct

Showing 1 to 20 of 71 transactions