SEC ownership of MACH NATURAL RESOURCES LP

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001980088.

Comparable stake leader

BCE-Mach Aggregator LLC

Disclosed value leader

William W. McMullen

Comparable rows

50/50

Latest evidence

30 Jun 2026

Top shareholders Insider holders Latest transactions
Public ticker
MNR on NYSE
Parsed ownership sources
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
BCE-Mach Aggregator LLC
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BCE-Mach Aggregator LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001980088
Issuer location
Oklahoma City, OK

Ownership snapshot

Top shareholders of MACH NATURAL RESOURCES LP (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
BCE-Mach Aggregator LLC
Disclosed value leader
William W. McMullen
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G 3/4/5 13F Lead comparable stake: 63% 13D/G row: BCE-Mach Aggregator LLC Showing 1-8 of 50 holder rows.

Quick read

BCE-Mach Aggregator LLC leads the comparable SEC ownership view at 63%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BCE-Mach Aggregator LLC's linked filing trail.
Comparable ownership Top 5
BCE-Mach Aggregator LLC 63%
IKAV General Partner S.a r.l. 14%
KAYNE ANDERSON CAPITAL ADVISORS LP 9.2%
Tom L. Ward 8.4%
William W. McMullen 45%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BCE-Mach Aggregator LLC
13D/G
Bayou City Energy Management LLC
13D/G
63%
$1,010,722,806
74,812,939 shares
 +$7,099,897 10 Jun 2025
IKAV General Partner S.a r.l.
13D/G 3/4/5
10%+ Owner
13D/G 3/4/5
14%
$298,697,218
23,631,109 shares
 -$88,229,159 30 Jun 2026
KAYNE ANDERSON CAPITAL ADVISORS LP
13D/G 3/4/5 13F
KAYNE ANDERSON CAPITAL ADVISORS, L.P. · Former 10% Owner · Company
13D/G 3/4/5 13F
9.2%
$209,333,948
15,517,713 shares
 -$49,506,519 08 Apr 2026
Tom L. Ward
3/4/5 13D/G
Officer, Director, Other*, 10%+ Owner
3/4/5 13D/G
8.4%
from 13D/G
$542,004,834
41,227,087 shares
 +$3,965,119 08 Apr 2026
William W. McMullen
3/4/5
Director, Other*, 10%+ Owner
3/4/5
45%
$1,020,340,668
74,859,917 shares
 +$555,630 19 Mar 2026
VEPU Inc.
3/4/5
10%+ Owner
3/4/5
12%
$271,207,986
19,371,999 shares
 -$71,193,868 15 May 2026
Sabinal Energy Operating, LLC
3/4/5
Former 10% Owner
3/4/5
9.3%
$171,315,551
15,517,713 shares
 — 08 Apr 2026
Kevin R. White
3/4/5
Officer, Other*
3/4/5
0.27%
$5,753,092
455,871 shares
 — 09 Feb 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$137,839,066.

Buys
$4,548,670
Insiders: 3
Sells
$142,387,736
Insiders: 2
Net
-$137,839,066
Shares: -10,749,179
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 366,179 Shares: 11,115,358
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 164,541 11,115,358 $2,156,711 $142,387,736 -$140,231,025
6-9 0 0 $0 $0 $0
9-12 201,638 0 $2,391,958 $0 +$2,391,958

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-13 of 13 reporting-owner rows connected to MACH NATURAL RESOURCES LP. Open a relationship link for the CIK-to-CIK filing trail.

Rows
13
Largest Forms 3/4/5 holder
William W. McMullen
Net 12M change
-$137,839,067
Latest report
15 May 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
William W. McMullen Director, Other*, 10%+ Owner $1,020,340,668 +$555,630 +0.05% Filing P/S 19 Mar 2026
Tom L. Ward Officer, Director, Other*, 10%+ Owner $542,004,834 +$3,965,119 +0.74% Mixed 08 Apr 2026
IKAV General Partner S.a r.l. 10%+ Owner $271,207,986 -$71,193,868 -21% Mixed 15 May 2026
VEPU Inc. 10%+ Owner $271,207,986 -$71,193,868 -21% Mixed 15 May 2026
Sabinal Energy Operating, LLC Former 10% Owner $171,315,551 Mixed 08 Apr 2026
KAYNE ANDERSON CAPITAL ADVISORS LP Former 10% Owner $171,315,551 Mixed 08 Apr 2026
Reineke Daniel T. Jr. Officer, Other* $13,553,844 Mixed 27 Oct 2023
Kevin R. White Officer, Other* $5,753,092 Mixed 09 Feb 2026
Michael E. Reel Officer, Other* $1,082,997 Mixed 09 Feb 2026
Frank A. Keating Director, Other* $362,723 Mixed 28 Oct 2025
Edgar R. Giesinger Jr. Director, Other* $362,723 Mixed 28 Oct 2025
Stephen C. Perich Director, Other* $362,723 Mixed 28 Oct 2025
Christopher Burn Director, Other* $215,879 +$27,920 +15% Filing P/S 19 Mar 2026

Recent insider transactions for MACH NATURAL RESOURCES LP

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
IKAV General Partner S.a r.l. MNR Common Units Other -6.84% -1,422,476 19,371,999 15 May 2026 See footnote
IKAV General Partner S.a r.l. MNR Common Units Other -6.84% -1,422,476 19,371,999 15 May 2026 See footnote
Tom L. Ward MNR Common Units Purchase $999,995 $13.05 76,628 76,628 13 Apr 2026 Held by WCT Resources LLC
Tom L. Ward MNR Common Units Purchase 0.58% $999,995 $13.05 76,628 13,295,039 13 Apr 2026 Held by Tom L. Ward 1992 Revocable Living Trust
IKAV General Partner S.a r.l. MNR Common Units Sale -56.6% $71,193,868 $12.81 -5,557,679 4,259,110 08 Apr 2026 See Footnotes
IKAV General Partner S.a r.l. MNR Common Units Sale -56.6% $71,193,868 $12.81 -5,557,679 4,259,110 08 Apr 2026 See Footnotes
Kayne Anderson Capital Advisors Lp MNR Common Units Other -18.2% -3,442,321 15,517,713 08 Apr 2026 Sabinal Energy Operating, LLC
Kayne Anderson Capital Advisors Lp MNR Common Units Other -18.2% -3,442,321 15,517,713 08 Apr 2026 Sabinal Energy Operating, LLC
William W. McMullen MNR Common Units Purchase $43,820 $13.63 3,215 74,859,917 23 Mar 2026 See footnote
Christopher Burn MNR Common Units Purchase 6.86% $13,850 $13.85 1,000 15,587 20 Mar 2026 Direct
William W. McMullen MNR Common Units Purchase $35,000 $14.00 2,500 74,856,702 20 Mar 2026 See footnote
Christopher Burn MNR Common Units Purchase 7.36% $14,070 $14.07 1,000 14,587 19 Mar 2026 Direct
William W. McMullen MNR Common Units Purchase $49,980 $14.00 3,570 74,854,202 19 Mar 2026 See footnote
Kevin R. White MNR Common Units Tax liability -1.22% -5,627 455,871 11 Feb 2026 Direct
Michael E. Reel MNR Common Units Tax liability -2.87% -2,532 85,816 11 Feb 2026 Direct
Kevin R. White MNR Common Units Award 2.64% 11,886 461,498 09 Feb 2026 Direct
Michael E. Reel MNR Common Units Award 6.19% 5,151 88,348 09 Feb 2026 Direct
Kayne Anderson Capital Advisors Lp MNR Common Units Other -1.19% -227,547 18,960,034 09 Feb 2026 Sabinal Energy Operating, LLC
Christopher Burn MNR Common Units Award 13,587 13,587 01 Jan 2026 Direct
William Wallace McMullen MNR Common Units Purchase 0.02% $215,600 $12.32 17,500 74,850,632 09 Dec 2025 See footnote
William Wallace McMullen MNR Common Units Purchase 0.02% $156,625 $12.53 12,500 74,833,132 08 Dec 2025 See footnote
Tom L. Ward MNR Common Units Purchase 31.5% $465,200 $11.63 40,000 167,030 26 Nov 2025 Held by Tom L. Ward Family Foundation
Tom L. Ward MNR Common Units Purchase 52.4% $499,907 $11.45 43,660 127,030 25 Nov 2025 Held by Tom L. Ward Family Foundation
Tom L. Ward MNR Common Units Purchase 100.3% $500,045 $11.98 41,740 83,370 17 Nov 2025 Held by Tom L. Ward Family Foundation
William Wallace McMullen MNR Common Units Purchase 0.01% $54,605 $11.85 4,608 74,820,632 14 Nov 2025 See footnote
Tom L. Ward MNR Common Units Purchase $499,976 $12.01 41,630 41,630 14 Nov 2025 Held by Tom L. Ward Family Foundation
Edgar R. Giesinger Jr. MNR Common Units Award 70.5% 12,039 29,111 28 Oct 2025 Direct
Stephen C. Perich MNR Common Units Award 70.5% 12,039 29,111 28 Oct 2025 Direct
Kevin R. White MNR Common Units Tax liability -2.2% -10,107 449,612 28 Oct 2025 Direct
Michael E. Reel MNR Common Units Tax liability -3.13% -2,692 83,197 28 Oct 2025 Direct
Tom L. Ward MNR Common Units Tax liability -0.08% -10,722 13,728,593 28 Oct 2025 Direct
Frank A. Keating MNR Common Units Award 70.5% 12,039 29,111 28 Oct 2025 Direct
* marks a reported price that did not pass the local price check.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .