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Diamondback Energy, Inc. 2025-2026 Proxy Voting Records

Compiled from SEC Form N-PX filings and Diamondback Energy, Inc.’s Form 8-K, filed May 20, 2026 (Item 5.07 on EDGAR). Page generated October 14, 2026.

16Reported items
910Asset managers
17,101Fund votes
May 20, 2026Meeting date

Results at a glance

Meeting of May 20, 2026: 15 items on Diamondback Energy, Inc.’s Form 8-K, filed May 20, 2026: 12 elected · 2 approved · 1 without a stated outcome.

Material dissent

None.

Material dissent: a director nominee under 80% of the votes cast, say-on-pay under 70%, any other item the board put forward under 80%, or a shareholder proposal with more than 50%, on the company’s own Form 8-K tally. How this is decided

Proxy season: 2023-2024 2024-2025 2025-2026

Explore Diamondback Energy, Inc. in the interactive database Compare manager voting policies

Official 2025-2026 meeting results reported by Diamondback Energy, Inc.

These tallies are Diamondback Energy, Inc.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed May 20, 2026 (Item 5.07, “Submission of Matters to a Vote of Security Holders”). They cover every share voted at the meeting, not just the funds that file Form N-PX.

Diamondback Energy, Inc. — official shareholder meeting results, meeting held May 20, 2026
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Support (of votes cast)	Reported outcome	Voting standard
Elect Director: Travis D. Stice	245,001,012	4,645,408	128,706	--	14,899,987	98%	Not verified	—
Elect Director: Vincent K. Brooks	233,617,270	16,010,785	147,071	--	14,899,987	94%	Elected	—
Elect Director: Darin G. Holderness	248,520,600	1,119,653	134,873	--	14,899,987	99.5%	Elected	—
Elect Director: Rebecca A. Klein	247,691,387	1,952,546	131,193	--	14,899,987	99.2%	Elected	—
Elect Director: Stephanie K. Mains	248,489,008	1,154,952	131,166	--	14,899,987	99.5%	Elected	—
Elect Director: Charles A. Meloy	246,700,371	2,935,825	138,930	--	14,899,987	99%	Elected	—
Elect Director: Mark L. Plaumann	242,371,379	7,262,887	140,860	--	14,899,987	97%	Elected	—
Elect Director: Robert K. Reeves	244,547,579	5,095,235	132,312	--	14,899,987	98%	Elected	—
Elect Director: Lance W. Robertson	245,238,726	4,402,765	133,635	--	14,899,987	98%	Elected	—
Elect Director: Melanie M. Trent	243,766,461	5,790,516	218,149	--	14,899,987	98%	Elected	—
Elect Director: Frank D. Tsuru	248,527,638	1,113,458	134,030	--	14,899,987	99.5%	Elected	—
Elect Director: Kaes Van't Hof	246,640,320	2,991,065	143,741	--	14,899,987	99%	Elected	—
Elect Director: Steven E. West	246,404,396	3,231,042	139,688	--	14,899,987	99%	Elected	—
2. The compensation paid to the Company's named executive officers	245,941,011	3,547,122	286,994	--	14,899,987	99%	Approved	—
4. Appointment of Grant Thornton LLP as the Company's independent auditor for the fiscal year ending December 31, 2026	263,223,128	1,308,991	142,994	--	--	99.5%	Approved	—

Source: Diamondback Energy, Inc., Form 8-K, filed with the SEC on May 20, 2026 — read the filing on EDGAR.

How asset managers voted at the Diamondback Energy, Inc. 2025-2026 meeting

Each item below shows how the 910 asset managers that disclosed a Diamondback Energy, Inc. vote in their SEC Form N-PX filings actually voted. Share totals are the shares those managers' funds voted, summed across every fund they report. These are reported items, not a count of the ballot: fund filings describe one ballot item in different words. Two descriptions are shown as one item only on evidence — the same text (or one cut short of the other), the same director nominee, or a match to the same row of Diamondback Energy, Inc.’s own Form 8-K tally — never because they merely read alike. A description that could not be joined that way is listed on its own, so one ballot item can appear more than once.

1. Elect Director: Vincent K. Brooks

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 7 wordings of this item as funds reported it.

94% Majority: yes · of votes cast

FOR 94%

FOR: 233,617,270AGAINST: 16,010,785

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Vincent K. Brooks

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Vincent K. Brooks”): 233,617,270 for, 16,010,785 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 94% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 97,773,142 for, 1,899,726 against, 8,253 abstained, 196 not voted.

FOR

FOR: 97,773,142AGAINST: 1,899,726ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Vincent K. Brooks” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,332,516	24,664	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,056,874	2,117	0	For
State Street	5,769,851	26	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,245,901	455	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	996,125	2,436	0	For
Bridge Builder Trust	900,250	51,471	0	Mixed
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	0	850,000	0	Against
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

2. Elect Director: Darin G. Holderness

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

99.5% Majority: yes · of votes cast

FOR 99.5%

FOR: 248,520,600AGAINST: 1,119,653

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Darin G. Holderness

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Darin G. Holderness”): 248,520,600 for, 1,119,653 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99.5% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,672,853 for, 17 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,672,853AGAINST: 17ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Darin G. Holderness” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,164	17	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,877	0	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

3. Elect Director: Rebecca A. Klein

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

99.2% Majority: yes · of votes cast

FOR 99.2%

FOR: 247,691,387AGAINST: 1,952,546

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Rebecca A. Klein

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Rebecca A. Klein”): 247,691,387 for, 1,952,546 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99.2% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,671,638 for, 1,231 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,671,638AGAINST: 1,231ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Rebecca A. Klein” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,149	31	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,057,884	1,107	0	For
State Street	5,769,877	0	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

4. Elect Director: Stephanie K. Mains

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

99.5% Majority: yes · of votes cast

FOR 99.5%

FOR: 248,489,008AGAINST: 1,154,952

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Stephanie K. Mains

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Stephanie K. Mains”): 248,489,008 for, 1,154,952 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99.5% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,672,853 for, 17 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,672,853AGAINST: 17ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Stephanie K. Mains” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,164	17	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,877	0	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

5. Elect Director: Charles A. Meloy

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

99% Majority: yes · of votes cast

FOR 99%

FOR: 246,700,371AGAINST: 2,935,825

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Charles A. Meloy

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Charles A. Meloy”): 246,700,371 for, 2,935,825 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,594,309 for, 50,061 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,594,309AGAINST: 50,061ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Charles A. Meloy” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,134	47	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,863	14	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

6. Elect Director: Mark L. Plaumann

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

97% Majority: yes · of votes cast

FOR 97%

FOR: 242,371,379AGAINST: 7,262,887

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Mark L. Plaumann

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Mark L. Plaumann”): 242,371,379 for, 7,262,887 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 97% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,339,782 for, 304,586 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,339,782AGAINST: 304,586ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Mark L. Plaumann” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,053	126	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,851	26	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	900,250	51,471	0	Mixed
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

7. Elect Director: Robert K. Reeves

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 244,547,579AGAINST: 5,095,235

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Robert K. Reeves

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Robert K. Reeves”): 244,547,579 for, 5,095,235 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 98% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,454,379 for, 189,990 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,454,379AGAINST: 189,990ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Robert K. Reeves” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,093	87	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,877	0	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	900,250	51,471	0	Mixed
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

8. Elect Director: Lance W. Robertson

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 245,238,726AGAINST: 4,402,765

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Lance W. Robertson

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Lance W. Robertson”): 245,238,726 for, 4,402,765 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 98% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,604,281 for, 50,086 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,604,281AGAINST: 50,086ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Lance W. Robertson” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,106	72	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,863	14	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

9. Elect Director: Travis D. Stice

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 5 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 245,001,012AGAINST: 4,645,408

Details: description as filed, official tally, votes by 183 asset managers

Description as filed by funds: Election of Directors: Travis D. Stice

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Travis D. Stice”): 245,001,012 for, 4,645,408 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 98% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 183 asset managers below reported 99,594,767 for, 59,601 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,594,767AGAINST: 59,601ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Travis D. Stice” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,114	65	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,863	14	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 183 asset managers. See all 183 in the interactive database.

10. Elect Director: Melanie M. Trent

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 243,766,461AGAINST: 5,790,516

Details: description as filed, official tally, votes by 182 asset managers

Description as filed by funds: Election of Directors: Melanie M. Trent

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Melanie M. Trent”): 243,766,461 for, 5,790,516 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 98% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 182 asset managers below reported 99,453,140 for, 192,177 against, 8,256 abstained, 196 not voted.

FOR

FOR: 99,453,140AGAINST: 192,177ABSTAIN: 8,256NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Melanie M. Trent” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,078	100	4	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,877	0	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	900,250	51,471	0	Mixed
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 182 asset managers. See all 182 in the interactive database.

11. Elect Director: Kaes Van't Hof

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 5 wordings of this item as funds reported it.

99% Majority: yes · of votes cast

FOR 99%

FOR: 246,640,320AGAINST: 2,991,065

Details: description as filed, official tally, votes by 182 asset managers

Description as filed by funds: Election of Directors: Kaes Van't Hof

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Kaes Van't Hof”): 246,640,320 for, 2,991,065 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 182 asset managers below reported 99,601,400 for, 50,927 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,601,400AGAINST: 50,927ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Kaes Van't Hof” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,139	39	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,863	14	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 182 asset managers. See all 182 in the interactive database.

12. Elect Director: Steven E. West

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 4 wordings of this item as funds reported it.

99% Majority: yes · of votes cast

FOR 99%

FOR: 246,404,396AGAINST: 3,231,042

Details: description as filed, official tally, votes by 182 asset managers

Description as filed by funds: Election of Directors: Steven E. West

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Steven E. West”): 246,404,396 for, 3,231,042 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 182 asset managers below reported 99,598,746 for, 53,584 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,598,746AGAINST: 53,584ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Steven E. West” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,134	47	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,863	14	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 182 asset managers. See all 182 in the interactive database.

13. Elect Director: Frank D. Tsuru

Official resultDIRECTOR ELECTIONSReported outcome: Elected

Combines 4 wordings of this item as funds reported it.

99.5% Majority: yes · of votes cast

FOR 99.5%

FOR: 248,527,638AGAINST: 1,113,458

Details: description as filed, official tally, votes by 181 asset managers

Description as filed by funds: Election of Directors: Frank D. Tsuru

Diamondback Energy, Inc.’s own tally for this item (“Elect Director: Frank D. Tsuru”): 248,527,638 for, 1,113,458 against, per its Form 8-K filed May 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: Elected, in the filing’s own words: “Proposal 1 Travis D. Stice, Vincent K. Brooks, Darin G. Holderness, Rebecca A. Klein, Stephanie K. Mains, Charles A. Meloy, Mark L. Plaumann, Robert K. Reeves, Lance W. Robertson, Melanie M. Trent, Frank D. Tsuru, Kaes Van't Hof and Steven E. West were elected to serve as the Company's directors un…”
Support: 99.5% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 181 asset managers below reported 99,643,263 for, 16 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,643,263AGAINST: 16ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “Election of Directors: Frank D. Tsuru” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,164	16	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,877	0	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 181 asset managers. See all 181 in the interactive database.

14. 2. The compensation paid to the Company's named executive officers

Official result Fund totals may overlapSECTION 14A SAY-ON-PAY VOTESReported outcome: Approved

Combines 20 wordings of this item as funds reported it.

99% Approved · of votes cast

FOR 99%

FOR: 245,941,011AGAINST: 3,547,122

Details: description as filed, official tally, votes by 908 asset managers

Description as filed by funds: TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS.

Diamondback Energy, Inc.’s own tally for this item (“2. The compensation paid to the Company's named executive officers”): 245,941,011 for, 3,547,122 against — passed, per its Form 8-K filed May 20, 2026 (Item 5.07).

Reported outcome: Approved, in the filing’s own words: “Proposal 2 The Company's stockholders approved, on an advisory basis, the compensation paid to the Company's named executive officers.”
Support: 99% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Also reported under other wordings, matched to the same row of Diamondback Energy, Inc.’s official tally and shown with their own fund figures; their managers are not in the figures or the table on this card: “SAY ON PAY” (3 managers, 41,224 for, 66 1 year).

Fund voting reports: 184 asset managers voting on “TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS.” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,306,910	50,268	5	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,055,590	3,401	0	For
State Street	5,766,028	3,849	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Fund voting reports, all 184 managers: 99,429,437 for, 264,512 against, 8,257 abstained, 197 not voted, 76 mixed. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports: 758 asset managers voting on “TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS.” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Vote
Wellington	12,104,058	0	For
Invesco	10,731,737	0	For
BlackRock	6,989,258	1,427	For
Fidelity	5,598,784	0	For
GEODE CAPITAL MANAGEMENT, LLC	5,317,126	0	For
Boston Partners	4,450,350	0	For
T. Rowe Price	3,621,071	0	For
State Street	3,325,836	12,288	For
Capital Group	3,295,146	0	For
Capital Research Global Investors	3,067,793	0	For
Vanguard	2,026,790	0	For
Newton Investment Management North America, LLC	1,674,192	0	For
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	1,554,122	0	For
Goldman Sachs	1,372,075	0	For
Northern Trust	1,326,604	0	For
PARAMETRIC PORTFOLIO ASSOCIATES LLC	1,288,076	0	For
American Century	1,283,920	0	For
Charles Schwab	1,282,255	0	For
MELLON INVESTMENTS Corp	1,086,413	0	For
Victory Capital	1,029,247	0	For
UBS	935,475	0	For
Robeco Institutional Asset Management B.V.	767,803	0	For
Amundi	741,092	0	For
Diamond Hill Capital Management, LLC (Investment Advisor)	701,769	0	For
Cornerstone Investment Partners, LLC	0	339,671	Against

Institutional-manager reports, all 758 managers: 98,993,131 for, 2,202,892 against, 40,046 abstained, 29,587 not voted, 562,436 1 year. Showing the 25 largest; see all in the interactive database.

15. TO APPROVE, ON AN ADVISORY BASIS, THE FREQUENCY OF HOLDING AN ADVISORY VOTE ON THE COMPENSATION PAID TO THE COMPANY'S…

No official match Fund totals may overlapSECTION 14A SAY-ON-PAY VOTES

Combines 6 wordings of this item as funds reported it.

100% Fund and manager reports combined; may count the same shares twice · no official result

1 YEAR

Details: description as filed, votes by 854 asset managers

Description as filed by funds: TO APPROVE, ON AN ADVISORY BASIS, THE FREQUENCY OF HOLDING AN ADVISORY VOTE ON THE COMPENSATION PAID TO THE COMPANY'S NAMED EXECUTIVE OFFICERS.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice). The figure above is FOR ÷ (FOR + AGAINST + WITHHELD) of the shares these managers voted; abstained and unvoted shares are in neither half, and these managers are a subset of all shareholders, not the meeting result.

Fund voting reports: 178 asset managers voting on “TO APPROVE, ON AN ADVISORY BASIS, THE FREQUENCY OF HOLDING AN ADVISORY VOTE ON THE COMPENSATION PAID TO THE CO” at Diamondback Energy, Inc., 2025-2026
Asset manager	Abstain	Vote
Vanguard	4	Abstain
Invesco	0	--
Fidelity	0	--
BlackRock	0	--
State Street	0	--
Capital Group	0	--
INVESTMENT CO OF AMERICA	0	--
John Hancock	0	--
JPMorgan	0	--
Pacer Funds Trust	0	--
Victory Capital	0	--
Hartford	0	--
Charles Schwab	0	Not Voted
Dimensional	0	--
MFS	0	--
BNY Mellon	0	--
Bridge Builder Trust	0	--
DIAMOND HILL FUNDS	0	--
Smead Funds Trust	0	--
T. Rowe Price	0	--
Jackson National	0	--
AMG FUNDS	0	--
American Century	0	--
First Trust	0	--
TIAA	0	--

Fund voting reports, all 178 managers: 96,711 for, 8,256 abstained, 197 not voted, 98,093,869 1 year, 1,440,324 3 year, 170,898 unknown, 76 mixed. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports: 709 asset managers voting on “TO APPROVE, ON AN ADVISORY BASIS, THE FREQUENCY OF HOLDING AN ADVISORY VOTE ON THE COMPENSATION PAID TO THE CO” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Withheld	Vote
Wellington	0	0	0	0	--
Invesco	0	0	0	0	--
BlackRock	0	0	0	0	--
Fidelity	0	0	0	0	--
GEODE CAPITAL MANAGEMENT, LLC	0	0	0	0	--
Boston Partners	0	0	0	0	--
T. Rowe Price	0	0	0	0	--
State Street	0	0	0	0	--
Capital Group	0	0	0	0	--
Capital Research Global Investors	0	0	0	0	--
Vanguard	0	0	0	0	--
Newton Investment Management North America, LLC	0	0	0	0	--
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	0	0	0	0	--
Goldman Sachs	0	0	0	0	--
Northern Trust	0	0	0	0	--
PARAMETRIC PORTFOLIO ASSOCIATES LLC	0	0	0	0	--
American Century	0	0	0	0	--
Charles Schwab	0	0	0	0	Not Voted
MELLON INVESTMENTS Corp	0	0	0	0	--
Victory Capital	0	0	0	0	--
UBS	0	0	0	0	--
Robeco Institutional Asset Management B.V.	0	0	0	0	--
Amundi	0	0	0	0	--
Diamond Hill Capital Management, LLC (Investment Advisor)	0	0	0	0	--
NEWTON INVESTMENT MANAGEMENT LTD	0	0	0	0	--

Institutional-manager reports, all 709 managers: 458,707 for, 151 abstained, 19,542 not voted, 98,919,555 1 year, 574,983 3 year, 61,634 2 year, 8,094 unknown. Showing the 25 largest; see all in the interactive database.

16. 4. Appointment of Grant Thornton LLP as the Company's independent auditor for the fiscal year ending December 31, 2026

Official resultAUDIT-RELATEDReported outcome: Approved

Combines 8 wordings of this item as funds reported it.

99.5% Approved · of votes cast

FOR 99.5%

FOR: 263,223,128AGAINST: 1,308,991

Details: description as filed, official tally, votes by 185 asset managers

Description as filed by funds: To ratify the appointment of Grant Thornton LLP as the Company's independent auditor for the fiscal year ending December 31, 2026.

Diamondback Energy, Inc.’s own tally for this item (“4. Appointment of Grant Thornton LLP as the Company's independent auditor for the fiscal year ending December 31, 2026”): 263,223,128 for, 1,308,991 against — passed, per its Form 8-K filed May 20, 2026 (Item 5.07).

Reported outcome: Approved, in the filing’s own words: “Proposal 4 The appointment of Grant Thornton LLP as the Company's independent auditor for the fiscal year ending December 31, 2026 was ratified.”
Support: 99.5% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 185 asset managers below reported 99,650,331 for, 6,993 against, 8,253 abstained, 196 not voted.

FOR

FOR: 99,650,331AGAINST: 6,993ABSTAIN: 8,253NOT VOTED: 196

Largest asset managers voting on “To ratify the appointment of Grant Thornton LLP as the Company's independent auditor for the fiscal year endin” at Diamondback Energy, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	31,357,169	12	1	For
Invesco	10,006,781	0	0	For
Fidelity	8,291,779	0	0	For
BlackRock	8,058,991	0	0	For
State Street	5,769,851	26	0	For
Capital Group	3,252,814	0	0	For
INVESTMENT CO OF AMERICA	2,929,232	0	0	For
John Hancock	2,796,296	0	0	For
JPMorgan	2,779,390	0	0	For
Pacer Funds Trust	1,900,412	0	0	For
Victory Capital	1,760,718	0	0	For
Hartford	1,359,104	0	0	For
Charles Schwab	1,246,356	0	0	For
Dimensional	1,153,034	0	0	For
MFS	1,098,822	0	0	For
BNY Mellon	998,561	0	0	For
Bridge Builder Trust	951,721	0	0	For
DIAMOND HILL FUNDS	892,808	0	0	For
Smead Funds Trust	884,621	0	0	For
T. Rowe Price	874,699	0	0	For
Jackson National	862,046	0	0	For
AMG FUNDS	850,000	0	0	For
American Century	779,789	0	0	For
First Trust	649,130	0	0	For
TIAA	590,192	0	0	For

Showing the 25 largest of 185 asset managers. See all 185 in the interactive database.

Not shown here: this season’s fund filings also report 1 item from the meeting of May 21, 2025, which belongs to the 2024-2025 season. A meeting outside this season’s July 1 to June 30 window is not counted in this page’s items or in its totals of asset managers and fund votes.

Largest Diamondback Energy, Inc. shareholders voting in 2025-2026

Ranked separately for each type of Form N-PX report. An institutional manager can report shares that a fund it advises also reports, so the two tables can list the same shares and are never added together. Each is ranked by the shares voted on the item that the most managers of that type reported, shown as a share of the 281,311,730 shares outstanding at the time of that meeting.

Fund voting reports: top Diamondback Energy, Inc. shareholders by shares voted on “TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS.”, 2025-2026
#	Asset manager	% of shares outstanding
1	Vanguard	11.15%
2	Invesco	3.56%
3	Fidelity	2.95%
4	BlackRock	2.86%
5	State Street	2.05%
6	Capital Group	1.16%
7	INVESTMENT CO OF AMERICA	1.04%
8	John Hancock	0.99%
9	JPMorgan	0.99%
10	Pacer Funds Trust	0.68%

Institutional-manager reports: top Diamondback Energy, Inc. shareholders by shares voted on “TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS.”, 2025-2026
#	Asset manager	% of shares outstanding
1	Wellington	4.30%
2	Invesco	3.81%
3	BlackRock	2.49%
4	Fidelity	1.99%
5	GEODE CAPITAL MANAGEMENT, LLC	1.89%
6	Boston Partners	1.58%
7	T. Rowe Price	1.29%
8	State Street	1.19%
9	Capital Group	1.17%
10	Capital Research Global Investors	1.09%

Reported Diamondback Energy, Inc. holdings and ownership

As disclosed to the SEC in Form 13F (quarter-end holdings of 30 large managers), Schedules 13D and 13G (beneficial ownership above 5%) and the company’s own proxy statement (DEF 14A). Each row names its form.

Diamondback Energy, Inc. holdings and ownership disclosed for the 2025-2026 proxy season
Holder	% outstanding	Disclosure
Diamondback Energy, Inc.	51.89%	13D
SGF FANG Holdings, LP	23.09%	13D
Vanguard Group	8.18%	13F
BlackRock	6.58%	13F
Wellington Management	4.44%	13F
State Street	4.28%	13F
JPMorgan Chase	2.23%	13F
FMR (Fidelity)	1.73%	13F
Invesco	1.63%	13F
BNY Mellon	1.40%	13F

Percentages above are of 281,311,730 shares outstanding, as reported by Diamondback Energy, Inc. on its Form 10-Q dated March 31, 2026 (see the filing on EDGAR). This is the count contemporaneous with the 2025-2026 meeting, not today’s. Each holding is as of its own filing, which may be dated before or after the meeting.

About this page

Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered funds disclose how they voted every proxy and institutional managers disclose their votes on executive pay (say-on-pay, say-on-frequency and golden parachutes), and Form 8-K Item 5.07, in which the company reports its own meeting results. Shares outstanding are taken from Diamondback Energy, Inc.’s 10-Q dated March 31, 2026. This page is a static snapshot rebuilt weekly on October 14, 2026; a live search always shows the current data.

At Diamondback Energy, Inc.'s shareholder meeting held May 20, 2026, in the 2025-2026 proxy season, 910 asset managers reported how they voted in their SEC Form N-PX filings, covering 17,101 separate fund positions. Their filings are grouped here into 16 reported items; because filers word the same ballot item differently, that can be more than the number of items on the ballot. On the most widely held item on that ballot — TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS. — Diamondback Energy, Inc.'s filing reports the proposal as approved, with 99% support of the votes cast (FOR divided by FOR plus AGAINST, the conventional basis for proxy support; abstentions, broker non-votes and unvoted shares are excluded because none of them took a side). Source: Diamondback Energy, Inc.'s Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on May 20, 2026.

Diamondback Energy, Inc. proxy season coverage: 2023-2024 · 2024-2025 · 2025-2026 (this page).

Download data (CSV): ballot items · votes by manager · column guide.