Company · Ownership research

Matador Resources Co MTDR

CIK 0001520006 · CUSIP 576485205

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 576485205 (MTDR), not CUSIP 576485905 (MTDR), CUSIP 576485955 (MTDR), and does not merge CUSIPs.

This page lists the top 20 of 440 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$626.49M 14,761,769 shares	0.01%	-19.12K(-0.10%)Reduced	SEC filing ↗ Jan 29, 2026	▾
02	BlackRock, Inc. CIK 2012383 · View history	$458.40M 10,801,224 shares	0.01%	+321.14K(+3.10%)Added	SEC filing ↗ Feb 12, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$283.09M 6,670,265 shares	0.06%	+258.75K(+4.00%)Added	SEC filing ↗ Feb 12, 2026	▾
04	STATE STREET CORP CIK 93751 · View history	$195.98M 4,617,864 shares	0.01%	+86.34K(+1.90%)Added	SEC filing ↗ Feb 13, 2026	▾
05	LSV ASSET MANAGEMENT CIK 1050470 · View history	$163.06M 3,842,011 shares	0.36%	+309.71K(+8.80%)Added	SEC filing ↗ Feb 6, 2026	▾
06	T. Rowe Price Investment Management, Inc. CIK 1897612 · Amended · View history	$147.06M 3,465,227 shares	0.09%	-222.35K(-6.00%)Reduced	SEC filing ↗ Feb 19, 2026	▾
07	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$144.56M 3,406,182 shares	0.03%	+1.34M(+65.00%)Added	SEC filing ↗ Feb 17, 2026	▾
08	ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history	$142.85M 3,365,997 shares	0.22%	+385.00K(+12.90%)Added	SEC filing ↗ Feb 17, 2026	▾
09	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$109.44M 2,578,774 shares	0.03%	+62.70K(+2.50%)Added	SEC filing ↗ Feb 17, 2026	▾
10	MORGAN STANLEY CIK 895421 · Amended · View history	$99.80M 2,351,669 shares	0.01%	-497.18K(-17.50%)Reduced	SEC filing ↗ May 27, 2026	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$94.94M 2,236,457 shares	0.01%	+18.73K(+0.80%)Added	SEC filing ↗ Feb 9, 2026	▾
12	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$77.01M 1,814,467 shares	0.04%	+913.91K(+101.50%)Added	SEC filing ↗ Feb 13, 2026	▾
13	Clearbridge Investments, LLC CIK 1348883 · View history	$75.45M 1,777,883 shares	0.06%	+5.53K(+0.30%)Added	SEC filing ↗ Feb 11, 2026	▾
14	GW&K Investment Management, LLC CIK 1082917 · View history	$66.70M 1,571,528 shares	0.58%	+5.18K(+0.30%)Added	SEC filing ↗ Feb 11, 2026	▾
15	SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history	$64.50M 1,519,720 shares	0.44%	-543.40K(-26.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
16	BECK MACK & OLIVER LLC CIK 10742 · View history	$60.79M 1,432,324 shares	1.10%	+28.25K(+2.00%)Added	SEC filing ↗ Feb 12, 2026	▾
17	Copeland Capital Management, LLC CIK 1541743 · View history	$60.54M 1,426,505 shares	1.35%	+233.42K(+19.60%)Added	SEC filing ↗ Jan 29, 2026	▾
18	CIBC Private Wealth Group LLC CIK 1298088 · View history	$57.60M 1,357,127 shares	0.10%	+461(0.00%)Added	SEC filing ↗ Feb 12, 2026	▾
19	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$54.32M 1,280,018 shares	0.04%	+432.42K(+51.00%)Added	SEC filing ↗ Feb 17, 2026	▾
20	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$53.90M 1,270,011 shares	0.02%	+62.66K(+5.20%)Added	SEC filing ↗ Jan 22, 2026	▾

Showing 20 / 440 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

440

Cancelled or null records excluded

Disclosed shares

113,803,900

Not deduplicated across managers

Disclosed value

$4.83B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Matador Resources Co · Q4 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.