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 497 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	BlackRock, Inc. CIK 2012383 · View history	$703.68M 11,137,651 shares	0.01%	+336.43K(+3.10%)Added	SEC filing ↗ May 13, 2026	▾
02	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$534.78M 8,464,400 shares	0.03%	—	SEC filing ↗ May 8, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$439.01M 6,948,104 shares	0.09%	+277.84K(+4.20%)Added	SEC filing ↗ May 7, 2026	▾
04	STATE STREET CORP CIK 93751 · View history	$324.34M 5,133,566 shares	0.01%	+515.70K(+11.20%)Added	SEC filing ↗ May 15, 2026	▾
05	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$320.41M 5,071,348 shares	0.01%	—	SEC filing ↗ May 15, 2026	▾
06	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$252.50M 3,996,501 shares	0.05%	+590.32K(+17.30%)Added	SEC filing ↗ May 15, 2026	▾
07	LSV ASSET MANAGEMENT CIK 1050470 · View history	$243.11M 3,847,931 shares	0.52%	+5.92K(+0.20%)Added	SEC filing ↗ May 11, 2026	▾
08	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$236.60M 3,744,792 shares	0.16%	+279.56K(+8.10%)Added	SEC filing ↗ May 15, 2026	▾
09	ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history	$191.81M 3,035,997 shares	0.30%	-330.00K(-9.80%)Reduced	SEC filing ↗ May 15, 2026	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$147.19M 2,329,020 shares	0.01%	+92.56K(+4.10%)Added	SEC filing ↗ May 15, 2026	▾
11	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$139.97M 2,215,459 shares	0.07%	+400.99K(+22.10%)Added	SEC filing ↗ May 15, 2026	▾
12	MORGAN STANLEY CIK 895421 · View history	$137.10M 2,169,940 shares	0.01%	-181.73K(-7.70%)Reduced	SEC filing ↗ May 15, 2026	▾
13	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$112.77M 2,657,208 shares	0.04%	+78.43K(+3.00%)Added	SEC filing ↗ May 15, 2026	▾
14	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$100.80M 1,595,415 shares	0.07%	+810.81K(+103.30%)Added	SEC filing ↗ May 13, 2026	▾
15	GW&K Investment Management, LLC CIK 1082917 · View history	$98.47M 1,558,564 shares	0.87%	-12.96K(-0.80%)Reduced	SEC filing ↗ May 13, 2026	▾
16	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$97.32M 1,540,332 shares	0.04%	+422.39K(+37.80%)Added	SEC filing ↗ May 15, 2026	▾
17	SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history	$88.39M 1,399,066 shares	0.64%	-120.65K(-7.90%)Reduced	SEC filing ↗ May 15, 2026	▾
18	CIBC Bancorp USA Inc. CIK 1711924 · View history	$86.33M 1,366,491 shares	0.12%	+1.37MNew	SEC filing ↗ May 12, 2026	▾
19	BECK MACK & OLIVER LLC CIK 10742 · View history	$85.83M 1,358,532 shares	1.77%	-73.79K(-5.20%)Reduced	SEC filing ↗ May 12, 2026	▾
20	NOMURA ASSET MANAGEMENT INTERNATIONAL INC. CIK 921739 · View history	$84.97M 1,344,877 shares	0.15%	+338.68K(+33.70%)Added	SEC filing ↗ May 15, 2026	▾

Showing 20 / 497 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

497

Cancelled or null records excluded

Disclosed shares

117,076,383

Not deduplicated across managers

Disclosed value

$7.34B

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 · Q1 2026

Explore all 497 reporting institutions.

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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.