CSS LLC

SEC CIK: 0001103646
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MTDR holding history

Matador Resources Co in every 13F filed by CSS LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MTDR overview All 13F holders of MTDR Full Q2 2026 holdings

Shares (Q2 2026): 71,602
Value: $3.56M
% of portfolio: 0.2%
Quarters held: 4; Since Q3 2025

Holdings of MTDR by CSS LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	71,602	$3.56M	0.2%	+36,401+103.4%	Added	Holders
Q1 2026	35,201	$2.22M	0.1%	+23,390+198.0%	Added	Holders
Q4 2025	11,811	$501.3K	<0.1%	+71+0.6%	Added	Holders
Q3 2025	11,740	$527.5K	<0.1%	+11,740	New	Holders