Group One Trading, L.P.

SEC CIK: 0000932540
Latest filing: Aug 13, 2026

SEC filings (opens in a new tab)

MKL holding history

Markel Group Inc. in every 13F filed by Group One Trading, L.P., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q3 2023): 0; Sold out in Q3 2023
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q4 2022

Holdings of MKL by Group One Trading, L.P., by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q3 2023	0	$0	0.0%	−226−100.0%	Sold out	Holders
Q2 2023	226	$312.6K	<0.1%	−714−76.0%	Reduced	Holders
Q1 2023	940	$1.20M	0.1%	+830+754.5%	Added	Holders
Q4 2022	110	$144.9K	<0.1%	+110	New	Holders