CSS LLC

SEC CIK: 0001103646
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MKTX holding history

Marketaxess Holdings Inc 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.

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

Shares (Q2 2026): 5,030
Value: $570.9K
% of portfolio: <0.1%
Quarters held: 2; Since Q4 2025

Holdings of MKTX by CSS LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	5,030	$570.9K	<0.1%	+5,030	New	Holders
Q1 2026	0	$0	0.0%	−1,120−100.0%	Sold out	Holders
Q4 2025	1,120	$203.0K	<0.1%	+1,120	New	Holders