Simplex Trading, LLC

SEC CIK: 0001488542
Latest filing: Aug 12, 2026

SEC filings (opens in a new tab)

CSGP holding history

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

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

Shares (Q2 2025): 0; Sold out in Q2 2025
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q3 2023

Holdings of CSGP by Simplex Trading, LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2025	0	$0	0.0%	−25,214−100.0%	Sold out	Holders
Q1 2025	25,214	$2.00M	0.1%	+25,214	New	Holders
Q4 2023	0	$0	0.0%	−3,568−100.0%	Sold out	Holders
Q3 2023	3,568	$274.0K	<0.1%	+3,568	New	Holders