STX — SEAGATE TECHNOLOGY PLC

Ownership history in CSS LLC/IL · 12 quarters on record

This page tracks every 13F SEC filing in which CSS LLC/IL reported a position in SEAGATE TECHNOLOGY PLC (STX). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position

0.05% (2014 Q3)

Avg. % of fund

0.03%

First filed

2013 Q4

Last filed

2025 Q3

Quarters held

12

Quarter	Action	Shares	Change	Chg %	% of Fund	Mkt Value	Price (EOQ)
2025 Q3	REDUCED	2,442	-1,280	-34.4%	0.03%	$576K	$235.44
2025 Q1	ADDED	3,722	+222	+6.3%	0.02%	$316K	$84.02
2023 Q1	REDUCED	3,500	-4,000	-53.3%	0.02%	$231K	$61.15
2022 Q4	ADDED	7,500	+1,500	+25.0%	0.02%	$395K	$48.11

% of Fund (quarterly) STX price (monthly, adj. close)

Other funds also holding STX

As of 2025 Q4 — sorted by position size

Oxbow Capital Management (HK) Ltd 3Y 24.04% Central Asset Investments & Management Holdings (HK) Ltd 3Y 7Y 15.79% Atalan Capital Partners, LP 3Y 7Y 14.63% Amanah Holdings Trust 11.69% Aufman Associates Inc 3Y 9.25% CACTI ASSET MANAGEMENT LLC 3Y 7Y 9.01% Rivermont Capital Management LP 3Y 7.62% HIGHLAND PEAK CAPITAL, LLC 3Y 6.35% Twin Lakes Capital Management, LLC 3Y 6.34% Maple Rock Capital Partners Inc. 3Y 7Y 6.06%

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