SEAGATE TECHNOLOGY HLDNGS PL (STX) Institutional Ownership Changes & 13F Activity

SEAGATE TECHNOLOGY HLDNGS PL (STX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Citadel Advisors Llc, State Street Corp, Envestnet Asset Management Inc, Allianz Asset Management Gmbh, and Liontrust Investment Partners Llp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncBuy+93,200+30.5%398,344$384.40MQ2 2026Sep 23, 2026
Qrg Capital Management, Inc.Buy+2,826+15.5%21,081$20.34MQ2 2026Sep 23, 2026
Envestnet Portfolio Solutions, Inc.Buy+2,444+163.4%3,940$3.80MQ2 2026Sep 23, 2026
State Street CorpBuy+590,037+6.3%9,911,669$9.57BQ2 2026Sep 22, 2026
Andra Ap-FondenSell-3,760-11.5%28,927$27.91MQ2 2026Sep 22, 2026
Silicon Valley Capital PartnersBuy+517+1988.5%543$524.08KQ2 2026Sep 21, 2026
Manufacturers Life Insurance Company, TheBuy+6,010+5.0%126,359$121.94MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcSell-1,166-12.8%7,959$7.68MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+65+3.6%1,872$1.81MQ2 2026Sep 04, 2026
Citadel Advisors LlcBuy+644,750+582.2%755,495$729.05MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+76,843+33.8%304,216$293.57MQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcBuy+34+109.7%65$62.73KQ2 2026Aug 28, 2026
Corient Private Wealth LlcSell-10,805-29.8%25,430$24.54MQ2 2026Aug 27, 2026
Optimize Financial IncSell-27-0.3%7,916$7.64MQ2 2026Aug 27, 2026
Groupe La FrancaiseBuy+4,856—4,856$4.67MQ2 2026Aug 25, 2026
Financial Insights, Inc.Buy+732—732$706.38KQ2 2026Aug 25, 2026
California State Teachers Retirement SystemBuy+20,940+6.8%328,233$316.74MQ2 2026Aug 24, 2026
Cyber Hornet Etfs LlcBuy+11+1.8%609$587.68KQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Sell-498-6.4%7,321$7.06MQ2 2026Aug 21, 2026
Rehmann Capital Advisory GroupBuy+967—967$926.82KQ2 2026Aug 20, 2026
Clifford Swan Investment Counsel LlcSell-22-3.4%625$603.13KQ2 2026Aug 20, 2026
Cantor Fitzgerald, L. P.Buy+15,034—15,034$14.51MQ2 2026Aug 19, 2026
Mercer Global Advisors IncBuy+12,346+31.7%51,232$49.44MQ2 2026Aug 19, 2026
Spx Gestao De Recursos LtdaBuy+5,200—5,200$5.02MQ2 2026Aug 19, 2026
Archer Investment CorpBuy+580—580$559.70KQ2 2026Aug 19, 2026
Kingsview Wealth Management, LlcSell-536-19.5%2,213$2.14MQ2 2026Aug 19, 2026
Liontrust Investment Partners LlpSell-46,803-61.7%29,040$28.02MQ2 2026Aug 18, 2026
Ratan Capital Management LpBuy+3,750—3,750$3.62MQ2 2026Aug 18, 2026
Twin Lakes Capital Management, LlcSell-610-1.2%48,618$46.92MQ2 2026Aug 18, 2026
Beacon Pointe Advisors, LlcBuy+442+4.8%9,721$9.38MQ2 2026Aug 18, 2026
Showing 30 of 1,842

Frequently asked questions about STX activity

  • Which institutional owners are buying STX?

    Institutional owners buying STX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in STX activity?

    "Buy" means an investor increased their reported position in STX compared to the prior reporting period. This reflects growing exposure to SEAGATE TECHNOLOGY HLDNGS PL (STX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in STX increasing?

    Institutional interest in STX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.