Back to STX researchManagerReported valueSharesFiling period UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME$601M1.53M2026-03-31Arrowstreet Capital, Limited Partnership$562M1.43M2026-03-31Dimensional Fund Advisors LP$327M836K2026-03-31Swiss National Bank$250M639K2026-03-31Principal Financial Group Inc$241M249K2026-06-30Point72 Asset Management$214M546K2026-03-31Sumitomo Mitsui Trust Group, Inc.$205M522K2026-03-31Mitsubishi UFJ Asset Management Co., Ltd.$203M518K2026-03-31Viking Global Investors$197M3.19M2023-06-30HSBC Holdings PLC$148M379K2026-03-31Bridgewater Associates$129M329K2026-03-31Legal & General Group Plc$106M1.60M2023-09-30American Century Companies Inc$12.3M31.39K2026-03-31Duquesne Family Office$19.9K50.70K2026-03-31
Institutional ownership
STX in reported 13F portfolios
Reported long holdings only · filing data can be delayed up to 45 days after quarter-end.Managers14
Reported value$3.2B
Latest periodJun 2026
Frequently asked questions
Who owns STX?
14 managers currently show reported long STX positions in Insider Deck’s 13F sample, totaling about $3.2B.
How fresh is STX ownership data?
13F filings are quarterly and can lag quarter-end by up to 45 days. Positions appear after SEC tables are processed and CUSIPs resolve to tickers.