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SEAGATE TECHNOLOGY HLDNGS PL (STX)

Name: SEAGATE TECHNOLOGY HLDNGS PL (STX) — Institutional ownership, SEC filings and insider activity
Creator: Sightfile
License: https://www.sec.gov/privacy#dissemination

Institutional ownership, SEC filings and insider activity

Sector: Technology · SEC CIK 0001137789 · EDGAR filings · Updated 2026-07-28

SEAGATE TECHNOLOGY HLDNGS PL (STX) has reported institutional ownership of 0.3%, with 1,441 institutional managers holding positions valued at $72.1B per the latest 13F reporting period. SEC filings include an active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), triggering event that accelerates or increases a direct financial obligation (8-K Item 2.04).

Institutional ownership

0.3%

Institutional managers

1,441

Reported 13F value

$72.1B

Insider activity

400 trans.

−$157.3M net selling

Data flags

2 active

from SEC filings

Filings this week (3)

2026-07-28 — Current report (8-K) filed
2026-07-24 — Insider transaction reported (Form 4)
2026-07-23 — Notice of proposed sale filed (Form 144)

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

2026-07-02 — Insider transaction reported (Form 4)
2026-07-02 — Insider transaction reported (Form 4)
2026-06-15 — Insider transaction reported (Form 4)
2026-06-15 — Insider transaction reported (Form 4)
2026-06-15 — Insider transaction reported (Form 4)
2026-06-15 — Insider transaction reported (Form 4)
2026-06-15 — Insider transaction reported (Form 4)
2026-06-12 — Notice of proposed sale filed (Form 144)

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, SEAGATE TECHNOLOGY HLDNGS PL has 1,441 institutional holders and institutional ownership of 0.3%.

#	Institution	Reported value	% of tracked total
1	BlackRock, Inc.	$5.59B	7.8%
2	VANGUARD CAPITAL MANAGEMENT LLC	$5.55B	7.7%
3	Sanders Capital, LLC	$5.05B	7.0%
4	VANGUARD PORTFOLIO MANAGEMENT LLC	$4.35B	6.0%
5	STATE STREET CORP	$3.66B	5.1%
6	FMR LLC	$3.20B	4.4%
7	JPMORGAN CHASE & CO	$2.41B	3.3%
8	Capital Research Global Investors	$2.25B	3.1%
9	GEODE CAPITAL MANAGEMENT, LLC	$1.98B	2.7%
10	MORGAN STANLEY	$1.86B	2.6%

Full holder history and quarter-over-quarter changes are available inside the app.

Insider activity

Insiders reported 400 transactions (0 buys, 213 sells) across 17 reporting insiders, with a net reported value of −$157.3M.

Quarterly net insider value, as reported in Form 4 filings.

Data flags from SEC filings

Active triggering event that accelerates or increases a direct financial obligation (8-K Item 2.04), most recently filed 2025-06-16 (recurring since 2025-06-16) — source filing. The authoritative details are those stated in the filing itself.

Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2021-05-19 (recurring since 2021-05-19) — source filing. The authoritative details are those stated in the filing itself.

Fails-to-deliver

The SEC's fails-to-deliver file for 2026-06-29 reports 100 failed-to-deliver shares ($1.81M) for STX — an official data point published by the SEC, shown as reported.

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APPLOVIN CORP (APP) · VERTIV HLDGS CO CLASS A (VRT) · ADOBE INC (ADBE) · SANDISK CORP (SNDK) · AUTOMATIC DATA PROCESSING IN (ADP) · MARVELL TECHNOLOGY INC (MRVL)

See full history, cross-references and alerts on Sightfile

Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-28.