Seagate Technology Holdings plc - Common Stock (STX)

CUSIP: G7997R103

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class
Equity / Common Stock
Total 13F shares
186,671,167
Total 13F value
$72,781,433,324
Holder snapshot 6 visible 7 signals
Share change
-3,579,561
Put/Call ratio
241%
SEC-reported price per share
$391.76
Number of holders
1,433
Value change
-$971,265,778
Number of buys
760
Open additional details 1 more signal available
Number of sells
586
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
218,166,070

Security key

G7997R103

Report period

Q1 2026

Institutions

1,433

Top holders

10

STX full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 Seagate Technology Holdings plc SEC filings Seagate Technology Holdings plc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of STX - Seagate Technology Holdings plc - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G 13F 3/4/5 Lead comparable stake: 7.5% 13D/G row: VANGUARD CAPITAL MANAGEMENT LLC Showing 1-6 of 15 holder rows.

Quick read

VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership Top 5
VANGUARD CAPITAL MANAGEMENT LLC 7.5%
BlackRock, Inc. 6.1%
Sanders Capital, LLC 6%
VANGUARD PORTFOLIO MANAGEMENT LLC 5.1%
JPMORGAN CHASE & CO 4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD CAPITAL MANAGEMENT LLC
13D/G
Vanguard Capital Management
13D/G
7.5%
$6,393,061,707
16,318,822 shares
 $0 31 Mar 2026
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
6.1%
from 13D/G
$4,438,440,190
16,116,926 shares
 — 31 Dec 2025
Sanders Capital, LLC
13D/G 13F
Company
13D/G 13F
6%
$5,106,700,638
13,035,275 shares
 -$2,298,601,850 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G
Vanguard Portfolio Management
13D/G
5.1%
$4,346,541,158
11,094,908 shares
 $0 31 Mar 2026
JPMORGAN CHASE & CO
13D/G 13F
Company
13D/G 13F
4%
$2,043,010,541
8,654,624 shares
 -$783,578,980 31 Oct 2025
Capital Research Global Investors
13F 13D/G
Company
13F 13D/G
3.4%
from 13D/G
$1,242,556,651
4,511,989 shares
 — 31 Dec 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
1,433
Shares
186,671,167
Rows available
1,433
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
1,257
Q1 2026 holders
1,433
Holder diff
176
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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