Security key
G7945M107
- Security type / class
- Equity / COM
- Total 13F shares
- 569,188
- Total 13F value
- $159,879,688
- Share change
- -285,584
- SEC-reported price per share
- $275.39
- Number of holders
- 7
- Value change
- -$67,306,699
- Number of buys
- 2
- Number of sells
- 4
Report period
Q4 2025
Institutions
7
Top holders
7
STX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Seagate Technology Holdings plc SEC filings
Seagate Technology Holdings plc company facts
Broader feeds
Reporting periods
Holder history for CUSIP G7945M107
Recent filing periods:
Ownership snapshot
Top reported holders of STX - SEAGATE TECHNOLOGIES - COM (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
BlackRock, Inc.
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
3/15
Latest evidence
30 Sep 2025
13F
13D/G
3/4/5
Lead comparable stake: 6.1%
12 rows are not safely comparable across share classes.
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 6.1%.
3 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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 3
BlackRock, Inc.
6.1%
JPMORGAN CHASE & CO
4%
Capital Research Global Investors
3.4%
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 |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
6.1%
Reported 13D/G
· 31 Mar 2025
|
$3,398,684,170
14,397,544 shares
|
— | 30 Sep 2025 |
| JPMORGAN CHASE & CO |
13F
13D/G
Company
|
4%
Reported 13D/G
· 31 Oct 2025
|
$3,288,976,193
13,932,796 shares
|
— | 30 Sep 2025 |
| Capital Research Global Investors |
13F
13D/G
Company
|
3.4%
Reported 13D/G
· 30 Jun 2025
|
$1,461,127,363
6,189,644 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$6,642,796,149
28,140,287 shares
|
— | 30 Sep 2025 |
| Sanders Capital, LLC |
13F
Company
|
—
denominator unverified
|
$4,140,791,252
17,541,266 shares
|
— | 30 Sep 2025 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$2,196,419,868
9,276,278 shares
|
— | 30 Sep 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 Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
7
Shares
569,188
Rows available
7
| 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 Q4 2025 vs Q2 2026 Across Filers
Q2 2026 holders
8
Q4 2025 holders
7
Holder diff
-1
| Investor | Q2 2026 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q2 2026 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend