Security key
G7945M107
- Security type / class
- Equity / COM
- Total 13F shares
- 238,433,189
- Total 13F value
- $11,408,807,621
- Share change
- -16,821,819
- Put/Call ratio
- 163%
- SEC-reported price per share
- $47.89
- Number of holders
- 556
- Value change
- -$736,016,009
- Number of buys
- 241
- Number of sells
- 293
Open additional details 1 more signal available
Report period
Q1 2019
Institutions
556
Top holders
10
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
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
0/15
Latest evidence
31 Dec 2018
13F
Highest disclosed value: $1,229,432,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC has the largest disclosed position value at $1.23B.
0 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 GROUP INC's linked filing trail.
Disclosed position value
Top 5
VANGUARD GROUP INC
$1.23B
ValueAct Holdings, L.P.
$1.05B
Clearbridge Investments, LLC
$999.83M
FMR LLC
$912.9M
BlackRock Finance, Inc.
$753.04M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$1,229,432,000
31,858,787 shares
|
— | 31 Dec 2018 |
| ValueAct Holdings, L.P. |
13F
Company
|
—
class O/S missing
|
$1,053,320,000
27,295,160 shares
|
— | 31 Dec 2018 |
| Clearbridge Investments, LLC |
13F
Company
|
—
class O/S missing
|
$999,832,000
25,909,101 shares
|
— | 31 Dec 2018 |
| FMR LLC |
13F
Company
|
—
class O/S missing
|
$912,904,000
23,656,497 shares
|
— | 31 Dec 2018 |
| BlackRock Finance, Inc. |
13F
Company
|
—
class O/S missing
|
$753,044,000
19,513,940 shares
|
— | 31 Dec 2018 |
| STATE STREET CORP |
13F
Company
|
—
class O/S missing
|
$412,521,000
10,519,870 shares
|
— | 31 Dec 2018 |
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 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
556
Shares
238,433,189
Rows available
556
| 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 2019 vs Q1 2019 Across Filers
Q1 2019 holders
556
Q1 2019 holders
556
Holder diff
0
| Investor | Q1 2019 Shares | Q1 2019 Shares | Share Diff | Share Chg % | Q1 2019 value | Q1 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend