Seagate Technology Holdings plc
Held by 16 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide G7997R103 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide
In plain English: 16 of the investors we track own this stock. In the latest quarter, 13 of them bought more of it and 3 sold some or all of theirs (3 bought it for the first time). That tells you what they did last quarter — not what the stock will do next.
Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer
Managers holding
16
+2 vs last quarter (like-for-like)
Total value held
$9.58B
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
1.1%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
+$4.97B
+307.0% vs last quarter
Net shares bought
+2.7M
Est. net flow +$2.91B
Quarter activity
13 bought · 3 sold
3 new · 1 sold out
Tracked capital in this stock
Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).
Aggregate buying and selling
Net share change reported each quarter
Who owns STX?
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Who owns STX? — Q2 2026
Holders ranked by position size, with each one's quarter-over-quarter change.
Column filters
| # | Manager | Fund | Shares | Value ↓ | % of their portfolio | QoQ | Δ shares | Δ shares % | Est. Δ value ⓘChange in shares × this quarter's price |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Norges Bank | Norges Bank Investment Management | 3.10M | $2.99B | 0.3% | — | — | — | — |
| 2 | David Shaw | D.E. Shaw & Co. | 1.35M | $1.31B | 0.8% | Added | +64.8K | +5.0% | +$62.54M |
| 3 | Stephen Mandel | Lone Pine Capital | 1.00M | $965.11M | 5.9% | New | +1.0M | — | +$965.11M |
| 4 | Steve Cohen | Point72 Asset Management | 822.91K | $794.11M | 1.2% | Added | +276.5K | +50.6% | +$266.86M |
| 5 | Ken Griffin | Citadel Advisors | 755.50K | $729.05M | 0.4% | Added | +644.8K | +582.2% | +$622.18M |
| 6 | Sands Capital | Sands Capital Management | 720.74K | $695.52M | 2.6% | Added | +188.8K | +35.5% | +$182.24M |
| 7 | Israel Englander | Millennium Management | 633.07K | $610.91M | 0.4% | Added | +382.8K | +152.9% | +$369.39M |
| 8 | Jim Simons | Renaissance Technologies | 457.35K | $441.35M | 0.6% | Added | +146.9K | +47.3% | +$141.72M |
| 9 | Two Sigma | Two Sigma Investments | 354.82K | $342.40M | 0.3% | Added | +252.3K | +246.1% | +$243.46M |
| 10 | Chase Coleman | Tiger Global Management | 285.10K | $275.12M | 1.1% | New | +285.1K | — | +$275.12M |
| 11 | Ray Dalio | Bridgewater Associates | 199.82K | $192.83M | 0.8% | Reduced | -129.3K | -39.3% | -$124.77M |
| 12 | Stanley Druckenmiller | Duquesne Family Office | 122.00K | $117.73M | 2.7% | Added | +71.3K | +140.6% | +$68.80M |
| 13 | Fred Alger | Fred Alger Management | 108.46K | $104.66M | 0.3% | Added | +45.9K | +73.4% | +$44.30M |
| 14 | Boston Partners | Boston Partners Global Investors | 12.48K | $12.04M | 0.0% | Reduced | -617 | -4.7% | -$595.32K |
| 15 | Ken Fisher | Fisher Asset Management | 1.21K | $1.17M | 0.0% | Added | +255 | +26.6% | +$246.09K |
| 16 | Baillie Gifford | Baillie Gifford & Co | 40 | $38.60K | 0.0% | New | +40 | — | +$38.60K |
Column filters
| Manager | Fund | Shares sold | Value last quarter ↓ |
|---|---|---|---|
| Soroban Capital | Soroban Capital Partners | -534.4K | $209.34M |
Politician trades
Column filters
| Politician | Date | Ticker | Asset | Type | Reported range ⓘThe dollar range the politician reported. Exact amounts are not disclosed. | Est. size ⓘOur estimate only: the midpoint of the reported range. | Owner | Account ⓘSubholding Of: the account the trade was in, as named on the report (e.g. an IRA or a brokerage account). The same stock bought on the same day in different accounts is a separate trade in each account. | Filed ↓ | Filing delay ⓘDays between the trade and the report. Over 45 days is late under the STOCK Act. | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Kevin Hern Politician | Oct 23, 2026 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $15,001 - $50,000 | Est. $32,500 (midpoint of reported range $15,001–$50,000) | Self | Kevin Hern Traditional IRA | Oct 28, 2026 | 5 days | PTR ↗ |
| Lisa McClain Politician | Sep 30, 2026 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $15,001 - $50,000 | Est. $32,500 (midpoint of reported range $15,001–$50,000) | Spouse | Charles Schwab 401K (Hantz) > Schwab 824 | Oct 12, 2026 | 12 days | PTR ↗ |
| Kevin Hern Politician | Sep 15, 2026 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | — | Sep 25, 2026 | 10 days | PTR ↗ |
| Julie Johnson Politician | Dec 18, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | Chase Brokerage Account (3935) | Jan 15, 2026 | 28 days | PTR ↗ |
| Julie Johnson Politician | Nov 13, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | — | Dec 11, 2025 | 28 days | PTR ↗ |
| Kevin Hern Politician | Oct 28, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $15,001 - $50,000 | Est. $32,500 (midpoint of reported range $15,001–$50,000) | Self | Kevin Hern Traditional IRA | Nov 16, 2025 | 19 days | PTR ↗ |
| Kevin Hern Politician | Oct 6, 2025 | STX | Seagate Technology Holdings PLC - | Sale (partial) | $15,001 - $50,000 | Est. $32,500 (midpoint of reported range $15,001–$50,000) | Self | — | Nov 16, 2025 | 41 days | PTR ↗ |
| Lisa McClain Politician | Sep 8, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Purchase | $15,001 - $50,000 | Est. $32,500 (midpoint of reported range $15,001–$50,000) | Spouse | Charles Schwab 401K > Schwab 824 | Oct 22, 2025 | 44 days | PTR ↗ |
| Julie Johnson Politician | Aug 14, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | Chase Brokerage Account (3935) | Sep 11, 2025 | 28 days | PTR ↗ |
| Julie Johnson Politician | Jul 29, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Joint | Chase Brokerage Account (3935) | Aug 14, 2025 | 16 days | PTR ↗ |
| Robert P. Bresnahan, Jr. Politician | Apr 8, 2025 | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | JP Morgan Brokerage Account | May 8, 2025 | 30 days | PTR ↗ |