Security record · archived quarter
STX
Seagate Technology Holdings plc · Technology · Computer Hardware
21Tracked holders
+2Δ holders
112.89MShares held
$10.24BReported value
+3New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +10.5% ·
share flow +30.0% ·
net new positions +9.5%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 180 | +7 | 150.92M | $145.24B | +10 | −2 |
| Q1 2026 | 175 | +8 | 161.32M | $60.73B | +9 | −2 |
| Q4 2025 | 167 | -1 | 286.32M | $48.08B | +1 | −1 |
| Q3 2025 | 25 | +2 | 121.83M | $24.68B | +2 | −1 |
| Q2 2025 | 21 | +2 | 112.89M | $10.24B | +3 | −1 |
| Q1 2025 | 16 | -3 | 19.10M | $1.63B | — | −3 |
| Q4 2024 | 19 | 0 | 51.85M | $2.10B | +2 | −2 |
| Q3 2024 | 18 | +4 | 61.19M | $1.84B | +4 | — |
| Q2 2024 | 14 | — | 13.27M | $1.37B | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 27.70M | — | $4.00B | 0.1% | n/c | 1 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 27.70M | — | $4.00B | 0.1% | n/c | 1 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 27.70M | — | $4.00B | 0.1% | n/c | 1 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 27.70M | — | $4.00B | 0.1% | n/c | 1 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 27.70M | — | $4.00B | 0.1% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 27 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 28 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 29 | BlackRock ✦ (passive) | 13.90M | — | $2.01B | 0.0% | n/c | 1 | SEC ↗ |
| 30 | State Street Global Advisors ✦ (passive) | 9.00M | +5.0% | $1.31B | 0.0% | ▲ Add | 3 | SEC ↗ |
| 31 | State Street Global Advisors ✦ (passive) | 9.00M | +5.0% | $1.31B | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 33 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 37 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 38 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 39 | Fidelity (FMR) ✦ | 6.41M | — | $925.66M | 0.1% | n/c | 1 | SEC ↗ |
| 40 | Geode Capital Management ✦ (passive) | 4.57M | +1.9% | $656.07M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 41 | Geode Capital Management ✦ (passive) | 4.57M | +1.9% | $656.07M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 42 | D. E. Shaw & Co. ✦ | 1.69M | +11566.8% | $243.69M | 0.3% | ▲ Add | 5 | SEC ↗ |
| 43 | D. E. Shaw & Co. ✦ | 1.69M | +11566.8% | $243.69M | 0.3% | ▲ Add | 5 | SEC ↗ |
| 44 | Norges Bank ✦ (passive) | 1.37M | +127.3% | $197.03M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 45 | Millennium Management ✦ | 43.25M | +6445.0% | $184.75M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 46 | Millennium Management ✦ | 43.25M | +6445.0% | $184.75M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 47 | PRIMECAP Management ✦ | 983.21K | +18.4% | $141.91M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 48 | Point72 Asset Management ✦ | 954.72K | -30.3% | $137.79M | 0.3% | ▼ Trim | 4 | SEC ↗ |
| 49 | Point72 Asset Management ✦ | 954.72K | -30.3% | $137.79M | 0.3% | ▼ Trim | 4 | SEC ↗ |
| 50 | T. Rowe Price ✦ | 703.65K | +127.4% | $101.56M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 51 | T. Rowe Price ✦ | 703.65K | +127.4% | $101.56M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 52 | Renaissance Technologies ✦ | 585.29K | +713.0% | $84.48M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 53 | Citadel Advisors ✦ | 516.04K | +118.5% | $74.48M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 54 | Citadel Advisors ✦ | 516.04K | +118.5% | $74.48M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 55 | Citadel Advisors ✦ | 516.04K | +118.5% | $74.48M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 56 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 57 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 58 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 59 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 60 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 61 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 62 | AQR Capital Management ✦ | 483.64K | -24.5% | $68.89M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 63 | Arrowstreet Capital ✦ | 251.56K | New | $36.31M | 0.0% | New | 1 | SEC ↗ |
| 64 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 65 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 66 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 67 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 68 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 69 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 70 | Wellington Management ✦ | 224.87K | -75.9% | $32.46M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 71 | Duquesne Family Office ✦ | 197.49K | -10.0% | $28.50M | 0.7% | ▼ Trim | 5 | SEC ↗ |
| 72 | Gotham Asset Management ✦ | 46.03K | -36.0% | $6.64M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 73 | Bridgewater Associates ✦ | 25.88K | New | $3.74M | 0.0% | New | 1 | SEC ↗ |
| 74 | Adage Capital Partners ✦ | 22.90K | New | $3.31M | 0.0% | New | 1 | SEC ↗ |
| 75 | Two Sigma Investments ✦ | 8.24K | -24.7% | $1.19M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 76 | Two Sigma Investments ✦ | 8.24K | -24.7% | $1.19M | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $36.31M | 0.0% |
| Bridgewater Associates | $3.74M | 0.0% |
| Adage Capital Partners | $3.31M | 0.0% |
Exited
| Marshall Wace | $7.09M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,440 holders, 178.17M shares, $68.20B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 21
MOSLEY WILLIAM D
Officer, Director · 3.44K sh · $2.92M
Aug 21
Morris John Christopher
Officer · 2.03K sh · $1.72M
Aug 21
Lee James CI
Officer · 668 sh · $567,157
Aug 21
Morris John Christopher
Officer · 608 sh · $516,832
Aug 21
MOSLEY WILLIAM D
Officer, Director · 11.31K sh · $9.60M
Aug 21
Lee James CI
Officer · 2.52K sh · $2.14M
Aug 21
MOSLEY WILLIAM D
Officer, Director · 3.39K sh · $2.88M
Aug 21
Romano Gianluca
Officer · 2.71K sh · $2.30M
Aug 21
Lee James CI
Officer · 755 sh · $641,263
Aug 21
Romano Gianluca
Officer · 4.90K sh · $4.16M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 05
SC 13G/A — Sanders Capital, LLC
Jul 31
SC 13G/A — VANGUARD PORTFOLIO MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2025 ·
Methodology ·
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