Security record · archived quarter
STX
Seagate Technology Holdings plc · Technology · Computer Hardware
25Tracked holders
+2Δ holders
121.83MShares held
$24.68BReported value
+2New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +8.7% ·
share flow -17.8% ·
net new positions +4.0%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 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 · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 28.14M | +1.6% | $6.64B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 28.14M | +1.6% | $6.64B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 28.14M | +1.6% | $6.64B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 28.14M | +1.6% | $6.64B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 28.14M | +1.6% | $6.64B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 6 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 7 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 8 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 9 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 10 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 11 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 12 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 13 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 14 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 15 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 16 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 17 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 18 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 19 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 20 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 21 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 22 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 23 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 24 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 25 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 26 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 27 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 28 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 29 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 30 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 31 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 32 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 33 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 34 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 45 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 46 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 47 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 48 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 49 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 50 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 51 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 52 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 53 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 54 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 55 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 56 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 57 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 59 | JPMorgan Chase ✦ | 27.87M | — | $6.58B | 0.2% | n/c | 1 | SEC ↗ |
| 60 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 61 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 62 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 63 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 64 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 65 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 66 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 67 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 68 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 69 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 70 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 71 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 72 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 73 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 74 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 75 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 76 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 77 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 78 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 79 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 80 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 81 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 82 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 83 | BlackRock ✦ (passive) | 14.40M | +3.6% | $3.40B | 0.1% | ▲ Add | 2 | SEC ↗ |
| 84 | State Street Global Advisors ✦ (passive) | 9.28M | +3.0% | $2.20B | 0.1% | ▲ Add | 4 | SEC ↗ |
| 85 | State Street Global Advisors ✦ (passive) | 9.28M | +3.0% | $2.20B | 0.1% | ▲ Add | 4 | SEC ↗ |
| 86 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 87 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 88 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 89 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 90 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 91 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 92 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 93 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 94 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 95 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 96 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 97 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 98 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 99 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
| 100 | Morgan Stanley ✦ | 5.06M | — | $1.19B | 0.1% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Norges Bank | $197.03M | 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: Q3 2025 ·
Methodology ·
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