STX
Seagate Technology Holdings plc · Technology · Computer Hardware
Momentum inputs (comparable managers):
holder breadth +28.6% ·
share flow +30.0% ·
net new positions +20.0%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 178 | +7 | 149.79M | $144.19B | +10 | −4 |
| 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 | n/a | −3 |
| Q4 2024 | 19 | 0 | 51.85M | $2.10B | +2 | −2 |
| Q3 2024 | 18 | +4 | 61.19M | $1.84B | +4 | n/a |
| Q2 2024 | 14 | n/a | 13.27M | $1.37B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 4.16M | +8.3% | $454.48M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 2 | Arrowstreet Capital ✦ | 3.15M | -10.1% | $345.31M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 3 | Duquesne Family Office ✦ | 1.64M | -6.5% | $179.67M | 6.3% | ▼ Trim | 2 | SEC ↗ |
| 4 | Millennium Management ✦ | 45.93M | +4927.8% | $166.13M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 5 | Citadel Advisors ✦ | 1.35M | +67.1% | $147.63M | 0.2% | ▲ Add | 2 | SEC ↗ ×3 |
| 6 | Point72 Asset Management ✦ | 1.21M | New | $133.03M | 0.5% | New | 1 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 727.39K | +501.7% | $79.67M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 8 | Two Sigma Investments ✦ | 623.56K | +25.0% | $68.30M | 0.2% | ▲ Add | 2 | SEC ↗ ×2 |
| 9 | AQR Capital Management ✦ | 612.60K | +89.4% | $66.22M | 0.1% | ▲ Add | 2 | SEC ↗ ×5 |
| 10 | PRIMECAP Management ✦ | 601.42K | +3.3% | $65.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | T. Rowe Price ✦ | 518.43K | -25.9% | $56.78M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 12 | Glenview Capital ✦ | 402.77K | New | $44.12M | 0.9% | New | 1 | SEC ↗ |
| 13 | Norges Bank ✦ (passive) | 158.35K | +31.0% | $17.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Adage Capital Partners ✦ | 36.40K | New | $3.99M | 0.0% | New | 1 | SEC ↗ |
| 15 | Wellington Management ✦ | 29.02K | -10.4% | $3.18M | 0.0% | ▼ Trim | 2 | SEC ↗ ×9 |
| 16 | Gotham Asset Management ✦ | 25.74K | +6.0% | $2.82M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | D. E. Shaw & Co. ✦ | 8.90K | -81.2% | $974,488 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 18 | Fisher Asset Management ✦ | 2.92K | New | $320,101 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $133.03M | 0.5% |
| Glenview Capital | $44.12M | 0.9% |
| Adage Capital Partners | $3.99M | 0.0% |
| Fisher Asset Management | $320,101 | 0.0% |
Exited
| No tracked exits this quarter. |
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.
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)
Officer · 40 sh · $35,622
Officer · 160 sh · $138,897
Officer · 915 sh · $818,257
Officer · 974 sh · $852,590
Officer · 40 sh · $35,451
Officer · 40 sh · $36,083
Officer · 760 sh · $666,174
Officer · 80 sh · $71,782
Officer · 520 sh · $453,212
Officer · 986 sh · $862,261
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology