Greedy Insider
STX Insider Trades and Greediness Scores
Seagate Technology Holdings plc (STX) insider trades: since Dec 1, 2025, Greedy Insider recorded 0 open-market buys and 691 sales on Form 4 from 11 insiders. The strongest recent filing scored 91 (Strong).
Who bought and who sold
Across the last 691 scoreable Form 4 transactions in STX, 0 were open-market purchases and 691 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| MOSLEY WILLIAM D | CEO | Sell | 601.0 | 544760.3 | 2026-10-01 | 68 | View |
| MOSLEY WILLIAM D | CEO | Sell | 640.0 | 593853.6 | 2026-10-01 | 69 | View |
| MOSLEY WILLIAM D | CEO | Sell | 1027.0 | 933109.7 | 2026-10-01 | 72 | View |
| MOSLEY WILLIAM D | CEO | Sell | 307.0 | 279322.22 | 2026-10-01 | 63 | View |
| MOSLEY WILLIAM D | CEO | Sell | 840.0 | 764982.4 | 2026-10-01 | 71 | View |
| MOSLEY WILLIAM D | CEO | Sell | 960.0 | 878407.94 | 2026-10-01 | 72 | View |
| MOSLEY WILLIAM D | CEO | Sell | 480.0 | 439725.97 | 2026-10-01 | 67 | View |
| MOSLEY WILLIAM D | CEO | Sell | 400.0 | 366888.8 | 2026-10-01 | 65 | View |
| MOSLEY WILLIAM D | CEO | Sell | 920.0 | 845012.8 | 2026-10-01 | 71 | View |
| MOSLEY WILLIAM D | CEO | Sell | 840.0 | 772428.4 | 2026-10-01 | 71 | View |
The strongest recent filing
Romano Gianluca (EVP & CFO) sold 4,900 shares of Seagate Technology Holdings plc on Aug 21, 2026, a filing that scored 91 (Strong). It scored Strong because a senior insider was trading and it was direct personal ownership. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 5 insiders (Lee James CI, Teh Ban Seng, Romano Gianluca, Morris John Christopher) traded STX the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with Seagate Technology Holdings plc's own history
Open-market buys make up 0% of the 691 scoreable STX transactions on record between Dec 1, 2025 and Oct 1, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 691
- Open-market buys: 0
- Sales: 691
- Distinct insiders: 11
- Strongest recent Greediness Score: 91 (Strong)
Primary sources
Related
- Strongest filing
- STX in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.