Ban Seng Teh is CCO & VP at Seagate Technology plc (STX). They have made 11 open-market trades across 1 company since 2020, most recently 2026-09-15.
CIK 0001801425
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| STX | 5,810 | $3.7M |
Shares reported on the most recent Form 4, priced at the 2026-09-16 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| STX | SELL · 10b5-1 | 2026-09-15 | 2026-09-16 | $782.08 | $41.2M | +14.7% | -20.4% | — |
| STX | SELL · 10b5-1 | 2026-09-14 | 2026-09-15 | $779.00 | $770K | +16.8% | -12.0% | — |
| STX | SELL · 10b5-1 | 2026-09-10 | 2026-09-11 | $860.09 | $570K | +18.8% | -3.2% | — |
| STX | SELL · 10b5-1 | 2026-08-21 | 2026-08-24 | $852.97 | $8.4M | -1.3% | +14.3% | — |
| STX | SELL · 10b5-1 | 2026-08-20 | 2026-08-24 | $842.97 | $5.1M | -1.3% | +14.3% | — |
| STX | SELL | 2026-08-13 | 2026-08-14 | $920.80 | $6.8M | -14.5% | -18.7% | — |
| STX | SELL · 10b5-1 | 2026-06-12 | 2026-06-15 | $880.19 | $871K | -14.2% | -20.8% | -23.0% |
| STX | SELL · 10b5-1 | 2026-06-10 | 2026-06-11 | $821.86 | $545K | +12.5% | -2.5% | +0.3% |
| STX | SELL · 10b5-1 | 2026-05-13 | 2026-05-14 | $815.42 | $12.7M | +13.0% | +32.2% | +13.9% |
| STX | SELL | 2026-01-29 | 2026-02-02 | $442.29 | $8.9M | -4.5% | -16.9% | +63.6% |
| STX | SELL | 2026-01-12 | 2026-01-14 | $299.31 | $423K | +15.2% | +32.0% | +65.3% |
| STX | SELL · 10b5-1 | 2025-12-11 | 2025-12-12 | $295.90 | $595K | -2.3% | +10.1% | +28.1% |
| STX | SELL · 10b5-1 | 2025-11-11 | 2025-11-12 | $288.98 | $816K | -7.4% | +5.1% | +44.8% |
| STX | SELL | 2025-11-05 | 2025-11-05 | $270.00 | $1.6M | -5.7% | +0.5% | +60.3% |
| STX | SELL · 10b5-1 | 2025-10-13 | 2025-10-15 | $225.56 | $636K | +2.8% | +15.2% | +42.1% |
| STX | SELL · 10b5-1 | 2025-09-11 | 2025-09-15 | $193.30 | $1.4M | +4.0% | +3.8% | +35.2% |
| STX | SELL | 2025-09-10 | 2025-09-11 | $191.53 | $2.6M | +16.0% | +11.6% | +52.0% |
| STX | SELL · 10b5-1 | 2025-08-11 | 2025-08-12 | $151.61 | $523K | +1.8% | +25.9% | +88.0% |
| STX | SELL | 2025-08-01 | 2025-08-04 | $155.00 | $915K | -0.7% | +12.4% | +69.4% |
| STX | SELL · 10b5-1 | 2025-07-11 | 2025-07-15 | $144.00 | $248K | +1.3% | +4.5% | +47.3% |
| STX | SELL · 10b5-1 | 2025-06-16 | 2025-06-17 | $130.00 | $78K | +10.3% | +12.1% | +61.3% |
| STX | SELL · 10b5-1 | 2025-06-11 | 2025-06-12 | $129.05 | $445K | +10.7% | +19.1% | +54.2% |
| STX | SELL · 10b5-1 | 2025-06-09 | 2025-06-10 | $130.00 | $467K | +3.1% | +12.0% | +46.6% |
| STX | SELL · 10b5-1 | 2025-06-03 | 2025-06-05 | $124.24 | $9.3M | +1.5% | +15.1% | +36.8% |
| STX | SELL · 10b5-1 | 2025-05-27 | 2025-05-28 | $115.00 | $483K | +10.7% | +20.3% | +40.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.