$STX insider trading
Over the last 12 months, Seagate Technology Holdings insiders reported no purchases and 118 sales totaling $294.6M across SEC Form 4 filings. 81% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $294.6M 118 events
- Events · 12m
- 118 Form 4 filings, grouped
- Insiders · 12m
- 11 distinct reporters
- 10b5-1 share
- 81% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | Lee James CIEVP & CLO · O | ▼ Sale | 9,013 | $794.84 | $7.2M | -96.3% | plan · 29 tranches |
| Aug 21, 2026 | Teh Ban SengEVP & Chief Commercial Officer · O | ▼ Sale | 9,862 | $852.97 | $8.4M | -65.4% | plan · 27 tranches |
| Aug 21, 2026 | Morris John ChristopherEVP & CTO · O | ▼ Sale | 4,038.5 | $847.57 | $3.4M | -20.7% | plan · 4 tranches |
| Aug 21, 2026 | Lee James CIEVP & CLO · O | ▼ Sale | 3,938.75 | $849.35 | $3.3M | -42.5% | 3 tranches |
| Aug 21, 2026 | Romano GianlucaEVP & CFO · O | ▼ Sale | 9,076.25 | $849.35 | $7.7M | -24.2% | 3 tranches |
| Aug 21, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 18,138.5 | $849.35 | $15.4M | -5.5% | 3 tranches |
| Aug 20, 2026 | Teh Ban SengEVP & Chief Commercial Officer · O | ▼ Sale | 6,048 | $842.97 | $5.1M | -28.6% | plan · 19 tranches |
| Aug 13, 2026 | Teh Ban SengEVP & Chief Commercial Officer · O | ▼ Sale | 7,361 | $920.8 | $6.8M | -71.5% | 2 tranches |
| Aug 7, 2026 | Romano GianlucaEVP & CFO · O | ▼ Sale | 880 | $845.12 | $744K | -4.1% | plan · 8 tranches |
| Aug 7, 2026 | Romano GianlucaEVP & CFO · O | ▼ Sale | 14,091 | $811.25 | $11.4M | -39.5% | plan · 28 tranches |
| Aug 7, 2026 | Romano GianlucaEVP & CFO · O | ▼ Sale | 7,240 | $781.64 | $5.7M | -16.9% | plan · 29 tranches |
| Aug 3, 2026 | Morris John ChristopherEVP & CTO · O | ▼ Sale | 168 | $817.76 | $137K | -1.4% | plan |
| Aug 3, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 17,080 | $827.3 | $14.1M | -5.5% | plan · 19 tranches |
| Aug 3, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 12,920 | $803.47 | $10.4M | -4% | plan · 29 tranches |
| Jul 30, 2026 | Lee James CIEVP & CLO · O | ▼ Sale | 694 | $877.45 | $609K | -66.7% | plan |
| Jul 23, 2026 | Lee James CIEVP & CLO · O | ▼ Sale | 542.25 | $905.01 | $491K | -34.7% | — |
| Jul 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 9,343 | $924.42 | $8.6M | -2.9% | plan · 15 tranches |
| Jul 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 20,657 | $910.48 | $18.8M | -6% | plan · 29 tranches |
| Jun 12, 2026 | Morris John ChristopherEVP & CTO · O | ▼ Sale | 1,364 | $880.19 | $1.2M | -10.1% | plan · 2 tranches |
| Jun 12, 2026 | Teh Ban SengEVP & Chief Commercial Officer · O | ▼ Sale | 989 | $880.19 | $871K | -18.7% | plan |
| Jun 12, 2026 | Romano GianlucaEVP & CFO · O | ▼ Sale | 903.25 | $880.19 | $795K | -2.1% | — |
| Jun 12, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 1,768.25 | $880.19 | $1.6M | -0.5% | — |
| Jun 10, 2026 | Teh Ban SengEVP & Chief Commercial Officer · O | ▼ Sale | 663 | $821.86 | $545K | -13.4% | plan |
| Jun 10, 2026 | Morris John ChristopherEVP & CTO · O | ▼ Sale | 573.75 | $821.66 | $471K | -4.4% | 2 tranches |
| Jun 10, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 2,854.75 | $821.74 | $2.3M | -0.9% | 2 tranches |
| Jun 10, 2026 | Romano GianlucaEVP & CFO · O | ▼ Sale | 1,350.5 | $821.76 | $1.1M | -3.1% | 2 tranches |
| Jun 4, 2026 | Arumugavelu ShankarD | ▼ Sale | 1,000 | $927.68 | $928K | -13.1% | — |
| Jun 2, 2026 | BHATT PRATD | ▼ Sale | 1,000 | $929.88 | $930K | -7.2% | plan |
| Jun 1, 2026 | Conyers Yolanda LeeD | ▼ Sale | 750 | $885.33 | $664K | -15.5% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 80 | $940 | $75K | — | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 273 | $938.82 | $256K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 355 | $937.39 | $333K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 320 | $935.44 | $299K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 440 | $934.17 | $411K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 415 | $933.25 | $387K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 200 | $931.65 | $186K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 240 | $930.12 | $223K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 1,480 | $929.38 | $1.4M | -0.5% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 320 | $928.21 | $297K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 320 | $926.83 | $297K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 871 | $925.87 | $806K | -0.3% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 360 | $924.88 | $333K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 480 | $923.58 | $443K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 1,598 | $922.95 | $1.5M | -0.5% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 1,807 | $921.75 | $1.7M | -0.5% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 1,730 | $920.9 | $1.6M | -0.5% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 1,691 | $919.62 | $1.6M | -0.5% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 480 | $918.75 | $441K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 320 | $916.78 | $293K | -0.1% | plan |
| Jun 1, 2026 | MOSLEY WILLIAM DCEO · O·D | ▼ Sale | 200 | $915.52 | $183K | -0.1% | plan |
Every $STX filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Seagate Technology Holdings filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $STX feed.