STX Seagate Technology
Nasdaq · SEC CIK 1137789 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $572.01M 83 sales by 11 insiders
- Filings on record
- 411 since 2021-07-22, latest 2026-09-22 16:49
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| MOSLEY WILLIAM D | CEO, Dir | — | $281.22M |
| Romano Gianluca | EVP, CFO | — | $146.39M |
| Teh Ban Seng | EVP, Chief Commercial Off | — | $89.27M |
| Morris John Christopher | EVP, CTO | — | $30.59M |
| Lee James CI | EVP, CLO | — | $12.56M |
| Chong Kian Fatt | EVP Gbl Ops | — | $4.36M |
| Arumugavelu Shankar | Dir | — | $2.40M |
| Conyers Yolanda Lee | Dir | — | $1.78M |
| Tilenius Stephanie | Dir | — | $1.76M |
| BHATT PRAT | Dir | — | $929.9K |
Transactions 605
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-09-15 | 2025-09-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $193.30 | -3,732 | 4,172 | -47% | -$721.4K |
| DM | 2025-09-15 | 2025-09-12 | STX | Morris John Christopher | EVP, CTO | S - Sale+OE | $195.80 | -15.3K | 19.2K | -44% | -$3.00M |
| DM | 2025-09-15 | 2025-09-11+ | STX | Morris John Christopher | EVP, CTO | F - Tax | $196.09 | -3,593 | 13.6K | -21% | -$704.5K |
| DM | 2025-09-15 | 2025-09-11+ | STX | Morris John Christopher | EVP, CTO | M - OptEx | $0.00 | +7,876 | 16.8K | +88% | $0 |
| DM | 2025-09-15 | 2025-09-11+ | STX | Romano Gianluca | EVP, CFO | F - Tax | $196.05 | -12.1K | 57.8K | -17% | -$2.37M |
| DM | 2025-09-15 | 2025-09-11+ | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +23.9K | 47.7K | +100% | $0 |
| DM | 2025-09-15 | 2025-09-11+ | STX | Chong Kian Fatt | EVP Gbl Ops | M - OptEx | $0.00 | +2,694 | 5,062 | +114% | $0 |
| DM | 2025-09-15 | 2025-09-11+ | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $0.00 | +68.5K | 538.6K | +15% | $0 |
| DM | 2025-09-15 | 2025-09-11+ | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $196.03 | -34.6K | 473.4K | -7% | -$6.78M |
| DM | 2025-09-11 | 2025-09-09 | STX | Chong Kian Fatt | EVP Gbl Ops | M - OptEx | $0.00 | +3,475 | 2,107 | New | $0 |
| DM | 2025-09-11 | 2025-09-09 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | +5,824 | 10.8K | +117% | $0 |
| D | 2025-09-11 | 2025-09-10 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $191.53 | -6,781 | 5,190 | -57% | -$1.30M |
| DM | 2025-09-11 | 2025-09-09 | STX | Morris John Christopher | EVP, CTO | F - Tax | $191.59 | -2,496 | 22.7K | -10% | -$478.2K |
| DM | 2025-09-11 | 2025-09-09 | STX | Morris John Christopher | EVP, CTO | M - OptEx | $0.00 | +5,470 | 23.6K | +30% | $0 |
| DM | 2025-09-11 | 2025-09-09 | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $191.59 | -13.2K | 469.5K | -3% | -$2.52M |
| DM | 2025-09-11 | 2025-09-09 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $0.00 | +26.0K | 474.1K | +6% | $0 |
| DM | 2025-09-11 | 2025-09-09 | STX | Romano Gianluca | EVP, CFO | F - Tax | $191.59 | -6,608 | 44.5K | -13% | -$1.27M |
| DM | 2025-09-11 | 2025-09-09 | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +13.1K | 42.5K | +44% | $0 |
| M | 2025-09-04 | 2025-09-02 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $168.97 | -20.0K | 477.9K | -4% | -$3.38M |
| M | 2025-09-04 | 2025-09-02 | STX | Conyers Yolanda Lee | Dir | S - Sale | $168.80 | -750 | 4,305 | -15% | -$126.6K |
| D | 2025-08-12 | 2025-08-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $151.61 | -1,724 | 6,147 | -22% | -$261.4K |
| DM | 2025-08-12 | 2025-08-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $69.89 | +1,724 | 7,871 | +28% | +$120.5K |
| 2025-08-07 | 2025-08-06 | STX | Geldmacher Jay L | Dir | S - Sale | $150.50 | -2,500 | 352 | -88% | -$376.2K | |
| M | 2025-08-04 | 2025-07-31+ | STX | Lee James CI | CLO | S - Sale | $154.41 | -4,625 | 4,597 | -50% | -$714.1K |
| 2025-08-04 | 2025-08-01 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale | $155.00 | -5,905 | 6,147 | -49% | -$915.3K | |
| M | 2025-08-04 | 2025-08-01 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $153.75 | -20.0K | 479.4K | -4% | -$3.07M |
| DM | 2025-07-24 | 2025-07-22 | STX | Lee James CI | CLO | F - Tax | $146.59 | -2,305 | 1,288 | -64% | -$337.9K |
| DM | 2025-07-24 | 2025-07-22 | STX | Lee James CI | CLO | M - OptEx | $0.00 | +6,930 | 2,152 | New | $0 |
| DMA | 2025-07-15 | 2025-06-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $44.42 | +2,711 | 12.2K | +29% | +$120.4K |
| DA | 2025-07-15 | 2025-06-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $129.05 | -1,723 | 12.7K | -12% | -$222.4K |
| D | 2025-07-15 | 2025-07-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $144.00 | -1,725 | 12.1K | -13% | -$248.4K |
| DM | 2025-07-15 | 2025-07-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $69.89 | +1,725 | 13.8K | +14% | +$120.6K |
| M | 2025-07-02 | 2025-07-01 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $144.66 | -20.0K | 498.7K | -4% | -$2.89M |
| 2025-06-17 | 2025-06-16 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale | $130.00 | -599 | 10.3K | -5% | -$77.9K | |
| D | 2025-06-12 | 2025-06-11 | STX | Morris John Christopher | SVP, CTO | M - OptEx | $0.00 | +941 | 13.1K | +8% | $0 |
| D | 2025-06-12 | 2025-06-11 | STX | Morris John Christopher | SVP, CTO | F - Tax | $126.49 | -288 | 12.9K | -2% | -$36.4K |
| D | 2025-06-12 | 2025-06-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $129.05 | -1,723 | 10.9K | -14% | -$222.4K |
| D | 2025-06-12 | 2025-06-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | +988 | 12.7K | +8% | $0 |
| D | 2025-06-12 | 2025-06-11 | STX | Romano Gianluca | EVP, CFO | F - Tax | $126.49 | -856 | 39.4K | -2% | -$108.3K |
| D | 2025-06-12 | 2025-06-11 | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +1,694 | 40.2K | +4% | $0 |
| D | 2025-06-12 | 2025-06-11 | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $126.49 | -1,677 | 518.7K | -0.3% | -$212.1K |
| D | 2025-06-12 | 2025-06-11 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $0.00 | +3,318 | 520.4K | +0.6% | $0 |
| D | 2025-06-12 | 2025-06-11 | STX | Chong Kian Fatt | SVP, Gbl Ops | M - OptEx | $0.00 | +678 | 879 | +337% | $0 |
| D | 2025-06-10 | 2025-06-09 | STX | Chong Kian Fatt | SVP, Gbl Ops | M - OptEx | $0.00 | +201 | 201 | New | $0 |
| D | 2025-06-10 | 2025-06-09 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $130.00 | -3,594 | 11.1K | -25% | -$467.2K |
| D | 2025-06-10 | 2025-06-09 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $130.17 | +599 | 11.7K | +5% | +$78.0K |
| DM | 2025-06-10 | 2025-06-09 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $52.08 | +57.2K | 570.0K | +11% | +$2.98M |
| D | 2025-06-10 | 2025-06-09 | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $130.17 | -1,422 | 517.1K | -0.3% | -$185.1K |
| D | 2025-06-10 | 2025-06-09 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale+OE | $130.19 | -54.3K | 515.7K | -10% | -$7.08M |
| D | 2025-06-10 | 2025-06-09 | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +958 | 39.0K | +3% | $0 |
| D | 2025-06-10 | 2025-06-09 | STX | Romano Gianluca | EVP, CFO | F - Tax | $130.17 | -485 | 38.6K | -1% | -$63.1K |
| D | 2025-06-10 | 2025-06-09 | STX | Morris John Christopher | SVP, CTO | M - OptEx | $0.00 | +499 | 12.4K | +4% | $0 |
| D | 2025-06-10 | 2025-06-09 | STX | Morris John Christopher | SVP, CTO | F - Tax | $130.17 | -153 | 12.2K | -1% | -$19.9K |
| 2025-06-06 | 2025-06-05 | STX | Tilenius Stephanie | Dir | S - Sale | $128.04 | -2,693 | 12.2K | -18% | -$344.8K | |
| 2025-06-06 | 2025-06-02 | STX | CANNON MICHAEL R | Dir | S - Sale | $119.00 | -24.2K | 10.8K | -69% | -$2.88M | |
| DM | 2025-06-05 | 2025-06-03+ | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $74.48 | +66.4K | 60.5K | New | +$4.94M |
| DM | 2025-06-05 | 2025-06-03+ | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $124.24 | -74.7K | 18.6K | -80% | -$9.28M |
| 2025-06-04 | 2025-06-02 | STX | Conyers Yolanda Lee | Dir | S - Sale | $117.01 | -750 | 5,055 | -13% | -$87.8K | |
| DM | 2025-06-04 | 2025-06-02+ | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale+OE | $119.87 | -70.0K | 523.3K | -12% | -$8.39M |
| D | 2025-06-04 | 2025-06-03 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $54.78 | +50.0K | 565.7K | +10% | +$2.74M |
| DMA | 2025-06-04 | 2025-05-22+ | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $54.78 | +100.0K | 605.7K | +20% | +$5.48M |
| DMA | 2025-06-04 | 2025-05-22 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale+OE | $109.47 | -70.0K | 535.7K | -12% | -$7.66M |
| D | 2025-05-30 | 2025-05-30 | STX | Romano Gianluca | EVP, CFO | M - OptEx | $87.34 | +26.8K | 64.9K | +70% | +$2.34M |
| DM | 2025-05-30 | 2025-05-29+ | STX | Romano Gianluca | EVP, CFO | S - Sale+OE | $117.45 | -51.8K | 47.2K | -52% | -$6.09M |
| 2025-05-28 | 2025-05-27 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale | $115.00 | -4,201 | 23.0K | -15% | -$483.1K | |
| I | 2025-05-23 | 2025-05-22 | STX | BRUNER JUDY | Dir | S - Sale | $108.71 | -10.4K | 12.3K | -46% | -$1.14M |
| M | 2025-05-23 | 2025-05-22 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $109.47 | -70.0K | 550.0K | -11% | -$7.66M |
| 2025-05-23 | 2025-05-22 | STX | Chong Kian Fatt | SVP, Gbl Ops | S - Sale | $111.26 | -6,410 | 0 | -100% | -$713.2K | |
| M | 2025-04-02 | 2025-04-01 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $84.56 | -20.0K | 555.7K | -3% | -$1.69M |
| D | 2025-03-25 | 2025-03-22 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | +3,514 | 27.2K | +15% | $0 |
| D | 2025-03-12 | 2025-03-11 | STX | Romano Gianluca | EVP, CFO | F - Tax | $86.97 | -856 | 63.1K | -1% | -$74.4K |
| D | 2025-03-12 | 2025-03-11 | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +1,694 | 64.0K | +3% | $0 |
| D | 2025-03-12 | 2025-03-11 | STX | Chong Kian Fatt | SVP, Gbl Ops | M - OptEx | $0.00 | +678 | 6,410 | +12% | $0 |
| D | 2025-03-12 | 2025-03-11 | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $86.97 | -1,677 | 575.7K | -0.3% | -$145.8K |
| D | 2025-03-12 | 2025-03-11 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $0.00 | +3,318 | 577.4K | +0.6% | $0 |
| D | 2025-03-12 | 2025-03-11 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | +988 | 23.7K | +4% | $0 |
| D | 2025-03-12 | 2025-03-11 | STX | Morris John Christopher | SVP, CTO | F - Tax | $86.97 | -288 | 11.9K | -2% | -$25.0K |
| D | 2025-03-12 | 2025-03-11 | STX | Morris John Christopher | SVP, CTO | M - OptEx | $0.00 | +941 | 12.2K | +8% | $0 |
| D | 2025-03-10 | 2025-03-09 | STX | Morris John Christopher | SVP, CTO | M - OptEx | $0.00 | +499 | 11.4K | +5% | $0 |
| D | 2025-03-10 | 2025-03-09 | STX | Morris John Christopher | SVP, CTO | F - Tax | $88.00 | -153 | 11.2K | -1% | -$13.5K |
| D | 2025-03-10 | 2025-03-09 | STX | Chong Kian Fatt | SVP, Gbl Ops | M - OptEx | $0.00 | +201 | 5,732 | +4% | $0 |
| D | 2025-03-10 | 2025-03-09 | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $88.00 | -1,422 | 574.0K | -0.2% | -$125.1K |
| D | 2025-03-10 | 2025-03-09 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $0.00 | +2,814 | 575.5K | +0.5% | $0 |
| D | 2025-03-10 | 2025-03-09 | STX | Romano Gianluca | EVP, CFO | F - Tax | $88.00 | -485 | 62.3K | -0.8% | -$42.7K |
| D | 2025-03-10 | 2025-03-09 | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +958 | 62.7K | +2% | $0 |
| D | 2025-03-10 | 2025-03-09 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | +599 | 22.7K | +3% | $0 |
| M | 2025-03-04 | 2025-03-03 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $101.57 | -20.0K | 581.1K | -3% | -$2.03M |
| 2025-03-04 | 2025-03-03 | STX | Conyers Yolanda Lee | Dir | S - Sale | $102.95 | -750 | 5,805 | -11% | -$77.2K | |
| D | 2025-02-24 | 2025-02-20 | STX | MOSLEY WILLIAM D | CEO, Dir | F - Tax | $102.64 | -4,755 | 592.6K | -0.8% | -$488.1K |
| D | 2025-02-24 | 2025-02-20 | STX | MOSLEY WILLIAM D | CEO, Dir | M - OptEx | $0.00 | +11.8K | 597.4K | +2% | $0 |
| D | 2025-02-24 | 2025-02-20 | STX | Morris John Christopher | SVP, CTO | M - OptEx | $0.00 | +4,428 | 12.3K | +56% | $0 |
| D | 2025-02-24 | 2025-02-20 | STX | Morris John Christopher | SVP, CTO | F - Tax | $102.64 | -1,415 | 10.9K | -12% | -$145.2K |
| D | 2025-02-24 | 2025-02-20 | STX | Chong Kian Fatt | SVP, Gbl Ops | M - OptEx | $0.00 | +4,428 | 5,531 | +401% | $0 |
| D | 2025-02-24 | 2025-02-20 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | +5,905 | 22.1K | +36% | $0 |
| DM | 2025-02-24 | 2025-02-20+ | STX | Romano Gianluca | EVP, CFO | M - OptEx | $0.00 | +25.9K | 68.9K | +60% | $0 |
| DM | 2025-02-24 | 2025-02-20+ | STX | Romano Gianluca | EVP, CFO | F - Tax | $101.56 | -11.8K | 61.8K | -16% | -$1.20M |
| M | 2025-02-05 | 2025-02-03 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $94.13 | -20.0K | 585.6K | -3% | -$1.88M |
| M | 2025-01-06 | 2025-01-02 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $86.65 | -20.0K | 605.5K | -3% | -$1.73M |
| D | 2024-12-13 | 2024-12-11 | STX | Chong Kian Fatt | SVP, Gbl Ops | M - OptEx | $98.39 | +678 | 879 | +337% | +$66.7K |
| D | 2024-12-13 | 2024-12-11 | STX | Morris John Christopher | SVP, CTO | F - Tax | $98.39 | -430 | 7,898 | -5% | -$42.3K |
Purchase Sale Sale after option exercise All abbreviations