Insider tradingForm 4
Seagate Technology Holdings plc (STX) Insider Trading
29 open-market trades reported since Aug 14, 2026: 0 purchases worth $0 and 29 sales worth $336.1M.
By insider
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| James Ci Lee | General Counsel | 0 | $0 | 3 | $10.9M |
| William D. Mosley | CEO | 0 | $0 | 7 | $147.1M |
| John Christopher Morris | CTO | 0 | $0 | 6 | $24.5M |
| Ban Seng Teh | EVP | 0 | $0 | 6 | $62.9M |
| Gianluca Romano | CFO | 0 | $0 | 6 | $90.2M |
| Yolanda Lee Conyers | Director | 0 | $0 | 1 | $611K |
All trades
| Filed | Insider | Type | Value | 3 mo. after |
|---|---|---|---|---|
| Oct 26 | James Ci LeeGeneral Counsel | ▼ SELL | $351K | |
| Oct 2 | William D. MosleyCEO | ▼ SELL10b5-1 | $17.4M | |
| Oct 2 | William D. MosleyCEO | ▼ SELL10b5-1 | $10.3M | |
| Sep 22 | John Christopher MorrisCTO | ▼ SELL10b5-1 | $8.21M | |
| Sep 16 | William D. MosleyCEO | ▼ SELL | $75.6M | |
| Sep 16 | Ban Seng TehEVP | ▼ SELL10b5-1 | $41.2M | |
| Sep 16 | Gianluca RomanoCFO | ▼ SELL | $38.6M | |
| Sep 16 | John Christopher MorrisCTO | ▼ SELL | $11.9M | |
| Sep 15 | Gianluca RomanoCFO | ▼ SELL10b5-1 | $38.1M | |
| Sep 15 | Gianluca RomanoCFO | ▼ SELL10b5-1 | $3.93M | |
| Sep 15 | William D. MosleyCEO | ▼ SELL | $1.46M | |
| Sep 15 | Ban Seng TehEVP | ▼ SELL10b5-1 | $770K | |
| Sep 15 | Gianluca RomanoCFO | ▼ SELL10b5-1 | $746K | |
| Sep 15 | John Christopher MorrisCTO | ▼ SELL | $385K | |
| Sep 11 | William D. MosleyCEO | ▼ SELL | $2.46M | |
| Sep 11 | Gianluca RomanoCFO | ▼ SELL | $1.16M | |
| Sep 11 | Ban Seng TehEVP | ▼ SELL10b5-1 | $570K | |
| Sep 11 | John Christopher MorrisCTO | ▼ SELL | $493K | |
| Sep 3 | William D. MosleyCEO | ▼ SELL10b5-1 | $24.5M | |
| Sep 3 | Yolanda Lee ConyersDirector | ▼ SELL10b5-1 | $611K | |
| Aug 26 | James Ci LeeGeneral Counsel | ▼ SELL10b5-1 | $7.16M | |
| Aug 24 | William D. MosleyCEO | ▼ SELL | $15.4M | |
| Aug 24 | Ban Seng TehEVP | ▼ SELL10b5-1 | $8.41M | |
| Aug 24 | Gianluca RomanoCFO | ▼ SELL | $7.71M | |
| Aug 24 | Ban Seng TehEVP | ▼ SELL10b5-1 | $5.10M | |
| Aug 24 | James Ci LeeGeneral Counsel | ▼ SELL | $3.35M | |
| Aug 24 | John Christopher MorrisCTO | ▼ SELL10b5-1 | $2.99M | |
| Aug 24 | John Christopher MorrisCTO | ▼ SELL10b5-1 | $437K | |
| Aug 14 | Ban Seng TehEVP | ▼ SELL | $6.78M |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings