Seagate Technology Holdings plc (STX) Stock After Hours on Dec. 22, 2025: Nasdaq‑100 Inclusion, Dividend Deadline, and What to Watch Before the Dec. 23 Market Open
Seagate Technology Holdings plc (NASDAQ: STX) ended Monday’s regular session sharply lower even as the broader market started the holiday week in positive territory—and investors are now turning their attention to three near-term catalysts: lingering Nasdaq‑100 reconstitution effects, a dividend