Securities Trigger TWSE Attention-Trading Surveillance Notice — GlobalWafers

Summary

GlobalWafers' shares have met the Taiwan Stock Exchange's threshold criteria for issuing an 'Attention Trading Information' notice, which flags securities exhibiting unusual price or volume movements under TWSE market-surveillance rules. The company is making this mandatory disclosure to help investors distinguish the nature of recent trading activity. Full body available on MOPS.

Historical Impact

10 past Material Information · ≈ 8-K events at GlobalWafers

Median +5d

-11.55%

Range

-30.32% to +5.21%

Positive outcomes

3/10

Filed	P₀	P₊₅	+5d
Sep 14, 2026	NT$900	NT$944	+4.89%
Aug 20, 2026	NT$993	NT$950	-4.33%

Full Translation

Subject line (verbatim translation): 'The company's securities have met the criteria for publishing Attention Trading Information; accordingly, this announcement is made to help investors distinguish and understand the relevant situation.' — Under TWSE Rule 58 and related surveillance regulations, when a listed security's price or volume movement exceeds defined thresholds within a specified period, the exchange designates it an 'attention stock' (注意股票) and requires the issuer to publish a formal notice. This filing is that mandatory disclosure. It does not, by itself, indicate any specific corporate action, but signals that TWSE has flagged GlobalWafers' shares for heightened monitoring due to abnormal trading patterns. Investors should monitor subsequent announcements for any underlying material event. [Body not available — subject line only. See MOPS for full announcement.]