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光罩 is a listed company. Its insiders report their share dealings to TWSE / TPEx (MOPS). Between 18 October 2025 and 18 October 2026, 7 insiders published 7 filings.
No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Such operations are usually part of compensation schedules, which makes them a weaker signal than an open-market trade.
Compared with its exchange (518 companies, median 2 filings), a count of 7 filings is above the norm.
There has been no open-market purchase by an insider of 光罩 for at least a year. Half of the filings or more reach the TWSE / TPEx (MOPS) feed on the day of the trade. Until a filing is published, the market cannot know about the trade.
Every figure here comes from the filings published by TWSE / TPEx (MOPS) and describes the past, not future prices; it is not investment advice.
Transparent value + quality ranking, distinct from the insider signal.
FY ended December 2025 · cache
7 of 7 declarations
光罩 is a company listed on the XTAI market, specializing in the production of photolithographic masks for the semiconductor industry.
Insider filings
Over the last 90 days, 7 filings published on 14 October 2026: no open-market purchase or sale filed by an insider. 7 other filings (not open-market purchases or sales: grants, options, plans, sale notices, block transfers).
Summary written automatically from public filings, without human review. General information, identical for every reader: it is not investment advice or a recommendation to buy or sell. Investing involves a risk of capital loss. Generated on 17 October 2026 (UTC)