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GEM: what insiders have been doing
GEM is a listed company. Its insiders report their share dealings to TWSE / TPEx (MOPS). In the past year (18 October 2025 to 18 October 2026), 5 filings came from 2 insiders.
The filings describe grants, exercises and other transfers rather than trades on the open market. Compensation-driven entries like these are tracked, but they say little about how insiders judge the share price.
No insider has bought GEM shares on the open market in the past twelve months. The median gap between trade and publication is zero days: most filings appear on the same day. The shorter that gap, the sooner other investors can see what insiders have done.
With 5 filings in twelve months, the company is more active than the median of 2 filings across the 515 companies we follow on the same exchange.
Source: insider filings from TWSE / TPEx (MOPS). Past trades are no guide to future returns.
Insider Decl.
5
Thresholds
n/a
Buy Volume
n/a
n/a
Sell Volume
n/a
n/a
Fundamental score
Ranked 23,281 of 24,148 companies
13.5
score / 100
Value18
Quality9
FCF yld-6.9%
Earn yld-9.4%
EV/EBITDA·
ROE-17%
Gross mgn-0.3%
Net mgn-16%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
NT$32
Analyst consensus
Income statement
RevenueNT$3.2B
Gross profit-NT$8M-0% margin
EBITDA-NT$172.4M-5% margin
Net income-NT$500.8M-6.6% margin
Valuation
P/Book3.3x
Beta0.96
Balance sheet & cash
Market capNT$5.4B
Total debtNT$2.7B
Free Cash Flow-NT$366.3M
Debt / Equity170%
Profitability & ownership
ROE-16.9%
ROA-2.7%
% insiders54.9%
% institutions0.0%
Last declaration on 22 September 2026
Declarations5 total
5 of 5 declarations
About GEM
建通 is a company listed on the XTAI market. It operates in the financial sector, providing various services to clients.