GCT Semiconductor Holding, Inc. insider trading

GCTSNYSE

$2.25+0.11 (+5.14%)as of Oct 2, 2026

“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.” — Peter Lynch

Insider Trading vs Stock Price data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+50.0%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Open market purchase

Open market sell

Marker size reflects transaction size.

Net dollar flow · Buy / Sell balance

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Key players

KLKyeongho LeeDirectorNot reportedof company
HSHyunsoo ShinDirectorNot reportedof company
CSConcord Sponsor Group III10% OwnerNot reportedof company
JKJeong-Min KimChief Technology OfficerNot reportedof company
JSJohn SchlaeferPresident, CEO & Class III DirNot reportedof company
ECEdmond ChengChief Financial OfficerNot reportedof company
ASAlex SumSr. VP of Sales and MarketingNot reportedof company
RBRobert BarkerDirectorNot reportedof company
JTJeffrey TuderDirectorNot reportedof company
NCNelson C. ChanDirectorNot reportedof company

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Insider activity

Fromto

Company	Insider / role	Action	ΔOwn	Avg price	Amount
GCTS	Hyunsoo ShinDirector	Open market purchase$21.4K	+2.3%	$1.28	$21.4K	Nov 25, 2025	Nov 28, 2025
GCTS	Hyunsoo ShinDirector	Open market purchase$4.07K	+0.4%	$1.28	$4.07K	Nov 21, 2025	Nov 24, 2025
GCTS	Hyunsoo ShinDirector	Open market purchase$32.6K	+3.6%	$1.28	$32.6K	Nov 20, 2025	Nov 24, 2025

End of history · 3 transactions