GCT Semiconductor, Inc. Insider Trading

GCTS

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Last 12 months

Insiders bought 58K on the open market and sold nothing.

Net open-market

+58K

2 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

1 / 0

executives and directors

Last open-market buy

Nov 2025

Nov 25, 2025

Get an email when GCTS's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Nov 25, 2025	Hyunsoo Shin Director	Bought	16,725	$1.28	21K	2.3%	Form 4
Nov 20, 2025 – Nov 21, 2025	Hyunsoo Shin Director	Bought 2 parts	28,633	$1.28 average	37K	4.0%	Form 4
Sep 12, 2025	Hyunsoo Shin Director	Bought	44,067	$1.51	67K	6.8%	Form 4
Sep 4, 2025 – Sep 5, 2025	Hyunsoo Shin Director	Bought 2 parts	18,550	$1.28 average	24K	2.9%	Form 4
Aug 15, 2025	Hyunsoo Shin Director	Bought	121,000	$1.26	152K	24%	Form 4
Jun 10, 2025	Hyunsoo Shin Director	Bought 2 parts	85,000	$1.18 average	100K	21%	Form 4
Jun 4, 2025 – Jun 5, 2025	Hyunsoo Shin Director	Bought 3 parts	160,000	$1.02 average	164K	65%	Form 4
May 23, 2025	Hyunsoo Shin Class II Director	Bought	77,000	$1.04	80K	45%	Form 4
May 20, 2025	Hyunsoo Shin Class II Director	Bought	86,000	$1.18	101K	102%	Form 4

Nov 25, 2025
Hyunsoo Shin
Director · bought 16,725 at $1.28
21K
2.3% of stake
Nov 20, 2025 – Nov 21, 2025
Hyunsoo Shin
Director · bought 28,633 at avg $1.28
37K
4.0% of stake
Sep 12, 2025
Hyunsoo Shin
Director · bought 44,067 at $1.51
67K
6.8% of stake
Sep 4, 2025 – Sep 5, 2025
Hyunsoo Shin
Director · bought 18,550 at avg $1.28
24K
2.9% of stake
Aug 15, 2025
Hyunsoo Shin
Director · bought 121,000 at $1.26
152K
24% of stake
Jun 10, 2025
Hyunsoo Shin
Director · bought 85,000 at avg $1.18
100K
21% of stake
Jun 4, 2025 – Jun 5, 2025
Hyunsoo Shin
Director · bought 160,000 at avg $1.02
164K
65% of stake
May 23, 2025
Hyunsoo Shin
Class II Director · bought 77,000 at $1.04
80K
45% of stake
May 20, 2025
Hyunsoo Shin
Class II Director · bought 86,000 at $1.18
101K
102% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch GCTS, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Peers

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Held by ETFs

GCTS is in 1 US ETF. The largest of them, with GCTS's weight in each:

iShares Micro-Cap ETFIWC0.03%of the fund

Spot a number that looks wrong? Check it in GCTS's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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