GCT Semiconductor Holding, Inc. (GCTS) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-07

GCT Semiconductor Holding, Inc. (GCTS) has filed 6 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 3 Form 8-K material event filings were reported by GCTS in the last 90 days. InsiderAlpha tracks every GCTS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About GCT Semiconductor Holding, Inc. (GCTS)

SIC classificationSemiconductors & Related Devices (SIC 3674)
SEC CIK0001851961

90-Day SEC Filing Activity

Form 4 filings (90d)6
Form 8-K filings (90d)3
Latest Form 4 filing2026-07-07

Recent GCTS Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
Chan NelsonInsiderA — Grant or award9.3K$0.00—SEC
Lee KyeonghoInsiderA — Grant or award9.3K$0.00—SEC
Shin HyunsooInsiderA — Grant or award9.3K$0.00—SEC
Chun KukjinInsiderA — Grant or award9.3K$0.00—SEC
TUDER JEFFREYInsiderA — Grant or award9.3K$0.00—SEC
Barker RobertInsiderA — Grant or award9.3K$0.00—SEC
TUDER JEFFREYInsiderA — Grant or award24.1K$0.00—SEC
Shin HyunsooInsiderA — Grant or award24.1K$0.00—SEC
Chun KukjinInsiderA — Grant or award24.1K$0.00—SEC
Lee KyeonghoInsiderA — Grant or award24.1K$0.00—SEC
Chan NelsonInsiderA — Grant or award24.1K$0.00—SEC
Barker RobertInsiderA — Grant or award24.1K$0.00—SEC
Chun KukjinInsiderG — Bona-fide gift40.0K$0.00—SEC
TUDER JEFFREYInsiderA — Grant or award22.9K$0.00—SEC
Barker RobertInsiderA — Grant or award22.9K$0.00—SEC

All transactions sourced from SEC EDGAR Form 4 filings for GCT Semiconductor Holding, Inc. (GCTS). Updated in real time as new filings are submitted to the SEC.

Most-Active GCTS Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
Chan Nelson1—
Lee Kyeongho1—
TUDER JEFFREY1—
Barker Robert1—
Chun Kukjin1—

Recent GCTS Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in GCTS insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

GCTS Insider Trading — FAQ

What is the latest insider trade for GCTS?
GCT Semiconductor Holding, Inc. (GCTS) had 6 insider filings in the last 90 days, with the most recent on 2026-07-07. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying GCTS stock?
0 insider purchases of GCTS were filed in the last 90 days.
How many insiders are selling GCTS stock?
0 insider sales of GCTS were filed in the last 90 days.
Where can I see GCTS SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every GCTS SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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