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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•45 filings

GCTS

GCT Semiconductor Holding, Inc.

No net buying or selling imbalance over the last 3 months

No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

$0.00

0 buyers · 0 sellers

12-month purchases

$58,058

1 distinct insiders

12-month sales

$0.00

0 distinct insiders

Highlighted alerts

7

0 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

47
Raw transactions
Everything returned by the filing
7
Voluntary view
P/S trades after deterministic checks
39
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
Code
A
Shares
12,971
Price
$0.00
Footnotes
4

Each Restricted Stock Unit ("RSU") represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of GCT Semiconductor Holding, Inc. (the "Issuer") following vesting. The RSUs become payable in Common Stock in accordance with a deferral election made by the reporting person. The number of shares subject to and issuable under the award is determined on the last day of each calendar quarter during the period April 1, 2026 through March 31, 2027 (beginning with the quarter ending June 30, 2026) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $2.12 on September 30, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2027, subject to continued service through such date. No expiration date is applicable to restricted stock units.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

7 transactions

Shin Hyunsoo

Director

PurchaseAlert
Shares
16,725
Price
$1.28
Value
$21,408
Open SEC filing

Shin Hyunsoo

Director

PurchaseAlert
Shares
3,180
Price
$1.28
Value
$4,070
Open SEC filing

Shin Hyunsoo

Director

PurchaseAlert
Shares
25,453
Price
$1.28
Value
$32,580
Open SEC filing

Shin Hyunsoo

Director

PurchaseAlert
Shares
44,067
Price
$1.51
Value
$66,541
Open SEC filing

Shin Hyunsoo

Director

PurchaseAlert
Shares
10,300
Price
$1.30
Value
$13,390
Open SEC filing

Shin Hyunsoo

Director

PurchaseAlert
Shares
8,250
Price
$1.26
Value
$10,395
Open SEC filing

Shin Hyunsoo

Director

PurchaseAlert
Shares
121,000
Price
$1.26
Value
$152,460
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.