SEC Form 4 · accession 0000929638-26-003526
GCT Semiconductor Holding, Inc. · GCTS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Alex Sum
Officer — Sr. VP of Sales and Marketing
Period of report
Sep 10, 2026
Accepted (ET)
Sep 14, 2026 · 4:32 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001851961
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock, par value $0.0001 per share | Sep 10, 2026 | A | 75,000 | $0.00 | A | 258,743 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Represents restricted stock units ("RSU"), which constitute a contingent right to receive one share of common stock, par value $0.0001 per share, of GCT Semiconductor Holding, Inc. The RSUs vest over four years in equal 25% installments on each anniversary of the September 10, 2026 grant date, commencing September 10, 2026, subject to the Reporting Person's continued service with the Issuer.