GCTS · GCT Semiconductor Holding, Inc. · Insider Trading
Substantial doubt about the company's ability to continue as a going concern.
“These factors raise substantial doubt about the Company's ability to continue as a going concern beyond twelve months after the date that these unaudited condensed consolidated financial statements are issued.”View the 10-Q filed Aug 10, 2026
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-09-30 | Lee Kyeongho |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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. |
Common Stock
|
12,971 |
| 2026-09-30 | Chun Kukjin |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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. |
Common Stock
|
12,971 |
| 2026-09-30 | Chan Nelson |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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. |
Common Stock
|
12,971 |
| 2026-09-30 | Barker Robert |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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. |
Common Stock
|
12,971 |
| 2026-09-30 | TUDER JEFFREY |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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. |
Common Stock
|
12,971 |
| 2026-09-30 | Shin Hyunsoo |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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. |
Common Stock
|
12,971 |
| 2026-09-10 | Schlaefer John |
Director, President, CEO & Class III Dir |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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. |
Common Stock, par value $0.0001 per share
|
150,000 |
| 2026-09-10 | Cheng Edmond |
Chief Financial Officer |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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. |
Common Stock, par value $0.0001 per share
|
145,000 |
| 2026-09-10 | Kim Jeong-Min |
Chief Technology Officer |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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. |
Common Stock, par value $0.0001 per share
|
100,000 |
| 2026-09-10 | Sum Alex |
Sr. VP of Sales and Marketing |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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. |
Common Stock, par value $0.0001 per share
|
75,000 |
| 2026-06-30 | Chan Nelson |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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 $2.97 on June 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. |
Common Stock
|
9,259 |
| 2026-06-30 | Shin Hyunsoo |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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 $2.97 on June 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. |
Common Stock
|
9,259 |
| 2026-06-30 | Barker Robert |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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 $2.97 on June 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. |
Common Stock
|
9,259 |
| 2026-06-30 | Chun Kukjin |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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 $2.97 on June 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. |
Common Stock
|
9,259 |
| 2026-06-30 | TUDER JEFFREY |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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 $2.97 on June 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. |
Common Stock
|
9,259 |
| 2026-06-30 | Lee Kyeongho |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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 $2.97 on June 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. |
Common Stock
|
9,259 |
| 2026-03-31 | TUDER JEFFREY |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
24,122 |
| 2026-03-31 | Barker Robert |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
24,122 |
| 2026-03-31 | Lee Kyeongho |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
24,122 |
| 2026-03-31 | Chun Kukjin |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
24,122 |
| 2026-03-31 | Shin Hyunsoo |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
24,122 |
| 2026-03-31 | Chan Nelson |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
24,122 |
| 2026-02-23 | Chun Kukjin |
Director |
Gift↓
|
Common Stock
|
40,000 |
| 2025-12-31 | Shin Hyunsoo |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.20 on December 31, 2025, rounded down to the nearest whole share. The RSU's will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
22,916 |
| 2025-12-31 | Lee Kyeongho |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.20 on December 31, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
22,916 |
| 2025-12-31 | Chun Kukjin |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.20 on December 31, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
22,916 |
| 2025-12-31 | Chan Nelson |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.20 on December 31, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
22,916 |
| 2025-12-31 | TUDER JEFFREY |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.20 on December 31, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
22,916 |
| 2025-12-31 | Barker Robert |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.20 on December 31, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
22,916 |
| 2025-11-25 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
16,725 |
| 2025-11-21 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
3,180 |
| 2025-11-20 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
25,453 |
| 2025-09-30 | Barker Robert |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.52 on September 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,092 |
| 2025-09-30 | Chun Kukjin |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.52 on September 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,092 |
| 2025-09-30 | Chan Nelson |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.52 on September 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,092 |
| 2025-09-30 | Shin Hyunsoo |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
Represents Restricted Stock Units ("RSUs") acquired pursuant to the terms of the GCT Semiconductor Holding, Inc. (the "Issuer") GCT 2024 Omnibus Incentive Compensation Plan. Each RSU represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of the Issuer following vesting. 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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.52 on September 30, 2025, rounded down to the nearest whole share. The RSU's will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,092 |
| 2025-09-30 | Lee Kyeongho |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.52 on September 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,092 |
| 2025-09-30 | TUDER JEFFREY |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.52 on September 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,092 |
| 2025-09-26 | Schlaefer John |
Director, President, CEO & Class III Dir |
Other↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
The transaction is a distribution of 555 shares of Common Stock, for no consideration, by the Parakletos @ Venture Millennium Fund LP. to the Reporting Person. |
Common Stock, par value $0.0001 per share
|
555 |
| 2025-09-19 | Schlaefer John |
Director, President, CEO & Class III Dir |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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 19, 2025 grant date, commencing September 19, 2026, subject to the Reporting Person's continued service with the Issuer. |
Common Stock, par value $0.0001 per share
|
75,000 |
| 2025-09-19 | Kim Jeong-Min |
Chief Technology Officer |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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 19, 2025 grant date, commencing September 19, 2026, subject to the Reporting Person's continued service with the Issuer. |
Common Stock, par value $0.0001 per share
|
75,000 |
| 2025-09-19 | Cheng Edmond |
Chief Financial Officer |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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 19, 2025 grant date, commencing September 19, 2026, subject to the Reporting Person's continued service with the Issuer. |
Common Stock, par value $0.0001 per share
|
75,000 |
| 2025-09-19 | Sum Alex |
Sr. VP of Sales and Marketing |
Award↑
Filing footnotes — Common Stock, par value $0.0001 per share (Direct)
Represents 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 19, 2025 grant date, commencing September 19, 2026, subject to the Reporting Person's continued service with the Issuer. |
Common Stock, par value $0.0001 per share
|
75,000 |
| 2025-09-12 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
44,067 |
| 2025-09-05 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
10,300 |
| 2025-09-04 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
8,250 |
| 2025-08-15 | Shin Hyunsoo |
Director |
Buy↑
|
Common Stock
|
121,000 |
| 2025-06-30 | TUDER JEFFREY |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.49 on June 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,456 |
| 2025-06-30 | Lee Kyeongho |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.49 on June 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,456 |
| 2025-06-30 | Barker Robert |
Director |
Award↑
Filing footnotes — Common Stock (Direct)
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, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.49 on June 30, 2025, rounded down to the nearest whole share. The RSUs will vest on March 31, 2026, subject to continued service through such date. No expiration date is applicable to restricted stock units. |
Common Stock
|
18,456 |