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XNYS 28 Mar, 2025 5:30 PM (EDT)



Insider Trading disclosures for GCT Semiconductor Holding Inc.

The latest disclosure was made by Alex Sum in GCT Semiconductor Holding Inc. where a trade of 13,259 Common Stock, par value $0.0001 per share done at an average price of $0.1 was reported to US exchanges on Feb. 19, 2025.

Insider trading is the trading of a company’s securities by individuals with access to confidential or material non-public information about the company. A company is required to report trading by corporate officers, directors, or other company members with significant access to privileged information to the Securities and Exchange Commission (SEC).

Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Alex Sum Sr. VP of Sales and Marketing Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.11 per share. 19 Feb 2025 13,259 108,743 - 0.1 1,458 Common Stock, par value $0.0001 per share
Alex Sum Sr. VP of Sales and Marketing Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 19 Feb 2025 13,259 0 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Jan 2025 35,669 0 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.11 per share. 13 Jan 2025 35,669 127,173 - 0.1 3,924 Common Stock, par value $0.0001 per share
Lee Kyeongho Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2024 11,802 1,697,279 - 0 Common Stock
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2024 11,802 41,162 - 0 Common Stock
Chun Kukjin Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2024 11,802 28,964 - 0 Common Stock
Nelson C. Chan Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2024 11,802 25,288 - 0 Common Stock
Jeffrey M. Tuder Director, Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2024 11,802 25,288 - 0 Common Stock
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2024 11,802 67,693 - 0 Common Stock
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 2.57 per share. 13 Dec 2024 37,000 55,891 - 2.6 95,090 Common Stock
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 2.50 per share. 13 Dec 2024 200 18,891 - 2.5 500 Common Stock
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 2.50 per share. 13 Dec 2024 800 18,691 - 2.5 2,000 Common Stock
Jeffrey M. Tuder Director, Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 8,208 13,486 - 0 Common Stock
Kukjin Chun Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 8,208 17,162 - 0 Common Stock
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 8,208 17,891 - 0 Common Stock
Kyeongho Lee Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 8,208 1,685,477 - 0 Common Stock
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 8,208 29,360 - 0 Common Stock
Nelson C. Chan Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 8,208 13,486 - 0 Common Stock
Edmond Cheng Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 21 Aug 2024 76,000 76,000 - 0 Common Stock
Jeffrey M. Tuder Director, Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2024 5,278 5,278 - 0 Common Stock
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2024 5,278 9,683 - 0 Common Stock
Kukjin Chun Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2024 5,278 8,954 - 0 Common Stock
Kyeongho Lee Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2024 5,278 1,677,269 - 0 Common Stock
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2024 5,278 21,152 - 0 Common Stock
Nelson C. Chan Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2024 5,278 5,278 - 0 Common Stock
Kyeongho Lee Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 93,380 93,380 - 0 Common Stock, par value $0.0001 per share
Kyeongho Lee Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 867,840 867,840 - 0 Common Stock, par value $0.0001 per share
Kyeongho Lee Director, Chairman & Class III Director Other type of transaction at price $ 0.00 per share. 26 Mar 2024 800,000 800,000 - - Private Placement Warrants
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 28,191 28,191 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 78,700 78,700 - 0 Common Stock, par value $0.0001 per share
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 12,804 12,804 - 0 Common Stock, par value $0.0001 per share
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 35,669 35,669 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 21,533 21,533 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 50,425 50,425 - - Stock Option (Right to Buy)
Alex Sum Sr. VP of Sales and Marketing Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,259 13,259 - - Stock Option (Right to Buy)
Alex Sum Sr. VP of Sales and Marketing Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 5,341 5,341 - 0 Common Stock, par value $0.0001 per share
Alex Sum Sr. VP of Sales and Marketing Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 90,143 90,143 - 0 Common Stock, par value $0.0001 per share
Alex Sum Sr. VP of Sales and Marketing Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 9,338 9,338 - - Stock Option (Right to Buy)
Alex Sum Sr. VP of Sales and Marketing Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,540 13,540 - - Stock Option (Right to Buy)
Alex Sum Sr. VP of Sales and Marketing Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,820 13,820 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 12,804 12,804 - 0 Common Stock, par value $0.0001 per share
Alex Sum VP of Marketing and Sales Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,540 13,540 - - Stock Option (Right to Buy)
Alex Sum VP of Marketing and Sales Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,820 13,820 - - Stock Option (Right to Buy)
Alex Sum VP of Marketing and Sales Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,259 13,259 - - Stock Option (Right to Buy)
Alex Sum VP of Marketing and Sales Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 5,341 5,341 - 0 Common Stock, par value $0.0001 per share
Alex Sum VP of Marketing and Sales Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 90,142 90,142 - 0 Common Stock, par value $0.0001 per share
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 21,533 21,533 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 28,191 28,191 - - Stock Option (Right to Buy)
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 35,669 35,669 - - Stock Option (Right to Buy)
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 3,735 3,735 - 0 Common Stock, par value $0.0001 per share
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 78,700 78,700 - 0 Common Stock, par value $0.0001 per share
John Schlaefer Director, President, CEO & Class III Dir Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 50,425 50,425 - - Stock Option (Right to Buy)
Kyeongho Lee Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 93,380 93,380 - 0 Common Stock, par value $0.0001 per share
Kyeongho Lee Director, Chairman & Class III Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 867,840 867,840 - 0 Common Stock, par value $0.0001 per share
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 1,867 1,867 - - Stock Option (Right to Buy)
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,073 13,073 - 0 Common Stock, par value $0.0001 per share
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 3,735 3,735 - 0 Common Stock, par value $0.0001 per share
Robert J. Barker Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 933 933 - - Stock Option (Right to Buy)
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 30,093 30,093 - 0 Common Stock, par value $0.0001 per share
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 6,536 6,536 - - Stock Option (Right to Buy)
Hyunsoo Hans Shin Director, Class II Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 456 456 - 0 Common Stock, par value $0.0001 per share
Kukjin Chun Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 3,735 3,735 - 0 Common Stock, par value $0.0001 per share
Kukjin Chun Director, Class I Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 6,536 6,536 - - Stock Option (Right to Buy)
Jeemee Kim VP of Engineering & CTO Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 18,676 18,676 - - Stock Option (Right to Buy)
Jeemee Kim VP of Engineering & CTO Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 12,415 12,415 - 0 Common Stock, par value $0.0001 per share
Jeemee Kim VP of Engineering & CTO Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 82,359 3,731 - - Stock Option (Right to Buy)
Jeemee Kim VP of Engineering & CTO Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 59,952 59,952 - - Stock Option (Right to Buy)
Jeemee Kim VP of Engineering & CTO Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 215,285 215,285 - 0 Common Stock, par value $0.0001 per share
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 8,204 8,204 - 0 Common Stock, par value $0.0001 per share
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 6,536 6,536 - - Stock Option (Right to Buy)
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 9,431 9,431 - - Stock Option (Right to Buy)
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 13,540 13,540 - - Stock Option (Right to Buy)
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 20,543 20,543 - - Stock Option (Right to Buy)
David Yoon Vice President of Finance Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 18,676 18,676 - - Stock Option (Right to Buy)
Alex Sum VP of Marketing and Sales Grant, award, or other acquisition of securities at price $ 0.00 per share. 26 Mar 2024 9,338 9,338 - - Stock Option (Right to Buy)
Lawrence Leibowitz Director 16 Nov 2023 30,000 30,000 - - Class A Common Stock
Peter Ort Director 16 Nov 2023 30,000 0 - - Class B Common Stock
Peter Ort Director 16 Nov 2023 30,000 30,000 - - Class A Common Stock
Thomas C. King Director 16 Nov 2023 30,000 0 - - Class B Common Stock
Thomas C. King Director 16 Nov 2023 30,000 30,000 - - Class A Common Stock
Lawrence Leibowitz Director 16 Nov 2023 30,000 0 - - Class B Common Stock
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades disclosures