GCT Semiconductor Holding, Inc. (GCTS-WT) Insider Ownership

Historic Insider Ownership Trends

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Nelson Chan - 125,642 0 02 Apr, 2026
Peter Ort - 30,000 0 17 Nov, 2023
Edmond Cheng Chief Financial Officer 151,000 0 22 Sep, 2025
John Schlaefer President, Ceo Class Iii Dir 202,728 0 30 Sep, 2025
Kyeongho Lee - 1,086,863 0 02 Apr, 2026
Alex Sum Sr. Vp Of Sales And Marketing 183,743 0 22 Sep, 2025
Jeffrey Tuder - 141,931 0 02 Apr, 2026
Sponsor Group Iii Llc Concord - 7,957,726 0 17 Nov, 2023
David Yoon Vice President Of Finance 8,204 0 27 Mar, 2024
Hyunsoo Shin - 804,809 0 02 Apr, 2026
Jeong-Min Kim Chief Technology Officer 302,701 0 22 Sep, 2025
Robert Barker - 142,451 0 02 Apr, 2026
Kukjin Chun - 89,377 0 02 Apr, 2026
Inc. Anapass, - 8,017,466 0 27 Sep, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Mar, 2026 Kyeongho Lee Common Stock A 24,122 $0.00 1,086,863 D A
31 Mar, 2026 Kukjin Chun Common Stock A 24,122 $0.00 89,377 D A
31 Mar, 2026 Kyeongho Lee Common Stock A 24,122 $0.00 1,086,863 D A
31 Mar, 2026 Hyunsoo Shin Common Stock A 24,122 $0.00 804,809 D A
31 Mar, 2026 Jeffrey Tuder Common Stock A 24,122 $0.00 141,931 D A
31 Mar, 2026 Jeffrey Tuder Common Stock A 24,122 $0.00 141,931 D A
31 Mar, 2026 Hyunsoo Shin Common Stock A 24,122 $0.00 804,809 D A
31 Mar, 2026 Nelson Chan Common Stock A 24,122 $0.00 125,642 D A
31 Mar, 2026 Hyunsoo Shin Common Stock A 24,122 $0.00 804,809 D A
31 Mar, 2026 Jeffrey Tuder Common Stock A 24,122 $0.00 141,931 D A
31 Mar, 2026 Kyeongho Lee Common Stock A 24,122 $0.00 1,086,863 D A
31 Mar, 2026 Robert Barker Common Stock A 24,122 $0.00 142,451 D A
23 Feb, 2026 Kukjin Chun Common Stock D 40,000 $0.00 65,255 D G
31 Dec, 2025 Kyeongho Lee Common Stock A 22,916 $0.00 1,062,741 D A
31 Dec, 2025 Jeffrey Tuder Common Stock A 22,916 $0.00 117,809 D A
31 Dec, 2025 Kyeongho Lee Common Stock A 22,916 $0.00 1,062,741 D A
31 Dec, 2025 Jeffrey Tuder Common Stock A 22,916 $0.00 117,809 D A
31 Dec, 2025 Hyunsoo Shin Common Stock A 22,916 $0.00 780,687 D A
31 Dec, 2025 Jeffrey Tuder Common Stock A 22,916 $0.00 117,809 D A
31 Dec, 2025 Hyunsoo Shin Common Stock A 22,916 $0.00 780,687 D A