There are no significant Insider Shareholders in GCT Semiconductor Holding as of December 12, 2025.
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Inc. Anapass, | 8,017,466 | 27 Sep, 2024 | |
| Kyeongho Lee | 1,039,825 | 02 Oct, 2025 | |
| Hyunsoo Shin | 757,771 | 28 Nov, 2025 | |
| Sponsor Group Iii Llc Concord | 632,586 | 28 Mar, 2025 | |
| Jeong-Min Kim | Chief Technology Officer | 302,701 | 22 Sep, 2025 |
| John Schlaefer | President And CEO & Class Iii Dir | 202,728 | 30 Sep, 2025 |
| Alex Sum | Sr. VP Of Sales And Marketing | 183,743 | 22 Sep, 2025 |
| Edmond Cheng | Chief Financial Officer | 151,000 | 22 Sep, 2025 |
| Robert Barker | 95,413 | 02 Oct, 2025 | |
| Jeffrey Tuder | 94,893 | 03 Oct, 2025 | |
| Kukjin Chun | 82,339 | 02 Oct, 2025 | |
| Nelson Chan | 78,604 | 02 Oct, 2025 | |
| Thomas C. King | 30,000 | 17 Nov, 2023 | |
| Lawrence E Leibowitz | 30,000 | 17 Nov, 2023 | |
| Peter Ort | 30,000 | 17 Nov, 2023 | |
| David Yoon | Vice President Of Finance | 8,204 | 27 Mar, 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 25 Nov, 2025 | Hyunsoo Shin | Common Stock | A | 16,725 | $1.28 | 757,771 | D | P |
| 20 Nov, 2025 | Hyunsoo Shin | Common Stock | A | 25,453 | $1.28 | 737,866 | D | P |
| 21 Nov, 2025 | Hyunsoo Shin | Common Stock | A | 3,180 | $1.28 | 741,046 | D | P |
| 30 Sep, 2025 | Robert Barker | Common Stock | A | 18,092 | $0.00 | 95,413 | D | A |
| 30 Sep, 2025 | Hyunsoo Shin | Common Stock | A | 18,092 | $0.00 | 712,413 | D | A |
| 30 Sep, 2025 | Kyeongho Lee | Common Stock | A | 18,092 | $0.00 | 1,039,825 | D | A |
| 30 Sep, 2025 | Robert Barker | - | - | 95,413 | D | |||
| 30 Sep, 2025 | Jeffrey Tuder | Common Stock | A | 18,092 | $0.00 | 94,893 | D | A |
| 30 Sep, 2025 | Kukjin Chun | Common Stock | A | 18,092 | $0.00 | 82,339 | D | A |
| 30 Sep, 2025 | Nelson Chan | Common Stock | A | 18,092 | $0.00 | 78,604 | D | A |
| 26 Sep, 2025 | John Schlaefer | Common Stock, par value $0.0001 per share | A | 555 | $0.00 | 202,728 | D | J |
| 19 Sep, 2025 | Edmond Cheng | Common Stock, par value $0.0001 per share | A | 75,000 | $0.00 | 151,000 | D | A |
| 19 Sep, 2025 | Alex Sum | - | - | 183,743 | D | |||
| 19 Sep, 2025 | Alex Sum | Common Stock, par value $0.0001 per share | A | 75,000 | $0.00 | 183,743 | D | A |
| 19 Sep, 2025 | John Schlaefer | Common Stock, par value $0.0001 per share | A | 75,000 | $0.00 | 202,173 | D | A |
| 19 Sep, 2025 | Jeong-Min Kim | Common Stock, par value $0.0001 per share | A | 75,000 | $0.00 | 302,701 | D | A |
| 12 Sep, 2025 | Hyunsoo Shin | Common Stock | A | 44,067 | $1.51 | 694,321 | D | P |
| 04 Sep, 2025 | Hyunsoo Shin | Common Stock | A | 8,250 | $1.26 | 639,954 | D | P |
| 05 Sep, 2025 | Hyunsoo Shin | Common Stock | A | 10,300 | $1.30 | 650,254 | D | P |
| 15 Aug, 2025 | Hyunsoo Shin | Common Stock | A | 121,000 | $1.26 | 631,704 | D | P |