Shin Hyunsoo — SEC Form 4 filings
SEC reporting owner CIK 2007757. 20 Form 4 filings on record with FilingPulse; latest filed 2026-07-02.
Transaction summary — filings shown
Covers all 20 filings on record, filed 2024-03-27 to 2026-07-02. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 14 legs across 9 filings — 636,975 shares, $746,391 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 15.
- Largest priced transaction: purchase of 121,000 shares @ $1.26 ($152,460) in GCT Semiconductor Holding, Inc., filed 2025-08-19.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| GCT Semiconductor Holding, Inc. (GCTS) | Director | 20 | 14 legs · 636,975 sh · $746,391 | — | 15 |
Form 4 filings — Shin Hyunsoo
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-02 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 9,259 @ $0 | EDGAR |
| 2026-04-02 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 24,122 @ $0 | EDGAR |
| 2026-01-05 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 22,916 @ $0 | EDGAR |
| 2025-11-28 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 16,725 @ $1.28 | EDGAR |
| 2025-11-24 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 25,453 @ $1.28 · Purchase (P): 3,180 @ $1.28 | EDGAR |
| 2025-10-02 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 18,092 @ $0 | EDGAR |
| 2025-09-16 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 44,067 @ $1.51 | EDGAR |
| 2025-09-08 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 8,250 @ $1.26 · Purchase (P): 10,300 @ $1.30 | EDGAR |
| 2025-08-19 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 121,000 @ $1.26 | EDGAR |
| 2025-07-02 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 18,456 @ $0 | EDGAR |
| 2025-06-12 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 40,000 @ $1.20 · Purchase (P): 45,000 @ $1.16 | EDGAR |
| 2025-06-06 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 80,000 @ $1.02 · Purchase (P): 58,700 @ $1.03 · Purchase (P): 21,300 @ $1.02 | EDGAR |
| 2025-05-27 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 77,000 @ $1.04 | EDGAR |
| 2025-05-21 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Purchase (P): 86,000 @ $1.18 | EDGAR |
| 2025-04-02 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 16,768 @ $0 | EDGAR |
| 2025-01-02 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 11,802 @ $0 | EDGAR |
| 2024-12-16 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 800 @ $2.50 · Grant/award (A): 200 @ $2.50 · Grant/award (A): 37,000 @ $2.57 | EDGAR |
| 2024-11-21 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 8,208 @ $0 | EDGAR |
| 2024-07-03 | 4 | GCT Semiconductor Holding, Inc. (GCTS) | Grant/award (A): 5,278 @ $0 | EDGAR |
| 2024-03-27 | 4 | Concord Acquisition Corp III (GCTS) | Grant/award (A): 456 @ $0 · Grant/award (A): 3,735 @ $0 · Grant/award (A): 6,536 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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