SCHEDULE: SUNP Corp Increases Stake in GCT Semiconductor to 5.2%

SUNP Corp has filed an amendment to its Schedule 13G, disclosing a beneficial ownership of 5.2% in GCT Semiconductor Holding, Inc.

Summary

• SUNP Corp, a Republic of Korea entity, beneficially owns 2,910,870 shares of GCT Semiconductor Holding, Inc. common stock.
• This ownership represents 5.2% of the Issuer's common stock outstanding.
• The percentage ownership was calculated based on 55,859,904 shares of common stock outstanding as of August 7, 2025, as reported in GCT Semiconductor's Form 10-Q filed with the SEC on August 12, 2025.
• SUNP Corp holds sole voting and dispositive power over 2,605,109 shares.
• SUNP Corp holds shared voting and dispositive power over 305,761 shares.
• The shares are directly held by M-Venture Investment, Inc., M-Material.Parts.Equipment Platform Investment 1, L.P., Asia Pacific Venture Invest L.P., and Asia Pacific Venture Invest II L.P., which are wholly-owned subsidiaries of SUNP Corp.
• Shared power relates to shares beneficially owned by Global Growth Investment, L.P.

Sentiment

Score: 5

Explanation: The filing is a factual disclosure of beneficial ownership and does not contain information that would inherently sway sentiment positively or negatively regarding the issuer's performance or outlook.

Stakeholder Impact

• Indicates a significant institutional investor's stake, which may influence market perception and trading activity for GCT Semiconductor shareholders.

Key Dates

Keywords

GCT Semiconductor, SUNP Corp, Beneficial Ownership, Schedule 13G, Common Stock, Investment, Equity Stake, SEC Filing