Chitung Liu

Chitung Liu: CFO & SVP at United Microelectronics. What Chitung Liu holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

United Microelectronics (UMC)

Chitung Liu holds 757,951 United Microelectronics shares (0.03% of the company), worth about $16.9M at the last price, according to the Form 4 of Sep 17, 2026.

• Shares held: 527,951 (0.02%), $11.8M — Held in their own name.
• Shares held: 200,000 (0.01%), $4.5M — Held through trusts (By CTBC Bank Trust).
• Shares held: 30,000 (0.00%), $670,650.00 — Held by a spouse or a family member (By Spouse).

Declarations

• United Microelectronics (UMC) — Form 4 of Sep 17, 2026 (CFO & SVP): open-market sale of 1.2M at $142.33; open-market sale of 400,000 at $145.00; 757,951 shares after 0001193125-26-393652
• United Microelectronics (UMC) — Form 4 of Sep 7, 2026 (CFO & SVP): other of 1.0M; other of 1.0M; 1.1M shares after 0001193125-26-384273
• United Microelectronics (UMC) — Form 4 of Jul 13, 2026 (CFO & SVP): open-market sale of 1.9M at $154.89; 1.1M shares after 0001193125-26-301380
• United Microelectronics (UMC) — Form 3 of Mar 18, 2026 (CFO & SVP); 1.5M shares after 0001193125-26-112213

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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