Tunc Doluca
Tunc Doluca: Director at Western Digital. What Tunc Doluca 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.
Western Digital (WDC)
Tunc Doluca holds 39,434 Western Digital shares (0.01% of the company), worth about $15.3M at the last price, according to the Form 4 of Nov 20, 2025.
- Shares held: 37,849 (0.01%), $14.7M — Held through companies or funds.
- Shares held: 1,585 (0.00%), $613,727.85 — Held in their own name.
Declarations
- Western Digital (WDC) — Form 4 of Sep 17, 2026 0001266824-26-000204
- Western Digital (WDC) — Form 4 of Jun 17, 2026 0001266824-26-000148
- Western Digital (WDC) — Form 4 of Mar 18, 2026 0001266824-26-000060
- Western Digital (WDC) — Form 4 of Dec 18, 2025 0001266824-25-000283
- Western Digital (WDC) — Form 4 of Nov 20, 2025: grant or award of 1,585; option exercise or conversion of 14; 39,434 shares after 0001266824-25-000227
- Western Digital (WDC) — Form 4 of Sep 18, 2025 0001266824-25-000200
- Western Digital (WDC) — Form 4 of Jun 18, 2025 0001266824-25-000118
- Western Digital (WDC) — Form 4 of Nov 20, 2024: grant or award of 3,759; 36,134 shares after 0001266824-24-000116
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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