Michael Christopher Southworth

Michael Christopher Southworth: Director at Grid Dynamics. What Michael Christopher Southworth 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.

Grid Dynamics (GDYN)

Michael Christopher Southworth holds 55,331 Grid Dynamics shares (0.07% of the company), worth about $441,264.73 at the last price, according to the Form 4 of Dec 23, 2025.

• Shares held: 55,331 (0.07%), $441,264.73 — Held in their own name.

Declarations

• Grid Dynamics (GDYN) — Form 4 of Dec 23, 2025: grant or award of 12,500; grant or award of 6,521; 55,331 shares after 0000899140-25-001474
• Grid Dynamics (GDYN) — Form 4 of Dec 23, 2024: grant or award of 3,672 at $20.42; 36,310 shares after 0000899140-24-001399

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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