Christopher Cummiskey

Christopher Cummiskey: EVP at Southern Company. What Christopher Cummiskey 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.

Southern Company (SO)

Christopher Cummiskey holds 36,657 Southern Company shares (0.00% of the company), worth about $3.2M at the last price, according to the Form 4 of Mar 19, 2026.

• Shares held: 30,800 (0.00%), $2.7M — Held in their own name.
• Shares held: 5,857 (0.00%), $508,066.33 — Held in a retirement account (401(k)).
• Share units: 2,880 (0.00%), $249,825.60 — Southern Company promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.

Declarations

• Southern Company (SO) — Form 4 of Mar 19, 2026 (EVP): open-market sale of 6,669 at $96.55; 36,657 shares after 0001193125-26-115921
• Southern Company (SO) — Form 4 of Feb 11, 2026 (EVP): grant or award of 22,178; shares withheld for tax of 9,880 at $90.86; 43,326 shares after 0001193125-26-051195
• Southern Company (SO) — Form 4 of Feb 1, 2026 (EVP): option exercise or conversion of 1,794; shares withheld for tax of 758 at $89.31; 30,226 shares after 0001193125-26-036097
• Southern Company (SO) — Form 4 of May 23, 2025 (EVP): open-market sale of 12,335 at $89.54; 28,165 shares after 0000950170-25-077437
• Southern Company (SO) — Form 4 of Feb 19, 2025 (EVP): open-market sale of 944 at $86.00; 40,500 shares after 0000950170-25-024113
• Southern Company (SO) — Form 4 of Feb 13, 2025 (EVP): option exercise or conversion of 1,708; shares withheld for tax of 764 at $86.78; 41,444 shares after 0000950170-25-022180
• Southern Company (SO) — Form 4 of Feb 5, 2025 (EVP & CCO): option exercise or conversion of 1,736; shares withheld for tax of 854 at $83.87; 40,500 shares after 0000950170-25-016410
• Southern Company (SO) — Form 4 of Feb 4, 2025 (EVP & CCO): open-market sale of 837 at $83.32; 28,165 shares after 0000950170-25-014427
• Southern Company (SO) — Form 4 of Feb 1, 2025 (Chairman, President & CEO, SCS): option exercise or conversion of 1,659; shares withheld for tax of 822 at $83.95; 29,002 shares after 0000950170-25-013213

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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