Matthew M. Kim
Matthew M. Kim: Comptroller at Southern Company. What Matthew M. Kim 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)
Matthew M. Kim holds 6,110 Southern Company shares (0.00% of the company), worth about $554,256.88 at the last price, according to the Form 4 of Oct 1, 2026.
- Shares held: 4,888 (0.00%), $443,390.48 — Held in their own name.
- Shares held: 1,222 (0.00%), $110,866.40 — Held in a retirement account (401(k)).
- Share units: 1,881 (0.00%), $170,625.51 — 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 Oct 1, 2026 (Comptroller): open-market sale of 100 at $82.73; 6,110 shares after 0001193125-26-410627
- Southern Company (SO) — Form 4 of Sep 3, 2026 (Comptroller): open-market sale of 1,400 at $88.87; 6,210 shares after 0001193125-26-383300
- Southern Company (SO) — Form 4 of Sep 1, 2026 (Comptroller): open-market sale of 100 at $88.45; 7,622 shares after 0001193125-26-381193
- Southern Company (SO) — Form 4 of Aug 3, 2026 (Comptroller): open-market sale of 100 at $94.28; 7,710 shares after 0001193125-26-331835
- Southern Company (SO) — Form 4 of Jul 1, 2026 (Comptroller): open-market sale of 100 at $95.77; 7,800 shares after 0001193125-26-294114
- Southern Company (SO) — Form 4 of Jun 1, 2026 (Comptroller): open-market sale of 100 at $91.16; 7,900 shares after 0001193125-26-251358
- Southern Company (SO) — Form 4 of May 1, 2026 (Comptroller): open-market sale of 100 at $96.57; 8,000 shares after 0001193125-26-203796
- Southern Company (SO) — Form 4 of Apr 1, 2026 (Comptroller): option exercise or conversion of 82; shares withheld for tax of 82 at $96.94; 6,888 shares after 0001193125-26-140265
- Southern Company (SO) — Form 4 of Feb 24, 2026 (Comptroller): open-market sale of 5,123 at $95.15; 8,091 shares after 0001193125-26-071778
- Southern Company (SO) — Form 4 of Feb 11, 2026 (Comptroller): grant or award of 4,450; shares withheld for tax of 2,014 at $90.86; 15,228 shares after 0001193125-26-051209
- Southern Company (SO) — Form 4 of Feb 5, 2026 (Comptroller): option exercise or conversion of 292; shares withheld for tax of 146 at $91.08; 10,768 shares after 0001193125-26-041986
- Southern Company (SO) — Form 4 of Feb 1, 2026 (Comptroller): option exercise or conversion of 340; shares withheld for tax of 170 at $89.31; 10,622 shares after 0001193125-26-036030
- Southern Company (SO) — Form 3/A of Jul 31, 2025 (Comptroller); 11,891 shares after 0000950170-25-114440
- Southern Company (SO) — Form 3 of Jul 31, 2025 (Comptroller); 11,813 shares after 0002082705-25-000002
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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