Follow the people · Insider
Matthew M. Kim
Matthew M. Kim files insider transactions with the SEC as a comptroller of Southern Co (SO). We hold 7 disclosed purchases and sales filed since 3 February 2026, 4 of them in the last 90 days.
- Files forSO
- Disclosed buys and sells7 in all, 4 in the last 90 days
- Last disclosure4 September 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 31 January 2026 — 3 September 2026Comptroller · Southern Co (SO)35 Form 4 lines · source: SEC Form 4
Everything they disclosed
35 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 1,400 shares of Southern CoSEC Form 44 September 2026Southern Company Common Stock · traded 3 September 2026 · filed 4 September 2026
- ▼ sold on the open market 100 shares of Southern CoSEC Form 43 September 2026Southern Company Common Stock · traded 1 September 2026 · filed 3 September 2026
- ▼ sold on the open market 100 shares of Southern CoSEC Form 44 August 2026Southern Company Common Stock · traded 3 August 2026 · filed 4 August 2026
- ▼ sold on the open market 100 shares of Southern CoSEC Form 42 July 2026Southern Company Common Stock · traded 1 July 2026 · filed 2 July 2026
- ▼ sold on the open market 100 shares of Southern CoSEC Form 41 June 2026Southern Company Common Stock · traded 1 June 2026 · filed 1 June 2026
- ▼ sold on the open market 100 shares of Southern CoSEC Form 44 May 2026Southern Company Common Stock · traded 1 May 2026 · filed 4 May 2026
- exercised options over 82 shares of Southern CoSEC Form 42 April 2026Southern Company Common Stock · traded 1 April 2026 · filed 2 April 2026
- had shares withheld for tax on 82 shares of Southern CoSEC Form 42 April 2026Southern Company Common Stock · traded 1 April 2026 · filed 2 April 2026
- exercised options over 13 shares of Southern Co (a derivative holding)SEC Form 42 April 2026Southern Co Restricted Stock Units · traded 1 April 2026 · filed 2 April 2026
- exercised options over 23 shares of Southern Co (a derivative holding)SEC Form 42 April 2026Southern Co Restricted Stock Units · traded 1 April 2026 · filed 2 April 2026
- exercised options over 42 shares of Southern Co (a derivative holding)SEC Form 42 April 2026Performance Restricted Stock Units · traded 1 April 2026 · filed 2 April 2026
- ▼ sold on the open market 5,123 shares of Southern CoSEC Form 425 February 2026Southern Company Common Stock · traded 24 February 2026 · filed 25 February 2026
- ▼ sold on the open market 5,123 shares of Southern CoSEC Form 425 February 2026Southern Company Common Stock · traded 24 February 2026 · filed 25 February 2026
- was granted 4,450 shares of Southern CoSEC Form 413 February 2026Southern Company Common Stock · traded 11 February 2026 · filed 13 February 2026
- had shares withheld for tax on 2,014 shares of Southern CoSEC Form 413 February 2026Southern Company Common Stock · traded 11 February 2026 · filed 13 February 2026
- was granted 4,450 shares of Southern CoSEC Form 413 February 2026Southern Company Common Stock · traded 11 February 2026 · filed 13 February 2026
- had shares withheld for tax on 2,014 shares of Southern CoSEC Form 413 February 2026Southern Company Common Stock · traded 11 February 2026 · filed 13 February 2026
- exercised options over 292 shares of Southern CoSEC Form 49 February 2026Southern Company Common Stock · traded 5 February 2026 · filed 9 February 2026
- had shares withheld for tax on 146 shares of Southern CoSEC Form 49 February 2026Southern Company Common Stock · traded 5 February 2026 · filed 9 February 2026
- exercised options over 282 shares of Southern Co (a derivative holding)SEC Form 49 February 2026Southern Co Restricted Stock Units · traded 5 February 2026 · filed 9 February 2026
- exercised options over 282 shares of Southern Co (a derivative holding)SEC Form 49 February 2026Southern Co Restricted Stock Units · traded 5 February 2026 · filed 9 February 2026
- exercised options over 292 shares of Southern CoSEC Form 49 February 2026Southern Company Common Stock · traded 5 February 2026 · filed 9 February 2026
- had shares withheld for tax on 146 shares of Southern CoSEC Form 49 February 2026Southern Company Common Stock · traded 5 February 2026 · filed 9 February 2026
- exercised options over 340 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 31 January 2026 · filed 3 February 2026
- had shares withheld for tax on 170 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 31 January 2026 · filed 3 February 2026
- exercised options over 345 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 317 shares of Southern Co (a derivative holding)SEC Form 43 February 2026Southern Co Restricted Stock Units · traded 31 January 2026 · filed 3 February 2026
- exercised options over 308 shares of Southern Co (a derivative holding)SEC Form 43 February 2026Southern Co Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- had shares withheld for tax on 173 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 317 shares of Southern Co (a derivative holding)SEC Form 43 February 2026Southern Co Restricted Stock Units · traded 31 January 2026 · filed 3 February 2026
- exercised options over 308 shares of Southern Co (a derivative holding)SEC Form 43 February 2026Southern Co Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 340 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 31 January 2026 · filed 3 February 2026
- had shares withheld for tax on 170 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 31 January 2026 · filed 3 February 2026
- exercised options over 345 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 1 February 2026 · filed 3 February 2026
- had shares withheld for tax on 173 shares of Southern CoSEC Form 43 February 2026Southern Company Common Stock · traded 1 February 2026 · filed 3 February 2026
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.