CARLSON THOMAS J 4

What Happened

• Thomas J. Carlson, a director of Great Southern Bancorp (GSBC), exercised options to acquire 2,000 shares at $41.30 per share (total exercise cost $82,600) on 2026-01-28. Those 2,000 option-derived shares were immediately surrendered to satisfy the exercise (a cashless/internal disposition). On the same day he sold 2,000 shares in the open market at $59.89 per share for proceeds of $119,780. Separately, on 2026-01-13 he acquired 122 shares through the company’s dividend reinvestment plan (DRIP) for $62.58 each ($7,635).

Key Details

• Transaction dates and amounts:
  • 2026-01-28: Exercised options — 2,000 shares at $41.30 (acquired; $82,600) and concurrently surrendered/disposed of those 2,000 option shares to cover the exercise (derivative disposition).
  • 2026-01-28: Open-market sale — 2,000 shares at $59.89 (sold; $119,780).
  • 2026-01-13: DRIP acquisition — 122 shares at $62.58 (acquired; $7,635). Footnote F1 notes the DRIP acquisition is exempt from Section 16 reporting and was reported voluntarily.
• Shares owned after the transactions: not specified in the filing.
• Filing timeliness: The Form 4 was filed 2026-01-29; the 2026-01-13 DRIP transaction was reported late (filing indicates a late report).
• No 10b5-1 plan or gift notation is indicated in the filing entries for these transactions.

Context

• The filing shows a cashless option exercise (options exercised and the exercised shares surrendered to cover the exercise cost) plus an additional open-market sale of 2,000 shares. DRIP purchases are routine reinvestments and are recorded here voluntarily.
• These entries are factual disclosures of trades by a director; they do not by themselves indicate the director’s broader market view or portfolio strategy.