13 insiders reported 73 Form 4 transactions for GREAT SOUTHERN BANCORP, INC. (GSBC) over the past 18 months (most recent 2026-05-20). Recent activity: Hart Debra Mallonee (Director) Buy 13 shares, TURNER WILLIAM V (Director) Buy 6,000 shares, TURNER WILLIAM V (Director) Sell 6,000 shares, CARLSON THOMAS J (Director) Buy 109 shares, BROWN JULIE A (Director) Buy 50 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-20 | Hart Debra Mallonee | Director | Buy | 13 | $875 |
| 2026-05-19 | TURNER WILLIAM V | Director | Buy | 6,000 | $313,200 |
| 2026-05-19 | TURNER WILLIAM V | Director | Sell | 6,000 | $410,104 |
| 2026-05-14 | CARLSON THOMAS J | Director | Buy | 109 | $7,366 |
| 2026-05-14 | BROWN JULIE A | Director | Buy | 50 | $3,378 |
| 2026-05-14 | Pitt Douglas M | Director | Buy | 54 | $3,633 |
| 2026-05-14 | Edwards Steven D | Director | Buy | 26 | $1,767 |
| 2026-05-01 | COPELAND REX A | Treasurer | Buy | 1,250 | $65,250 |
| 2026-05-01 | COPELAND REX A | Treasurer | Buy | 2,036 | $106,279 |
| 2026-05-01 | TURNER JOSEPH W | President/CEO | Sell | 6,000 | $408,962 |
| 2026-05-01 | COPELAND REX A | Treasurer | Sell | 2,036 | $138,957 |
| 2026-05-01 | TURNER JOSEPH W | President/CEO | Buy | 17 | $1,149 |
| 2026-05-01 | TURNER JOSEPH W | President/CEO | Buy | 6,000 | $313,200 |
| 2026-05-01 | COPELAND REX A | Treasurer | Buy | 914 | $47,711 |
| 2026-05-01 | COPELAND REX A | Treasurer | Sell | 914 | $62,856 |
| 2026-04-21 | Bugh John M | Insider | Buy | 2,500 | $103,250 |
| 2026-04-21 | Bugh John M | Insider | Sell | 2,500 | $168,975 |
| 2026-02-24 | TURNER JOSEPH W | President/CEO | Sell | 1,200 | $74,184 |
| 2026-02-24 | Ausburn Kevin R | Director | Buy | 5,000 | $257,000 |
| 2026-02-24 | Ausburn Kevin R | Director | Buy | 2,000 | $104,400 |
| 2026-02-17 | Edwards Steven D | Director | Buy | 28 | $1,758 |
| 2026-02-17 | Hart Debra Mallonee | Director | Buy | 13 | $810 |
| 2026-02-17 | Pitt Douglas M | Director | Buy | 58 | $3,613 |
| 2026-02-17 | BROWN JULIE A | Director | Buy | 53 | $3,306 |
| 2026-02-06 | COPELAND REX A | Treasurer | Buy | 1,797 | $74,216 |
Source: SEC Form 4 filings · as of 2026-05-20