13 insiders reported 86 Form 4 transactions for GREAT SOUTHERN BANCORP, INC. (GSBC) over the past 18 months (most recent 2026-08-20). Recent activity: BROWN JULIE A (Director) Sell 851 shares, CARLSON THOMAS J (Director) Buy 96 shares, Pitt Douglas M (Director) Buy 46 shares, Hart Debra Mallonee (Director) Buy 11 shares, TURNER JOSEPH W (President/CEO) Buy 15 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | BROWN JULIE A | Director | Sell | 851 | $68,931 |
| 2026-08-18 | CARLSON THOMAS J | Director | Buy | 96 | $7,473 |
| 2026-08-18 | Pitt Douglas M | Director | Buy | 46 | $3,589 |
| 2026-08-18 | Hart Debra Mallonee | Director | Buy | 11 | $858 |
| 2026-08-11 | TURNER JOSEPH W | President/CEO | Buy | 15 | $1,166 |
| 2026-08-11 | BROWN JULIE A | Director | Buy | 43 | $3,335 |
| 2026-08-11 | Edwards Steven D | Director | Buy | 23 | $1,787 |
| 2026-07-27 | TURNER WILLIAM V | Director | Sell | 6,400 | $503,744 |
| 2026-05-26 | STEINERT EARL A JR | Director | Buy | 1,000 | $61,550 |
| 2026-05-26 | STEINERT EARL A JR | Director | Buy | 1,500 | $86,970 |
| 2026-05-26 | STEINERT EARL A JR | Director | Buy | 2,000 | $120,300 |
| 2026-05-26 | STEINERT EARL A JR | Director | Sell | 4,500 | $322,271 |
| 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 | Edwards Steven D | Director | Buy | 26 | $1,767 |
| 2026-05-14 | Pitt Douglas M | Director | Buy | 54 | $3,633 |
| 2026-05-14 | BROWN JULIE A | Director | Buy | 50 | $3,378 |
| 2026-05-14 | CARLSON THOMAS J | Director | Buy | 109 | $7,366 |
| 2026-05-06 | Baker Kevin L | Insider | Buy | 2,800 | $146,160 |
| 2026-05-06 | Baker Kevin L | Insider | Sell | 2,800 | $195,888 |
| 2026-05-04 | Maples Mark A | Insider | Buy | 1,187 | $68,822 |
| 2026-05-04 | Maples Mark A | Insider | Buy | 1,200 | $73,860 |
| 2026-05-04 | Maples Mark A | Insider | Sell | 2,387 | $164,596 |
| 2026-05-01 | COPELAND REX A | Treasurer | Buy | 2,036 | $106,279 |
Source: SEC Form 4 filings · as of 2026-08-20