GREAT SOUTHERN BANCORP INC (GSBC) — insider trading
Financials · NASDAQ
GREAT SOUTHERN BANCORP INC (GSBC) has 38 reported SEC Form 4 insider transactions in our data, including 8 open-market sales among the most recent 38 (latest 2026-05-26).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-26 | STEINERT EARL A JR | Director | Option exercise / conversion (derivative) | 1,000 | $61.55 | $61.5K | Form 4 |
| 2026-05-26 | STEINERT EARL A JR | Director | Option exercise / conversion (derivative) | 1,500 | $57.98 | $87.0K | Form 4 |
| 2026-05-26 | STEINERT EARL A JR | Director | Option exercise / conversion (derivative) | 2,000 | $60.15 | $120.3K | Form 4 |
| 2026-05-26 | STEINERT EARL A JR | Director | Open-market sale | 4,500 | $71.62 | $322.3K | Form 4 |
| 2026-05-26 | STEINERT EARL A JR | Director | Option exercise / conversion | 1,000 | $61.55 | $61.5K | Form 4 |
| 2026-05-26 | STEINERT EARL A JR | Director | Option exercise / conversion | 1,500 | $57.98 | $87.0K | Form 4 |
| 2026-05-26 | STEINERT EARL A JR | Director | Option exercise / conversion | 2,000 | $60.15 | $120.3K | Form 4 |
| 2026-05-18 | TURNER WILLIAM V | Director | Option exercise / conversion (derivative) | 6,000 | $52.20 | $313.2K | Form 4 |
| 2026-05-18 | TURNER WILLIAM V | Director | Open-market sale | 6,000 | $68.35 | $410.1K | Form 4 |
| 2026-05-18 | TURNER WILLIAM V | Director | Option exercise / conversion | 6,000 | $52.20 | $313.2K | Form 4 |
| 2026-05-06 | Baker Kevin L | Other | Option exercise / conversion (derivative) | 2,800 | $52.20 | $146.2K | Form 4 |
| 2026-05-06 | Baker Kevin L | Other | Open-market sale | 2,800 | $69.96 | $195.9K | Form 4 |
| 2026-05-06 | Baker Kevin L | Other | Option exercise / conversion | 2,800 | $52.20 | $146.2K | Form 4 |
| 2026-05-01 | Maples Mark A | Other | Option exercise / conversion (derivative) | 1,200 | $61.55 | $73.9K | Form 4 |
| 2026-05-01 | Maples Mark A | Other | Option exercise / conversion (derivative) | 1,187 | $57.98 | $68.8K | Form 4 |
| 2026-05-01 | Maples Mark A | Other | Open-market sale | 2,387 | $68.96 | $164.6K | Form 4 |
| 2026-05-01 | Maples Mark A | Other | Option exercise / conversion | 1,200 | $61.55 | $73.9K | Form 4 |
| 2026-05-01 | Maples Mark A | Other | Option exercise / conversion | 1,187 | $57.98 | $68.8K | Form 4 |
| 2026-05-01 | COPELAND REX A | Officer (Treasurer), Other | Option exercise / conversion (derivative) | 914 | $52.20 | $47.7K | Form 4 |
| 2026-05-01 | COPELAND REX A | Officer (Treasurer), Other | Option exercise / conversion (derivative) | 1,250 | $52.20 | $65.3K | Form 4 |
| 2026-05-01 | COPELAND REX A | Officer (Treasurer), Other | Open-market sale | 914 | $68.77 | $62.9K | Form 4 |
| 2026-05-01 | COPELAND REX A | Officer (Treasurer), Other | Option exercise / conversion | 914 | $52.20 | $47.7K | Form 4 |
| 2026-05-01 | COPELAND REX A | Officer (Treasurer), Other | Option exercise / conversion | 1,250 | $52.20 | $65.3K | Form 4 |
| 2026-04-30 | TURNER JOSEPH W | Director, Officer (President/CEO), 10% owner | Option exercise / conversion (derivative) | 6,000 | $52.20 | $313.2K | Form 4 |
| 2026-04-30 | TURNER JOSEPH W | Director, Officer (President/CEO), 10% owner | Open-market sale | 6,000 | $68.16 | $409.0K | Form 4 |
| 2026-04-30 | TURNER JOSEPH W | Director, Officer (President/CEO), 10% owner | Option exercise / conversion | 6,000 | $52.20 | $313.2K | Form 4 |
| 2026-04-30 | COPELAND REX A | Officer (Treasurer), Other | Option exercise / conversion (derivative) | 2,036 | $52.20 | $106.3K | Form 4 |
| 2026-04-30 | COPELAND REX A | Officer (Treasurer), Other | Open-market sale | 2,036 | $68.25 | $139.0K | Form 4 |
| 2026-04-30 | COPELAND REX A | Officer (Treasurer), Other | Option exercise / conversion | 2,036 | $52.20 | $106.3K | Form 4 |
| 2026-04-20 | Bugh John M | Other | Option exercise / conversion (derivative) | 2,500 | $41.30 | $103.3K | Form 4 |
| 2026-04-20 | Bugh John M | Other | Open-market sale | 2,500 | $67.59 | $169.0K | Form 4 |
| 2026-04-20 | Bugh John M | Other | Option exercise / conversion | 2,500 | $41.30 | $103.3K | Form 4 |
| 2026-04-14 | Hart Debra Mallonee | Director | Other acquisition or disposition | 13 | $67.28 | $875 | Form 4 |
| 2026-04-14 | BROWN JULIE A | Director | Other acquisition or disposition | 50 | $67.56 | $3.4K | Form 4 |
| 2026-04-14 | Pitt Douglas M | Director | Other acquisition or disposition | 54 | $67.28 | $3.6K | Form 4 |
| 2026-04-14 | Edwards Steven D | Director | Other acquisition or disposition | 26 | $67.97 | $1.8K | Form 4 |
| 2026-04-14 | CARLSON THOMAS J | Director | Other acquisition or disposition | 109 | $67.57 | $7.4K | Form 4 |
| 2026-04-14 | TURNER JOSEPH W | Director, Officer (President/CEO), 10% owner | Other acquisition or disposition | 17 | $67.57 | $1.1K | Form 4 |
Ask the chat about GSBC's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: GREAT SOUTHERN BANCORP INC (GSBC).
Last updated 2026-05-26 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.