Great Southern Bancorp, Inc. (GSBC) Insider Trading
Over the last 3 months, GSBC insiders made 0 open-market buys and 1 sale, a net sale of -$69K (SEC Form 4). Over the last 6 months, 105 institutions increased and 83 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
1
Net (3m)
-$68.9K
Insider trades by month Buys Sells
Dec
Jan
Feb
Apr
May
Aug
Context3-month price +10.5%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 20, 2026 | BROWN JULIE Adirector | Sell | 851 | $81.00 |
| May 26, 2026 | STEINERT EARL A JRdirector | Option | 1,000 | $61.55 |
| May 26, 2026 | STEINERT EARL A JRdirector | Option | 2,000 | $60.15 |
| May 26, 2026 | STEINERT EARL A JRdirector | Option | 1,500 | $57.98 |
| May 26, 2026 | STEINERT EARL A JRdirector | Sell | 4,500 | $71.62 |
| May 19, 2026 | TURNER WILLIAM Vdirector | Sell | 6,000 | $68.35 |
| May 19, 2026 | TURNER WILLIAM Vdirector | Option | 6,000 | $52.20 |
| May 6, 2026 | Baker Kevin Lother: Vice President of Subsidiary | Option | 2,800 | $52.20 |
| May 6, 2026 | Baker Kevin Lother: Vice President of Subsidiary | Sell | 2,800 | $69.96 |
| May 4, 2026 | Maples Mark Aother: Vice President of Subsidiary | Option | 1,187 | $57.98 |
| May 4, 2026 | Maples Mark Aother: Vice President of Subsidiary | Sell | 2,387 | $68.95 |
| May 4, 2026 | Maples Mark Aother: Vice President of Subsidiary | Option | 1,200 | $61.55 |
| May 1, 2026 | TURNER JOSEPH Wdirector, 10 percent owner, officer: President/CEO | Option | 6,000 | $52.20 |
| May 1, 2026 | TURNER JOSEPH Wdirector, 10 percent owner, officer: President/CEO | Sell | 6,000 | $68.16 |
| May 1, 2026 | COPELAND REX Aofficer, other: Treasurer | Sell | 914 | $68.77 |
| May 1, 2026 | COPELAND REX Aofficer, other: Treasurer | Option | 1,250 | $52.20 |
| May 1, 2026 | COPELAND REX Aofficer, other: Treasurer | Sell | 2,036 | $68.25 |
| May 1, 2026 | COPELAND REX Aofficer, other: Treasurer | Option | 2,036 | $52.20 |
| May 1, 2026 | COPELAND REX Aofficer, other: Treasurer | Option | 914 | $52.20 |
| Apr 21, 2026 | Bugh John Mother: Vice President of Subsidiary | Sell | 2,500 | $67.59 |
| Apr 21, 2026 | Bugh John Mother: Vice President of Subsidiary | Option | 2,500 | $41.30 |
| Feb 24, 2026 | Ausburn Kevin Rdirector | Option | 5,000 | $51.40 |
| Feb 24, 2026 | Ausburn Kevin Rdirector | Option | 2,000 | $52.20 |
| Feb 6, 2026 | COPELAND REX Aofficer, other: Treasurer | Sell | 1,797 | $63.67 |
| Feb 6, 2026 | COPELAND REX Aofficer, other: Treasurer | Option | 1,797 | $41.30 |
| Feb 4, 2026 | CARLSON THOMAS Jdirector | Sell | 680 | $63.17 |
| Feb 4, 2026 | STEINERT EARL A JRdirector | Sell | 1,500 | $63.49 |
| Feb 4, 2026 | STEINERT EARL A JRdirector | Option | 1,000 | $41.74 |
| Feb 4, 2026 | STEINERT EARL A JRdirector | Option | 500 | $53.22 |
| Jan 29, 2026 | TURNER WILLIAM Vdirector | Sell | 6,000 | $59.70 |
Source: GSBC SEC Form 4 filings, latest Aug 20, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their GSBC positions over the last 6 months (SEC Form 13F).
Increased
105
New positions
47
Reduced
83
Sold out
11
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 773K | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 739K | May 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 699K | Aug 11, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 690K | May 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 398K | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 381K | Aug 13, 2026 |
| STATE STREET CORP | Increased | 367K | Aug 7, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 338K | Aug 12, 2026 |
| STATE STREET CORP | Increased | 319K | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 308K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 251K | Aug 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 244K | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 190K | May 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 171K | Aug 13, 2026 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Increased | 154K | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.