Skip to content
sellWeak cluster of 3

William Turner V sold $410k of GSBC

director at GREAT SOUTHERN BANCORP, INC.. 6,000 shares at an average of $68.35, traded May 18, 2026, filed May 19, 2026.

Warning score
31
Value
$410k
6,000 shares
Holdings after
199,112
-3% from before
From 52-week low
+28%
low $53.43, close $68.22
From 52-week high
-2%
high $69.34, as of May 18, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $410k at market
    +16
  • Share of holdings sold
    Sold 2.9% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +8.4%, 3m +17.4%, 6m -.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

GSBCOct 9, 2026 · close 76.75
Since filing May 19, 2026: +13.3%SPY +6.6% · excess +6.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001214659-26-006562, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 18, 2026MOption exercise
Common stock
+6,000$52.20$313k205,112May 19, 2026
May 18, 2026SOpen-market sale
Common stock
-6,000$68.35$410k199,112May 19, 2026
May 18, 2026MOption exercise
Option to purchasederivative
-6,000$52.20$313k0May 19, 2026

Related signals

Other insiders at GREAT SOUTHERN BANCORP, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
28Weak
GSBCsell
GREAT SOUTHERN BANCORP, INC.
Julie A Brown
director
$69k
851 shares
-11%
22Weak
GSBCsell 2
GREAT SOUTHERN BANCORP, INC.
Earl A Steinert Jr
director
$322k
4,500 shares
-0%
40Moderate
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Kevin L Baker
other
$196k
2,800 shares
-100%
39Weak
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Mark A Maples
other
$165k
2,387 shares
-100%
39Weak
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Rex A Copeland
Treasurer
$202k
2,950 shares
-11%
41Moderate
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Joseph W Turner
President/CEO
$409k
6,000 shares
-4%
39Weak
GSBCsell 4
GREAT SOUTHERN BANCORP, INC.
John M Bugh
other
$169k
2,500 shares
-58%
32Weak
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Rex A Copeland
Treasurer
$114k
1,797 shares
-7%
36Weak
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Thomas J Carlson
director
$43k
680 shares
-4%
25Weak
GSBCsell 5
GREAT SOUTHERN BANCORP, INC.
Earl A Steinert Jr
director
$95k
1,500 shares
-0%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

William Turner V sold $410k of GSBC | InsiderTell