Skip to content
sellModerate cluster of 410b5-1 plan

Michael Koralewski sold $1.6M of FSLR

Chief Supply Chain Officer at FIRST SOLAR, INC.. 7,000 shares at an average of $221.51, traded Aug 3, 2026, filed Aug 5, 2026.

Warning score
45
Value
$1.6M
7,000 shares
Holdings after
7,642
-48% from before
From 52-week low
+29%
low $180.05, close $232.73
From 52-week high
-27%
high $318.25, as of Aug 3, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $1.6M at market
    +25
  • Share of holdings sold
    Sold 48% of holdings
    +10
  • Cluster
    4 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

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.

FSLROct 9, 2026 · close 177.82
Since filing Aug 5, 2026: -24.9%SPY +1.3% · excess -26.2%

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 0001274494-26-000174, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 3, 2026SOpen-market sale
Common Stock10b5-1
-3,500$218.02$763k11,142Aug 5, 2026
Aug 3, 2026SOpen-market sale
Common Stock10b5-1
-3,500$225.00$788k7,642Aug 5, 2026

Related signals

Other insiders at FIRST SOLAR, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
11Weak
FSLRsell10b5-1
FIRST SOLAR, INC.
Markus Gloeckler
Chief Technology Officer
$139k
800 shares
-14%
11Weak
FSLRsell10b5-1
FIRST SOLAR, INC.
Markus Gloeckler
Chief Technology Officer
$160k
800 shares
-12%
20Weak
FSLRsell 4
FIRST SOLAR, INC.
Samantha L. Sloan
EVP, Corporate Affairs
$28k
127 shares
-6%
44Moderate
FSLRsell 410b5-1
FIRST SOLAR, INC.
Jason E. Dymbort
General Counsel and Secretary
$923k
3,700 shares
-40%
44Moderate
FSLRsell 410b5-1
FIRST SOLAR, INC.
Markus Gloeckler
Chief Technology Officer
$955k
4,254 shares
-39%
44Moderate
FSLRsell 410b5-1
FIRST SOLAR, INC.
Patrick James Buehler
Chief Product Officer
$906k
3,000 shares
-41%
45Moderate
FSLRsell 410b5-1
FIRST SOLAR, INC.
Caroline Stockdale
Chief People and Comm. Officer
$2.9M
10,628 shares
-31%
45Moderate
FSLRsell 410b5-1
FIRST SOLAR, INC.
Mark R Widmar
Chief Executive Officer
$1.9M
7,172 shares
-8%
45Moderate
FSLRsell 410b5-1
FIRST SOLAR, INC.
Mark R Widmar
Chief Executive Officer
$1.2M
4,815 shares
-5%
26Weak
FSLRsell 410b5-1
FIRST SOLAR, INC.
Kuntal Kumar Verma
Chief Manufacturing Officer
$146k
582 shares
-10%

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.

Michael Koralewski sold $1.6M of FSLR | InsiderTell