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buyWeak

William G Kistner bought $3,197 of BY

director at BYLINE BANCORP, INC.. 100 shares at an average of $31.97, traded May 4, 2026, filed May 4, 2026.

Conviction score
10
Value
$3,197
100 shares
Holdings after
14,189
+1% from before
From 52-week low
+30%
low $24.38, close $31.81
From 52-week high
-5%
high $33.48, as of May 4, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $3k at market
    0
  • Relative to holdings
    Under 1% of holdings (0.7%)
    -5
  • Price context
    Near the top of the 52-week range
    0
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

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 +2.6%, 3m +24.6%, 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.

BYOct 9, 2026 · close 36.32
Since filing May 4, 2026: +14.2%SPY +8.9% · excess +5.3%

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 0001739310-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 4, 2026POpen-market purchase
Common stockindirect: William G. Kistner Trust Date June 22, 1973
+100$31.97$3,19714,189May 4, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
23Weak
BYbuy 2
BYLINE BANCORP, INC.
William G Kistner
director
$3,830
100 shares
+1%
23Weak
BYbuy 2
BYLINE BANCORP, INC.
Mary Jo S. Herseth
director
$12k
300 shares
+2%
62Notable
BYsell 4
BYLINE BANCORP, INC.
Roberto R Herencia
CHIEF EXECUTIVE OFFICER
$774k
19,750 shares
-5%
45Moderate
BYsell 4
BYLINE BANCORP, INC.
Dana Rose
CHIEF HUMAN RESOURCES OFFICER
$94k
2,421 shares
-17%
55Moderate
BYsell 4
BYLINE BANCORP, INC.
Perochena Antonio Del Valle
director, owner
$12M
300,000 shares
-3%
52Moderate
BYsell 4
BYLINE BANCORP, INC.
Mbg Investors I, L.p.
owner
$12M
300,000 shares
-3%
15Weak
BYbuy
BYLINE BANCORP, INC.
Mary Jo S. Herseth
director
$9,249
300 shares
+2%
31Weak
BYsell
BYLINE BANCORP, INC.
John Barkidjija
HEAD OF CRE & SPECIALTY FIN
$146k
4,509 shares
-19%
23Weak
BYbuy
BYLINE BANCORP, INC.
Brian F Doran
General Counsel
$25k
750 shares
-
15Weak
BYbuy
BYLINE BANCORP, INC.
Phillip R. Cabrera
director
$5,244
169 shares
+4%

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 G Kistner bought $3,197 of BY | InsiderTell