Insider · CIK 0001739310
William G Kistner
Files at BY (BYLINE BANCORP, INC.). First filing Nov 22, 2023, latest Aug 20, 2026.
In brief
William G Kistner files SEC Form 4 as director at BY (BYLINE BANCORP, INC.). Since Nov 22, 2023, William G Kistner has reported 9 open-market buys worth $29k and 0 open-market sells worth $0, the latest filed on Aug 20, 2026.
After William G Kistner's past buys, the stock beat the S&P 500 by a median 3.8% over six months (n = 6), and 50% of those buys were ahead of the index at six months. InsiderTell labels that a positive record.
The newest scored trade: bought $3,830 of BY on Aug 19, 2026, filed Aug 20, 2026, scored 23 (weak). In the last 12 months: 3 buys worth $8,818 and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
BY: BYLINE BANCORP, INC.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 23Weak | BYLINE BANCORP, INC. | $3,830 100 shares | +1% | +50% from low-4% from high | |
| 10Weak | BYbuy BYLINE BANCORP, INC. | $3,197 100 shares | +1% | +30% from low-5% from high | |
| 15Weak | BYbuy BYLINE BANCORP, INC. | $1,791 65 shares | +0% | +18% from low-14% from high | |
| 19Weak | BYbuy BYLINE BANCORP, INC. | $1,542 60 shares | +0% | +12% from low-19% from high | |
| 44Moderate | BYLINE BANCORP, INC. | $4,147 164 shares | +1% | +9% from low-21% from high | |
| 18Weak | BYLINE BANCORP, INC. | $1,805 65 shares | +0% | - | |
| 10Weak | BYbuy BYLINE BANCORP, INC. | $1,528 50 shares | +0% | - | |
| 30Weak | BYLINE BANCORP, INC. | $1,265 60 shares | +0% | +27% from low-13% from high | |
| 32Weak | BYLINE BANCORP, INC. | $10k 500 shares | +4% | +22% from low-20% from high |
Transactions
Every row this insider has filed, 9 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +100 | $38.30 | $3,830 | 14,289 | Aug 20, 2026 |
| May 4, 2026 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +100 | $31.97 | $3,197 | 14,189 | May 4, 2026 |
| Oct 28, 2025 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +65 | $27.56 | $1,791 | 14,089 | Oct 28, 2025 |
| Aug 8, 2025 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +60 | $25.71 | $1,542 | 14,024 | Aug 11, 2025 |
| Jun 13, 2025 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +164 | $25.29 | $4,147 | 13,964 | Jun 13, 2025 |
| Mar 4, 2025 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +65 | $27.77 | $1,805 | 13,800 | Mar 6, 2025 |
| Nov 20, 2024 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +50 | $30.56 | $1,528 | 13,735 | Nov 21, 2024 |
| Mar 11, 2024 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +60 | $21.09 | $1,265 | 13,575 | Mar 12, 2024 |
| Nov 21, 2023 | BY BYLINE BANCORP, INC. | POpen-market purchase Common stockindirect: William G. Kistner Trust Date June 22, 1973 | +500 | $20.54 | $10k | 13,515 | Nov 22, 2023 |
Questions about William G Kistner
Answered from the filings on this page, as of the latest one.
Is William G Kistner buying or selling?
In the last 12 months William G Kistner reported 3 open-market buys worth $8,818 and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $3,830 of BY on Aug 19, 2026. Grants, option exercises and tax withholding are not counted.
How did William G Kistner's past buys perform?
Measured from the first close after each filing, the stock beat the S&P 500 by a median 3.8% over six months across 6 past buys, with 50% ahead of the index. Past results describe what happened; they do not predict the next trade.
Where does William G Kistner file Form 4?
William G Kistner has filed Form 4 at BY (BYLINE BANCORP, INC.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.