Byline Bancorp
BY · NYSE
$37.62+$0.54 (+1.46%)TodayMarket closed ·
Prev close $37.08
Who owns BY
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 52.8% of BY’s shares.
- MBG Investors I, L.P.25.5%
- BlackRock Institutional Trust Company, N.A.5.7%
- Dimensional Fund Advisors, L.P.5.4%
- T. Rowe Price Investment Management, Inc.3.3%
- Next 6 largest institutions12.8%
- All other shareholders47.2%
| Holder | Shares | % of shares |
|---|---|---|
| MBG Investors I, L.P. | 11.54M | 25.53% |
| BlackRock Institutional Trust Company, N.A. | 2.59M | 5.72% |
| Dimensional Fund Advisors, L.P. | 2.42M | 5.37% |
| T. Rowe Price Investment Management, Inc. | 1.50M | 3.31% |
| Vanguard Capital Management, LLC | 1.19M | 2.64% |
| State Street Investment Management (US) | 1.09M | 2.41% |
| American Century Investment Management, Inc. | 1.01M | 2.23% |
| Boston Partners | 883.69K | 1.96% |
| AQR Capital Management, LLC | 813.86K | 1.80% |
| Geode Capital Management, L.L.C. | 810.21K | 1.79% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Avantis US Small Cap Value ETF | 893.54K | 1.98% |
| iShares Russell 2000 ETF | 850.60K | 1.88% |
| Vanguard Total Stock Market Index Fund | 790.43K | 1.75% |
| T. Rowe Price Small Cap Value Fund | 647.84K | 1.43% |
| Federated Hermes MDT Small Cap Core Fund | 645.95K | 1.43% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $18.55K (3 trades) and sold $24.33M (4 trades) of BY on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| HERSETH MARY JO S. | Buy | 300 | $11.52K |
| KISTNER WILLIAM G | Buy | 100 | $3.83K |
| HERENCIA ROBERTO R | Sale | 19.75K | $774.31K |
| Rose Dana | Sale | 2.42K | $94.42K |
| MBG INVESTORS I, L.P. | Sale | 300.00K | $11.73M |
| DEL VALLE PEROCHENA ANTONIO | Sale | 300.00K | $11.73M |
| Ptacin Brogan | Option exercise | 9.45K | — |
| Ptacin Brogan | Other | 9.45K | $374.32K |
| Ptacin Brogan | Award | 9.45K | $120.01K |
| Hugues Velez Margarita | Award | 1.53K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.42M
- Days to cover
- 5.38
- % of shares outstanding
- 3.14%
- Average daily volume
- 263.73K
- Change since last report
- +22.1%
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