SEC Form 4
Byline Bancorp, Inc. (BY) insider trading
In the 12 months to Oct 23, 2026, 6 BY insiders reported open-market sales of $25.1M across 6 filings; 4 insiders bought $59.7K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $25.1M
- 6 filings · 6 insiders
- Open-market purchases
- $59.7K
- 7 filings
Who traded BY, and when
- Purchase
- Sale
BY daily close from Oct 23, 2025 to Oct 23, 2026, between $26.44 and $39.78, last $38.40. 6 sale and 7 purchase filings by 10 insiders, marked at their filing dates. MBG INVESTORS I, L.P., 10% owner: sold $11.7M across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026. Valle Perochena Antonio Del, Director: sold $11.7M across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026. Roberto R. Herencia, CHIEF EXECUTIVE OFFICER: sold $774.3K across 1 filing, first filed Aug 14, 2026, last Aug 14, 2026. Thomas Abraham, PRESIDENT, SBC: sold $629.1K across 1 filing, first filed Oct 29, 2025, last Oct 29, 2025. John Barkidjija, HEAD OF CRE & SPECIALTY FIN: sold $145.8K across 1 filing, first filed Mar 2, 2026, last Mar 2, 2026. Dana Rose, CHIEF HUMAN RESOURCES OFFICER: sold $94.4K across 1 filing, first filed Aug 12, 2026, last Aug 12, 2026. Brian F. Doran, General Counsel: bought $24.8K across 1 filing, first filed Feb 17, 2026, last Feb 17, 2026. Mary Jo S. Herseth, Director: bought $20.8K across 2 filings, first filed Mar 16, 2026, last Aug 20, 2026. William G. Kistner, Director: bought $8.8K across 3 filings, first filed Oct 28, 2025, last Aug 20, 2026. Phillip R. Cabrera, Director: bought $5.2K across 1 filing, first filed Jan 29, 2026, last Jan 29, 2026.
Largest mark · tap a row for others
MBG INVESTORS I, L.P. · 10% owner
Sale $11,730,000
300,000 shares at $39.10 avg
Filed Aug 11, 2026 · traded Aug 7
Close on filing date $38.78
MBG INVESTORS I, L.P. · 10% owner
10% owner
$11.7M soldValle Perochena Antonio Del · Director
Director
$11.7M soldRoberto R. Herencia · CHIEF EXECUTIVE OFFICER
CHIEF EXECUTIVE OFFICER
$774.3K soldThomas Abraham · PRESIDENT, SBC
PRESIDENT, SBC
$629.1K soldJohn Barkidjija · HEAD OF CRE & SPECIALTY FIN
HEAD OF CRE & SPECIALTY FIN
$145.8K soldDana Rose · CHIEF HUMAN RESOURCES OFFICER
CHIEF HUMAN RESOURCES OFFICER
$94.4K soldBrian F. Doran · General Counsel
General Counsel
$24.8K boughtMary Jo S. Herseth · Director
Director
$20.8K boughtWilliam G. Kistner · Director
Director
$8.8K boughtPhillip R. Cabrera · Director
Director
$5.2K boughtHas Byline Bancorp, Inc.'s CEO sold stock?
Yes. Roberto R. Herencia (CEO) sold 19,750 shares ($774.3K) in Aug 2026.
Open-market trades
13 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| MBG INVESTORS I, L.P. | 10% owner | $11.7M | — | 1 | — | |
| Valle Perochena Antonio Del | Director | $11.7M | — | 1 | — | |
| Roberto R. Herencia | CHIEF EXECUTIVE OFFICER | $774.3K | — | 1 | — | |
| Thomas Abraham | PRESIDENT, SBC | $629.1K | — | 1 | — | |
| John Barkidjija | HEAD OF CRE & SPECIALTY FIN | $145.8K | — | 1 | — | |
| Dana Rose | CHIEF HUMAN RESOURCES OFFICER | $94.4K | — | 1 | — | |
| Brian F. Doran | General Counsel | — | $24.8K | 1 | — | |
| Mary Jo S. Herseth | Director | — | $20.8K | 2 | — | |
| William G. Kistner | Director | — | $8.8K | 3 | — | |
| Phillip R. Cabrera | Director | — | $5.2K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | William G. Kistner Director | Purchase | 100 | $38.30 | $3.8K | 14,289 | |
traded | Mary Jo S. Herseth Director | Purchase | 300 | $38.40 | $11.5K | 19,100 | |
traded | Roberto R. Herencia CHIEF EXECUTIVE OFFICER | Sale | 19,750 | $39.21 | $774.3K | 411,643 | |
traded | Dana Rose CHIEF HUMAN RESOURCES OFFICER | Sale | 2,421 | $39.00 | $94.4K | 11,605 | |
traded | Valle Perochena Antonio Del Director | Sale | 300,000 | $39.10 | $11.7M | 11,535,145 | |
traded | MBG INVESTORS I, L.P. 10% owner | Sale | 300,000 | $39.10 | $11.7M | 11,535,145 | |
traded | William G. Kistner Director | Purchase | 100 | $31.97 | $3.2K | 14,189 | |
traded | Mary Jo S. Herseth Director | Purchase | 300 | $30.83 | $9.2K | 18,800 | |
traded | John Barkidjija HEAD OF CRE & SPECIALTY FIN | Sale | 4,509 | $32.33 | $145.8K | 19,243 | |
traded | Brian F. Doran General Counsel | Purchase | 750 | $33.13 | $24.8K | 750 | |
traded | Phillip R. Cabrera Director | Purchase | 169 | $31.03 | $5.2K | 4,129 | |
traded | Thomas Abraham PRESIDENT, SBC | Sale | 23,400 | $26.89 | $629.1K | 38,882 | |
traded | William G. Kistner Director | Purchase | 65 | $27.56 | $1.8K | 14,089 |
GET /stocks/filings/vX/form-4?tickers=BY&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"BY"
],
"issuer_cik": "0001702750",
"owner_cik": "0001772766",
"accession_number": "0001772766-26-000004",
"form_type": "4",
"filing_date": "2026-08-20",
"period_of_report": "2026-08-19",
"issuer_name": "BYLINE BANCORP, INC.",
"issuer_trading_symbol": "BY",
"owner_name": "HERSETH MARY JO S.",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-19",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 300,
"transaction_price_per_share": 38.395,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 19100,
"transaction_value": 11518.500000000002,
"direct_or_indirect": "I",
"nature_of_ownership": "The Herseth Family Revocable Trust Dated 12/02/25"
},
{
"tickers": [
"BY"
],
"issuer_cik": "0001702750",
"owner_cik": "0001739310",
"accession_number": "0001739310-26-000004",
"form_type": "4",
"filing_date": "2026-08-20",
"period_of_report": "2026-08-19",
"issuer_name": "BYLINE BANCORP, INC.",
"issuer_trading_symbol": "BY",
"owner_name": "KISTNER WILLIAM G",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-19",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 100,
"transaction_price_per_share": 38.3,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 14289,
"transaction_value": 3829.9999999999995,
"direct_or_indirect": "I",
"nature_of_ownership": "William G. Kistner Trust Date June 22, 1973"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 53 records
- Tax withholding23 records
- Grants and awards27 records
- Other3 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for BY every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.