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Livermore
Livermore
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Byline Bancorp, Inc.

BY
Exchange
NYSE
Industry
State Commercial Banks
SEC CIK
0001702750

In the last 90 days, Byline Bancorp, Inc. insiders filed 2 open-market purchases and 3 sales; 208 institutions reported holding it in 13F filings for Q2 2026, worth $938.6M in total; no superinvestor holds it.

Holders of 5% or more of BY

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Byline Bancorp, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of BY
HolderLatest formStakeChangeFirst filedLatest filingFiling
MBG Investors I, L.P.13G/A26.70%11.8M shares–Feb 13, 20251 filingFeb 13, 2025SEC
Dimensional Fund Advisors LP13G5.10%2.32M sharesNewOct 9, 20251 filingOct 9, 2025SEC
BlackRock, Inc.13G5.02%2.30M shares+0.42 ppfrom 4.60%Jul 16, 20252 filingsOct 17, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

5 Schedule 13D and 13G filings on Byline Bancorp, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on BY
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 17, 20256:40 PM ETBlackRock, Inc.13G5.02%2.30M shares+0.42 ppfrom 4.60%Sep 30, 2025SEC
Oct 9, 20251:48 PM ETDimensional Fund Advisors LP13G5.10%2.32M sharesNewSep 30, 2025SEC
Jul 16, 20257:02 PM ETBlackRock, Inc.13G/A4.60%2.13M shares–Below 5%Jun 30, 2025SEC
Jul 7, 20254:10 PM ETEstate of Daniel L. Goodwin13G/A0.00%13.6K shares–Below 5%Jun 30, 2025SEC
Feb 13, 20255:02 PM ETMBG Investors I, L.P.and 1 other13G/A26.70%11.8M shares–Feb 12, 2025SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Byline Bancorp, Inc. shares.

No Form 144 notices for Byline Bancorp, Inc. are on file.