Who owns Byline Bancorp, Inc.?
Institutional ownership of BY from SEC Form 13F filings across 140 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
140
13F holders
$646.5M
value, 2026 filers
33.9%
of shares outstanding (15.4M sh)
27
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of BY's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3.5M | $132.2M | 0.0% | 7.7% | +6.6% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | $44.9M | 0.0% | 2.6% | -52.7% |
| 3 | AMERICAN CENTURY COMPANIES INC | 1.0M | $38.0M | 0.0% | 2.2% | +11.6% |
| 4 | FEDERATED HERMES, INC. | 857,825 | $32.3M | 0.0% | 1.9% | +37.4% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 810,208 | $30.5M | 0.0% | 1.8% | +2.8% |
| 6 | JPMORGAN CHASE & CO | 507,652 | $19.1M | 0.0% | 1.1% | +10.5% |
| 7 | WELLINGTON MANAGEMENT GROUP LLP | 488,460 | $18.4M | 0.0% | 1.1% | -52.3% |
| 8 | Nuveen, LLC | 437,302 | $16.5M | 0.0% | 1% | +2.9% |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 362,683 | $13.7M | 0.0% | 0.8% | +8.0% |
| 10 | TWO SIGMA INVESTMENTS, LP | 350,081 | $13.2M | 0.0% | 0.8% | +69.2% |
| 11 | MORGAN STANLEY | 301,094 | $11.3M | 0.0% | 0.7% | +6.8% |
| 12 | NORTHERN TRUST CORP | 295,900 | $11.1M | 0.0% | 0.7% | +11.1% |
| 13 | Sixth Street Partners Management Company, L.P.NEW | 269,067 | $10.1M | 1.7% | 0.6% | new |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 269,067 | $10.1M | 0.0% | 0.6% | +0.2% |
| 15 | MILLENNIUM MANAGEMENT LLC | 250,593 | $9.4M | 0.0% | 0.6% | -12.9% |
| 16 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 245,280 | $9.2M | 0.0% | 0.5% | +239.8% |
| 17 | Qube Research & Technologies Ltd | 219,168 | $8.3M | 0.0% | 0.5% | -35.8% |
| 18 | GOLDMAN SACHS GROUP INC | 212,551 | $8.0M | 0.0% | 0.5% | -29.0% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 210,966 | $7.9M | 0.0% | 0.5% | +2.0% |
| 20 | FMR LLC | 182,355 | $6.9M | 0.0% | 0.4% | -77.9% |
| 21 | Bank of New York Mellon Corp | 167,130 | $6.3M | 0.0% | 0.4% | +2.3% |
| 22 | Creative Planning | 163,467 | $6.2M | 0.0% | 0.4% | +14.2% |
| 23 | Thrivent Financial for Lutherans | 157,091 | $5,916 | 0.0% | 0.3% | +76.1% |
| 24 | BANK OF AMERICA CORP /DE/ | 151,407 | $5.7M | 0.0% | 0.3% | +11.5% |
| 25 | ZACKS INVESTMENT MANAGEMENT | 139,641 | $5.3M | 0.0% | 0.3% | +6.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.