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BY · Byline Bancorp, Inc.

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$38.25 -0.08 (-0.21%) At close · Aug 21
Market Cap
$1.73B
Shares
45.19M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 206
Total Value: $937,598,622
Total Shares: 24,896,424

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 206 13F filers · Δ vs Mar 31, 2026
Top Holder
14.1%
Sep 2023 → Jun 2026 · range 9.8% – 15.5%
+0.9 pts
Top 5
39.0%
Sep 2023 → Jun 2026 · range 35.9% – 47.1%
+3.1 pts
Top 10
56.6%
Sep 2023 → Jun 2026 · range 52.3% – 65.6%
+4.3 pts
HHI
474
Sep 2023 → Jun 2026 · range 419 – 604
Broadly held+42

Quarterly Activity

vs Mar 31, 2026
New
35
Increased
79
Decreased
56
Sold Out
17
Unchanged
36
Holder count: +18
Institutional value: +18.7%
Shares held: -0.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 206
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1702750 CUSIP 124411109 13F (30d) 187 filings 187 filers Visit website Investor relations