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Byline Bancorp
BY

169 hedge funds and large institutions have $640M invested in Byline Bancorp in 2025 Q2 according to their latest regulatory filings, with 36 funds opening new positions, 67 increasing their positions, 42 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed

157% more first-time investments, than exits

New positions opened: 36 | Existing positions closed: 14

60% more repeat investments, than reductions

Existing positions increased: 67 | Existing positions reduced: 42

21% more capital invested

Capital invested by funds: $528M → $640M (+$112M)

14% more funds holding

Funds holding: 148 → 169 (+21)

6.72% more ownership

Funds ownership: 45.2% → 51.92% (+6.7%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $13K

Holders
169
Holders Change
+21
Holders Change %
+14.19%
% of All Funds
2.22%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
36
Increased
67
Reduced
42
Closed
14
Calls
–
Puts
$13K
Net Calls
-$13K
Net Calls Change
-$13K

Top Buyers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
+$33.2M
2
Millennium Management
Millennium Management
New York
+$11.1M
3
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
+$7.68M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$6.69M
5
MCM
Maltese Capital Management
New York
+$6.59M

Top Sellers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
-$12.1M
2
NCGI
Next Century Growth Investors
Minnesota
-$2.11M
3
ACB
Aristotle Capital Boston
Massachusetts
-$1.31M
4
Geode Capital Management
Geode Capital Management
Massachusetts
-$975K
5
Northern Trust
Northern Trust
Illinois
-$676K
Name Holding Trade Value Shares
Change 		Change in
Stake
Goldman Sachs
26
Goldman Sachs
New York
$5.29M +$985K +38,369 +24%
SEI Investments
27
SEI Investments
Pennsylvania
$4.65M -$150K -5,824 -3%
Bank of New York Mellon
28
Bank of New York Mellon
New York
$4.48M -$100K -3,902 -2%
EF
29
Empowered Funds
Pennsylvania
$4.48M +$525K +20,448 +14%
AQR Capital Management
30
AQR Capital Management
Connecticut
$4.42M +$700K +27,265 +20%
First Trust Advisors
31
First Trust Advisors
Illinois
$4.38M +$2.02M +78,870 +93%
Jane Street
32
Jane Street
New York
$4.23M +$145K +5,666 +4%
ECA
33
Endeavour Capital Advisors
Connecticut
$4.01M +$3.85M +150,000 New
ECM
34
ExodusPoint Capital Management
New York
$3.86M +$2.15M +83,878 +138%
Morgan Stanley
35
Morgan Stanley
New York
$3.69M +$443K +17,261 +14%
CRC
36
Curi RMB Capital
Illinois
$3.69M +$335K +13,041 +10%
BCWM
37
Bartlett & Co Wealth Management
Ohio
$3.59M – – –
Renaissance Technologies
38
Renaissance Technologies
New York
$3.43M -$2.57K -100 -0.1%
MCA
39
Mendon Capital Advisors
Florida
$3.34M – – –
Jacobs Levy Equity Management
40
Jacobs Levy Equity Management
New Jersey
$3.13M -$9.73K -379 -0.3%
CSS
41
Cubist Systematic Strategies
Connecticut
$3.1M +$1.87M +72,977 +169%
AllianceBernstein
42
AllianceBernstein
Tennessee
$2.98M +$1.03M +40,205 +56%
BFC
43
Banc Funds Company
Illinois
$2.88M -$359K -14,000 -12%
Arrowstreet Capital
44
Arrowstreet Capital
Massachusetts
$2.8M +$470K +18,301 +21%
Alyeska Investment Group
45
Alyeska Investment Group
Illinois
$2.67M +$2.57M +100,000 New
Bank of America
46
Bank of America
North Carolina
$2.63M +$1.06M +41,359 +72%
BGIM
47
Brandywine Global Investment Management
Pennsylvania
$2.62M -$100K -3,900 -4%
Two Sigma Advisers
48
Two Sigma Advisers
New York
$2.6M +$1.19M +46,500 +91%
UBS AM
49
UBS AM
Illinois
$2.43M +$376K +14,644 +19%
DA
50
Denali Advisors
California
$2.39M +$1.4M +54,467 +156%
1
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BY Hedge Fund Activity: Q2 2025 in Review

169 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Byline Bancorp (BY) for Q2 2025, worth a combined $640M — up 21% from $528M a quarter earlier.

Buyers outnumbered sellers: 36 funds opened new BY positions and 14 closed out — a net gain of 22 holders — while 67 added to existing stakes and 42 trimmed.

The largest buyer was Wellington Management Group, adding an estimated $33.2M. The largest seller was BlackRock, cutting an estimated $12.1M.

  • 169 institutional investors held Byline Bancorp (BY) as of Q2 2025, up from 148 in Q1 2025.
  • Funds reported $640M of Byline Bancorp stock for Q2 2025, up 21% quarter-over-quarter.
  • 36 funds opened new Byline Bancorp positions in Q2 2025 and 14 closed out, a net change of +22 holders.
  • The largest Byline Bancorp buyer in Q2 2025 was Wellington Management Group, an estimated $33.2M added.
  • The largest Byline Bancorp seller in Q2 2025 was BlackRock, an estimated $12.1M sold.

Based on aggregated 13F filings for Q2 2025.