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Byline Bancorp
BY

174 hedge funds and large institutions have $675M invested in Byline Bancorp in 2025 Q3 according to their latest regulatory filings, with 26 funds opening new positions, 75 increasing their positions, 49 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed

53% more repeat investments, than reductions

Existing positions increased: 75 | Existing positions reduced: 49

24% more first-time investments, than exits

New positions opened: 26 | Existing positions closed: 21

5% more capital invested

Capital invested by funds: $640M → $675M (+$35M)

3% more funds holding

Funds holding: 169 → 174 (+5)

1.17% more ownership

Funds ownership: 51.92% → 53.09% (+1.2%)

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
174
Holders Change
+5
Holders Change %
+2.96%
% of All Funds
2.28%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
26
Increased
75
Reduced
49
Closed
21
Calls
–
Puts
$13K
Net Calls
-$13K
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$14.2M
2
AQR Capital Management
AQR Capital Management
Connecticut
+$8.81M
3
N
Nuveen
North Carolina
+$6.23M
4
State Street
State Street
Massachusetts
+$4.42M
5
JP Morgan Chase
JP Morgan Chase
New York
+$3.91M

Top Sellers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
-$13.6M
2
NCGI
Next Century Growth Investors
Minnesota
-$6.62M
3
Millennium Management
Millennium Management
New York
-$3.77M
4
Jane Street
Jane Street
New York
-$3.64M
5
ACM
Ararat Capital Management
Connecticut
-$2.96M
Name Holding Trade Value Shares
Change 		Change in
Stake
EF
26
Empowered Funds
Pennsylvania
$4.95M +$304K +10,881 +6%
Bank of New York Mellon
27
Bank of New York Mellon
New York
$4.76M +$111K +3,968 +2%
Goldman Sachs
28
Goldman Sachs
New York
$4.65M -$844K -30,251 -15%
SEI Investments
29
SEI Investments
Pennsylvania
$4.63M -$195K -7,000 -4%
ECA
30
Endeavour Capital Advisors
Connecticut
$4.35M +$190K +6,817 +5%
UBS Group
31
UBS Group
Switzerland
$3.91M +$2.22M +79,586 +129%
CSS
32
Cubist Systematic Strategies
Connecticut
$3.88M +$661K +23,689 +20%
CRC
33
Curi RMB Capital
Illinois
$3.83M – – –
BCWM
34
Bartlett & Co Wealth Management
Ohio
$3.72M – – –
Citadel Advisors
35
Citadel Advisors
Florida
$3.65M -$2.09M -75,059 -36%
MCA
36
Mendon Capital Advisors
Florida
$3.47M – – –
First Trust Advisors
37
First Trust Advisors
Illinois
$3.27M -$1.27M -45,618 -28%
Tudor Investment Corp
38
Tudor Investment Corp
Connecticut
$3.24M +$809K +29,008 +33%
Jacobs Levy Equity Management
39
Jacobs Levy Equity Management
New Jersey
$3.21M -$33.4K -1,199 -1%
Bank of America
40
Bank of America
North Carolina
$3.06M +$331K +11,875 +12%
Creative Planning
41
Creative Planning
Kansas
$2.96M +$888K +31,851 +42%
ECM
42
ExodusPoint Capital Management
New York
$2.86M -$1.16M -41,440 -29%
AllianceBernstein
43
AllianceBernstein
Tennessee
$2.66M -$434K -15,550 -14%
Arrowstreet Capital
44
Arrowstreet Capital
Massachusetts
$2.65M -$260K -9,318 -9%
DA
45
Denali Advisors
California
$2.64M +$161K +5,755 +6%
BGIM
46
Brandywine Global Investment Management
Pennsylvania
$2.62M -$98.1K -3,517 -4%
Renaissance Technologies
47
Renaissance Technologies
New York
$2.4M -$1.16M -41,600 -32%
William Blair & Company
48
William Blair & Company
Illinois
$2.19M +$1.99M +71,401 +925%
BGM
49
Burkehill Global Management
New York
$2.08M – – –
Thrivent Financial for Lutherans
50
Thrivent Financial for Lutherans
Minnesota
$1.97M +$484K +17,335 +32%
1
2
3 4 5

BY Hedge Fund Activity: Q3 2025 in Review

174 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Byline Bancorp (BY) for Q3 2025, worth a combined $675M — up 5.5% from $640M a quarter earlier.

Buyers outnumbered sellers: 26 funds opened new BY positions and 21 closed out — a net gain of 5 holders — while 75 added to existing stakes and 49 trimmed.

The largest buyer was BlackRock, adding an estimated $14.2M. The largest seller was Wellington Management Group, cutting an estimated $13.6M.

  • 174 institutional investors held Byline Bancorp (BY) as of Q3 2025, up from 169 in Q2 2025.
  • Funds reported $675M of Byline Bancorp stock for Q3 2025, up 5.5% quarter-over-quarter.
  • 26 funds opened new Byline Bancorp positions in Q3 2025 and 21 closed out, a net change of +5 holders.
  • The largest Byline Bancorp buyer in Q3 2025 was BlackRock, an estimated $14.2M added.
  • The largest Byline Bancorp seller in Q3 2025 was Wellington Management Group, an estimated $13.6M sold.

Based on aggregated 13F filings for Q3 2025.