Byline Bancorp
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.
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
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$14.2M |
| 2 |
AQR Capital Management
Greenwich,
Connecticut
|
+$8.81M |
| 3 |
N
Nuveen
Charlotte,
North Carolina
|
+$6.23M |
| 4 |
State Street
Boston,
Massachusetts
|
+$4.42M |
| 5 |
JP Morgan Chase
New York
|
+$3.91M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$13.6M |
| 2 |
NCGI
Next Century Growth Investors
Plymouth,
Minnesota
|
-$6.62M |
| 3 |
Millennium Management
New York
|
-$3.77M |
| 4 |
Jane Street
New York
|
-$3.64M |
| 5 |
ACM
Ararat Capital Management
Westport,
Connecticut
|
-$2.96M |
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.