BYLINE BANCORP INC (BY) Top Institutional Shareholders
BYLINE BANCORP INC (BY) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $750.03M in BY holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of BY tracked by InsiderSet, reporting ownership valued at approximately $104.02M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $115.52M, representing an estimated gain of +11.05% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 55% of the total disclosed BY value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Dimensional Fund Advisors Lp, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in BYLINE BANCORP INC (BY).
This page ranks the largest institutional BY shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
185
Total Reported Value
$750.03M
Largest Holder
Blackrock, Inc.
Largest Position
$104.02M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
177
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,294,923 | $104,020,725 | $115,520,000 | +$11,499,275 | +11.05% | |
| Dimensional Fund Advisors Lp | 0.02% | 2,366,600 | $74,712,927 | $82,972,996 | +$8,260,069 | +11.06% | |
| Vanguard Capital Management Llc | 0.00% | 1,258,599 | $39,733,970 | $44,126,481 | +$4,392,511 | +11.05% | |
| State Street Corp | 0.00% | 1,031,062 | $32,550,627 | $36,149,034 | +$3,598,407 | +11.05% | |
| Wellington Management Group Llp | 0.01% | 1,023,948 | $32,326,039 | $35,899,617 | +$3,573,578 | +11.05% | |
| Boston Partners | 0.03% | 918,449 | $29,067,153 | $32,200,822 | +$3,133,669 | +10.78% | |
| American Century Companies Inc | 0.01% | 905,189 | $28,576,817 | $31,735,926 | +$3,159,109 | +11.05% | |
| Fmr Llc | 0.00% | 826,069 | $26,079,000 | $28,961,979 | +$2,882,979 | +11.05% | |
| Geode Capital Management, Llc | 0.00% | 788,033 | $24,882,057 | $27,628,437 | +$2,746,380 | +11.04% | |
| Aristotle Capital Boston, Llc | 1.32% | 674,784 | $21,302,931 | $23,657,927 | +$2,354,996 | +11.05% | |
| Aqr Capital Management Llc | 0.01% | 665,386 | $21,006,234 | $23,328,433 | +$2,322,199 | +11.05% | |
| Federated Hermes, Inc. | 0.03% | 624,421 | $19,712,971 | $21,892,200 | +$2,179,229 | +11.05% | |
| Ararat Capital Management Lp | 11.09% | 623,772 | $19,692,482 | $21,869,446 | +$2,176,964 | +11.05% | |
| Nuveen, Llc | 0.00% | 424,867 | $13,413,052 | $14,895,837 | +$1,482,785 | +11.05% | |
| Bridgeway Capital Management, Llc | 0.27% | 423,525 | $13,370,684 | $14,848,787 | +$1,478,103 | +11.05% | |
| Qube Research & Technologies Ltd | 0.02% | 341,527 | $10,782,007 | $11,973,937 | +$1,191,930 | +11.05% | |
| Vanguard Portfolio Management Llc | 0.00% | 335,839 | $10,602,437 | $11,774,515 | +$1,172,078 | +11.05% | |
| Goldman Sachs Group Inc | 0.00% | 299,441 | $9,453,353 | $10,498,401 | +$1,045,048 | +11.05% | |
| Millennium Management Llc | 0.01% | 287,664 | $9,081,552 | $10,085,500 | +$1,003,948 | +11.05% | |
| Morgan Stanley | 0.00% | 281,991 | $8,902,510 | $9,886,604 | +$984,094 | +11.05% | |
| Charles Schwab Investment Management Inc | 0.00% | 268,447 | $8,474,872 | $9,411,752 | +$936,880 | +11.05% | |
| Northern Trust Corp | 0.00% | 266,412 | $8,410,627 | $9,340,405 | +$929,778 | +11.05% | |
| Assenagon Asset Management S.A. | 0.01% | 227,317 | $7,176,398 | $7,969,734 | +$793,336 | +11.05% | |
| Maltese Capital Management Llc | 1.37% | 220,615 | $6,964,816 | $7,734,762 | +$769,946 | +11.05% | |
| Two Sigma Investments, Lp | 0.01% | 206,954 | $6,533,538 | $7,255,807 | +$722,269 | +11.05% | |
| Vanguard Fiduciary Trust Co | 0.00% | 206,911 | $6,532,180 | $7,254,300 | +$722,120 | +11.05% | |
| Empowered Funds, Llc | 0.04% | 202,525 | $6,393,714 | $7,100,527 | +$706,813 | +11.05% | |
| Detalus Advisors, Llc | 1.44% | 199,774 | $6,306,865 | $7,004,076 | +$697,211 | +11.05% | |
| Endeavour Capital Advisors Inc | 1.29% | 180,642 | $5,702,868 | $6,333,309 | +$630,441 | +11.05% | |
| Denali Advisors Llc | 0.59% | 167,416 | $5,285,323 | $5,869,605 | +$584,282 | +11.05% | |
| Bank Of New York Mellon Corp | 0.00% | 163,344 | $5,156,782 | $5,726,841 | +$570,059 | +11.05% | |
| Ubs Group Ag | 0.00% | 158,435 | $5,001,793 | $5,554,731 | +$552,938 | +11.05% | |
| Curi Capital, Llc | 0.08% | 144,258 | $4,554,229 | $5,057,685 | +$503,456 | +11.05% | |
| Creative Planning | 0.00% | 143,176 | $4,520,066 | $5,019,751 | +$499,685 | +11.05% | |
| Bartlett & Co. Wealth Management Llc | 0.05% | 134,158 | $4,298,422 | $4,703,579 | +$405,157 | +9.43% | |
| Bank Of America Corp | 0.00% | 135,836 | $4,288,342 | $4,762,410 | +$474,068 | +11.05% | |
| Zacks Investment Management | 0.03% | 131,005 | $4,135,849 | $4,593,035 | +$457,186 | +11.05% | |
| Sei Investments Co | 0.00% | 129,589 | $4,091,127 | $4,543,390 | +$452,263 | +11.05% | |
| Mariner, Llc | 0.00% | 129,029 | $4,073,378 | $4,523,757 | +$450,379 | +11.06% | |
| Mendon Capital Advisors Corp | 1.53% | 125,000 | $3,946,250 | $4,382,500 | +$436,250 | +11.05% | |
| Tudor Investment Corp Et Al | 0.02% | 120,385 | $3,800,554 | $4,220,698 | +$420,144 | +11.05% | |
| Jacobs Levy Equity Management, Inc | 0.02% | 117,845 | $3,720,367 | $4,131,646 | +$411,279 | +11.05% | |
| Fiducient Advisors Llc | 0.47% | 114,272 | $3,607,567 | $4,006,376 | +$398,809 | +11.05% | |
| Franklin Resources Inc | 0.00% | 103,246 | $3,259,476 | $3,619,805 | +$360,329 | +11.05% | |
| Trexquant Investment Lp | 0.02% | 101,590 | $3,207,196 | $3,561,745 | +$354,549 | +11.05% | |
| First Trust Advisors Lp | 0.00% | 86,509 | $2,731,089 | $3,033,006 | +$301,917 | +11.05% | |
| Alliancebernstein L.P. | 0.00% | 87,511 | $2,550,946 | $3,068,136 | +$517,190 | +20.27% | |
| Blair William & Co/Il | 0.01% | 75,986 | $2,398,878 | $2,664,069 | +$265,191 | +11.05% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 72,189 | $2,279,007 | $2,530,946 | +$251,939 | +11.05% | |
| Swiss National Bank | 0.00% | 67,900 | $2,143,603 | $2,380,574 | +$236,971 | +11.05% |
Frequently asked questions about BY
Who owns the most BY stock?
The largest holders of BY are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BYLINE BANCORP INC (BY).
Is BY widely held by superinvestors?
Many widely followed stocks like BY appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly BY is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.