BYLINE BANCORP INC (BY) 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 June 30, 2026. The institutional investors covered on this page collectively reported approximately $927.25M 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 $132.22M in its June 30, 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 $131.73M, representing an estimated loss of -0.37% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed BY value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Dimensional Fund Advisors Lp, T. Rowe Price Investment Management, Inc., 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
203
Total Reported Value
$927.25M
Largest Holder
Blackrock, Inc.
Largest Position
$132.22M
Insider Transactions (90d)
7
Latest Filing Quarter
Q2 2026
New Institutional Positions
51
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% | 3,510,896 | $132,220,327 | $131,728,818 | -$491,509 | -0.37% | |
| Dimensional Fund Advisors Lp | 0.02% | 2,424,824 | $91,319,164 | $90,979,396 | -$339,768 | -0.37% | |
| T. Rowe Price Investment Management, Inc. | 0.04% | 1,495,588 | $56,324,000 | $56,114,462 | -$209,538 | -0.37% | |
| Vanguard Capital Management Llc | 0.00% | 1,191,625 | $44,876,598 | $44,709,770 | -$166,828 | -0.37% | |
| State Street Corp | 0.00% | 1,089,293 | $41,022,774 | $40,870,273 | -$152,501 | -0.37% | |
| American Century Companies Inc | 0.02% | 1,009,951 | $38,034,755 | $37,893,362 | -$141,393 | -0.37% | |
| Boston Partners | 0.03% | 883,689 | $33,198,565 | $33,156,011 | -$42,554 | -0.13% | |
| Federated Hermes, Inc. | 0.05% | 857,825 | $32,305,689 | $32,185,594 | -$120,095 | -0.37% | |
| Aqr Capital Management Llc | 0.01% | 813,855 | $30,649,796 | $30,535,840 | -$113,956 | -0.37% | |
| Geode Capital Management, Llc | 0.00% | 810,208 | $30,516,178 | $30,399,004 | -$117,174 | -0.38% | |
| Jpmorgan Chase & Co | 0.00% | 507,652 | $19,092,792 | $19,047,103 | -$45,689 | -0.24% | |
| Ararat Capital Management Lp | 8.65% | 490,609 | $18,476,335 | $18,407,650 | -$68,685 | -0.37% | |
| Wellington Management Group Llp | 0.00% | 488,460 | $18,395,403 | $18,327,019 | -$68,384 | -0.37% | |
| Nuveen, Llc | 0.00% | 437,302 | $16,468,794 | $16,407,571 | -$61,223 | -0.37% | |
| Bridgeway Capital Management, Llc | 0.28% | 424,253 | $15,977,368 | $15,917,973 | -$59,395 | -0.37% | |
| Vanguard Portfolio Management Llc | 0.00% | 362,683 | $13,658,642 | $13,607,866 | -$50,776 | -0.37% | |
| Two Sigma Investments, Lp | 0.01% | 350,081 | $13,184,050 | $13,135,039 | -$49,011 | -0.37% | |
| Morgan Stanley | 0.00% | 301,094 | $11,339,243 | $11,297,047 | -$42,196 | -0.37% | |
| Northern Trust Corp | 0.00% | 295,900 | $11,143,594 | $11,102,168 | -$41,426 | -0.37% | |
| Charles Schwab Investment Management Inc | 0.00% | 269,067 | $10,133,063 | $10,095,394 | -$37,669 | -0.37% | |
| Millennium Management Llc | 0.01% | 250,593 | $9,437,332 | $9,402,249 | -$35,083 | -0.37% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 245,280 | $9,237,245 | $9,202,906 | -$34,339 | -0.37% | |
| Endeavour Capital Advisors Inc | 1.84% | 238,671 | $8,988,350 | $8,954,936 | -$33,414 | -0.37% | |
| Qube Research & Technologies Ltd | 0.01% | 219,168 | $8,253,867 | $8,223,183 | -$30,684 | -0.37% | |
| Empowered Funds, Llc | 0.04% | 213,253 | $8,031,108 | $8,001,253 | -$29,855 | -0.37% | |
| Goldman Sachs Group Inc | 0.00% | 212,551 | $8,004,670 | $7,974,914 | -$29,756 | -0.37% | |
| Vanguard Fiduciary Trust Co | 0.00% | 210,966 | $7,944,980 | $7,915,444 | -$29,536 | -0.37% | |
| Detalus Advisors, Llc | 1.44% | 196,050 | $7,383,243 | $7,355,796 | -$27,447 | -0.37% | |
| Denali Advisors Llc | 0.70% | 185,516 | $6,986,533 | $6,960,560 | -$25,973 | -0.37% | |
| Fmr Llc | 0.00% | 182,355 | $6,867,473 | $6,841,960 | -$25,513 | -0.37% | |
| Bank Of New York Mellon Corp | 0.00% | 167,130 | $6,294,104 | $6,270,718 | -$23,386 | -0.37% | |
| Thrivent Financial For Lutherans | 0.01% | 157,091 | $5,916,000 | $5,894,054 | -$21,946 | -0.37% | |
| Bank Of America Corp | 0.00% | 151,407 | $5,701,987 | $5,680,791 | -$21,196 | -0.37% | |
| Curi Capital, Llc | 0.08% | 143,042 | $5,386,966 | $5,366,936 | -$20,030 | -0.37% | |
| Zacks Investment Management | 0.04% | 139,641 | $5,258,919 | $5,239,330 | -$19,589 | -0.37% | |
| Mariner, Llc | 0.01% | 137,192 | $5,166,647 | $5,147,444 | -$19,203 | -0.37% | |
| Bartlett & Co. Wealth Management Llc | 0.06% | 134,158 | $5,052,390 | $5,033,608 | -$18,782 | -0.37% | |
| Maltese Capital Management Llc | 0.89% | 130,000 | $4,895,800 | $4,877,600 | -$18,200 | -0.37% | |
| Mendon Capital Advisors Corp | 1.66% | 125,000 | $4,707,500 | $4,690,000 | -$17,500 | -0.37% | |
| First Trust Advisors Lp | 0.00% | 123,776 | $4,661,404 | $4,644,076 | -$17,328 | -0.37% | |
| Fiducient Advisors Llc | 0.60% | 110,850 | $4,174,611 | $4,159,092 | -$15,519 | -0.37% | |
| Jacobs Levy Equity Management, Inc | 0.01% | 106,896 | $4,025,703 | $4,010,738 | -$14,965 | -0.37% | |
| Trexquant Investment Lp | 0.02% | 98,544 | $3,711,167 | $3,697,371 | -$13,796 | -0.37% | |
| Ubs Group Ag | 0.00% | 96,743 | $3,643,342 | $3,629,797 | -$13,545 | -0.37% | |
| Point72 Asset Management, L.P. | 0.01% | 90,304 | $3,400,849 | $3,388,206 | -$12,643 | -0.37% | |
| Man Group Plc | 0.01% | 88,827 | $3,345,225 | $3,332,789 | -$12,436 | -0.37% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 80,600 | $3,035,396 | $3,024,112 | -$11,284 | -0.37% |
| Blair William & Co/Il | 0.01% | 79,924 | $3,009,936 | $2,998,748 | -$11,188 | -0.37% | |
| Citadel Advisors Llc | 0.00% | 73,908 | $2,783,376 | $2,773,028 | -$10,348 | -0.37% | |
| Tudor Investment Corp Et Al | 0.01% | 68,297 | $2,572,065 | $2,562,503 | -$9,562 | -0.37% |
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.