M&T Bank Corporation
MX ˙ BMV ˙ US55261F1049
SecurityMX:MTB / M&T Bank Corporation
InstitutionSummitry Llc
Latest Disclosed Ownership3,023 shares
Latest Disclosed Value $ 624,915
Summitry Llc reports 5.04% increase in ownership of MTB / M&T Bank Corporation

On May 22, 2026 - Summitry Llc filed a 13F-HR/A form disclosing ownership of 3,023 shares of M&T Bank Corporation (MX:MTB) valued at $624,915 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 2,878 shares of M&T Bank Corporation. This represents a change in shares of 5.04% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-22 2026-03-31 13F/A-1 M & T BK COM 55261F104 3,023 145 5.04 625 7.77 0.0220
2026-05-11 2026-03-31 13F M & T BK COM 55261F104 3,023 145 625 0.0273
2026-02-09 2025-12-31 13F M & T BK COM 55261F104 2,878 2,878 580 0.0242
2023-08-08 2023-06-30 13F M & T BK COM 55261F104 0 -23,523 -100.00 0 -100.00
2023-05-12 2023-03-31 13F M & T BK COM 55261F104 23,523 2,078 9.69 2,813 -9.58 0.1889
2023-02-10 2022-12-31 13F M & T BK COM 55261F104 21,445 1,188 5.86 3,111 -12.93 0.2288
2022-11-09 2022-09-30 13F M & T BK COM 55261F104 20,257 970 5.03 3,572 16.20 0.2696
2022-08-09 2022-06-30 13F M & T BK COM 55261F104 19,287 -1,916 -9.04 3,074 -14.47 0.2246
2022-05-09 2022-03-31 13F M & T BK COM 55261F104 21,203 -431 -1.99 3,594 8.16 0.2132
2022-02-10 2021-12-31 13F M & T BK COM 55261F104 21,634 535 2.54 3,323 5.46 0.1941
2021-11-12 2021-09-30 13F M & T BK COM 55261F104 21,099 355 1.71 3,151 4.55 0.1970
2021-08-13 2021-06-30 13F M & T BK COM 55261F104 20,744 1,301 6.69 3,014 2.24 0.1868
2021-05-12 2021-03-31 13F M & T BK COM 55261F104 19,443 1,471 8.18 2,948 28.85 0.1896
2021-02-05 2020-12-31 13F M & T BK COM 55261F104 17,972 625 3.60 2,288 43.27 0.1675
2020-11-12 2020-09-30 13F M & T BK COM 55261F104 17,347 1,241 7.71 1,597 -4.66 0.1286
2020-08-07 2020-06-30 13F M & T BK COM 55261F104 16,106 2,256 16.29 1,675 16.97 0.1387
2020-05-08 2020-03-31 13F M & T BK COM 55261F104 13,850 601 4.54 1,432 -36.33 0.1312
2020-02-07 2019-12-31 13F M & T BK COM 55261F104 13,249 1,191 9.88 2,249 18.06 0.1809
2019-11-05 2019-09-30 13F M & T BK COM 55261F104 12,058 755 6.68 1,905 -0.88 0.1504
2019-08-13 2019-06-30 13F M & T BK COM 55261F104 11,303 821 7.83 1,922 16.77 0.1580
2019-05-13 2019-03-31 13F M & T BK COM 55261F104 10,482 745 7.65 1,646 18.08 0.1428
2019-02-08 2018-12-31 13F M & T BK COM 55261F104 9,737 1,006 11.52 1,394 -2.99 0.1362
2018-11-09 2018-09-30 13F M & T BK COM 55261F104 8,731 225 2.65 1,437 -0.69 0.1224
2018-08-09 2018-06-30 13F M & T BK COM 55261F104 8,506 550 6.91 1,447 -1.36 0.1343
2018-05-10 2018-03-31 13F M & T BK COM 55261F104 7,956 296 3.86 1,467 11.98 0.1355
2018-02-12 2017-12-31 13F M & T BK COM 55261F104 7,660 610 8.65 1,310 15.42 0.1191
2017-11-02 2017-09-30 13F M & T BK COM 55261F104 7,050 865 13.99 1,135 13.27 0.1053
2017-08-11 2017-06-30 13F M & T BK COM 55261F104 6,185 265 4.48 1,002 9.39 0.0954
2017-05-12 2017-03-31 13F M & T BK COM 55261F104 5,920 -185 -3.03 916 -4.08 0.0883
2017-02-14 2016-12-31 13F M & T BK COM 55261F104 6,105 330 5.71 955 42.54 0.0927
2016-11-09 2016-09-30 13F M & T BK COM 55261F104 5,775 995 20.82 670 18.58 0.0672
2016-08-10 2016-06-30 13F M & T BK COM 55261F104 4,780 4,780 565 0.0582
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.