M&T Bank Corporation
MX ˙ BMV ˙ US55261F1049
SecurityMX:MTB / M&T Bank Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership94,716 shares
Latest Disclosed Value $ 19,081,926
Sei Investments Co reports 19.26% decrease in ownership of MTB / M&T Bank Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 94,716 shares of M&T Bank Corporation (MX:MTB) valued at $19,081,926 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 117,307 shares of M&T Bank Corporation. This represents a change in shares of -19.26% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-02-13 2025-12-31 13F M & T BK COM 55261F104 94,716 -22,591 -19.26 19,082 -17.69 0.0188
2025-11-13 2025-09-30 13F M & T BK COM 55261F104 117,307 10,893 10.24 23,183 12.30 0.0249
2025-08-14 2025-06-30 13F M & T BK COM 55261F104 106,414 10,523 10.97 20,644 20.41 0.0239
2025-05-14 2025-03-31 13F/A-1 M & T BK COM 55261F104 95,891 13,618 16.55 17,144 10.85 0.0221
2025-05-13 2025-03-31 13F M & T BK COM 55261F104 92,608 10,335 17,006 0.0185
2025-02-11 2024-12-31 13F M & T BK COM 55261F104 82,273 -14,568 -15.04 15,467 -10.32 0.0199
2024-11-12 2024-09-30 13F M & T BK COM 55261F104 96,841 28,019 40.71 17,247 65.57 0.0224
2024-08-13 2024-06-30 13F M & T BK COM 55261F104 68,822 16,730 32.12 10,417 37.47 0.0148
2024-05-07 2024-03-31 13F M & T BK COM 55261F104 52,092 338 0.65 7,578 6.82 0.0111
2024-02-14 2023-12-31 13F M & T BK COM 55261F104 51,754 -2,280 -4.22 7,094 3.79 0.0114
2023-11-14 2023-09-30 13F M & T BK COM 55261F104 54,034 -4,973 -8.43 6,834 -6.43 0.0123
2023-08-11 2023-06-30 13F M & T BK COM 55261F104 59,007 22,904 63.44 7,305 69.15 0.0127
2023-05-12 2023-03-31 13F M & T BK COM 55261F104 36,103 10,736 42.32 4,318 17.27 0.0080
2023-02-10 2022-12-31 13F M & T BK COM 55261F104 25,367 -11,429 -31.06 3,682 -43.26 0.0082
2022-11-14 2022-09-30 13F M & T BK COM 55261F104 36,796 2,314 6.71 6,489 19.55 0.0145
2022-08-15 2022-06-30 13F M & T BK COM 55261F104 34,482 15,034 77.30 5,428 64.29 0.0117
2022-05-13 2022-03-31 13F M & T BK COM 55261F104 19,448 -46,588 -70.55 3,304 -67.41 0.0066
2022-02-14 2021-12-31 13F M & T BK COM 55261F104 66,036 4,016 6.48 10,139 9.45 0.0190
2021-11-12 2021-09-30 13F M & T BK COM 55261F104 62,020 9,571 18.25 9,264 21.57 0.0194
2021-08-06 2021-06-30 13F M & T BK COM 55261F104 52,449 13,905 36.08 7,620 31.67 0.0169
2021-05-12 2021-03-31 13F M & T BK COM 55261F104 38,544 5,302 15.95 5,787 36.71 0.0146
2021-02-08 2020-12-31 13F M & T BK COM 55261F104 33,242 33,242 4,233 0.0109
2020-12-04 2020-09-30 13F/A-1 M & T BK COM 55261F104 0 -14,839 -100.00 0 -100.00
2020-08-17 2020-06-30 13F/A-1 M & T BK COM 55261F104 14,839 -13,560 -47.75 1,541 -47.50 0.0048
2020-08-11 2020-06-30 13F M & T BK COM 55261F104 36,035 7,636 6,030 16,356.6960
2020-05-14 2020-03-31 13F M & T BK COM 55261F104 28,399 -7,070 -19.93 2,935 -51.34 0.0108
2020-02-06 2019-12-31 13F M & T BK COM 55261F104 35,469 -42 -0.12 6,032 7.50 0.0180
2019-11-12 2019-09-30 13F M & T BK COM 55261F104 35,511 4,298 13.77 5,611 5.45 0.0144
2019-08-14 2019-06-30 13F M & T BK COM 55261F104 31,213 1,035 3.43 5,321 12.26 0.0174
2019-05-15 2019-03-31 13F M & T BK COM 55261F104 30,178 -5,708 -15.91 4,740 -19.67 0.0159
2019-02-13 2018-12-31 13F M & T BK COM 55261F104 35,886 118 0.33 5,901 0.22 0.0210
2018-11-08 2018-09-30 13F M & T BK COM 55261F104 35,768 3,962 12.46 5,888 8.82 0.0213
2018-08-03 2018-06-30 13F M & T BK COM 55261F104 31,806 26 0.08 5,411 -7.65 0.0184
2018-05-11 2018-03-31 13F M & T BK COM 55261F104 31,780 -2,468 -7.21 5,859 0.05 0.0225
2018-02-08 2017-12-31 13F M & T BK COM 55261F104 34,248 -3,727 -9.81 5,856 -4.25 0.0203
2017-11-06 2017-09-30 13F M & T BK COM 55261F104 37,975 -24,456 -39.17 6,116 -39.51 0.0217
2017-07-31 2017-06-30 13F M & T BK COM 55261F104 62,431 5,136 8.96 10,111 14.06 0.0403
2017-05-05 2017-03-31 13F M & T BK COM 55261F104 57,295 -452 -0.78 8,865 -1.87 0.0388
2017-02-02 2016-12-31 13F M & T BK COM 55261F104 57,747 32,286 126.81 9,034 205.62 0.0437
2016-11-04 2016-09-30 13F M & T BK COM 55261F104 25,461 739 2.99 2,956 1.13 0.0150
2016-08-11 2016-06-30 13F M & T BK COM 55261F104 24,722 6,802 37.96 2,923 46.96 0.0175
2016-05-10 2016-03-31 13F/A-1 M & T BK COM 55261F104 17,920 -777 -4.16 1,989 -12.22 0.0124
2016-02-03 2015-12-31 13F M & T BK COM 55261F104 18,697 7,888 72.98 2,266 71.80 0.0138
2015-11-02 2015-09-30 13F/A-1 M & T BK COM 55261F104 10,809 -1,381 -11.33 1,319 -13.39 0.0121
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 55261F104 10,809 1,319
2015-08-07 2015-06-30 13F/A-1 M & T BK COM 55261F104 12,190 -1,743 -12.51 1,523 -13.91 0.0138
2015-08-04 2015-06-30 13F M & T BK COM 55261F104 12,190 -1,743 1,523 0.0138
2015-05-14 2015-03-31 13F/A-1 M & T BK COM 55261F104 13,933 1,429 11.43 1,769 12.60 0.0154
2015-05-01 2015-03-31 13F M & T BK COM 55261F104 13,933 1,769
2015-02-10 2014-12-31 13F M & T BK COM 55261F104 12,504 12,504 1,571 0.0139
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.