M&T Bank Corporation
MX ˙ BMV ˙ US55261F1049
SecurityMX:MTB / M&T Bank Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership301,645 shares
Latest Disclosed Value $ 62,356,055
Marshall Wace, Llp reports 424.15% increase in ownership of MTB / M&T Bank Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 301,645 shares of M&T Bank Corporation (MX:MTB) valued at $62,356,055 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 57,549 shares of M&T Bank Corporation. This represents a change in shares of 424.15% 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)
2026-05-14 2026-03-31 13F M&T BANK COMMON STOCK 55261F104 301,645 244,096 424.15 62,356 437.83 0.0294
2026-02-13 2025-12-31 13F M&T BANK COMMON STOCK 55261F104 57,549 52,201 976.08 11,595 997.92 0.0106
2025-11-13 2025-09-30 13F M&T BANK COMMON STOCK 55261F104 5,348 -579,090 -99.08 1,057 -99.07 0.0011
2025-08-13 2025-06-30 13F M&T BANK COMMON STOCK 55261F104 584,438 33,920 6.16 113,375 15.21 0.1277
2025-05-15 2025-03-31 13F M&T BANK COMMON STOCK 55261F104 550,518 -67,620 -10.94 98,405 -15.33 0.1249
2025-02-13 2024-12-31 13F M&T BANK COMMON STOCK 55261F104 618,138 -364,025 -37.06 116,216 -33.57 0.1397
2024-11-14 2024-09-30 13F M&T BANK COMMON STOCK 55261F104 982,163 305,418 45.13 174,943 70.79 0.2131
2024-08-14 2024-06-30 13F M&T BANK COMMON STOCK 55261F104 676,745 472,997 232.15 102,432 245.67 0.1368
2024-05-15 2024-03-31 13F M&T BANK COMMON STOCK 55261F104 203,748 -436,124 -68.16 29,633 -66.22 0.0451
2024-02-14 2023-12-31 13F M&T BANK COMMON STOCK 55261F104 639,872 -75,525 -10.56 87,714 -3.04 0.1486
2023-11-14 2023-09-30 13F M&T BANK COMMON STOCK 55261F104 715,397 19,821 2.85 90,462 5.08 0.1832
2023-08-14 2023-06-30 13F M&T BANK COMMON STOCK 55261F104 695,576 -158,086 -18.52 86,084 -15.66 0.1681
2023-05-15 2023-03-31 13F M&T BANK COMMON STOCK 55261F104 853,662 502,902 143.37 102,072 100.61 0.2169
2023-02-14 2022-12-31 13F M&T BANK COMMON STOCK 55261F104 350,760 72,678 26.14 50,881 3.77 0.1144
2022-11-14 2022-09-30 13F M&T BANK COMMON STOCK 55261F104 278,082 278,082 49,032 0.1074
2022-08-15 2022-06-30 13F M&T BANK COMMON STOCK 55261F104 0 -41,201 -100.00 0 -100.00
2022-05-16 2022-03-31 13F M&T BANK COMMON STOCK 55261F104 41,201 -29,861 -42.02 6,983 -36.02 0.0132
2022-02-14 2021-12-31 13F M&T BANK COMMON STOCK 55261F104 71,062 -80,713 -53.18 10,915 -51.84 0.0202
2021-11-15 2021-09-30 13F M&T BANK COMMON STOCK 55261F104 151,775 128,228 544.56 22,666 562.36 0.0941
2021-08-13 2021-06-30 13F M&T BANK COMMON STOCK 55261F104 23,547 1,521 6.91 3,422 2.49 0.0167
2021-05-17 2021-03-31 13F M&T BANK COMMON STOCK 55261F104 22,026 -201,320 -90.14 3,339 -88.26 0.0153
2021-02-16 2020-12-31 13F M&T BANK COMMON STOCK 55261F104 223,346 85,117 61.58 28,432 123.36 0.1541
2020-11-16 2020-09-30 13F M&T BANK COMMON STOCK 55261F104 138,229 111,746 421.95 12,729 362.37 0.0815
2020-08-13 2020-06-30 13F M&T BANK COMMON STOCK 55261F104 26,483 7,228 37.54 2,753 38.27 0.0193
2020-05-15 2020-03-31 13F M&T BANK COMMON STOCK 55261F104 19,255 19,255 -27.29 1,991 -27.68 0.0199
2019-11-14 2019-09-30 13F M&T BANK COMMON STOCK 55261F104 0 -16,765 -100.00 0 -100.00
2019-08-14 2019-06-30 13F M&T BANK COMMON STOCK 55261F104 16,765 14,618 680.86 2,851 745.99 0.0235
2019-05-29 2019-03-31 13F/A-1 M&T BANK COMMON STOCK 55261F104 2,147 1,676 355.84 337 402.99 0.0032
2019-05-14 2019-03-31 13F M&T BANK COMMON STOCK 55261F104 2,147 1,676 337
2019-02-14 2018-12-31 13F M&T BANK COMMON STOCK 55261F104 471 -41,177 -98.87 67 -99.02 0.0007
2018-12-06 2018-09-30 13F/A-1 M&T BANK COMMON STOCK 55261F104 41,648 18,884 82.96 6,853 76.94 0.0583
2018-11-14 2018-09-30 13F M&T BANK COMMON STOCK 55261F104 41,648 18,884 6,853
2018-08-14 2018-06-30 13F M&T BANK COMMON STOCK 55261F104 22,764 22,764 -45.34 3,873 -43.48 0.0580
2018-05-15 2018-03-31 13F M&T BANK COMMON STOCK 55261F104 0 -6,003 -100.00 0 -100.00
2018-03-29 2017-12-31 13F/A-1 M&T BANK COMMON STOCK 55261F104 6,003 6,003 1,026 0.0431
2018-02-14 2017-12-31 13F M&T BANK COMMON STOCK 55261F104 6,003 6,003 1,026
2016-02-10 2015-12-31 13F M&T BANK COMMON STOCK 55261F104 0 -17,298 -100.00 0 -100.00
2015-11-12 2015-09-30 13F M&T BANK COMMON STOCK 55261F104 17,298 17,298 2,109 0.0259
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.