STERIS plc
US ˙ NYSE

SecuritySTE / STERIS plc
InstitutionM&t Bank Corp
Latest Disclosed Ownership13,433 shares
Latest Disclosed Value $ 2,970,439
M&t Bank Corp reports 12.38% decrease in ownership of STE / STERIS plc

On May 12, 2026 - M&t Bank Corp filed a 13F-HR form disclosing ownership of 13,433 shares of STERIS plc (US:STE) valued at $2,970,439 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 30, 2026 disclosing 15,331 shares of STERIS plc. This represents a change in shares of -12.38% during the quarter. The current value of the position is $2,851,020 USD.

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)
2026-05-12 2026-03-31 13F STERIS SHS USD G8473T100 13,433 -1,898 -12.38 2,970 -23.57 0.0024
2026-01-30 2025-12-31 13F/A-1 STERIS SHS USD G8473T100 15,331 -1,353 -8.11 3,887 -5.89 0.0125
2026-01-28 2025-12-31 13F STERIS SHS USD G8473T100 29,081 12,397 7,988 0.0048
2025-11-14 2025-09-30 13F STERIS SHS USD G8473T100 16,684 -5,287 -24.06 4,129 -21.75 0.0139
2025-08-13 2025-06-30 13F STERIS SHS USD G8473T100 21,971 -9,636 -30.49 5,278 -26.33 0.0181
2025-04-30 2025-03-31 13F STERIS SHS USD G8473T100 31,607 369 1.18 7,164 11.56 0.0261
2025-02-06 2024-12-31 13F STERIS SHS USD G8473T100 31,238 -1,400 -4.29 6,422 -18.89 0.0215
2024-11-19 2024-09-30 13F/A-1 STERIS SHS USD G8473T100 32,638 -547 -1.65 7,916 8.65 0.0260
2024-11-15 2024-09-30 13F STERIS SHS USD G8473T100 32,638 -547 7,916 0.0048
2024-07-31 2024-06-30 13F STERIS SHS USD G8473T100 33,185 51 0.15 7,286 -2.18 0.0249
2024-05-07 2024-03-31 13F STERIS SHS USD G8473T100 33,134 -1,112 -3.25 7,449 -1.08 0.0259
2024-02-06 2023-12-31 13F STERIS SHS USD G8473T100 34,246 -1,298 -3.65 7,529 -3.46 0.0277
2023-11-02 2023-09-30 13F STERIS SHS USD G8473T100 35,544 -5,048 -12.44 7,799 -14.60 0.0311
2023-08-09 2023-06-30 13F STERIS SHS USD G8473T100 40,592 -863 -2.08 9,132 15.17 0.0341
2023-05-11 2023-03-31 13F STERIS SHS USD G8473T100 41,455 -5,309 -11.35 7,930 -8.19 0.0307
2023-02-13 2022-12-31 13F/A-1 STERIS SHS USD G8473T100 46,764 -1,125 -2.35 8,637 8.42 0.0347
2023-02-13 2022-12-31 13F SMART GLOBAL HLDGS SHS G8473T100 37,284 -10,605 6,069 0.0244
2022-11-17 2022-09-30 13F/A-1 STERIS SHS USD G8473T100 47,889 2,128 4.65 7,965 -0.64 0.0354
2022-11-14 2022-09-30 13F STERIS SHS USD G8473T100 47,889 2,128 7,923 0.0068
2022-08-05 2022-06-30 13F STERIS SHS USD G8473T100 45,761 5,700 14.23 8,016 -17.24 0.0378
2022-05-09 2022-03-31 13F STERIS SHS USD G8473T100 40,061 1,263 3.26 9,686 2.55 0.0428
2022-02-07 2021-12-31 13F STERIS SHS USD G8473T100 38,798 -994 -2.50 9,445 16.19 0.0397
2021-10-28 2021-09-30 13F STERIS SHS USD G8473T100 39,792 -1,973 -4.72 8,129 -5.65 0.0366
2021-08-13 2021-06-30 13F STERIS SHS USD G8473T100 41,765 -4,088 -8.92 8,616 -1.34 0.0378
2021-05-06 2021-03-31 13F STERIS SHS USD G8473T100 45,853 -10,601 -18.78 8,733 -18.38 0.0377
2021-02-12 2020-12-31 13F STERIS SHS USD G8473T100 56,454 3,135 5.88 10,700 13.89 0.0469
2020-11-06 2020-09-30 13F STERIS SHS USD G8473T100 53,319 -355 -0.66 9,395 14.07 0.0461
2020-07-29 2020-06-30 13F STERIS SHS USD G8473T100 53,674 6,279 13.25 8,236 24.15 0.0441
2020-05-14 2020-03-31 13F STERIS SHS USD G8473T100 47,395 6,041 14.61 6,634 5.25 0.0392
2020-02-07 2019-12-31 13F STERIS SHS USD G8473T100 41,354 2,265 5.79 6,303 11.60 0.0296
2019-11-12 2019-09-30 13F STERIS SHS USD G8473T100 39,089 -4,048 -9.38 5,648 -12.05 0.0282
2019-08-12 2019-06-30 13F STERIS SHS USD G8473T100 43,137 2,144 5.23 6,422 22.37 0.0335
2019-05-15 2019-03-31 13F STERIS SHS USD G8473T100 40,993 -507 -1.22 5,248 18.38 0.0274
2019-02-01 2018-12-31 13F STERIS SHS USD G84720104 41,500 -10 -0.02 4,433 -6.65 0.0254
2018-11-09 2018-09-30 13F STERIS SHS USD G84720104 41,510 29,224 237.86 4,749 267.85 0.0238
2018-08-10 2018-06-30 13F STERIS SHS USD G84720104 12,286 -1,353 -9.92 1,291 1.41 0.0069
2018-05-04 2018-03-31 13F STERIS SHS USD G84720104 13,639 -1,125 -7.62 1,273 -1.47 0.0068
2018-02-06 2017-12-31 13F STERIS SHS USD G84720104 14,764 1,952 15.24 1,292 14.03 0.0068
2017-11-13 2017-09-30 13F STERIS SHS USD G84720104 12,812 -1,947 -13.19 1,133 -5.82 0.0061
2017-08-11 2017-06-30 13F STERIS SHS USD G84720104 14,759 -155 -1.04 1,203 16.23 0.0071
2017-05-10 2017-03-31 13F STERIS SHS USD G84720104 14,914 -11,410 -43.34 1,035 -41.66 0.0062
2017-02-14 2016-12-31 13F STERIS SHS USD G84720104 26,324 -1,312 -4.75 1,774 -12.18 0.0111
2016-11-04 2016-09-30 13F STERIS SHS USD G84720104 27,636 85 0.31 2,020 6.65 0.0129
2016-08-04 2016-06-30 13F STERIS SHS USD G84720104 27,551 -11,748 -29.89 1,894 -32.16 0.0127
2016-05-11 2016-03-31 13F STERIS SHS USD G84720104 39,299 4,708 13.61 2,792 7.18 0.0189
2016-02-12 2015-12-31 13F STERIS SHS USD G84720104 34,591 30,864 828.12 2,605 976.45 0.0173
2015-11-13 2015-09-30 13F STERIS COM 859152100 3,727 -10,220 -73.28 242 -73.08 0.0016
2015-08-14 2015-06-30 13F STERIS COM 859152100 13,947 -268 -1.89 899 -10.01 0.0054
2015-05-14 2015-03-31 13F STERIS COM 859152100 14,215 -2,908 -16.98 999 -10.00 0.0062
2015-02-12 2014-12-31 13F STERIS COM 859152100 17,123 -1,400 -7.56 1,110 11.11 0.0069
2014-11-14 2014-09-30 13F STERIS COM 859152100 18,523 18,523 999 0.0070
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.