STERIS plc
US ˙ NYSE

SecuritySTE / STERIS plc
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership16,323 shares
Latest Disclosed Value $ 3,609,505
Mackenzie Financial Corp reports 5.30% increase in ownership of STE / STERIS plc

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 16,323 shares of STERIS plc (US:STE) valued at $3,609,505 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 15,502 shares of STERIS plc. This represents a change in shares of 5.30% during the quarter. The current value of the position is $3,430,931 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)
2026-05-13 2026-03-31 13F STERIS SHS USD G8473T100 16,323 821 5.30 3,610 -8.68 0.0043
2026-02-18 2025-12-31 13F STERIS SHS USD G8473T100 15,502 3,557 29.78 3,953 33.74 0.0047
2025-11-13 2025-09-30 13F STERIS SHS USD G8473T100 11,945 141 1.19 2,956 4.23 0.0036
2025-08-13 2025-06-30 13F STERIS SHS USD G8473T100 11,804 -6,748 -36.37 2,836 -32.56 0.0037
2025-05-07 2025-03-31 13F STERIS SHS USD G8473T100 18,552 9,153 97.38 4,205 117.60 0.0060
2025-05-02 2024-12-31 13F/A-2 STERIS SHS USD G8473T100 9,399 1,074 12.90 1,932 -4.31 0.0026
2025-02-20 2024-12-31 13F/A-1 STERIS SHS USD G8473T100 9,399 1,074 1,932 0.0025
2025-02-14 2024-12-31 13F STERIS Common Stock G8473T100 9,399 1,074 772 0.0011
2024-11-13 2024-09-30 13F STERIS SHS USD G8473T100 8,325 -1,406 -14.45 2,019 -5.48 0.0028
2024-08-14 2024-06-30 13F STERIS SHS USD G8473T100 9,731 -4,707 -32.60 2,136 -34.18 0.0032
2024-05-10 2024-03-31 13F STERIS SHS USD G8473T100 14,438 4,925 51.77 3,246 55.19 0.0047
2024-01-30 2023-12-31 13F STERIS SHS USD G8473T100 9,513 -273,635 -96.64 2,091 -96.62 0.0032
2023-10-25 2023-09-30 13F STERIS SHS USD G8473T100 283,148 531 0.19 61,806 -0.21 0.1039
2023-08-03 2023-06-30 13F STERIS SHS USD G8473T100 282,617 -193,575 -40.65 61,933 -32.01 0.0939
2023-04-24 2023-03-31 13F STERIS SHS USD G8473T100 476,192 476,192 91,086 0.1407
2023-02-14 2022-12-31 13F STERIS Common Stock G8473T100 0 -489,899 -100.00 0 -100.00
2022-10-07 2022-09-30 13F STERIS Common Stock G8473T100 489,899 69,171 16.44 81,460 -6.08 0.1401
2022-08-10 2022-06-30 13F STERIS SHS USD G8473T100 420,728 23,549 5.93 86,733 -9.68 0.1389
2022-05-13 2022-03-31 13F STERIS SHS USD G8473T100 397,179 -213,961 -35.01 96,026 -35.45 0.1287
2022-02-14 2021-12-31 13F STERIS SHS USD G8473T100 611,140 195,067 46.88 148,758 75.02 0.2004
2021-11-08 2021-09-30 13F STERIS SHS USD G8473T100 416,073 -18,410 -4.24 84,995 -5.18 0.1205
2021-08-11 2021-06-30 13F STERIS SHS USD G8473T100 434,483 13,620 3.24 89,634 11.81 0.1247
2021-05-14 2021-03-31 13F STERIS SHS USD G8473T100 420,863 126,939 43.19 80,166 43.90 0.1222
2021-02-10 2020-12-31 13F STERIS SHS USD G8473T100 293,924 27,286 10.23 55,710 18.58 0.1203
2020-11-13 2020-09-30 13F STERIS SHS USD G8473T100 266,638 32,264 13.77 46,979 30.64 0.1167
2020-08-13 2020-06-30 13F STERIS SHS USD G8473T100 234,374 8,145 3.60 35,962 13.57 0.0962
2020-05-14 2020-03-31 13F STERIS SHS USD G8473T100 226,229 34,985 18.29 31,665 8.63 0.1018
2020-02-13 2019-12-31 13F STERIS SHS USD G8473T100 191,244 -54,382 -22.14 29,149 -17.87 0.0717
2019-11-14 2019-09-30 13F STERIS SHS USD G8473T100 245,626 -176,068 -41.75 35,491 -43.47 0.0933
2019-08-23 2019-06-30 13F/A-1 STERIS SHS USD G8473T100 421,694 1,279 0.30 62,782 16.64 0.1620
2019-08-14 2019-06-30 13F STERIS SHS USD G8473T100 421,694 1,279 62,782
2019-05-15 2019-03-31 13F STERIS SHS USD G8473T100 420,415 230,332 121.17 53,826 165.02 0.1299
2019-02-06 2018-12-31 13F STERIS SHS USD G84720104 190,083 190,083 20,310 0.0534
2016-11-15 2016-09-30 13F STERIS COM 859152100 0 -5,412 -100.00 0 -100.00
2016-08-12 2016-06-30 13F STERIS COM 859152100 5,412 134 2.54 372 -0.80 0.0021
2016-05-12 2016-03-31 13F STERIS COM 859152100 5,278 5,278 0.00 375 0.0034
2016-02-12 2015-12-31 13F STERIS COM 859152100 0 -5,191 -100.00 0 -100.00
2015-11-13 2015-09-30 13F STERIS COM 859152100 5,191 590 12.82 337 13.85 0.0020
2015-08-13 2015-06-30 13F STERIS COM 859152100 4,601 754 19.60 296 9.63 0.0016
2015-05-13 2015-03-31 13F STERIS COM 859152100 3,847 0 0.00 270 8.43 0.0014
2015-02-11 2014-12-31 13F STERIS COM 859152100 3,847 -1,370 -26.26 249 -11.70 0.0013
2014-11-12 2014-09-30 13F STERIS COM 859152100 5,217 -5,217 -50.00 282 -49.46 0.0014
2014-08-11 2014-06-30 13F STERIS COM 859152100 10,434 5,616 116.56 558 142.61 0.0026
2014-05-14 2014-03-31 13F STERIS COM 859152100 4,818 0 0.00 230 -0.86 0.0011
2014-02-11 2013-12-31 13F/A-1 STERIS COM 859152100 4,818 4,818 232 0.0012
2014-02-03 2013-12-31 13F STERIS COM 859152100 4,818 232 0.0012
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.