STERIS plc
US ˙ NYSE

SecuritySTE / STERIS plc
InstitutionRathbone Brothers plc
Latest Disclosed Ownership100,231 shares
Latest Disclosed Value $ 22,164,081
Rathbone Brothers plc reports 6.01% decrease in ownership of STE / STERIS plc

On May 12, 2026 - Rathbone Brothers plc filed a 13F-HR form disclosing ownership of 100,231 shares of STERIS plc (US:STE) valued at $22,164,081 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 6, 2026 disclosing 106,637 shares of STERIS plc. This represents a change in shares of -6.01% during the quarter. The current value of the position is $21,273,027 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 PLC USD0.001 Ordinary Shares COM G8473T100 100,231 -6,406 -6.01 22,164 -18.01 0.0947
2026-02-06 2025-12-31 13F/A-1 STERIS PLC USD0.001 Ordinary Shares COM G8473T100 106,637 -1,963 -1.81 27,035 0.61 0.1070
2026-01-21 2025-12-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 106,637 -1,963 27,035 0.1070
2025-11-13 2025-09-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 108,600 -3,281 -2.93 26,872 -0.02 0.1091
2025-08-07 2025-06-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 111,881 -1,587 -1.40 26,876 4.51 0.1159
2025-05-13 2025-03-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 113,468 -4,460 -3.78 25,718 6.09 0.1243
2025-02-13 2024-12-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 117,928 -6,068 -4.89 24,241 -19.39 0.1174
2024-11-13 2024-09-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 123,996 -5,468 -4.22 30,074 5.81 0.1518
2024-08-09 2024-06-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 129,464 1,659 1.30 28,423 -1.08 0.1548
2024-05-14 2024-03-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 127,805 21,706 20.46 28,733 23.19 0.1658
2024-02-13 2023-12-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 106,099 4,917 4.86 23,326 5.06 0.1503
2023-11-13 2023-09-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 101,182 2,616 2.65 22,201 0.12 0.1610
2023-08-04 2023-06-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 98,566 391 0.40 22,175 18.09 0.2069
2023-05-12 2023-03-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 98,175 -1,601 -1.60 18,779 1.90 0.1920
2023-02-14 2022-12-31 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 99,776 13,279 15.35 18,428 28.12 0.2075
2022-11-14 2022-09-30 13F/A-1 STERIS PLC USD0.001 Ordinary Shares COM G8473T100 86,497 17,320 25.04 14,383 0.86 0.1775
2022-11-03 2022-09-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 86,497 17,320 14,383 0.1775
2022-08-12 2022-06-30 13F STERIS PLC USD0.001 Ordinary Shares COM G8473T100 69,177 69,177 14,261 0.1635
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.