STERIS plc
US ˙ NYSE

SecuritySTE / STERIS plc
InstitutionDearborn Partners Llc
Latest Disclosed Ownership105,783 shares
Latest Disclosed Value $ 23,391,798
Dearborn Partners Llc reports 7.39% decrease in ownership of STE / STERIS plc

On May 12, 2026 - Dearborn Partners Llc filed a 13F-HR form disclosing ownership of 105,783 shares of STERIS plc (US:STE) valued at $23,391,795 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 114,224 shares of STERIS plc. This represents a change in shares of -7.39% during the quarter. The current value of the position is $22,451,384 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 COM G8473T100 105,783 -8,441 -7.39 23,392 -19.22 1.2236
2026-02-11 2025-12-31 13F Steris COM G8473T100 114,224 -3,997 -3.38 28,958 -1.01 1.4461
2025-11-10 2025-09-30 13F Steris COM G8473T100 118,221 -1,088 -0.91 29,253 2.07 1.3716
2025-08-14 2025-06-30 13F Steris COM G8473T100 119,309 13,613 12.88 28,660 19.64 1.3567
2025-05-08 2025-03-31 13F Steris COM G8473T100 105,696 -21,119 -16.65 23,956 -8.11 1.1500
2025-02-07 2024-12-31 13F Steris COM G8473T100 126,815 -1,302 -1.02 26,068 -16.11 1.0923
2024-11-06 2024-09-30 13F Steris COM G8473T100 128,117 -2,209 -1.69 31,074 8.61 1.2613
2024-07-26 2024-06-30 13F STERIS COM G8473T100 130,326 -1,234 -0.94 28,612 -3.27 1.2371
2024-05-08 2024-03-31 13F STERIS COM G8473T100 131,560 -40,597 -23.58 29,577 -21.85 1.2698
2024-01-26 2023-12-31 13F STERIS COM G8473T100 172,157 -3,491 -1.99 37,849 -1.80 1.3787
2023-11-01 2023-09-30 13F STERIS COM G8473T100 175,648 -666 -0.38 38,541 -2.84 1.5124
2023-08-03 2023-06-30 13F STERIS COM G8473T100 176,314 423 0.24 39,667 17.90 1.5179
2023-05-04 2023-03-31 13F Steris COM G8473T100 175,891 374 0.21 33,644 3.79 1.3235
2023-02-02 2022-12-31 13F Steris COM G8473T100 175,517 -2,294 -1.29 32,416 9.64 1.3083
2022-11-21 2022-09-30 13F/A-1 Steris COM G8473T100 177,811 152 0.09 29,566 -19.27 1.3041
2022-10-25 2022-09-30 13F Steris COM G8473T100 177,811 152 29,566 1.2190
2022-07-20 2022-06-30 13F Steris COM G8473T100 177,659 -478 -0.27 36,624 -14.96 1.5469
2022-05-04 2022-03-31 13F Steris COM G8473T100 178,137 -28,242 -13.68 43,068 -14.27 1.6333
2022-01-28 2021-12-31 13F Steris COM G8473T100 206,379 -1,546 -0.74 50,235 18.27 1.8213
2021-10-27 2021-09-30 13F Steris COM G8473T100 207,925 -135 -0.06 42,475 -1.04 1.7252
2021-07-26 2021-06-30 13F Steris COM G8473T100 208,060 699 0.34 42,923 8.67 1.7259
2021-04-29 2021-03-31 13F Steris COM G8473T100 207,361 3,862 1.90 39,498 2.40 1.6830
2021-01-27 2020-12-31 13F Steris COM G8473T100 203,499 -837 -0.41 38,571 7.14 1.7558
2020-10-20 2020-09-30 13F Steris COM G8473T100 204,336 -412 -0.20 36,002 14.59 1.7925
2020-07-30 2020-06-30 13F Steris COM G8473T100 204,748 -5,554 -2.64 31,417 6.73 1.6977
2020-05-11 2020-03-31 13F Steris COM G8473T100 210,302 10,387 5.20 29,436 -3.40 1.8257
2020-01-28 2019-12-31 13F Steris COM G8473T100 199,915 10,497 5.54 30,471 11.33 1.5519
2019-10-29 2019-09-30 13F Steris COM G8473T100 189,418 -43,535 -18.69 27,369 -21.09 1.5825
2019-07-29 2019-06-30 13F Steris COM G8473T100 232,953 5,991 2.64 34,682 19.35 2.1177
2019-05-01 2019-03-31 13F Steris COM G8473T100 226,962 -31,823 -12.30 29,058 5.09 1.9392
2019-02-04 2018-12-31 13F Steris COM G84720104 258,785 -2,351 -0.90 27,651 -7.44 2.1363
2018-10-24 2018-09-30 13F Steris COM G84720104 261,136 170 0.07 29,874 9.01 2.0927
2018-08-14 2018-06-30 13F Steris COM G84720104 260,966 -50,341 -16.17 27,404 -5.71 2.1418
2018-05-01 2018-03-31 13F Steris COM G84720104 311,307 -13,213 -4.07 29,064 2.39 2.2429
2018-02-02 2017-12-31 13F Steris COM G84720104 324,520 -7,120 -2.15 28,386 -3.18 2.0439
2017-11-13 2017-09-30 13F Steris COM G84720104 331,640 963 0.29 29,317 8.78 2.1570
2017-08-09 2017-06-30 13F Steris COM G84720104 330,677 22,302 7.23 26,950 25.82 1.9912
2017-05-15 2017-03-31 13F Steris COM G84720104 308,375 15,385 5.25 21,420 8.48 1.6663
2017-01-26 2016-12-31 13F Steris COM G84720104 292,990 20,086 7.36 19,745 -1.02 1.6507
2016-10-24 2016-09-30 13F Steris COM G84720104 272,904 5,517 2.06 19,949 8.52 1.6830
2016-07-18 2016-06-30 13F Steris COM G84720104 267,387 5,433 2.07 18,383 -1.23 1.5950
2016-04-19 2016-03-31 13F Steris COM G84720104 261,954 2,593 1.00 18,612 -4.75 1.7307
2016-01-21 2015-12-31 13F Steris COM G84720104 259,361 6,769 2.68 19,540 19.07 1.8189
2015-10-19 2015-09-30 13F Steris COM 859152100 252,592 8,437 3.46 16,411 4.31 1.6445
2015-08-13 2015-06-30 13F Steris COM 859152100 244,155 -35,772 -12.78 15,733 -20.02 1.5167
2015-04-21 2015-03-31 13F Steris COM 859152100 279,927 279,927 0.00 19,670 1.7197
2015-01-28 2014-12-31 13F Steris COM 859152100 0 -270,834 -100.00 0 -100.00
2014-10-29 2014-09-30 13F Steris COM 859152100 270,834 -49 -0.02 14,614 0.88 1.4150
2014-07-23 2014-06-30 13F Steris COM 859152100 270,883 30,768 12.81 14,487 26.36 1.4209
2014-05-05 2014-03-31 13F Steris COM 859152100 240,115 31,371 15.03 11,465 14.31 1.2509
2014-02-14 2013-12-31 13F Steris COM 859152100 208,744 26,675 14.65 10,030 28.23 1.1698
2013-10-24 2013-09-30 13F Steris COM 859152100 182,069 23,565 14.87 7,822 15.08 1.0285
2013-07-22 2013-06-30 13F Steris COM 859152100 158,504 158,504 6,797 0.9658
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.