STERIS plc
US ˙ NYSE

SecuritySTE / STERIS plc
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership1,047 shares
Latest Disclosed Value $ 265,603
Parallel Advisors, LLC ownership in STE / STERIS plc

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 1,047 shares of STERIS plc (US:STE) valued at $265,435 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,066 shares of STERIS plc. This represents a change in shares of -1.78% during the quarter. The current value of the position is $220,069 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (STE) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

STE / STERIS plc Historical Put/Call Ratio
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)
2026-02-11 2025-12-31 13F STERIS PLC SHS USD Stock G8473T100 1,047 -19 -1.78 266 0.76 0.0049
2025-11-13 2025-09-30 13F STERIS PLC SHS USD Stock G8473T100 1,066 -11 -1.02 264 1.94 0.0048
2025-07-08 2025-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,077 36 3.46 259 9.79 0.0052
2025-04-08 2025-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,041 133 14.65 236 26.34 0.0053
2025-02-10 2024-12-31 13F STERIS PLC SHS USD Stock G8473T100 908 -63 -6.49 187 -20.85 0.0042
2024-11-13 2024-09-30 13F STERIS PLC SHS USD Stock G8473T100 971 -138 -12.44 236 -3.29 0.0055
2024-08-08 2024-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,109 4 0.36 244 -2.02 0.0062
2024-05-06 2024-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,105 14 1.28 248 3.77 0.0067
2024-02-12 2023-12-31 13F STERIS PLC SHS USD Stock G8473T100 1,091 -94 -7.93 240 -8.08 0.0071
2024-05-20 2023-09-30 13F/A-1 STERIS PLC SHS USD Stock G8473T100 1,185 -27 -2.23 260 -4.41 0.0087
2023-11-14 2023-09-30 13F STERIS PLC SHS USD Stock G8473T100 1,185 -27 260 0.0087
2024-05-20 2023-06-30 13F/A-1 STERIS PLC SHS USD Stock G8473T100 1,212 -36 -2.88 273 14.29 0.0088
2023-08-04 2023-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,212 -36 273 0.0088
2024-05-20 2023-03-31 13F/A-1 STERIS PLC SHS USD Stock G8473T100 1,248 -50 -3.85 239 -0.42 0.0080
2023-04-25 2023-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,248 -50 239 0.0080
2023-02-06 2022-12-31 13F STERIS PLC SHS USD Stock G8473T100 1,298 2 0.15 240 10.65 0.0104
2022-11-10 2022-09-30 13F STERIS PLC SHS USD Stock G8473T100 1,296 -256 -16.49 216 -32.50 0.0099
2022-08-01 2022-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,552 -128 -7.62 320 -22.52 0.0147
2022-04-28 2022-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,680 2 0.12 413 1.23 0.0164
2022-01-20 2021-12-31 13F STERIS PLC SHS USD Stock G8473T100 1,678 212 14.46 408 36.45 0.0151
2021-11-02 2021-09-30 13F/A-1 STERIS PLC SHS USD Stock G8473T100 1,466 48 3.39 299 2.05 0.0121
2021-08-06 2021-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,418 51 3.73 293 12.69 0.0124
2021-04-23 2021-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,367 -29 -2.08 260 -1.89 0.0123
2021-02-02 2020-12-31 13F STERIS PLC SHS USD Stock G8473T100 1,396 -18 -1.27 265 6.43 0.0144
2020-10-27 2020-09-30 13F STERIS PLC SHS USD Stock G8473T100 1,414 -19 -1.33 249 13.70 0.0154
2020-07-16 2020-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,433 68 4.98 219 14.66 0.0143
2020-04-27 2020-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,365 -241 -15.01 191 -22.04 0.0155
2020-01-30 2019-12-31 13F STERIS PLC SHS USD Stock G8473T100 1,606 -58 -3.49 245 2.08 0.0184
2019-11-01 2019-09-30 13F STERIS PLC SHS USD Stock G8473T100 1,664 117 7.56 240 4.35 0.0206
2019-08-05 2019-06-30 13F STERIS PLC SHS USD Stock G8473T100 1,547 -146 -8.62 230 5.99 0.0224
2019-05-01 2019-03-31 13F STERIS PLC SHS USD Stock G8473T100 1,693 495 41.32 217 69.53 0.0244
2019-02-05 2018-12-31 13F STERIS PLC SHS USD Stock G84720104 1,198 -166 -12.17 128 -17.95 0.0178
2018-11-01 2018-09-30 13F STERIS PLC SHS USD Stock G84720104 1,364 1,129 480.43 156 550.00 0.0194
2018-07-30 2018-06-30 13F STERIS PLC SHS USD Stock G84720104 235 0 0.00 24 9.09 0.0034
2018-05-08 2018-03-31 13F STERIS PLC SHS USD Stock G84720104 235 0 0.00 22 4.76 0.0034
2018-02-13 2017-12-31 13F STERIS PLC SHS USD Stock G84720104 235 0 0.00 21 0.00 0.0034
2017-11-15 2017-09-30 13F/A-1 STERIS PLC SHS USD Stock G84720104 235 0 0.00 21 10.53 0.0036
2017-08-07 2017-06-30 13F STERIS PLC SHS USD Stock G84720104 235 0 0.00 19 5.56 0.0036
2017-05-12 2017-03-31 13F/A-1 STERIS PLC SHS USD Stock G84720104 235 -63 -21.14 18 -10.00 0.0036
2017-05-12 2017-03-31 13F STERIS PLC SHS USD Stock G84720104 235 18
2017-02-14 2016-12-31 13F STERIS PLC SHS USD Stock G84720104 298 298 20 0.0047
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F STERIS PLC SHS USD Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F STERIS PLC SHS USD Stock Call 1,418 293 n/a n/a n/a
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.