OSI Systems, Inc.
DE ˙ DB ˙ US6710441055
180,25 € ↓ -0,35 (-0,19%)
2026-06-04
DEL PRIS
SecurityDE:OS2 / OSI Systems, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership43,058 shares
Latest Disclosed Value $ 11,432,305
Rhumbline Advisers reports 0.49% decrease in ownership of OS2 / OSI Systems, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 43,058 shares of OSI Systems, Inc. (DE:OS2) valued at $9,817,224 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 43,272 shares of OSI Systems, Inc.. This represents a change in shares of -0.49% during the quarter. The current value of the position is $7,761,204 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 OSI SYSTEMS INC COM COM 671044105 43,058 -214 -0.49 11,432 3.59 0.0098
2026-02-13 2025-12-31 13F OSI SYSTEMS INC COM COM 671044105 43,272 -2,379 -5.21 11,037 -3.01 0.0089
2025-11-06 2025-09-30 13F OSI SYSTEMS INC COM COM 671044105 45,651 -104 -0.23 11,378 10.59 0.0091
2025-08-12 2025-06-30 13F OSI SYSTEMS INC COM COM 671044105 45,755 521 1.15 10,288 17.04 0.0088
2025-05-29 2025-03-31 13F/A-1 OSI SYSTEMS INC COM COM 671044105 45,234 912 2.06 8,791 18.46 0.0082
2025-04-08 2025-03-31 13F OSI SYSTEMS INC COM COM 671044105 45,234 912 8,791 0.0082
2025-05-29 2024-12-31 13F/A-1 OSI SYSTEMS INC COM COM 671044105 44,322 -647 -1.44 7,421 8.69 0.0066
2025-01-30 2024-12-31 13F OSI SYSTEMS INC COM COM 671044105 44,322 -647 7,421 0.0066
2024-11-12 2024-09-30 13F OSI SYSTEMS INC COM COM 671044105 44,969 -1,620 -3.48 6,828 6.57 0.0062
2024-08-01 2024-06-30 13F OSI SYSTEMS INC COM COM 671044105 46,589 -116 -0.25 6,407 -3.96 0.0060
2024-05-09 2024-03-31 13F OSI SYSTEMS INC COM COM 671044105 46,705 -602 -1.27 6,670 9.27 0.0064
2024-02-08 2023-12-31 13F OSI SYSTEMS INC COM COM 671044105 47,307 -1,123 -2.32 6,105 6.79 0.0064
2023-11-09 2023-09-30 13F OSI SYSTEMS INC COM COM 671044105 48,430 -243 -0.50 5,717 -0.33 0.0066
2023-08-08 2023-06-30 13F OSI SYSTEMS INC COM COM 671044105 48,673 -4,249 -8.03 5,735 114,600.00 0.0064
2023-05-11 2023-03-31 13F OSI SYSTEMS INC COM COM 671044105 52,922 2,309 4.56 5 -99.88 0.0067
2023-02-14 2022-12-31 13F OSI SYSTEMS INC COM COM 671044105 50,613 159 0.32 4,025 10.70 0.0054
2022-11-10 2022-09-30 13F OSI SYSTEMS INC COM COM 671044105 50,454 715 1.44 3,636 -14.45 0.0054
2022-08-11 2022-06-30 13F OSI SYSTEMS INC COM COM 671044105 49,739 179 0.36 4,250 0.73 0.0062
2022-05-12 2022-03-31 13F OSI SYSTEMS INC COM COM 671044105 49,560 1,157 2.39 4,219 -6.47 0.0054
2022-02-10 2021-12-31 13F OSI SYSTEMS INC COM COM 671044105 48,403 332 0.69 4,511 -1.01 0.0055
2021-11-12 2021-09-30 13F OSI SYSTEMS INC COM COM 671044105 48,071 -6,166 -11.37 4,557 -17.34 0.0062
2021-08-05 2021-06-30 13F OSI SYSTEMS INC COM COM 671044105 54,237 5,089 10.35 5,513 16.73 0.0072
2021-05-06 2021-03-31 13F OSI SYSTEMS INC COM COM 671044105 49,148 567 1.17 4,723 4.28 0.0064
2021-02-10 2020-12-31 13F OSI SYSTEMS INC COM COM 671044105 48,581 2,232 4.82 4,529 25.91 0.0063
2020-11-12 2020-09-30 13F OSI SYSTEMS INC COM COM 671044105 46,349 -4,974 -9.69 3,597 -6.11 0.0056
2020-08-13 2020-06-30 13F OSI SYSTEMS INC COM COM 671044105 51,323 -4,411 -7.91 3,831 -0.26 0.0064
2020-05-06 2020-03-31 13F OSI SYSTEMS INC COM COM 671044105 55,734 898 1.64 3,841 -30.47 0.0080
2020-02-05 2019-12-31 13F OSI SYSTEMS INC COM COM 671044105 54,836 4,251 8.40 5,524 7.53 0.0092
2019-10-23 2019-09-30 13F OSI SYSTEMS INC COM COM 671044105 50,585 -128 -0.25 5,137 -10.07 0.0094
2019-08-14 2019-06-30 13F OSI SYSTEMS INC COM COM 671044105 50,713 115 0.23 5,712 28.88 0.0107
2019-05-01 2019-03-31 13F OSI SYSTEMS INC COM COM 671044105 50,598 305 0.61 4,432 20.24 0.0086
2019-01-31 2018-12-31 13F OSI SYSTEMS INC COM COM 671044105 50,293 8,456 20.21 3,686 15.44 0.0080
2018-11-07 2018-09-30 13F OSI SYSTEMS INC COM COM 671044105 41,837 -1,450 -3.35 3,193 -4.60 0.0062
2018-08-06 2018-06-30 13F OSI SYSTEMS INC COM COM 671044105 43,287 498 1.16 3,347 19.84 0.0068
2018-05-02 2018-03-31 13F OSI SYSTEMS INC COM COM 671044105 42,789 602 1.43 2,793 2.84 0.0058
2018-02-09 2017-12-31 13F OSI SYSTEMS INC COM COM 671044105 42,187 5,875 16.18 2,716 -18.14 0.0055
2017-11-06 2017-09-30 13F OSI SYSTEMS INC COM COM 671044105 36,312 560 1.57 3,318 23.48 0.0072
2017-08-02 2017-06-30 13F OSI SYSTEMS INC COM COM 671044105 35,752 -2,826 -7.33 2,687 -4.58 0.0061
2017-05-02 2017-03-31 13F OSI SYSTEMS INC COM COM 671044105 38,578 9,539 32.85 2,816 27.42 0.0066
2017-01-27 2016-12-31 13F OSI SYSTEMS INC COM COM 671044105 29,039 -1,272 -4.20 2,210 11.50 0.0056
2016-11-08 2016-09-30 13F OSI SYSTEMS INC COM COM 671044105 30,311 1,260 4.34 1,982 17.35 0.0055
2016-08-11 2016-06-30 13F OSI SYSTEMS INC COM COM 671044105 29,051 -5,159 -15.08 1,689 -24.60 0.0050
2016-05-02 2016-03-31 13F OSI SYSTEMS INC N COM 671044105 34,210 2,445 7.70 2,240 -20.45 0.0070
2016-02-03 2015-12-31 13F OSI SYSTEMS INC N COM 671044105 31,765 735 2.37 2,816 17.92 0.0091
2015-11-04 2015-09-30 13F OSI SYSTEMS INC N COM 671044105 31,030 1,391 4.69 2,388 13.82 0.0081
2015-08-04 2015-06-30 13F OSI SYSTEMS INC N COM 671044105 29,639 -1,245 -4.03 2,098 -8.50 0.0067
2015-05-12 2015-03-31 13F OSI SYSTEMS INC N COM 671044105 30,884 945 3.16 2,293 8.21 0.0066
2015-02-06 2014-12-31 13F OSI SYSTEMS INC N COM 671044105 29,939 160 0.54 2,119 12.12 0.0062
2014-11-12 2014-09-30 13F OSI SYSTEMS INC N COM 671044105 29,779 180 0.61 1,890 -4.35 0.0057
2014-08-06 2014-06-30 13F OSI SYSTEMS INC N COM 671044105 29,599 5,039 20.52 1,976 34.42 0.0058
2014-05-06 2014-03-31 13F OSI SYSTEMS INC N COM 671044105 24,560 -1,300 -5.03 1,470 7.06 0.0044
2014-02-03 2013-12-31 13F OSI SYSTEMS INC N COM 671044105 25,860 -110 -0.42 1,373 -29.01 0.0041
2013-11-05 2013-09-30 13F OSI SYSTEMS INC N COM 671044105 25,970 -594 -2.24 1,934 13.03 0.0060
2013-08-07 2013-06-30 13F OSI SYSTEMS INC N COM 671044105 26,564 26,564 1,711 0.0055
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.