OSI Systems, Inc.
DE ˙ DB ˙ US6710441055
181,35 € ↓ -0,80 (-0,44%)
2026-06-02
DEL PRIS
SecurityDE:OS2 / OSI Systems, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership5,591 shares
Latest Disclosed Value $ 1,484,466
Citigroup Inc reports 84.27% decrease in ownership of OS2 / OSI Systems, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 5,591 shares of OSI Systems, Inc. (DE:OS2) valued at $1,274,748 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 35,543 shares of OSI Systems, Inc.. This represents a change in shares of -84.27% during the quarter. The current value of the position is $1,013,928 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)
2026-05-11 2026-03-31 13F OSI SYSTEMS COM 671044105 5,591 -29,952 -84.27 1,484 -83.63 0.0003
2026-02-13 2025-12-31 13F OSI SYSTEMS COM 671044105 35,543 21,878 160.10 9,066 166.23 0.0040
2025-11-10 2025-09-30 13F OSI SYSTEMS COM 671044105 13,665 -7,260 -34.70 3,406 -27.63 0.0015
2025-08-11 2025-06-30 13F OSI SYSTEMS COM 671044105 20,925 -6,877 -24.74 4,705 -12.92 0.0023
2025-05-12 2025-03-31 13F OSI SYSTEMS COM 671044105 27,802 275 1.00 5,403 17.25 0.0028
2025-02-12 2024-12-31 13F OSI SYSTEMS COM 671044105 27,527 207 0.76 4,609 11.12 0.0027
2024-11-12 2024-09-30 13F OSI SYSTEMS COM 671044105 27,320 10,753 64.91 4,148 82.05 0.0024
2024-08-12 2024-06-30 13F OSI SYSTEMS COM 671044105 16,567 2,530 18.02 2,278 13.67 0.0015
2024-05-10 2024-03-31 13F OSI SYSTEMS COM 671044105 14,037 1,448 11.50 2,005 23.40 0.0013
2024-02-09 2023-12-31 13F OSI SYSTEMS COM 671044105 12,589 4,374 53.24 1,625 67.60 0.0011
2023-12-06 2023-09-30 13F/A-1 OSI SYSTEMS COM 671044105 8,215 -6,328 -43.51 970 -43.43 0.0007
2023-11-09 2023-09-30 13F OSI SYSTEMS COM 671044105 8,215 -6,328 970 0.0003
2023-08-10 2023-06-30 13F OSI SYSTEMS COM 671044105 14,543 5,325 57.77 1,714 81.65 0.0011
2023-05-11 2023-03-31 13F OSI SYSTEMS COM 671044105 9,218 -386 -4.02 944 23.59 0.0007
2023-02-09 2022-12-31 13F OSI SYSTEMS COM 671044105 9,604 -365 -3.66 764 6.27 0.0006
2022-11-10 2022-09-30 13F OSI SYSTEMS COM 671044105 9,969 2,738 37.86 718 16.18 0.0005
2022-08-10 2022-06-30 13F OSI SYSTEMS COM 671044105 7,231 -7,094 -49.52 618 -49.34 0.0005
2022-05-12 2022-03-31 13F OSI SYSTEMS COM 671044105 14,325 722 5.31 1,220 -3.79 0.0007
2022-02-10 2021-12-31 13F OSI SYSTEMS COM 671044105 13,603 4,033 42.14 1,268 39.80 0.0007
2021-11-10 2021-09-30 13F OSI SYSTEMS COM 671044105 9,570 -59 -0.61 907 -7.26 0.0005
2021-08-10 2021-06-30 13F OSI SYSTEMS COM 671044105 9,629 1,075 12.57 978 18.98 0.0006
2021-05-13 2021-03-31 13F OSI SYSTEMS COM 671044105 8,554 -9,918 -53.69 822 -52.26 0.0005
2021-02-11 2020-12-31 13F OSI SYSTEMS COM 671044105 18,472 -6,992 -27.46 1,722 -12.85 0.0010
2020-11-12 2020-09-30 13F OSI SYSTEMS COM 671044105 25,464 11,681 84.75 1,976 92.03 0.0013
2020-08-12 2020-06-30 13F OSI SYSTEMS COM 671044105 13,783 2,748 24.90 1,029 35.22 0.0008
2020-05-12 2020-03-31 13F OSI SYSTEMS COM 671044105 11,035 897 8.85 761 -25.47 0.0007
2020-02-12 2019-12-31 13F OSI SYSTEMS COM 671044105 10,138 -6,048 -37.37 1,021 -37.90 0.0007
2019-11-08 2019-09-30 13F OSI SYSTEMS COM 671044105 16,186 10,873 204.65 1,644 174.46 0.0013
2019-08-12 2019-06-30 13F OSI SYSTEMS COM 671044105 5,313 -5,753 -51.99 599 -38.18 0.0005
2019-05-13 2019-03-31 13F OSI SYSTEMS COM 671044105 11,066 5,899 114.17 969 156.35 0.0009
2019-02-12 2018-12-31 13F OSI SYSTEMS COM 671044105 5,167 -5,814 -52.95 378 -54.89 0.0004
2018-11-13 2018-09-30 13F OSI SYSTEMS COM 671044105 10,981 6,428 141.18 838 138.07 0.0007
2018-08-10 2018-06-30 13F OSI SYSTEMS COM 671044105 4,553 -1,212 -21.02 352 -6.38 0.0003
2018-05-11 2018-03-31 13F OSI SYSTEMS COM 671044105 5,765 4,815 506.84 376 516.39 0.0003
2018-02-12 2017-12-31 13F OSI SYSTEMS COM 671044105 950 -3,464 -78.48 61 -84.86 0.0000
2017-11-13 2017-09-30 13F OSI SYSTEMS COM 671044105 4,414 3,570 422.99 403 539.68 0.0003
2017-08-11 2017-06-30 13F OSI SYSTEMS COM 671044105 844 -845 -50.03 63 -48.78 0.0001
2017-05-12 2017-03-31 13F OSI SYSTEMS COM 671044105 1,689 -21,688 -92.77 123 -93.09 0.0001
2017-02-10 2016-12-31 13F OSI SYSTEMS COM 671044105 23,377 19,438 493.48 1,779 589.53 0.0016
2016-11-10 2016-09-30 13F OSI SYSTEMS COM 671044105 3,939 -6,930 -63.76 258 -59.11 0.0002
2016-08-12 2016-06-30 13F OSI SYSTEMS COM 671044105 10,869 -9,927 -47.74 631 -53.67 0.0006
2016-05-13 2016-03-31 13F OSI SYSTEMS COM 671044105 20,796 10,956 111.34 1,362 56.01 0.0015
2016-02-12 2015-12-31 13F OSI SYSTEMS COM 671044105 9,840 721 7.91 873 24.36 0.0009
2015-11-13 2015-09-30 13F OSI SYSTEMS COM 671044105 9,119 1,917 26.62 702 37.92 0.0007
2015-08-13 2015-06-30 13F OSI SYSTEMS COM 671044105 7,202 435 6.43 509 1.19 0.0005
2015-05-14 2015-03-31 13F OSI SYSTEMS COM 671044105 6,767 -5,312 -43.98 503 -41.17 0.0005
2015-02-17 2014-12-31 13F OSI SYSTEMS COM 671044105 12,079 10,078 503.65 855 573.23 0.0008
2014-11-14 2014-09-30 13F OSI SYSTEMS COM 671044105 2,001 -77 -3.71 127 -8.63 0.0001
2014-08-14 2014-06-30 13F OSI SYSTEMS COM 671044105 2,078 -4,957 -70.46 139 -66.98 0.0001
2014-05-15 2014-03-31 13F OSI SYSTEMS COM 671044105 7,035 -4,767 -40.39 421 -32.75 0.0004
2014-02-14 2013-12-31 13F OSI SYSTEMS COM 671044105 11,802 10,039 569.43 626 374.24 0.0006
2013-11-14 2013-09-30 13F OSI SYSTEMS COM 671044105 1,763 -212 -10.73 132 3.94 0.0001
2013-08-14 2013-06-30 13F OSI SYSTEMS COM 671044105 1,975 1,975 127 0.0001
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.