OSI Systems, Inc.
DE ˙ DB ˙ US6710441055
180,25 € ↓ -0,35 (-0,19%)
2026-06-04
DEL PRIS
SecurityDE:OS2 / OSI Systems, Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership10,183 shares
Latest Disclosed Value $ 2,703,689
Marshall Wace, Llp ownership in OS2 / OSI Systems, Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 10,183 shares of OSI Systems, Inc. (DE:OS2) valued at $2,321,724 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of OSI Systems, Inc.. The current value of the position is $1,835,486 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)
2026-05-14 2026-03-31 13F OSI SYSTEMS COMMON STOCK 671044105 10,183 10,183 2,704 0.0013
2026-02-13 2025-12-31 13F OSI SYSTEMS COMMON STOCK 671044105 0 -27,083 -100.00 0 -100.00
2025-11-13 2025-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 27,083 6,083 28.97 6,750 42.95 0.0068
2025-08-13 2025-06-30 13F OSI SYSTEMS COMMON STOCK 671044105 21,000 -23,864 -53.19 4,722 -45.84 0.0053
2025-05-15 2025-03-31 13F OSI SYSTEMS COMMON STOCK 671044105 44,864 15,285 51.68 8,719 76.05 0.0111
2025-02-13 2024-12-31 13F OSI SYSTEMS COMMON STOCK 671044105 29,579 1,421 5.05 4,952 15.84 0.0060
2024-11-14 2024-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 28,158 -22,542 -44.46 4,275 -38.68 0.0052
2024-08-14 2024-06-30 13F OSI SYSTEMS COMMON STOCK 671044105 50,700 -126,776 -71.43 6,972 -72.49 0.0093
2024-05-15 2024-03-31 13F OSI SYSTEMS COMMON STOCK 671044105 177,476 -37,580 -17.47 25,347 -8.67 0.0386
2024-02-14 2023-12-31 13F OSI SYSTEMS COMMON STOCK 671044105 215,056 193,624 903.43 27,753 997.35 0.0470
2023-11-14 2023-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 21,432 3,991 22.88 2,530 23.07 0.0051
2023-08-14 2023-06-30 13F OSI SYSTEMS COMMON STOCK 671044105 17,441 17,441 2,055 0.0040
2021-05-17 2021-03-31 13F OSI SYSTEMS COMMON STOCK 671044105 0 -10,101 -100.00 0 -100.00
2021-02-16 2020-12-31 13F OSI SYSTEMS COMMON STOCK 671044105 10,101 -125,055 -92.53 942 -91.02 0.0051
2020-11-16 2020-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 135,156 75,524 126.65 10,489 135.65 0.0671
2020-08-13 2020-06-30 13F OSI SYSTEMS COMMON STOCK 671044105 59,632 59,632 4,451 0.0312
2020-02-14 2019-12-31 13F OSI SYSTEMS COMMON STOCK 671044105 0 -111,022 -100.00 0 -100.00
2019-11-14 2019-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 111,022 111,022 11,276 0.0886
2019-02-14 2018-12-31 13F OSI SYSTEMS COMMON STOCK 671044105 0 -49,079 -100.00 0 -100.00
2018-12-06 2018-09-30 13F/A-1 OSI SYSTEMS COMMON STOCK 671044105 49,079 49,079 3,745 0.0319
2018-11-14 2018-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 49,079 49,079 3,745
2016-11-10 2016-09-30 13F OSI SYSTEMS COMMON STOCK 671044105 0 -6,839 -100.00 0 -100.00
2016-08-12 2016-06-30 13F OSI SYSTEMS COMMON STOCK 671044105 6,839 6,839 398 0.0033
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.