OSI Systems, Inc.
DE ˙ DB ˙ US6710441055
180,60 € ↓ -0,75 (-0,41%)
2026-06-03
AKTIENPREIS
SecurityDE:OS2 / OSI Systems, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership2,389,828 shares
Ownership 14.20%
BlackRock, Inc. ownership in OS2 / OSI Systems, Inc.

2025-07-18 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,389,828 shares of OSI Systems, Inc. (DE:OS2). This represents 14.2 percent ownership of the company. In their previous filing dated 2024-01-22 , BlackRock, Inc. had reported owning 2,644,390 shares, indicating a decrease of -9.63 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-07-18 2025-07-18 13G/A 2,644,390 2,389,828 -9.63 14.20 -8.97
2024-01-22 2024-01-22 13G/A 3,293,587 2,644,390 -19.71 15.60 -20.00
2023-01-23 2023-01-23 13G 3,437,183 3,293,587 -4.18 19.50 1.56
2022-01-27 2022-01-27 13G/A 3,437,183 3,437,183 0.00 19.20 0.00
2022-01-26 2022-01-26 13G 3,440,096 3,437,183 -0.08 19.20 0.00
2021-01-25 2021-01-25 13G/A 3,023,339 3,440,096 13.78 19.20 16.36
2020-02-10 2020-02-10 13G/A 2,775,294 3,023,339 8.94 16.50 7.84
2019-02-11 2019-02-11 13G/A 2,241,995 2,775,294 23.79 15.30 29.66
2018-02-08 2018-02-08 13G/A 2,076,799 2,241,995 7.95 11.80 8.26
2017-01-17 2017-01-17 13G/A 2,157,235 2,076,799 -3.73 10.90 0.00
2016-01-08 2016-01-08 13G/A 2,157,235 10.90
2015-01-09 2015-01-09 13G/A 2,216,048 11.20
2014-01-10 2014-01-10 13G/A 2,521,422 12.60
2013-11-07 2013-11-07 13G/A 2,015,052 10.05
2013-02-08 2013-02-08 13G/A 1,523,261 7.62
2012-02-10 2012-02-10 13G/A 1,417,711 7.22

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F OSI SYSTEMS COM 671044105 2,529,623 -32,279 -1.26 671,640 2.79 0.0009
2026-02-12 2025-12-31 13F OSI SYSTEMS COM 671044105 2,561,902 57,646 2.30 653,439 4.69 0.0110
2025-11-12 2025-09-30 13F OSI SYSTEMS COM 671044105 2,504,256 -452 -0.02 624,161 10.82 0.0109
2025-08-12 2025-06-30 13F OSI SYSTEMS COM 671044105 2,504,708 -54,622 -2.13 563,209 13.23 0.0107
2025-05-02 2025-03-31 13F OSI SYSTEMS COM 671044105 2,559,330 -123,310 -4.60 497,380 10.74 0.0104
2025-02-07 2024-12-31 13F OSI SYSTEMS COM 671044105 2,682,640 28,078 1.06 449,154 11.44 0.0091
2024-11-13 2024-09-30 13F OSI SYSTEMS COM 671044105 2,654,562 45,457 1.74 403,042 12.33 0.0085
2024-08-13 2024-06-30 13F OSI SYSTEMS COM 671044105 2,609,105 -46,216 -1.74 358,804 -5.39 0.0081
2024-05-10 2024-03-31 13F OSI SYSTEMS COM 671044105 2,655,321 10,931 0.41 379,233 11.13 0.0088
2024-02-13 2023-12-31 13F OSI SYSTEMS COM 671044105 2,644,390 17,939 0.68 341,259 10.07 0.0087
2023-11-13 2023-09-30 13F OSI SYSTEMS COM 671044105 2,626,451 8,759 0.33 310,026 0.51 0.0089
2023-08-11 2023-06-30 13F OSI SYSTEMS COM 671044105 2,617,692 -349,048 -11.77 308,443 1.57 0.0085
2023-05-12 2023-03-31 13F OSI SYSTEMS COM 671044105 2,966,740 -326,847 -9.92 303,676 15.95 0.0090
2023-02-13 2022-12-31 13F OSI SYSTEMS COM 671044105 3,293,587 7,030 0.21 261,906 10.59 0.0082
2022-11-14 2022-09-30 13F OSI SYSTEMS COM 671044105 3,286,557 35,807 1.10 236,829 -14.73 0.0081
2022-08-12 2022-06-30 13F OSI SYSTEMS COM 671044105 3,250,750 -161,263 -4.73 277,742 -4.37 0.0089
2022-05-12 2022-03-31 13F OSI SYSTEMS COM 671044105 3,412,013 -25,170 -0.73 290,430 -9.34 0.0078
2022-02-10 2021-12-31 13F OSI SYSTEMS COM 671044105 3,437,183 -11,416 -0.33 320,345 -2.01 0.0082
2021-11-09 2021-09-30 13F OSI SYSTEMS COM 671044105 3,448,599 -75,552 -2.14 326,927 -8.73 0.0092
2021-08-11 2021-06-30 13F OSI SYSTEMS COM 671044105 3,524,151 18,562 0.53 358,195 6.33 0.0100
2021-05-07 2021-03-31 13F OSI SYSTEMS COM 671044105 3,505,589 65,493 1.90 336,886 5.05 0.0099
2021-02-05 2020-12-31 13F OSI SYSTEMS COM 671044105 3,440,096 277,946 8.79 320,684 30.67 0.0102
2020-11-06 2020-09-30 13F OSI SYSTEMS COM 671044105 3,162,150 212,852 7.22 245,415 11.48 0.0091
2020-08-14 2020-06-30 13F OSI SYSTEMS COM 671044105 2,949,298 -27,796 -0.93 220,134 7.29 0.0088
2020-05-01 2020-03-31 13F OSI SYSTEMS COM 671044105 2,977,094 -46,245 -1.53 205,182 -32.63 0.0100
2020-02-13 2019-12-31 13F OSI SYSTEMS COM 671044105 3,023,339 95,812 3.27 304,572 2.44 0.0117
2019-11-08 2019-09-30 13F OSI SYSTEMS COM 671044105 2,927,527 63,281 2.21 297,321 -7.84 0.0125
2019-08-22 2019-06-30 13F/A-1 OSI SYSTEMS COM 671044105 2,864,246 43,991 1.56 322,599 30.58 0.0138
2019-08-13 2019-06-30 13F OSI SYSTEMS COM 671044105 2,864,246 43,991 322,599
2019-05-09 2019-03-31 13F OSI SYSTEMS COM 671044105 2,820,255 44,961 1.62 247,055 21.45 0.0110
2019-02-08 2018-12-31 13F OSI SYSTEMS COM 671044105 2,775,294 18,208 0.66 203,429 -3.31 0.0103
2018-11-09 2018-09-30 13F OSI SYSTEMS COM 671044105 2,757,086 -5,197 -0.19 210,393 -1.51 0.0091
2018-08-09 2018-06-30 13F OSI SYSTEMS COM 671044105 2,762,283 -8,782 -0.32 213,608 18.10 0.0098
2018-05-09 2018-03-31 13F OSI SYSTEMS COM 671044105 2,771,065 529,070 23.60 180,867 25.31 0.0086
2018-02-09 2017-12-31 13F OSI SYSTEMS COM 671044105 2,241,995 92,505 4.30 144,340 -26.51 0.0069
2017-11-14 2017-09-30 13F OSI SYSTEMS COM 671044105 2,149,490 34,853 1.65 196,399 23.59 0.0099
2017-08-10 2017-06-30 13F OSI SYSTEMS COM 671044105 2,114,637 -133,838 -5.95 158,914 -3.17 0.0084
2017-05-12 2017-03-31 13F OSI SYSTEMS COM 671044105 2,248,475 2,244,137 51,732.07 164,115 49,631.82 0.0090
2017-02-10 2016-12-31 13F OSI SYSTEMS COM 671044105 4,338 -456 -9.51 330 5.43 0.0005
2016-11-08 2016-09-30 13F OSI SYSTEMS COM 671044105 4,794 -11,713 -70.96 313 -67.36 0.0004
2016-08-10 2016-06-30 13F OSI SYSTEMS COM 671044105 16,507 -217 -1.30 959 -12.50 0.0014
2016-05-10 2016-03-31 13F OSI SYSTEMS COM 671044105 16,724 -6,279 -27.30 1,096 -46.25 0.0018
2016-02-11 2015-12-31 13F OSI SYSTEMS COM 671044105 23,003 -7,779 -25.27 2,039 -13.97 0.0030
2015-11-13 2015-09-30 13F OSI SYSTEMS COM 671044105 30,782 4,982 19.31 2,370 29.79 0.0037
2015-08-07 2015-06-30 13F OSI SYSTEMS COM 671044105 25,800 14,353 125.39 1,826 114.82 0.0027
2015-05-13 2015-03-31 13F OSI SYSTEMS COM 671044105 11,447 0 0.00 850 4.81 0.0012
2015-02-09 2014-12-31 13F OSI SYSTEMS COM 671044105 11,447 -1,256 -9.89 811 0.62 0.0012
2014-10-29 2014-09-30 13F OSI SYSTEMS COM 671044105 12,703 1,977 18.43 806 12.57 0.0012
2014-08-06 2014-06-30 13F OSI SYSTEMS COM 671044105 10,726 -50 -0.46 716 10.84 0.0011
2014-05-02 2014-03-31 13F OSI SYSTEMS COM 671044105 10,776 -470 -4.18 646 8.21 0.0010
2014-02-12 2013-12-31 13F OSI SYSTEMS COM 671044105 11,246 10,595 1,627.50 597 1,143.75 0.0010
2013-11-12 2013-09-30 13F OSI SYSTEMS COM 671044105 651 0 0.00 48 14.29 0.0001
2013-08-13 2013-06-30 13F OSI SYSTEMS COM 671044105 651 651 42 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.