OSI Systems, Inc.
DE ˙ DB ˙ US6710441055
180,25 € ↓ -0,35 (-0,19%)
2026-06-04
DEL PRIS
SecurityDE:OS2 / OSI Systems, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership876,504 shares
Ownership 4.90%
Dimensional Fund Advisors Lp ownership in OS2 / OSI Systems, Inc.

2021-02-12 - Dimensional Fund Advisors Lp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 876,504 shares of OSI Systems, Inc. (DE:OS2). This represents 4.9 percent ownership of the company. In their previous filing dated 2020-02-12 , Dimensional Fund Advisors Lp had reported owning 1,020,878 shares, indicating a decrease of -14.14 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)
2021-02-12 2021-02-12 13G/A 1,020,878 876,504 -14.14 4.90 -11.87
2020-02-12 2020-02-12 13G/A 1,083,252 1,020,878 -5.76 5.56 -6.87
2019-02-08 2019-02-08 13G/A 1,079,164 1,083,252 0.38 5.97 4.92
2018-02-09 2018-02-09 13G/A 1,032,259 1,079,164 4.54 5.69 5.18
2017-02-09 2017-02-09 13G 1,032,259 5.41

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)
2026-05-07 2026-03-31 13F OSI SYSTEMS COM 671044105 395,428 -11,464 -2.82 104,992 1.16 0.0218
2026-02-12 2025-12-31 13F OSI SYSTEMS COM 671044105 406,892 -12,577 -3.00 103,790 -0.71 0.0218
2025-11-12 2025-09-30 13F OSI SYSTEMS COM 671044105 419,469 -29,941 -6.66 104,535 3.44 0.0224
2025-08-12 2025-06-30 13F OSI SYSTEMS COM 671044105 449,410 -141,364 -23.93 101,055 -11.98 0.0234
2025-05-13 2025-03-31 13F OSI SYSTEMS COM 671044105 590,774 -159,401 -21.25 114,807 -8.60 0.0285
2025-02-13 2024-12-31 13F OSI SYSTEMS COM 671044105 750,175 -21,185 -2.75 125,602 7.25 0.0302
2024-11-07 2024-09-30 13F OSI SYSTEMS COM 671044105 771,360 -21,930 -2.76 117,108 7.34 0.0284
2024-08-09 2024-06-30 13F OSI SYSTEMS COM 671044105 793,290 -11,502 -1.43 109,097 -5.08 0.0285
2024-05-10 2024-03-31 13F OSI SYSTEMS COM 671044105 804,792 -14,879 -1.82 114,940 8.66 0.0311
2024-02-07 2023-12-31 13F OSI SYSTEMS COM 671044105 819,671 18,298 2.28 105,780 11.82 0.0309
2023-11-09 2023-09-30 13F OSI SYSTEMS COM 671044105 801,373 -2,747 -0.34 94,598 -0.16 0.0310
2023-08-09 2023-06-30 13F OSI SYSTEMS COM 671044105 804,120 1,001 0.12 94,750 15.26 0.0302
2023-05-12 2023-03-31 13F OSI SYSTEMS COM 671044105 803,119 9,917 1.25 82,206 130,384.13 0.0277
2023-02-09 2022-12-31 13F OSI SYSTEMS COM 671044105 793,202 -163 -0.02 63 -99.89 0.0186
2022-11-10 2022-09-30 13F OSI SYSTEMS COM 671044105 793,365 -5,941 -0.74 57,172 -16.28 0.0219
2022-08-12 2022-06-30 13F OSI SYSTEMS COM 671044105 799,306 -9,763 -1.21 68,291 -0.84 0.0245
2022-05-13 2022-03-31 13F OSI SYSTEMS COM 671044105 809,069 5,950 0.74 68,868 -7.99 0.0212
2022-02-09 2021-12-31 13F OSI SYSTEMS COM 671044105 803,119 417 0.05 74,851 -1.64 0.0226
2021-11-12 2021-09-30 13F OSI SYSTEMS COM 671044105 802,702 736 0.09 76,097 -6.64 0.0245
2021-08-12 2021-06-30 13F OSI SYSTEMS COM 671044105 801,966 -33,078 -3.96 81,510 1.57 0.0258
2021-05-14 2021-03-31 13F OSI SYSTEMS COM 671044105 835,044 -41,460 -4.73 80,248 -1.79 0.0265
2021-03-08 2020-12-31 13F/A-2 OSI SYSTEMS COM 671044105 876,504 -41,891 -4.56 81,708 14.64 0.0295
2021-02-11 2020-12-31 13F OSI SYSTEMS COM 671044105 876,504 -41,891 81,708 29,508.5866
2020-11-12 2020-09-30 13F OSI SYSTEMS COM 671044105 918,395 -58,843 -6.02 71,276 -2.28 0.0302
2020-08-13 2020-06-30 13F OSI SYSTEMS COM 671044105 977,238 -6,117 -0.62 72,940 7.63 0.0321
2020-05-14 2020-03-31 13F OSI SYSTEMS COM 671044105 983,355 -37,523 -3.68 67,770 -34.10 0.0353
2020-02-14 2019-12-31 13F OSI SYSTEMS COM 671044105 1,020,878 -40,460 -3.81 102,843 -4.59 0.0375
2019-11-12 2019-09-30 13F OSI SYSTEMS COM 671044105 1,061,338 -7,682 -0.72 107,791 -10.47 0.0419
2019-08-13 2019-06-30 13F OSI SYSTEMS COM 671044105 1,069,020 2,730 0.26 120,402 28.90 0.0467
2019-08-12 2019-03-31 13F/A-2 OSI SYSTEMS COM 671044105 1,066,290 -16,962 -1.57 93,407 17.64 0.0372
2019-05-10 2019-03-31 13F OSI SYSTEMS COM 671044105 1,066,290 -16,962 93,407
2019-02-26 2018-12-31 13F/A-1 OSI SYSTEMS COM 671044105 1,083,252 5,210 0.48 79,403 -3.48 0.0360
2019-02-13 2018-12-31 13F OSI SYSTEMS COM 671044105 1,083,252 5,210 79,403
2018-11-13 2018-09-30 13F OSI SYSTEMS COM 671044105 1,078,042 10,432 0.98 82,265 -0.36 0.0313
2018-08-10 2018-06-30 13F OSI SYSTEMS COM 671044105 1,067,610 -3,005 -0.28 82,559 18.15 0.0329
2018-05-11 2018-03-31 13F OSI SYSTEMS COM 671044105 1,070,615 -8,549 -0.79 69,879 0.58 0.0291
2018-02-12 2017-12-31 13F OSI SYSTEMS COM 671044105 1,079,164 8,094 0.76 69,476 -29.01 0.0288
2017-11-13 2017-09-30 13F OSI SYSTEMS COM 671044105 1,071,070 36 0.00 97,863 21.59 0.0428
2017-08-11 2017-06-30 13F OSI SYSTEMS COM 671044105 1,071,034 1,642 0.15 80,488 3.12 0.0372
2017-05-12 2017-03-31 13F OSI SYSTEMS COM 671044105 1,069,392 37,133 3.60 78,055 -0.66 0.0373
2017-02-09 2016-12-31 13F OSI SYSTEMS COM 671044105 1,032,259 52,077 5.31 78,576 22.61 0.0392
2016-11-10 2016-09-30 13F OSI SYSTEMS COM 671044105 980,182 6,732 0.69 64,084 13.25 0.0346
2016-08-09 2016-06-30 13F OSI SYSTEMS COM 671044105 973,450 3,067 0.32 56,585 -10.96 0.0326
2016-05-13 2016-03-31 13F OSI SYSTEMS COM 671044105 970,383 86,812 9.83 63,551 -18.88 0.0380
2016-02-10 2015-12-31 13F OSI SYSTEMS COM 671044105 883,571 39,265 4.65 78,338 20.56 0.0488
2015-11-13 2015-09-30 13F OSI SYSTEMS COM 671044105 844,306 52,986 6.70 64,978 15.99 0.0427
2015-08-14 2015-06-30 13F OSI SYSTEMS COM 671044105 791,320 37,383 4.96 56,018 0.06 0.0343
2015-05-14 2015-03-31 13F OSI SYSTEMS COM 671044105 753,937 79,778 11.83 55,987 17.35 0.0354
2015-02-06 2014-12-31 13F OSI SYSTEMS COM 671044105 674,159 68,573 11.32 47,711 24.11 0.0313
2014-11-13 2014-09-30 13F OSI SYSTEMS COM 671044105 605,586 89,313 17.30 38,443 11.56 0.0272
2014-08-08 2014-06-30 13F OSI SYSTEMS COM 671044105 516,273 43,052 9.10 34,461 21.65 0.0240
2014-05-14 2014-03-31 13F OSI SYSTEMS COM 671044105 473,221 11,165 2.42 28,327 15.44 0.0212
2014-02-12 2013-12-31 13F OSI SYSTEMS COM 671044105 462,056 11,841 2.63 24,539 -26.81 0.0191
2013-11-13 2013-09-30 13F OSI SYSTEMS COM 671044105 450,215 7,034 1.59 33,527 17.43 0.0290
2013-08-15 2013-06-30 13F OSI SYSTEMS COM 671044105 443,181 443,181 28,550 0.0269
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.