OSI SYSTEMS INC

Ticker: OSIS CUSIP: 671044105 Class: EQTY

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 43,272 Value ($000) $11,037 Avg Close $261.19 Range $231.66 - $292.34

Q3 2025

Shares 45,651 Value ($000) $11,378 Avg Close $228.27 Range $204.00 - $249.79

Q2 2025

Shares 45,755 Value ($000) $10,288 Avg Close $213.44 Range $164.08 - $241.64

Q1 2025

Shares 45,234 Value ($000) $8,791 Avg Close $190.49 Range $150.84 - $220.00

Q4 2024

Shares 44,322 Value ($000) $7,421 Avg Close $158.52 Range $129.84 - $189.13

Q3 2024

Shares 44,969 Value ($000) $6,828 Avg Close $143.78 Range $129.18 - $158.69

Q2 2024

Shares 46,589 Value ($000) $6,407 Avg Close $137.83 Range $126.57 - $145.25

Q1 2024

Shares 46,705 Value ($000) $6,670 Avg Close $131.26 Range $120.42 - $144.03

Q4 2023

Shares 47,307 Value ($000) $6,105 Avg Close $119.08 Range $103.04 - $132.60

Q3 2023

Shares 48,430 Value ($000) $5,717 Avg Close $120.57 Range $112.19 - $139.90

Q2 2023

Shares 48,673 Value ($000) $5,735 Avg Close $114.74 Range $99.11 - $127.07

Q1 2023

Shares 52,922 Value ($000) $5 Avg Close $92.62 Range $78.35 - $102.89

Q4 2022

Shares 50,613 Value ($000) $4 Avg Close $81.40 Range $69.31 - $90.71

Q3 2022

Shares 50,454 Value ($000) $3,636 Avg Close $87.60 Range $72.02 - $103.17

Q2 2022

Shares 49,739 Value ($000) $4,250 Avg Close $82.06 Range $76.09 - $87.38

Q1 2022

Shares 49,560 Value ($000) $4,219 Avg Close $84.05 Range $76.35 - $95.63

Q4 2021

Shares 48,403 Value ($000) $4,511 Avg Close $93.81 Range $87.97 - $98.88

Q3 2021

Shares 48,071 Value ($000) $4,557 Avg Close $97.38 Range $91.08 - $101.64

Q2 2021

Shares 54,237 Value ($000) $5,513 Avg Close $97.33 Range $91.95 - $102.24

Q1 2021

Shares 49,148 Value ($000) $4,723 Avg Close $94.91 Range $89.10 - $100.67

Q4 2020

Shares 48,581 Value ($000) $4,529 Avg Close $85.48 Range $76.31 - $94.87

Q3 2020

Shares 46,349 Value ($000) $3,597 Avg Close $74.61 Range $66.11 - $81.69

Q2 2020

Shares 51,323 Value ($000) $3,831 Avg Close $73.05 Range $63.09 - $85.01

Q1 2020

Shares 55,734 Value ($000) $3,841 Avg Close $85.46 Range $49.96 - $102.61

Q4 2019

Shares 54,836 Value ($000) $5,524 Avg Close $98.82 Range $93.98 - $102.81

Q3 2019

Shares 50,585 Value ($000) $5,137 Avg Close $108.01 Range $93.05 - $117.21

Q2 2019

Shares 50,713 Value ($000) $5,712 Avg Close $100.77 Range $85.22 - $114.42

Q1 2019

Shares 50,598 Value ($000) $4,432 Avg Close $83.70 Range $70.22 - $91.19

Q4 2018

Shares 50,293 Value ($000) $3,686 Avg Close $72.14 Range $67.15 - $76.91

Q3 2018

Shares 41,837 Value ($000) $3,193 Avg Close $77.62 Range $73.70 - $82.94

Q2 2018

Shares 43,287 Value ($000) $3,347 Avg Close $69.82 Range $61.72 - $80.19

Q1 2018

Shares 42,789 Value ($000) $2,793 Avg Close $64.89 Range $50.50 - $73.28

Q4 2017

Shares 42,187 Value ($000) $2,716 Avg Close $84.03 Range $53.80 - $96.64

Q3 2017

Shares 36,312 Value ($000) $3,318 Avg Close $81.30 Range $74.96 - $92.34

Q2 2017

Shares 35,752 Value ($000) $2,687 Avg Close $75.70 Range $69.08 - $82.26

Q1 2017

Shares 38,578 Value ($000) $2,816 Avg Close $74.27 Range $69.45 - $81.55

Q4 2016

Shares 29,039 Value ($000) $2,210 Avg Close $72.10 Range $65.00 - $78.86

Q3 2016

Shares 30,311 Value ($000) $1,982 Avg Close $63.03 Range $55.76 - $69.49

Q2 2016

Shares 29,051 Value ($000) $1,689 Avg Close $55.08 Range $48.76 - $66.43

Q1 2016

Shares 34,210 Value ($000) $2,240 Avg Close $66.19 Range $48.19 - $88.33

Q4 2015

Shares 31,765 Value ($000) $2,816 Avg Close $87.50 Range $75.60 - $96.75

Q3 2015

Shares 31,030 Value ($000) $2,388 Avg Close $72.21 Range $66.94 - $79.28

Q2 2015

Shares 29,639 Value ($000) $2,098 Avg Close $72.33 Range $66.03 - $76.70

Q1 2015

Shares 30,884 Value ($000) $2,293 Avg Close $71.68 Range $66.90 - $75.00

Q4 2014

Shares 29,939 Value ($000) $2,119 Avg Close $68.20 Range $58.54 - $74.79

Q3 2014

Shares 29,779 Value ($000) $1,890 Avg Close $66.39 Range $62.10 - $70.27

Q2 2014

Shares 29,599 Value ($000) $1,976 Avg Close $59.67 Range $52.68 - $67.44

Q1 2014

Shares 24,560 Value ($000) $1,470 Avg Close $59.85 Range $51.85 - $66.78

Q4 2013

Shares 25,860 Value ($000) $1,373 Avg Close $68.42 Range $39.00 - $78.50

Q3 2013

Shares 25,970 Value ($000) $1,934 Avg Close $71.00 Range $63.20 - $76.25

Q2 2013

Shares 26,564 Value ($000) $1,711 Avg Close $58.30 Range $48.10 - $67.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	43,272	$11,037	$261.19	$231.66 - $292.34
Q3 2025	45,651	$11,378	$228.27	$204.00 - $249.79
Q2 2025	45,755	$10,288	$213.44	$164.08 - $241.64
Q1 2025	45,234	$8,791	$190.49	$150.84 - $220.00
Q4 2024	44,322	$7,421	$158.52	$129.84 - $189.13
Q3 2024	44,969	$6,828	$143.78	$129.18 - $158.69
Q2 2024	46,589	$6,407	$137.83	$126.57 - $145.25
Q1 2024	46,705	$6,670	$131.26	$120.42 - $144.03
Q4 2023	47,307	$6,105	$119.08	$103.04 - $132.60
Q3 2023	48,430	$5,717	$120.57	$112.19 - $139.90
Q2 2023	48,673	$5,735	$114.74	$99.11 - $127.07
Q1 2023	52,922	$5	$92.62	$78.35 - $102.89
Q4 2022	50,613	$4	$81.40	$69.31 - $90.71
Q3 2022	50,454	$3,636	$87.60	$72.02 - $103.17
Q2 2022	49,739	$4,250	$82.06	$76.09 - $87.38
Q1 2022	49,560	$4,219	$84.05	$76.35 - $95.63
Q4 2021	48,403	$4,511	$93.81	$87.97 - $98.88
Q3 2021	48,071	$4,557	$97.38	$91.08 - $101.64
Q2 2021	54,237	$5,513	$97.33	$91.95 - $102.24
Q1 2021	49,148	$4,723	$94.91	$89.10 - $100.67
Q4 2020	48,581	$4,529	$85.48	$76.31 - $94.87
Q3 2020	46,349	$3,597	$74.61	$66.11 - $81.69
Q2 2020	51,323	$3,831	$73.05	$63.09 - $85.01
Q1 2020	55,734	$3,841	$85.46	$49.96 - $102.61
Q4 2019	54,836	$5,524	$98.82	$93.98 - $102.81
Q3 2019	50,585	$5,137	$108.01	$93.05 - $117.21
Q2 2019	50,713	$5,712	$100.77	$85.22 - $114.42
Q1 2019	50,598	$4,432	$83.70	$70.22 - $91.19
Q4 2018	50,293	$3,686	$72.14	$67.15 - $76.91
Q3 2018	41,837	$3,193	$77.62	$73.70 - $82.94
Q2 2018	43,287	$3,347	$69.82	$61.72 - $80.19
Q1 2018	42,789	$2,793	$64.89	$50.50 - $73.28
Q4 2017	42,187	$2,716	$84.03	$53.80 - $96.64
Q3 2017	36,312	$3,318	$81.30	$74.96 - $92.34
Q2 2017	35,752	$2,687	$75.70	$69.08 - $82.26
Q1 2017	38,578	$2,816	$74.27	$69.45 - $81.55
Q4 2016	29,039	$2,210	$72.10	$65.00 - $78.86
Q3 2016	30,311	$1,982	$63.03	$55.76 - $69.49
Q2 2016	29,051	$1,689	$55.08	$48.76 - $66.43
Q1 2016	34,210	$2,240	$66.19	$48.19 - $88.33
Q4 2015	31,765	$2,816	$87.50	$75.60 - $96.75
Q3 2015	31,030	$2,388	$72.21	$66.94 - $79.28
Q2 2015	29,639	$2,098	$72.33	$66.03 - $76.70
Q1 2015	30,884	$2,293	$71.68	$66.90 - $75.00
Q4 2014	29,939	$2,119	$68.20	$58.54 - $74.79
Q3 2014	29,779	$1,890	$66.39	$62.10 - $70.27
Q2 2014	29,599	$1,976	$59.67	$52.68 - $67.44
Q1 2014	24,560	$1,470	$59.85	$51.85 - $66.78
Q4 2013	25,860	$1,373	$68.42	$39.00 - $78.50
Q3 2013	25,970	$1,934	$71.00	$63.20 - $76.25
Q2 2013	26,564	$1,711	$58.30	$48.10 - $67.50