OSI SYSTEMS INC

Ticker: OSIS CUSIP: 671044105 Class: EQTY

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 171,308 Value ($000) $43,694 Avg Close $261.19 Range $231.66 - $292.34

Q3 2025

Shares 176,279 Value ($000) $43,936 Avg Close $228.27 Range $204.00 - $249.79

Q2 2025

Shares 178,451 Value ($000) $40,126 Avg Close $213.44 Range $164.08 - $241.64

Q1 2025

Shares 180,263 Value ($000) $35,032 Avg Close $190.49 Range $150.84 - $220.00

Q4 2024

Shares 181,974 Value ($000) $30,468 Avg Close $158.52 Range $129.84 - $189.13

Q3 2024

Shares 164,053 Value ($000) $24,908 Avg Close $143.78 Range $129.18 - $158.69

Q2 2024

Shares 169,332 Value ($000) $23,287 Avg Close $137.83 Range $126.57 - $145.25

Q1 2024

Shares 170,005 Value ($000) $24,280 Avg Close $131.26 Range $120.42 - $144.03

Q4 2023

Shares 173,854 Value ($000) $22,436 Avg Close $119.08 Range $103.04 - $132.60

Q3 2023

Shares 175,987 Value ($000) $20,774 Avg Close $120.57 Range $112.19 - $139.90

Q2 2023

Shares 177,883 Value ($000) $20,960 Avg Close $114.74 Range $99.11 - $127.07

Q1 2023

Shares 170,919 Value ($000) $17,495 Avg Close $92.62 Range $78.35 - $102.89

Q4 2022

Shares 177,439 Value ($000) $14,110 Avg Close $81.40 Range $69.31 - $90.71

Q3 2022

Shares 178,611 Value ($000) $12,871 Avg Close $87.60 Range $72.02 - $103.17

Q2 2022

Shares 180,757 Value ($000) $15,443 Avg Close $82.06 Range $76.09 - $87.38

Q1 2022

Shares 193,743 Value ($000) $16,492 Avg Close $84.05 Range $76.35 - $95.63

Q4 2021

Shares 233,059 Value ($000) $21,721 Avg Close $93.81 Range $87.97 - $98.88

Q3 2021

Shares 238,714 Value ($000) $22,630 Avg Close $97.38 Range $91.08 - $101.64

Q2 2021

Shares 240,370 Value ($000) $24,431 Avg Close $97.33 Range $91.95 - $102.24

Q1 2021

Shares 217,751 Value ($000) $20,926 Avg Close $94.91 Range $89.10 - $100.67

Q4 2020

Shares 226,799 Value ($000) $21,142 Avg Close $85.48 Range $76.31 - $94.87

Q3 2020

Shares 233,572 Value ($000) $18,127 Avg Close $74.61 Range $66.11 - $81.69

Q2 2020

Shares 245,713 Value ($000) $18,340 Avg Close $73.05 Range $63.09 - $85.01

Q1 2020

Shares 240,547 Value ($000) $16,579 Avg Close $85.46 Range $49.96 - $102.61

Q4 2019

Shares 237,824 Value ($000) $23,958 Avg Close $98.82 Range $93.98 - $102.81

Q3 2019

Shares 243,360 Value ($000) $24,716 Avg Close $108.01 Range $93.05 - $117.21

Q2 2019

Shares 236,027 Value ($000) $26,584 Avg Close $100.77 Range $85.22 - $114.42

Q1 2019

Shares 232,589 Value ($000) $20,375 Avg Close $83.70 Range $70.22 - $91.19

Q4 2018

Shares 230,113 Value ($000) $16,866 Avg Close $72.14 Range $67.15 - $76.91

Q3 2018

Shares 232,691 Value ($000) $17,756 Avg Close $77.62 Range $73.70 - $82.94

Q2 2018

Shares 233,426 Value ($000) $18,050 Avg Close $69.82 Range $61.72 - $80.19

Q1 2018

Shares 245,825 Value ($000) $16,045 Avg Close $64.89 Range $50.50 - $73.28

Q4 2017

Shares 246,984 Value ($000) $15,901 Avg Close $84.03 Range $53.80 - $96.64

Q3 2017

Shares 247,010 Value ($000) $22,569 Avg Close $81.30 Range $74.96 - $92.34

Q2 2017

Shares 251,527 Value ($000) $18,902 Avg Close $75.70 Range $69.08 - $82.26

Q1 2017

Shares 233,002 Value ($000) $17,007 Avg Close $74.27 Range $69.45 - $81.55

Q4 2016

Shares 228,231 Value ($000) $17,373 Avg Close $72.10 Range $65.00 - $78.86

Q3 2016

Shares 245,563 Value ($000) $16,054 Avg Close $63.03 Range $55.76 - $69.49

Q2 2016

Shares 235,253 Value ($000) $13,675 Avg Close $55.08 Range $48.76 - $66.43

Q1 2016

Shares 256,688 Value ($000) $17,131 Avg Close $66.19 Range $48.19 - $88.33

Q4 2015

Shares 271,338 Value ($000) $24,057 Avg Close $87.50 Range $75.60 - $96.75

Q3 2015

Shares 248,268 Value ($000) $19,108 Avg Close $72.21 Range $66.94 - $79.28

Q2 2015

Shares 226,628 Value ($000) $16,043 Avg Close $72.33 Range $66.03 - $76.70

Q1 2015

Shares 255,863 Value ($000) $19,000 Avg Close $71.68 Range $66.90 - $75.00

Q4 2014

Shares 251,230 Value ($000) $17,779 Avg Close $68.20 Range $58.54 - $74.79

Q3 2014

Shares 265,281 Value ($000) $16,840 Avg Close $66.39 Range $62.10 - $70.27

Q2 2014

Shares 250,414 Value ($000) $16,715 Avg Close $59.67 Range $52.68 - $67.44

Q1 2014

Shares 299,096 Value ($000) $17,904 Avg Close $59.85 Range $51.85 - $66.78

Q4 2013

Shares 294,609 Value ($000) $15,647 Avg Close $68.42 Range $39.00 - $78.50

Q3 2013

Shares 308,783 Value ($000) $22,967 Avg Close $71.00 Range $63.20 - $76.25

Q2 2013

Shares 318,740 Value ($000) $20,533 Avg Close $58.30 Range $48.10 - $67.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	171,308	$43,694	$261.19	$231.66 - $292.34
Q3 2025	176,279	$43,936	$228.27	$204.00 - $249.79
Q2 2025	178,451	$40,126	$213.44	$164.08 - $241.64
Q1 2025	180,263	$35,032	$190.49	$150.84 - $220.00
Q4 2024	181,974	$30,468	$158.52	$129.84 - $189.13
Q3 2024	164,053	$24,908	$143.78	$129.18 - $158.69
Q2 2024	169,332	$23,287	$137.83	$126.57 - $145.25
Q1 2024	170,005	$24,280	$131.26	$120.42 - $144.03
Q4 2023	173,854	$22,436	$119.08	$103.04 - $132.60
Q3 2023	175,987	$20,774	$120.57	$112.19 - $139.90
Q2 2023	177,883	$20,960	$114.74	$99.11 - $127.07
Q1 2023	170,919	$17,495	$92.62	$78.35 - $102.89
Q4 2022	177,439	$14,110	$81.40	$69.31 - $90.71
Q3 2022	178,611	$12,871	$87.60	$72.02 - $103.17
Q2 2022	180,757	$15,443	$82.06	$76.09 - $87.38
Q1 2022	193,743	$16,492	$84.05	$76.35 - $95.63
Q4 2021	233,059	$21,721	$93.81	$87.97 - $98.88
Q3 2021	238,714	$22,630	$97.38	$91.08 - $101.64
Q2 2021	240,370	$24,431	$97.33	$91.95 - $102.24
Q1 2021	217,751	$20,926	$94.91	$89.10 - $100.67
Q4 2020	226,799	$21,142	$85.48	$76.31 - $94.87
Q3 2020	233,572	$18,127	$74.61	$66.11 - $81.69
Q2 2020	245,713	$18,340	$73.05	$63.09 - $85.01
Q1 2020	240,547	$16,579	$85.46	$49.96 - $102.61
Q4 2019	237,824	$23,958	$98.82	$93.98 - $102.81
Q3 2019	243,360	$24,716	$108.01	$93.05 - $117.21
Q2 2019	236,027	$26,584	$100.77	$85.22 - $114.42
Q1 2019	232,589	$20,375	$83.70	$70.22 - $91.19
Q4 2018	230,113	$16,866	$72.14	$67.15 - $76.91
Q3 2018	232,691	$17,756	$77.62	$73.70 - $82.94
Q2 2018	233,426	$18,050	$69.82	$61.72 - $80.19
Q1 2018	245,825	$16,045	$64.89	$50.50 - $73.28
Q4 2017	246,984	$15,901	$84.03	$53.80 - $96.64
Q3 2017	247,010	$22,569	$81.30	$74.96 - $92.34
Q2 2017	251,527	$18,902	$75.70	$69.08 - $82.26
Q1 2017	233,002	$17,007	$74.27	$69.45 - $81.55
Q4 2016	228,231	$17,373	$72.10	$65.00 - $78.86
Q3 2016	245,563	$16,054	$63.03	$55.76 - $69.49
Q2 2016	235,253	$13,675	$55.08	$48.76 - $66.43
Q1 2016	256,688	$17,131	$66.19	$48.19 - $88.33
Q4 2015	271,338	$24,057	$87.50	$75.60 - $96.75
Q3 2015	248,268	$19,108	$72.21	$66.94 - $79.28
Q2 2015	226,628	$16,043	$72.33	$66.03 - $76.70
Q1 2015	255,863	$19,000	$71.68	$66.90 - $75.00
Q4 2014	251,230	$17,779	$68.20	$58.54 - $74.79
Q3 2014	265,281	$16,840	$66.39	$62.10 - $70.27
Q2 2014	250,414	$16,715	$59.67	$52.68 - $67.44
Q1 2014	299,096	$17,904	$59.85	$51.85 - $66.78
Q4 2013	294,609	$15,647	$68.42	$39.00 - $78.50
Q3 2013	308,783	$22,967	$71.00	$63.20 - $76.25
Q2 2013	318,740	$20,533	$58.30	$48.10 - $67.50