What does CUSIP 671044105 represent in this 13F holders report?

CUSIP 671044105 is the security identifier for OSIS - OSI SYSTEMS INC - Common Stock used to aggregate holder disclosures.

How many institutions held OSIS - OSI SYSTEMS INC - Common Stock in Q1 2017?

181 institutional investors reported OSIS - OSI SYSTEMS INC - Common Stock for Q1 2017. Use the holders table for investor-level position and value details.

OSI SYSTEMS INC - Common Stock (OSIS)

CUSIP: 671044105

Q1 2017 13F Holders as of 31 Mar 2017

Type / Class: Equity / Common Stock
Shares outstanding: 16,432,213
Total 13F shares: 19,380,274
Share change: +2,124,461
Total reported value: $1,414,453,344
Put/Call ratio: 64%
Price per share: $72.99
Number of holders: 181
Value change: +$153,782,836
Number of buys: 95
Number of sells: 73

Quarterly Holders Quick Answers

What is CUSIP 671044105?
CUSIP 671044105 identifies OSIS - OSI SYSTEMS INC - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2017
Previous quarter: Q4 2016

Recent filing periods for CUSIP 671044105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of OSIS - OSI SYSTEMS INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
JANUS HENDERSON INVESTORS US LLC	13F	Company	9.8%	1,609,592	$122,522,000	—	31 Dec 2016	13F
VANGUARD GROUP INC	13F	Company	9.3%	1,530,071	$116,469,000	—	31 Dec 2016	13F
BlackRock Fund Advisors	13F	Company	8.9%	1,456,124	$110,840,000	—	31 Dec 2016	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	6.3%	1,032,259	$78,576,000	—	31 Dec 2016	13F
EARNEST PARTNERS LLC	13F	Company	5.8%	959,780	$73,058,000	—	31 Dec 2016	13F
WESTWOOD HOLDINGS GROUP INC	13F	Company	3.7%	614,246	$46,757,000	—	31 Dec 2016	13F
WELLS FARGO & COMPANY/MN	13F	Company	3.5%	573,539	$43,657,000	—	31 Dec 2016	13F
Clearbridge Investments, LLC	13F	Company	3.5%	571,798	$43,525,000	—	31 Dec 2016	13F
ABERDEEN ASSET MANAGEMENT PLC/UK	13F	Company	3.3%	540,026	$41,107,000	—	31 Dec 2016	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	2.9%	473,660	$36,055,000	—	31 Dec 2016	13F
CREDIT SUISSE AG/	13F	Company	2.8%	468,102	$35,632,000	—	31 Dec 2016	13F
DARUMA CAPITAL MANAGEMENT LLC	13F	Company	2.8%	463,278	$35,265,000	—	31 Dec 2016	13F
Granahan Investment Management, LLC	13F	Company	2.6%	425,859	$32,416,000	—	31 Dec 2016	13F
NORGES BANK	13F	Company	2.4%	397,272	$30,240,000	—	31 Dec 2016	13F
STATE STREET CORP	13F	Company	2.4%	391,254	$29,781,000	—	31 Dec 2016	13F
PNC FINANCIAL SERVICES GROUP, INC.	13F	Company	2.3%	379,618	$28,896,000	—	31 Dec 2016	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	2.2%	362,300	$27,578,000	—	31 Dec 2016	13F
GOLDMAN SACHS GROUP INC	13F	Company	2.2%	353,879	$26,937,000	—	31 Dec 2016	13F
NEUMEIER POMA INVESTMENT COUNSEL LLC	13F	Company	2%	323,880	$24,654,000	—	31 Dec 2016	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	2%	323,544	$24,628,000	—	31 Dec 2016	13F
Neuberger Berman Group LLC	13F	Company	1.9%	319,929	$24,353,000	—	31 Dec 2016	13F
Bank of New York Mellon Corp	13F	Company	1.9%	310,571	$23,641,000	—	31 Dec 2016	13F
PEREGRINE CAPITAL MANAGEMENT LLC	13F	Company	1.8%	289,790	$22,059,000	—	31 Dec 2016	13F
TREMBLANT CAPITAL GROUP	13F	Company	1.7%	280,956	$21,386,000	—	31 Dec 2016	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	1.6%	256,596	$19,532,000	—	31 Dec 2016	13F
AMERIPRISE FINANCIAL INC	13F	Company	1.4%	229,474	$17,469,000	—	31 Dec 2016	13F
NORTHERN TRUST CORP	13F	Company	1.4%	228,231	$17,373,000	—	31 Dec 2016	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.3%	213,888	$16,281,000	—	31 Dec 2016	13F
River Road Asset Management, LLC	13F	Company	1.1%	177,870	$13,539,000	—	31 Dec 2016	13F
MORGAN STANLEY	13F	Company	1%	172,204	$13,108,000	—	31 Dec 2016	13F
G2 Investment Partners Management LLC	13F	Company	0.93%	153,028	$11,648,000	—	31 Dec 2016	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.83%	136,665	$10,402,000	—	31 Dec 2016	13F
Invesco Ltd.	13F	Company	0.82%	134,935	$10,271,000	—	31 Dec 2016	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.81%	132,816	$10,110,000	—	31 Dec 2016	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.77%	127,053	$9,671,000	—	31 Dec 2016	13F
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	13F	Company	0.77%	126,631	$9,639,000	—	31 Dec 2016	13F
SG Capital Management LLC	13F	Company	0.72%	118,255	$9,002,000	—	31 Dec 2016	13F
Shannon River Fund Management LLC	13F	Company	0.71%	117,220	$8,923,000	—	31 Dec 2016	13F
Prospect Capital Advisors, LLC	13F	Company	0.6%	98,450	$7,494,000	—	31 Dec 2016	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.59%	96,250	$7,327,000	—	31 Dec 2016	13F
BlackRock Investment Management, LLC	13F	Company	0.58%	95,783	$7,291,000	—	31 Dec 2016	13F
DEUTSCHE BANK AG\	13F	Company	0.56%	92,113	$7,010,000	—	31 Dec 2016	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	0.52%	86,233	$6,564,000	—	31 Dec 2016	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.49%	80,105	$6,098,000	—	31 Dec 2016	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	0.47%	77,390	$5,891,000	—	31 Dec 2016	13F
MACQUARIE GROUP LTD	13F	Company	0.46%	75,145	$5,720,000	—	31 Dec 2016	13F
RAINIER INVESTMENT MANAGEMENT LLC	13F	Company	0.43%	71,140	$5,415,000	—	31 Dec 2016	13F
ZACKS INVESTMENT MANAGEMENT	13F	Company	0.42%	68,733	$5,232,000	—	31 Dec 2016	13F
Cortina Asset Management, LLC	13F	Company	0.4%	65,784	$5,007,000	—	31 Dec 2016	13F
MACKENZIE FINANCIAL CORP	13F	Company	0.39%	63,874	$4,862,000	—	31 Dec 2016	13F

Institutional Holders of OSI SYSTEMS INC - Common Stock (OSIS) as of Q1 2017

As of 31 Mar 2017, OSI SYSTEMS INC - Common Stock (OSIS) was held by 181 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 19,380,274 shares. The largest 10 holders included BlackRock Inc., VANGUARD GROUP INC, JANUS CAPITAL MANAGEMENT LLC, DIMENSIONAL FUND ADVISORS LP, EARNEST PARTNERS LLC, DARUMA CAPITAL MANAGEMENT LLC, ABERDEEN ASSET MANAGEMENT PLC/UK, WESTWOOD HOLDINGS GROUP INC, WELLS FARGO & COMPANY/MN, and GOLDMAN SACHS GROUP INC. This page lists 181 institutional shareholders reporting positions in this security for the Q1 2017 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2017 vs Q4 2016 Across Filers

Q4 2016 holders

179

Q1 2017 holders

181

Holder diff

Investor	Q4 2016 Shares	Q1 2017 Shares	Share Diff	Share Chg %	Q4 2016 Value $	Q1 2017 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.