What does CUSIP 45168D104 represent in this 13F holders report?

CUSIP 45168D104 is the security identifier for IDXX - IDEXX LABORATORIES INC /DE - Common Stock used to aggregate holder disclosures.

How many institutions held IDXX - IDEXX LABORATORIES INC /DE - Common Stock in Q4 2015?

345 institutional investors reported IDXX - IDEXX LABORATORIES INC /DE - Common Stock for Q4 2015. Use the holders table for investor-level position and value details.

IDEXX LABORATORIES INC /DE - Common Stock (IDXX)

CUSIP: 45168D104

Q4 2015 13F Holders as of 31 Dec 2015

Type / Class: Equity / Common Stock
Shares outstanding: 79,580,186
Total 13F shares: 89,930,874
Share change: -974,212
Total reported value: $6,557,487,487
Put/Call ratio: 166%
Price per share: $72.92
Number of holders: 345
Value change: -$72,543,183
Number of buys: 133
Number of sells: 162

Quarterly Holders Quick Answers

What is CUSIP 45168D104?
CUSIP 45168D104 identifies IDXX - IDEXX LABORATORIES INC /DE - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

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

Newer quarter: Q1 2016
Previous quarter: Q3 2015

Recent filing periods for CUSIP 45168D104:

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

Top shareholders of IDXX - IDEXX LABORATORIES INC /DE - 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
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	11%	8,576,570	$636,810,000	—	30 Sep 2015	13F
RUANE, CUNNIFF & GOLDFARB INC	13F	Company	10%	8,167,274	$606,420,000	—	30 Sep 2015	13F
BAMCO INC /NY/	13F	Company	8.9%	7,061,667	$524,329,000	—	30 Sep 2015	13F
VANGUARD GROUP INC	13F	Company	7.9%	6,271,427	$465,653,000	—	30 Sep 2015	13F
Select Equity Group, L.P.	13F	Company	5.2%	4,144,143	$307,702,618	—	30 Sep 2015	13F
BlackRock Fund Advisors	13F	Company	4%	3,220,563	$239,127,000	—	30 Sep 2015	13F
Neuberger Berman Group LLC	13F	Company	4%	3,153,955	$234,181,000	—	30 Sep 2015	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	3.3%	2,633,727	$195,554,000	—	30 Sep 2015	13F
BLAIR WILLIAM & CO/IL	13F	Company	3.2%	2,534,311	$188,172,000	—	30 Sep 2015	13F
STATE STREET CORP	13F	Company	2.9%	2,318,725	$172,165,000	—	30 Sep 2015	13F
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	13F	Company	2.8%	2,232,355	$165,752,000	—	30 Sep 2015	13F
ATLANTA CAPITAL MANAGEMENT CO L L C	13F	Company	2.7%	2,115,458	$157,073,000	—	30 Sep 2015	13F
ROYCE & ASSOCIATES LP	13F	Company	2.2%	1,770,922	$131,491,000	—	30 Sep 2015	13F
CAPITAL COUNSEL LLC/NY	13F	Company	2.1%	1,702,364	$126,401,000	—	30 Sep 2015	13F
CHILTON INVESTMENT CO INC.	13F	Company	1.9%	1,511,342	$112,217,000	—	30 Sep 2015	13F
BANK OF AMERICA CORP /DE/	13F	Company	1.9%	1,484,055	$110,191,000	—	30 Sep 2015	13F
FEDERATED HERMES, INC.	13F	Company	1.8%	1,405,021	$104,323,000	—	30 Sep 2015	13F
JPMORGAN CHASE & CO	13F	Company	1.6%	1,303,189	$96,761,000	—	30 Sep 2015	13F
Bank of New York Mellon Corp	13F	Company	1.3%	1,067,725	$79,280,000	—	30 Sep 2015	13F
NORTHERN TRUST CORP	13F	Company	1.2%	938,719	$69,700,000	—	30 Sep 2015	13F
Fundsmith LLP	13F	Company	1.1%	880,486	$65,376,000	—	30 Sep 2015	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	1%	807,343	$59,945,000	—	30 Sep 2015	13F
NORGES BANK	13F	Company	0.99%	787,378	$58,463,000	—	30 Sep 2015	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.93%	736,429	$54,679,000	—	30 Sep 2015	13F
BROWN ADVISORY INC	13F	Company	0.88%	696,881	$51,744,000	—	30 Sep 2015	13F
DAVIS SELECTED ADVISERS	13F	Company	0.78%	623,573	$46,300,000	—	30 Sep 2015	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.7%	558,600	$41,476,000	—	30 Sep 2015	13F
COLUMBUS CIRCLE INVESTORS	13F	Company	0.69%	547,518	$40,653,000	—	30 Sep 2015	13F
AMERICAN CAPITAL MANAGEMENT INC	13F	Company	0.68%	541,546	$40,210,000	—	30 Sep 2015	13F
Apex Capital Management	13F	Company	0.62%	493,237	$36,623,000	—	30 Sep 2015	13F
Geneva Advisors, LLC	13F	Company	0.62%	492,915	$36,599,000	—	30 Sep 2015	13F
BAILLIE GIFFORD & CO	13F	Company	0.6%	478,096	$35,499,000	—	30 Sep 2015	13F
CONGRESS ASSET MANAGEMENT CO	13F	Company	0.57%	450,153	$33,424,000	—	30 Sep 2015	13F
CREDIT SUISSE AG/	13F	Company	0.55%	436,101	$32,381,000	—	30 Sep 2015	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.55%	433,928	$32,219,000	—	30 Sep 2015	13F
FMR LLC	13F	Company	0.54%	428,880	$31,844,000	—	30 Sep 2015	13F
JANUS HENDERSON INVESTORS US LLC	13F	Company	0.5%	401,444	$29,808,000	—	30 Sep 2015	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.5%	395,830	$29,391,000	—	30 Sep 2015	13F
DEUTSCHE BANK AG\	13F	Company	0.49%	390,988	$29,028,000	—	30 Sep 2015	13F
Baird Financial Group, Inc.	13F	Company	0.48%	382,188	$28,377,000	—	30 Sep 2015	13F
RS INVESTMENT MANAGEMENT CO LLC	13F	Company	0.47%	370,574	$27,515,000	—	30 Sep 2015	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.42%	337,300	$25,045,000	—	30 Sep 2015	13F
J.P. Morgan Private Wealth Advisors LLC	13F	Company	0.4%	315,904	$23,456,000	—	30 Sep 2015	13F
Nationwide Fund Advisors	13F	Company	0.4%	315,093	$23,396,000	—	30 Sep 2015	13F
JANUS HENDERSON GROUP PLC	13F	Company	0.39%	309,953	$23,014,000	—	30 Sep 2015	13F
STATE OF WISCONSIN INVESTMENT BOARD	13F	Company	0.39%	307,418	$22,826,000	—	30 Sep 2015	13F
FRANKLIN RESOURCES INC	13F	Company	0.38%	300,253	$22,294,000	—	30 Sep 2015	13F
HOWLAND CAPITAL MANAGEMENT LLC	13F	Company	0.37%	293,594	$21,799,000	—	30 Sep 2015	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.37%	290,716	$21,585,000	—	30 Sep 2015	13F
BALYASNY ASSET MANAGEMENT L.P.	13F	Company	0.36%	285,958	$21,232,000	—	30 Sep 2015	13F

Institutional Holders of IDEXX LABORATORIES INC /DE - Common Stock (IDXX) as of Q4 2015

As of 31 Dec 2015, IDEXX LABORATORIES INC /DE - Common Stock (IDXX) was held by 345 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 89,930,874 shares. The largest 10 holders included PRICE T ROWE ASSOCIATES INC /MD/, RUANE, CUNNIFF & GOLDFARB INC, BAMCO INC /NY/, VANGUARD GROUP INC, Select Equity Group, L.P., BlackRock Fund Advisors, Neuberger Berman Group LLC, BlackRock Institutional Trust Company, N.A., BLAIR WILLIAM & CO/IL, and Fundsmith LLP. This page lists 345 institutional shareholders reporting positions in this security for the Q4 2015 filing period.

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

Compare Q4 2015 vs Q3 2015 Across Filers

Q3 2015 holders

351

Q4 2015 holders

345

Holder diff

-6

Investor	Q3 2015 Shares	Q4 2015 Shares	Share Diff	Share Chg %	Q3 2015 Value $	Q4 2015 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.