Select Equity Group’s Idexx Laboratories IDXX Stock Holding History

Select Equity Group’s Portfolio IDXX Stock Details IDXX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$9.62M	Sell	17,126 -114,260	-87%	-$73.3M	0.05%	140
2025 Q4	$88.9M	Sell	131,386 -150,632	-53%	-$103M	0.38%	60
2025 Q3	$180M	Sell	282,018 -291,695	-51%	-$177M	0.74%	39
2025 Q2	$308M	Buy	573,713 +109,767	+24%	+$52.5M	1.29%	26
2025 Q1	$195M	Buy	+463,946	New	+$201M	0.84%	40
2024 Q2	–	Sell	-117,543	Closed	-$63.5M	–	166
2024 Q1	$63.5M	Sell	117,543 -293,540	-71%	-$160M	0.22%	75
2023 Q4	$228M	Sell	411,083 -31,876	-7%	-$15M	0.81%	40
2023 Q3	$194M	Sell	442,959 -200,788	-31%	-$100M	0.79%	39
2023 Q2	$323M	Sell	643,747 -53,869	-8%	-$25.8M	1.2%	28
2023 Q1	$349M	Sell	697,616 -327,434	-32%	-$157M	1.24%	29
2022 Q4	$418M	Sell	1,025,050 -54,080	-5%	-$21M	1.57%	24
2022 Q3	$352M	Sell	1,079,130 -135,997	-11%	-$50M	1.23%	28
2022 Q2	$426M	Buy	1,215,127 +1,062,844	+698%	+$433M	1.36%	23
2022 Q1	$83.3M	Buy	152,283 +46,460	+44%	+$24.4M	0.27%	69
2021 Q4	$69.7M	Sell	105,823 -695	-0.7%	-$436K	0.19%	77
2021 Q3	$66.2M	Sell	106,518 -13,704	-11%	-$9.21M	0.22%	65
2021 Q2	$75.9M	Sell	120,222 -15,088	-11%	-$8.33M	0.26%	65
2021 Q1	$66.2M	Sell	135,310 -77,732	-36%	-$38.9M	0.24%	69
2020 Q4	$106M	Sell	213,042 -3,033	-1%	-$1.36M	0.44%	50
2020 Q3	$84.9M	Sell	216,075 -75,659	-26%	-$28M	0.42%	54
2020 Q2	$96.3M	Sell	291,734 -409,870	-58%	-$119M	0.55%	41
2020 Q1	$170M	Buy	+701,604	New	+$183M	1.17%	33
2019 Q4	–	Sell	-31,162	Closed	-$8.47M	–	111
2019 Q3	$8.47M	Sell	31,162 -30,076	-49%	-$8.37M	0.06%	98
2019 Q2	$16.9M	Sell	61,238 -29,849	-33%	-$7.35M	0.11%	86
2019 Q1	$20.4M	Sell	91,087 -49,038	-35%	-$10.1M	0.14%	74
2018 Q4	$26.1M	Buy	+140,125	New	+$28.7M	0.2%	69
2018 Q2	–	Sell	-429,006	Closed	-$82.1M	–	96
2018 Q1	$82.1M	Buy	429,006 +75,410	+21%	+$13.9M	0.67%	39
2017 Q4	$55.3M	Buy	353,596 +56,436	+19%	+$8.88M	0.44%	49
2017 Q3	$46.2M	Sell	297,160 -4,629	-2%	-$732K	0.35%	55
2017 Q2	$48.7M	Sell	301,789 -634,453	-68%	-$103M	0.35%	60
2017 Q1	$145M	Sell	936,242 -1,141,061	-55%	-$157M	1.08%	35
2016 Q4	$244M	Sell	2,077,303 -106,710	-5%	-$12.2M	1.99%	15
2016 Q3	$246M	Sell	2,184,013 -723,904	-25%	-$76.3M	2.13%	16
2016 Q2	$270M	Sell	2,907,917 -847,261	-23%	-$72.8M	2.37%	14
2016 Q1	$294M	Sell	3,755,178 -372,121	-9%	-$26.8M	2.47%	12
2015 Q4	$301M	Sell	4,127,299 -16,844	-0.4%	-$1.2M	2.88%	8
2015 Q3	$308M	Sell	4,144,143 -27,744	-0.7%	-$1.99M	2.93%	7
2015 Q2	$268M	Buy	4,171,887 +1,070,025	+34%	+$74.1M	2.44%	11
2015 Q1	$240M	Sell	3,101,862 -60,400	-2%	-$4.7M	2.18%	17
2014 Q4	$234M	Buy	3,162,262 +108,832	+4%	+$7.63M	2.2%	16
2014 Q3	$180M	Buy	+3,053,430	New	+$193M	1.86%	19

Other funds holding IDXX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Select Equity Group's IDXX Position: Q1 2026 in Review

Select Equity Group reduced its Idexx Laboratories (IDXX) stake by 87% in Q1 2026, selling an estimated $73.3M and leaving 17,126 shares worth $9.62M. The position accounts for 0.05% of the portfolio, ranked #140.

Select Equity Group first reported a position in IDXX in Q3 2014 and has held it in 41 quarters since. The position peaked at $426M in Q2 2022. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.

Select Equity Group held 17,126 shares of Idexx Laboratories worth $9.62M as of Q1 2026.
Select Equity Group sold 114,260 Idexx Laboratories shares in Q1 2026, an estimated $73.3M.
Idexx Laboratories made up 0.05% of Select Equity Group's portfolio in Q1 2026, its #140 holding.
Select Equity Group first reported a position in Idexx Laboratories in Q3 2014 and has held it in 41 quarters since.
Select Equity Group's Idexx Laboratories position peaked at $426M in Q2 2022.
1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.

Based on Select Equity Group's 13F filing for Q1 2026, filed 15 May 2026.