Janus Henderson Group
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Janus Henderson Group’s Idexx Laboratories IDXX Stock Holding History

Janus Henderson 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 		$6.06M Sell
10,790
-1,749
-14% -$1.12M ﹤0.01% 903
2025
Q4 		$8.48M Sell
12,539
-33
-0.3% -$22.5K ﹤0.01% 782
2025
Q3 		$8.03M Buy
12,572
+1,738
+16% +$1.05M ﹤0.01% 793
2025
Q2 		$5.81M Sell
10,834
-1,721
-14% -$823K ﹤0.01% 859
2025
Q1 		$5.22M Buy
12,555
+908
+8% +$394K ﹤0.01% 870
2024
Q4 		$4.82M Sell
11,647
-187
-2% -$82K ﹤0.01% 927
2024
Q3 		$5.98M Buy
11,834
+53
+0.4% +$25.7K ﹤0.01% 830
2024
Q2 		$5.74M Sell
11,781
-626
-5% -$314K ﹤0.01% 799
2024
Q1 		$6.7M Sell
12,407
-499
-4% -$273K ﹤0.01% 782
2023
Q4 		$7.17M Buy
12,906
+135
+1% +$63.4K ﹤0.01% 725
2023
Q3 		$5.59M Buy
12,771
+746
+6% +$372K ﹤0.01% 791
2023
Q2 		$6.04M Sell
12,025
-990
-8% -$474K ﹤0.01% 808
2023
Q1 		$6.51M Buy
13,015
+2,547
+24% +$1.22M ﹤0.01% 802
2022
Q4 		$4.27M Sell
10,468
-10,470
-50% -$4.06M ﹤0.01% 897
2022
Q3 		$6.83M Sell
20,938
-218,068
-91% -$80.1M ﹤0.01% 911
2022
Q2 		$83.8M Sell
239,006
-7,123
-3% -$2.9M 0.06% 286
2022
Q1 		$135M Buy
246,129
+223,208
+974% +$117M 0.07% 267
2021
Q4 		$15.1M Sell
22,921
-11,739
-34% -$7.37M 0.01% 840
2021
Q3 		$21.6M Sell
34,660
-6,127
-15% -$4.12M 0.01% 776
2021
Q2 		$25.8M Sell
40,787
-554
-1% -$306K 0.01% 737
2021
Q1 		$20.2M Buy
41,341
+4,540
+12% +$2.27M 0.01% 767
2020
Q4 		$18.4M Sell
36,801
-5,726
-13% -$2.56M 0.01% 770
2020
Q3 		$16.7M Sell
42,527
-47,905
-53% -$17.7M 0.01% 745
2020
Q2 		$29.9M Sell
90,432
-95,240
-51% -$27.6M 0.02% 610
2020
Q1 		$45M Sell
185,672
-361,528
-66% -$94.3M 0.03% 479
2019
Q4 		$143M Sell
547,200
-18,422
-3% -$4.85M 0.07% 278
2019
Q3 		$154M Buy
565,622
+23,637
+4% +$6.58M 0.08% 263
2019
Q2 		$149M Sell
541,985
-164,106
-23% -$40.4M 0.08% 275
2019
Q1 		$158M Sell
706,091
-331,539
-32% -$68.4M 0.09% 272
2018
Q4 		$193M Buy
1,037,630
+642,220
+162% +$132M 0.12% 210
2018
Q3 		$98.7M Buy
395,410
+69,128
+21% +$16.8M 0.05% 401
2018
Q2 		$71.1M Sell
326,282
-110,493
-25% -$22.8M 0.04% 462
2018
Q1 		$83.6M Sell
436,775
-453,161
-51% -$83.6M 0.05% 418
2017
Q4 		$139M Sell
889,936
-172,549
-16% -$27.2M 0.08% 275
2017
Q3 		$165M Sell
1,062,485
-69,417
-6% -$11M 0.11% 241
2017
Q2 		$183M Buy
1,131,902
+938,888
+486% +$152M 0.12% 219
2017
Q1 		$29.8M Sell
193,014
-18,723
-9% -$2.58M 0.21% 113
2016
Q4 		$24.8M Sell
211,737
-25,993
-11% -$2.97M 0.18% 148
2016
Q3 		$26.8M Sell
237,730
-8,506
-3% -$896K 0.2% 137
2016
Q2 		$22.8M Sell
246,236
-24,374
-9% -$2.09M 0.19% 148
2016
Q1 		$21.2M Sell
270,610
-29,612
-10% -$2.13M 0.17% 155
2015
Q4 		$21.9M Sell
300,222
-9,731
-3% -$694K 0.18% 153
2015
Q3 		$23M Sell
309,953
-16,146
-5% -$1.16M 0.2% 140
2015
Q2 		$20.9M Sell
326,099
-123,213
-27% -$8.53M 0.16% 160
2015
Q1 		$29.3M Sell
449,312
-37,236
-8% -$2.9M 0.23% 121
2014
Q4 		$36.1M Buy
+486,548
New +$34.1M 0.26% 103

Other funds holding IDXX

BlackRock
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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return
Fundsmith LLP
Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Janus Henderson Group's IDXX Position: Q1 2026 in Review

Janus Henderson Group reduced its Idexx Laboratories (IDXX) stake by 14% in Q1 2026, selling an estimated $1.12M and leaving 10,790 shares worth $6.06M. The position accounts for ﹤0.01% of the portfolio, ranked #903.

Janus Henderson Group first reported a position in IDXX in Q4 2014 and has held it in 46 quarters since. The position peaked at $193M in Q4 2018. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.

  • Janus Henderson Group held 10,790 shares of Idexx Laboratories worth $6.06M as of Q1 2026.
  • Janus Henderson Group sold 1,749 Idexx Laboratories shares in Q1 2026, an estimated $1.12M.
  • Idexx Laboratories made up ﹤0.01% of Janus Henderson Group's portfolio in Q1 2026, its #903 holding.
  • Janus Henderson Group first reported a position in Idexx Laboratories in Q4 2014 and has held it in 46 quarters since.
  • Janus Henderson Group's Idexx Laboratories position peaked at $193M in Q4 2018.
  • 1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.

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