Simplex Trading
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Simplex Trading’s Idexx Laboratories IDXX Stock Holding History

Simplex Trading’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 		$169K Sell
300
-300
-50% -$192K ﹤0.01% 4501
2025
Q4 		$406K Sell
600
-3,400
-85% -$2.32M ﹤0.01% 3510
2025
Q3 		$2.56M Buy
4,000
+2,500
+167% +$1.52M ﹤0.01% 2079
2025
Q2 		$804K Buy
1,500
+800
+114% +$383K ﹤0.01% 3006
2025
Q1 		$293K Sell
700
-300
-30% -$130K ﹤0.01% 3938
2024
Q4 		$413K Sell
1,000
-1,400
-58% -$614K ﹤0.01% 3742
2024
Q3 		$1.21M Hold
2,400
– – ﹤0.01% 2745
2024
Q2 		$1.17M Sell
2,400
-11,200
-82% -$5.62M ﹤0.01% 2763
2024
Q1 		$7.34M Sell
13,600
-27,600
-67% -$15.1M ﹤0.01% 1324
2023
Q4 		$22.9M Sell
41,200
-700
-2% -$329K 0.01% 657
2023
Q3 		$18.3M Buy
41,900
+32,900
+366% +$16.4M 0.01% 631
2023
Q2 		$4.52M Sell
9,000
-10,300
-53% -$4.94M ﹤0.01% 1384
2023
Q1 		$9.65M Sell
19,300
-3,300
-15% -$1.58M 0.01% 925
2022
Q4 		$9.22M Buy
22,600
+5,200
+30% +$2.02M 0.01% 884
2022
Q3 		$5.67M Buy
17,400
+13,300
+324% +$4.89M 0.01% 1114
2022
Q2 		$1.44M Sell
4,100
-24,800
-86% -$10.1M ﹤0.01% 2209
2022
Q1 		$15.8M Buy
28,900
+24,100
+502% +$12.7M 0.01% 619
2021
Q4 		$3.16M Sell
4,800
-3,200
-40% -$2.01M ﹤0.01% 1587
2021
Q3 		$5.11M Buy
8,000
+1,000
+14% +$672K ﹤0.01% 1194
2021
Q2 		$4.42M Buy
7,000
+6,971
+24,038% +$3.85M ﹤0.01% 1290
2021
Q1 		$1.42M Buy
29
+15
+107% +$7.51K ﹤0.01% 2015
2020
Q4 		$699K Sell
14
-15
-52% -$6.71K ﹤0.01% 3004
2020
Q3 		$1.14M Sell
29
-123
-81% -$45.5K ﹤0.01% 2085
2020
Q2 		$5.02M Sell
152
-10
-6% -$2.9K 0.01% 855
2020
Q1 		$3.92M Sell
162
-83
-34% -$21.7K 0.01% 827
2019
Q4 		$6.4M Buy
245
+100
+69% +$26.4K 0.01% 656
2019
Q3 		$3.94M Sell
145
-76
-34% -$21.1K 0.01% 866
2019
Q2 		$6.08M Buy
221
+88
+66% +$21.7K 0.02% 583
2019
Q1 		$2.97M Sell
133
-102
-43% -$21.1K 0.01% 1034
2018
Q4 		$4.37M Sell
235
-105
-31% -$21.5K 0.01% 634
2018
Q3 		$8.49M Buy
340
+116
+52% +$28.2K 0.03% 419
2018
Q2 		$4.88M Buy
224
+152
+211% +$31.3K 0.02% 572
2018
Q1 		$124K Sell
72
-160
-69% -$29.5K 0.01% 1625
2017
Q4 		$29K Buy
232
+46
+25% +$7.24K ﹤0.01% 2955
2017
Q3 		$50K Sell
186
-74
-28% -$11.7K ﹤0.01% 2302
2017
Q2 		$124K Buy
260
+50
+24% +$8.12K 0.01% 1581
2017
Q1 		$72K Buy
210
+187
+813% +$25.8K ﹤0.01% 2030
2016
Q4 		$4K Sell
23
-73
-76% -$8.33K ﹤0.01% 4535
2016
Q3 		$35K Buy
96
+61
+174% +$6.43K ﹤0.01% 2425
2016
Q2 		$6K Sell
35
-8
-19% -$687 ﹤0.01% 4074
2016
Q1 		$6K Buy
+43
New +$3.1K ﹤0.01% 3923
2015
Q2 		– Sell
-58
Closed -$6K – 5462
2015
Q1 		$6K Buy
+58
New +$4.51K ﹤0.01% 3350

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

Simplex Trading's IDXX Position: Q1 2026 in Review

Simplex Trading opened a new position in Idexx Laboratories (IDXX) in Q1 2026: 15 shares worth $8.43K. The stake represents ﹤0.01% of the portfolio and ranks #7495 among its holdings. This is a return to the name: Simplex Trading previously reported a position in IDXX as recently as Q3 2025.

Simplex Trading first reported a position in IDXX in Q1 2015 and has held it in 21 quarters since. The position peaked at $2.11M in Q3 2025. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.

  • Simplex Trading held 15 shares of Idexx Laboratories worth $8.43K as of Q1 2026.
  • Idexx Laboratories was a new Simplex Trading position in Q1 2026.
  • Idexx Laboratories made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7495 holding.
  • Simplex Trading first reported a position in Idexx Laboratories in Q1 2015 and has held it in 21 quarters since.
  • Simplex Trading's Idexx Laboratories position peaked at $2.11M in Q3 2025.
  • 1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.