GDP
IDXX icon

Great Diamond Partners’s Idexx Laboratories IDXX Stock Holding History

Great Diamond Partners’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
Q2 		$7.53M Sell
14,310
-36
-0.3% -$20.2K 1.29% 18
2026
Q1 		$8.06M Sell
14,346
-25
-0.2% -$16K 1.55% 11
2025
Q4 		$9.72M Sell
14,371
-630
-4% -$429K 1.87% 10
2025
Q3 		$9.58M Sell
15,001
-141
-0.9% -$85.6K 1.86% 9
2025
Q2 		$8.12M Buy
15,142
+923
+6% +$441K 1.72% 11
2025
Q1 		$5.97M Sell
14,219
-88
-0.6% -$38.2K 1.63% 11
2024
Q4 		$5.92M Sell
14,307
-100
-0.7% -$43.9K 1.53% 12
2024
Q3 		$7.28M Sell
14,407
-44
-0.3% -$21.4K 1.85% 10
2024
Q2 		$7.04M Sell
14,451
-66
-0.5% -$33.1K 1.65% 11
2024
Q1 		$7.84M Sell
14,517
-64
-0.4% -$35K 1.8% 9
2023
Q4 		$8.09M Sell
14,581
-283
-2% -$133K 1.99% 8
2023
Q3 		$6.5M Sell
14,864
-1,965
-12% -$980K 1.76% 11
2023
Q2 		$8.45M Buy
16,829
+32
+0.2% +$15.3K 2.23% 7
2023
Q1 		$8.4M Buy
16,797
+24
+0.1% +$11.5K 2.43% 6
2022
Q4 		$6.84M Sell
16,773
-50
-0.3% -$19.4K 2.11% 7
2022
Q3 		$5.48M Hold
16,823
– – 1.87% 7
2022
Q2 		$5.9M Sell
16,823
-3,532
-17% -$1.44M 1.96% 7
2022
Q1 		$11.1M Buy
20,355
+59
+0.3% +$31K 3.1% 5
2021
Q4 		$13.4M Sell
20,296
-9,415
-32% -$5.91M 3.44% 5
2021
Q3 		$18.5M Buy
29,711
+14
+0% +$9.41K 5.06% 3
2021
Q2 		$18.8M Sell
29,697
-4,010
-12% -$2.21M 5.3% 3
2021
Q1 		$16.5M Sell
33,707
-16,050
-32% -$8.04M 5.07% 3
2020
Q4 		$24.9M Sell
49,757
-4,843
-9% -$2.17M 7.93% 3
2020
Q3 		$21.5M Hold
54,600
– – 7.88% 3
2020
Q2 		$18M Buy
54,600
+50
+0.1% +$14.5K 7.46% 3
2020
Q1 		$13.2M Sell
54,550
-1,798
-3% -$469K 6.8% 3
2019
Q4 		$14.7M Buy
+56,348
New +$14.8M 5.6% 3

Other funds holding IDXX

MBI
Montrusco Bolton Investments Montreal, Quebec, Canada $6.46B AUM 26.7% 1-Year Est. Return
CGI
Comgest Global Investors Paris, France $4.55B AUM 11.62% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
WF
Welch & Forbes Boston, Massachusetts $8.23B AUM 17.62% 1-Year Est. Return
RG
Rathbones Group Liverpool, United Kingdom $27.1B AUM 20.2% 1-Year Est. Return
LWCFA
Loring Wolcott & Coolidge Fiduciary Advisors Boston, Massachusetts $10.3B AUM 3.26% 1-Year Est. Return

Great Diamond Partners's IDXX Position: Q2 2026 in Review

Great Diamond Partners reduced its Idexx Laboratories (IDXX) stake by 0.25% in Q2 2026, selling an estimated $20.2K and leaving 14,310 shares worth $7.53M. The position accounts for 1.29% of the portfolio, ranked #18.

Great Diamond Partners first reported a position in IDXX in Q4 2019 and has held it in 27 quarters since. The position peaked at $24.9M in Q4 2020. 509 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

  • Great Diamond Partners held 14,310 shares of Idexx Laboratories worth $7.53M as of Q2 2026.
  • Great Diamond Partners sold 36 Idexx Laboratories shares in Q2 2026, an estimated $20.2K.
  • Idexx Laboratories made up 1.29% of Great Diamond Partners's portfolio in Q2 2026, its #18 holding.
  • Great Diamond Partners first reported a position in Idexx Laboratories in Q4 2019 and has held it in 27 quarters since.
  • Great Diamond Partners's Idexx Laboratories position peaked at $24.9M in Q4 2020.
  • 509 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on Great Diamond Partners's 13F filing for Q2 2026, filed 17 Jul 2026.