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McDonald Partners’s Idexx Laboratories IDXX Stock Holding History

McDonald 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 		$185K Buy
+352
New +$197K 0.05% 223
2026
Q1 		– Sell
-310
Closed -$210K – 214
2025
Q4 		$210K Buy
+310
New +$211K 0.07% 200
2025
Q1 		– Sell
-510
Closed -$211K – 243
2024
Q4 		$211K Hold
510
– – 0.05% 225
2024
Q3 		$258K Buy
510
+10
+2% +$4.86K 0.06% 214
2024
Q2 		$244K Hold
500
– – 0.07% 220
2024
Q1 		$270K Sell
500
-125
-20% -$68.3K 0.07% 209
2023
Q4 		$347K Hold
625
– – 0.1% 187
2023
Q3 		$273K Sell
625
-42
-6% -$20.9K 0.09% 198
2023
Q2 		$335K Buy
667
+25
+4% +$12K 0.1% 191
2023
Q1 		$321K Hold
642
– – 0.1% 191
2022
Q4 		$262K Hold
642
– – 0.09% 195
2022
Q3 		$209K Hold
642
– – 0.08% 203
2022
Q2 		$225K Hold
642
– – 0.06% 268
2022
Q1 		$351K Buy
642
+630
+5,250% +$331K 0.08% 237
2021
Q4 		$7.9K Sell
12
-630
-98% -$395K 0.01% 205
2021
Q3 		$399K Hold
642
– – 0.09% 216
2021
Q2 		$406K Hold
642
– – 0.1% 210
2021
Q1 		$314K Sell
642
-1
-0.2% -$501 0.08% 233
2020
Q4 		$321K Buy
+643
New +$288K 0.09% 216

Other funds holding IDXX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

McDonald Partners's IDXX Position: Q2 2026 in Review

McDonald Partners opened a new position in Idexx Laboratories (IDXX) in Q2 2026: 352 shares worth $185K. The stake represents 0.05% of the portfolio and ranks #223 among its holdings. This is a return to the name: McDonald Partners previously reported a position in IDXX as recently as Q4 2025.

McDonald Partners first reported a position in IDXX in Q4 2020 and has held it in 19 quarters since. The position peaked at $406K in Q2 2021. 1,295 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

  • McDonald Partners held 352 shares of Idexx Laboratories worth $185K as of Q2 2026.
  • Idexx Laboratories was a new McDonald Partners position in Q2 2026.
  • Idexx Laboratories made up 0.05% of McDonald Partners's portfolio in Q2 2026, its #223 holding.
  • McDonald Partners first reported a position in Idexx Laboratories in Q4 2020 and has held it in 19 quarters since.
  • McDonald Partners's Idexx Laboratories position peaked at $406K in Q2 2021.
  • 1,295 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on McDonald Partners's 13F filing for Q2 2026, filed 28 Jul 2026.