Baillie Gifford & Co
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Baillie Gifford & Co’s Idexx Laboratories IDXX Stock Holding History

Baillie Gifford & Co’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 		$186M Buy
+353,797
New +$198M 0.17% 104
2016
Q4 		– Sell
-302,409
Closed -$34.1M – 199
2016
Q3 		$34.1M Sell
302,409
-3,974
-1% -$419K 0.05% 101
2016
Q2 		$28.4M Sell
306,383
-117,374
-28% -$10.1M 0.05% 103
2016
Q1 		$33.2M Sell
423,757
-35,012
-8% -$2.52M 0.06% 99
2015
Q4 		$33.5M Sell
458,769
-19,327
-4% -$1.38M 0.06% 94
2015
Q3 		$35.5M Sell
478,096
-14,400
-3% -$1.03M 0.07% 104
2015
Q2 		$31.6M Sell
492,496
-35,852
-7% -$2.48M 0.06% 102
2015
Q1 		$40.8M Buy
528,348
+229,952
+77% +$17.9M 0.08% 102
2014
Q4 		$22.1M Buy
298,396
+6,700
+2% +$470K 0.04% 115
2014
Q3 		$17.2M Sell
291,696
-341,552
-54% -$21.6M 0.04% 125
2014
Q2 		$42.3M Buy
633,248
+424,344
+203% +$27M 0.09% 97
2014
Q1 		$12.7M Sell
208,904
-5,174
-2% -$308K 0.03% 137
2013
Q4 		$11.4M Hold
214,078
– – 0.03% 137
2013
Q3 		$10.7M Hold
214,078
– – 0.03% 132
2013
Q2 		$9.61M Buy
+214,078
New +$9.35M 0.03% 123

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

Baillie Gifford & Co's IDXX Position: Q2 2026 in Review

Baillie Gifford & Co opened a new position in Idexx Laboratories (IDXX) in Q2 2026: 353,797 shares worth $186M. The stake represents 0.17% of the portfolio and ranks #104 among its holdings. This is a return to the name: Baillie Gifford & Co previously reported a position in IDXX as recently as Q3 2016.

Baillie Gifford & Co first reported a position in IDXX in Q2 2013 and has held it in 15 quarters since. 1,300 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

  • Baillie Gifford & Co held 353,797 shares of Idexx Laboratories worth $186M as of Q2 2026.
  • Idexx Laboratories was a new Baillie Gifford & Co position in Q2 2026.
  • Idexx Laboratories made up 0.17% of Baillie Gifford & Co's portfolio in Q2 2026, its #104 holding.
  • Baillie Gifford & Co first reported a position in Idexx Laboratories in Q2 2013 and has held it in 15 quarters since.
  • 1,300 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on Baillie Gifford & Co's 13F filing for Q2 2026, filed 6 Aug 2026.