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Generation Investment Management’s Idexx Laboratories IDXX Stock Holding History

Generation Investment Management’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
2025
Q4 		– Sell
-260,394
Closed -$166M – 36
2025
Q3 		$166M Sell
260,394
-306,928
-54% -$186M 1.1% 22
2025
Q2 		$304M Buy
+567,322
New +$271M 1.93% 19

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State Street
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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
Fundsmith LLP
Fundsmith LLP London, United Kingdom $13.6B AUM 7.6% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $38.4B AUM 25.71% 1-Year Est. Return

Generation Investment Management's IDXX Position: Q4 2025 in Review

Generation Investment Management sold out of Idexx Laboratories (IDXX) in Q4 2025, closing a stake of 260,394 shares — an estimated $166M sold.

Generation Investment Management first reported a position in IDXX in Q2 2025 and held it in 2 quarters. The position peaked at $304M in Q2 2025. 1,386 funds tracked by Wall St. Rank hold IDXX as of Q4 2025.

  • Generation Investment Management reported no remaining Idexx Laboratories position as of Q4 2025 after selling out during the quarter.
  • Generation Investment Management sold 260,394 Idexx Laboratories shares in Q4 2025, an estimated $166M.
  • Generation Investment Management first reported a position in Idexx Laboratories in Q2 2025 and held it in 2 quarters.
  • Generation Investment Management's Idexx Laboratories position peaked at $304M in Q2 2025.
  • 1,386 funds tracked by Wall St. Rank held Idexx Laboratories as of Q4 2025.

Based on Generation Investment Management's 13F filing for Q4 2025, filed 12 Feb 2026.