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Tang Capital Management’s Idexx Laboratories IDXX Stock Holding History

Tang Capital 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
-16,000
Closed -$10.2M – 127
2025
Q3 		$10.2M Hold
16,000
– – 0.39% 65
2025
Q2 		$8.58M Buy
16,000
+11,000
+220% +$5.26M 0.43% 60
2025
Q1 		$2.1M Hold
5,000
– – 0.12% 114
2024
Q4 		$2.07M Buy
+5,000
New +$2.19M 0.14% 105

Other funds holding IDXX

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 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
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

Tang Capital Management's IDXX Position: Q4 2025 in Review

Tang Capital Management sold out of Idexx Laboratories (IDXX) in Q4 2025, closing a stake of 16,000 shares — an estimated $10.2M sold.

Tang Capital Management first reported a position in IDXX in Q4 2024 and held it in 4 quarters. The position peaked at $10.2M in Q3 2025. 1,386 funds tracked by Wall St. Rank hold IDXX as of Q4 2025.

  • Tang Capital Management reported no remaining Idexx Laboratories position as of Q4 2025 after selling out during the quarter.
  • Tang Capital Management sold 16,000 Idexx Laboratories shares in Q4 2025, an estimated $10.2M.
  • Tang Capital Management first reported a position in Idexx Laboratories in Q4 2024 and held it in 4 quarters.
  • Tang Capital Management's Idexx Laboratories position peaked at $10.2M in Q3 2025.
  • 1,386 funds tracked by Wall St. Rank held Idexx Laboratories as of Q4 2025.

Based on Tang Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.