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Wallace Weitz’s Idexx Laboratories IDXX Stock Holding History

Wallace Weitz’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 		$18.6M Hold
35,300
– – 1.29% 23
2026
Q1 		$19.8M Hold
35,300
– – 1.38% 26
2025
Q4 		$23.9M Sell
35,300
-21,500
-38% -$14.6M 1.42% 26
2025
Q3 		$36.3M Sell
56,800
-3,500
-6% -$2.12M 1.97% 20
2025
Q2 		$32.3M Hold
60,300
– – 1.74% 28
2025
Q1 		$25.3M Buy
+60,300
New +$26.2M 1.35% 29

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

Wallace Weitz's IDXX Position: Q2 2026 in Review

Wallace Weitz held its Idexx Laboratories (IDXX) position steady in Q2 2026 at 35,300 shares worth $18.6M. The position accounts for 1.29% of the portfolio, ranked #23.

Wallace Weitz first reported a position in IDXX in Q1 2025 and has held it in 6 quarters since. The position peaked at $36.3M in Q3 2025. 1,293 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

  • Wallace Weitz held 35,300 shares of Idexx Laboratories worth $18.6M as of Q2 2026.
  • Wallace Weitz left its Idexx Laboratories share count unchanged in Q2 2026.
  • Idexx Laboratories made up 1.29% of Wallace Weitz's portfolio in Q2 2026, its #23 holding.
  • Wallace Weitz first reported a position in Idexx Laboratories in Q1 2025 and has held it in 6 quarters since.
  • Wallace Weitz's Idexx Laboratories position peaked at $36.3M in Q3 2025.
  • 1,293 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on Weitz Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.