Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Idexx Laboratories IDXX Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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 		– Sell
-2,613
Closed -$1.47M – 694
2026
Q1 		$1.47M Buy
2,613
+623
+31% +$399K ﹤0.01% 466
2025
Q4 		$1.35M Buy
1,990
+505
+34% +$344K ﹤0.01% 461
2025
Q3 		$949K Buy
+1,485
New +$901K ﹤0.01% 490
2015
Q3 		– Sell
-58,800
Closed -$3.77M – 579
2015
Q2 		$3.77M Hold
58,800
– – 0.01% 279
2015
Q1 		$4.54M Sell
58,800
-24,800
-30% -$1.93M 0.01% 273
2014
Q4 		$6.2M Sell
83,600
-17,212
-17% -$1.21M 0.02% 238
2014
Q3 		$5.94M Buy
100,812
+49,612
+97% +$3.14M 0.02% 252
2014
Q2 		$3.42M Sell
51,200
-2,200
-4% -$140K 0.01% 326
2014
Q1 		$3.24M Sell
53,400
-21,446
-29% -$1.28M 0.01% 353
2013
Q4 		$3.98M Sell
74,846
-4,934
-6% -$260K 0.01% 343
2013
Q3 		$3.98M Sell
79,780
-13,600
-15% -$654K 0.01% 347
2013
Q2 		$4.19M Buy
+93,380
New +$4.08M 0.01% 331

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Morgan Stanley
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Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s IDXX Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) sold out of Idexx Laboratories (IDXX) in Q2 2026, closing a stake of 2,613 shares — an estimated $1.47M sold.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in IDXX in Q2 2013 and held it in 12 quarters. The position peaked at $6.2M in Q4 2014. 1,302 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) reported no remaining Idexx Laboratories position as of Q2 2026 after selling out during the quarter.
  • Grantham, Mayo, Van Otterloo & Co (GMO) sold 2,613 Idexx Laboratories shares in Q2 2026, an estimated $1.47M.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Idexx Laboratories in Q2 2013 and held it in 12 quarters.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Idexx Laboratories position peaked at $6.2M in Q4 2014.
  • 1,302 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.