Picton Mahoney Asset Management’s Idexx Laboratories IDXX Stock Holding History

Picton Mahoney Asset 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
2026 Q2	–	Sell	-694	Closed	-$390K	–	1519
2026 Q1	$390K	Buy	694 +169	+32%	+$108K	﹤0.01%	793
2025 Q4	$355K	Buy	+525	New	+$358K	﹤0.01%	762
2020 Q1	–	Sell	-38,600	Closed	-$10.1M	–	322
2019 Q4	$10.1M	Sell	38,600 -8,700	-18%	-$2.29M	0.68%	52
2019 Q3	$12.9M	Sell	47,300 -3,200	-6%	-$890K	0.91%	39
2019 Q2	$13.9M	Sell	50,500 -1,300	-3%	-$320K	0.95%	38
2019 Q1	$11.6M	Sell	51,800 -1,000	-2%	-$206K	0.88%	43
2018 Q4	$9.82M	Sell	52,800 -10,700	-17%	-$2.19M	0.88%	43
2018 Q3	$15.9M	Sell	63,500 -2,100	-3%	-$510K	1.11%	30
2018 Q2	$14.3M	Buy	65,600 +30,200	+85%	+$6.22M	1.03%	36
2018 Q1	$6.78M	Buy	+35,400	New	+$6.53M	0.49%	70

Other funds holding IDXX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

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

Picton Mahoney Asset Management's IDXX Position: Q2 2026 in Review

Picton Mahoney Asset Management sold out of Idexx Laboratories (IDXX) in Q2 2026, closing a stake of 694 shares — an estimated $390K sold.

Picton Mahoney Asset Management first reported a position in IDXX in Q1 2018 and held it in 10 quarters. The position peaked at $15.9M in Q3 2018. 1,306 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

Picton Mahoney Asset Management reported no remaining Idexx Laboratories position as of Q2 2026 after selling out during the quarter.
Picton Mahoney Asset Management sold 694 Idexx Laboratories shares in Q2 2026, an estimated $390K.
Picton Mahoney Asset Management first reported a position in Idexx Laboratories in Q1 2018 and held it in 10 quarters.
Picton Mahoney Asset Management's Idexx Laboratories position peaked at $15.9M in Q3 2018.
1,306 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.