Michael J. Puzo’s Idexx Laboratories IDXX Stock Holding History

Michael J. Puzo’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 Q1	–	Sell	-400	Closed	-$271K	–	71
2025 Q4	$271K	Hold	400	–	–	0.07%	64
2025 Q3	$256K	Hold	400	–	–	0.07%	64
2025 Q2	$215K	Buy	+400	New	+$191K	0.06%	71
2024 Q4	–	Sell	-400	Closed	-$202K	–	75
2024 Q3	$202K	Buy	+400	New	+$194K	0.05%	75
2024 Q2	–	Sell	-400	Closed	-$216K	–	75
2024 Q1	$216K	Hold	400	–	–	0.06%	75
2023 Q4	$222K	Buy	+400	New	+$188K	0.07%	72
2023 Q3	–	Sell	-550	Closed	-$276K	–	78
2023 Q2	$276K	Sell	550 -100	-15%	-$47.9K	0.09%	70
2023 Q1	$325K	Hold	650	–	–	0.11%	67
2022 Q4	$265K	Hold	650	–	–	0.1%	67
2022 Q3	$212K	Hold	650	–	–	0.08%	71
2022 Q2	$228K	Sell	650 -100	-13%	-$40.8K	0.08%	70
2022 Q1	$410K	Sell	750 -50	-6%	-$26.3K	0.12%	66
2021 Q4	$527K	Hold	800	–	–	0.15%	63
2021 Q3	$498K	Sell	800 -150	-16%	-$101K	0.16%	60
2021 Q2	$600K	Sell	950 -50	-5%	-$27.6K	0.19%	57
2021 Q1	$489K	Sell	1,000 -200	-17%	-$100K	0.16%	60
2020 Q4	$600K	Hold	1,200	–	–	0.2%	55
2020 Q3	$472K	Sell	1,200 -100	-8%	-$37K	0.17%	59
2020 Q2	$429K	Hold	1,300	–	–	0.16%	59
2020 Q1	$315K	Sell	1,300 -200	-13%	-$52.2K	0.14%	64
2019 Q4	$392K	Hold	1,500	–	–	0.14%	64
2019 Q3	$408K	Hold	1,500	–	–	0.15%	63
2019 Q2	$413K	Buy	+1,500	New	+$370K	0.15%	63

Other funds holding IDXX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Michael J. Puzo's IDXX Position: Q1 2026 in Review

Michael J. Puzo sold out of Idexx Laboratories (IDXX) in Q1 2026, closing a stake of 400 shares — an estimated $271K sold.

Michael J. Puzo first reported a position in IDXX in Q2 2019 and held it in 23 quarters. The position peaked at $600K in Q2 2021. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.

Michael J. Puzo reported no remaining Idexx Laboratories position as of Q1 2026 after selling out during the quarter.
Michael J. Puzo sold 400 Idexx Laboratories shares in Q1 2026, an estimated $271K.
Michael J. Puzo first reported a position in Idexx Laboratories in Q2 2019 and held it in 23 quarters.
Michael J. Puzo's Idexx Laboratories position peaked at $600K in Q2 2021.
1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.

Based on Michael J. Puzo's 13F filing for Q1 2026, filed 7 May 2026.