Woodline Partners’s Idexx Laboratories IDXX Stock Holding History

Woodline Partners’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	$818K	Sell	1,455 -12,172	-89%	-$7.81M	﹤0.01%	906
2025 Q4	$9.22M	Buy	13,627 +3,053	+29%	+$2.08M	0.04%	481
2025 Q3	$6.76M	Buy	10,574 +1,875	+22%	+$1.14M	0.03%	507
2025 Q2	$4.67M	Buy	+8,699	New	+$4.16M	0.02%	577
2025 Q1	–	Sell	-31,929	Closed	-$13.2M	–	958
2024 Q4	$13.2M	Sell	31,929 -5,990	-16%	-$2.63M	0.09%	292
2024 Q3	$19.2M	Buy	+37,919	New	+$18.4M	0.16%	197
2023 Q2	–	Sell	-42,736	Closed	-$21.4M	–	694
2023 Q1	$21.4M	Buy	+42,736	New	+$20.5M	0.29%	98
2020 Q4	–	Sell	-63,661	Closed	-$25M	–	248
2020 Q3	$25M	Buy	+63,661	New	+$23.5M	0.82%	36

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

Woodline Partners's IDXX Position: Q1 2026 in Review

Woodline Partners reduced its Idexx Laboratories (IDXX) stake by 89% in Q1 2026, selling an estimated $7.81M and leaving 1,455 shares worth $818K. The position accounts for ﹤0.01% of the portfolio, ranked #906.

Woodline Partners first reported a position in IDXX in Q3 2020 and has held it in 8 quarters since. The position peaked at $25M in Q3 2020. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.

Woodline Partners held 1,455 shares of Idexx Laboratories worth $818K as of Q1 2026.
Woodline Partners sold 12,172 Idexx Laboratories shares in Q1 2026, an estimated $7.81M.
Idexx Laboratories made up ﹤0.01% of Woodline Partners's portfolio in Q1 2026, its #906 holding.
Woodline Partners first reported a position in Idexx Laboratories in Q3 2020 and has held it in 8 quarters since.
Woodline Partners's Idexx Laboratories position peaked at $25M in Q3 2020.
1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.

Based on Woodline Partners's 13F filing for Q1 2026, filed 15 May 2026.