TCW Group’s Idexx Laboratories IDXX Stock Holding History

TCW Group’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	$57.4M	Sell	108,951 -9,800	-8%	-$5.5M	0.39%	76
2026 Q1	$66.7M	Buy	118,751 +54,007	+83%	+$34.6M	0.5%	64
2025 Q4	$43.8M	Buy	+64,744	New	+$44.1M	0.31%	80
2020 Q1	–	Sell	-57,624	Closed	-$15M	–	316
2019 Q4	$15M	Sell	57,624 -11,499	-17%	-$3.03M	0.17%	107
2019 Q3	$18.8M	Sell	69,123 -6,084	-8%	-$1.69M	0.21%	98
2019 Q2	$20.7M	Sell	75,207 -19,623	-21%	-$4.83M	0.22%	96
2019 Q1	$21.2M	Sell	94,830 -8,286	-8%	-$1.71M	0.2%	99
2018 Q4	$19.2M	Sell	103,116 -9,107	-8%	-$1.87M	0.2%	105
2018 Q3	$28M	Buy	112,223 +20,986	+23%	+$5.09M	0.23%	101
2018 Q2	$19.9M	Sell	91,237 -64,140	-41%	-$13.2M	0.16%	114
2018 Q1	$29.7M	Sell	155,377 -98	-0.1%	-$18.1K	0.24%	95
2017 Q4	$24.3M	Buy	+155,475	New	+$24.5M	0.2%	101

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 $3.37T AUM 44.26% 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

TCW Group's IDXX Position: Q2 2026 in Review

TCW Group reduced its Idexx Laboratories (IDXX) stake by 8.3% in Q2 2026, selling an estimated $5.5M and leaving 108,951 shares worth $57.4M. The position accounts for 0.39% of the portfolio, ranked #76.

TCW Group first reported a position in IDXX in Q4 2017 and has held it in 12 quarters since. The position peaked at $66.7M in Q1 2026. 1,302 funds tracked by Wall St. Rank hold IDXX as of Q2 2026.

TCW Group held 108,951 shares of Idexx Laboratories worth $57.4M as of Q2 2026.
TCW Group sold 9,800 Idexx Laboratories shares in Q2 2026, an estimated $5.5M.
Idexx Laboratories made up 0.39% of TCW Group's portfolio in Q2 2026, its #76 holding.
TCW Group first reported a position in Idexx Laboratories in Q4 2017 and has held it in 12 quarters since.
TCW Group's Idexx Laboratories position peaked at $66.7M in Q1 2026.
1,302 funds tracked by Wall St. Rank held Idexx Laboratories as of Q2 2026.

Based on TCW Group's 13F filing for Q2 2026, filed 3 Aug 2026.