DF Dent & Co’s Idexx Laboratories IDXX Stock Holding History

DF Dent & Co’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	$22.5M	Sell	40,023 -2,414	-6%	-$1.55M	0.43%	66
2025 Q4	$28.7M	Sell	42,437 -2,010	-5%	-$1.37M	0.41%	65
2025 Q3	$28.4M	Sell	44,447 -1,769	-4%	-$1.07M	0.37%	65
2025 Q2	$24.8M	Sell	46,216 -8,102	-15%	-$3.87M	0.31%	73
2025 Q1	$22.8M	Buy	54,318 +1,046	+2%	+$454K	0.3%	70
2024 Q4	$22M	Sell	53,272 -941	-2%	-$413K	0.28%	77
2024 Q3	$27.4M	Sell	54,213 -1,386	-2%	-$673K	0.33%	67
2024 Q2	$27.1M	Sell	55,599 -682	-1%	-$342K	0.35%	58
2024 Q1	$30.4M	Sell	56,281 -1,322	-2%	-$722K	0.37%	55
2023 Q4	$32M	Sell	57,603 -1,667	-3%	-$783K	0.42%	54
2023 Q3	$25.9M	Sell	59,270 -13,042	-18%	-$6.5M	0.38%	55
2023 Q2	$36.3M	Sell	72,312 -50,892	-41%	-$24.4M	0.49%	49
2023 Q1	$61.6M	Sell	123,204 -28,375	-19%	-$13.6M	0.87%	40
2022 Q4	$61.8M	Sell	151,579 -146,964	-49%	-$57M	0.92%	40
2022 Q3	$97.3M	Sell	298,543 -3,956	-1%	-$1.45M	1.5%	29
2022 Q2	$106M	Buy	302,499 +86,390	+40%	+$35.2M	1.5%	33
2022 Q1	$118M	Buy	216,109 +949	+0.4%	+$499K	1.36%	34
2021 Q4	$142M	Sell	215,160 -12,178	-5%	-$7.64M	1.42%	32
2021 Q3	$141M	Sell	227,338 -29,042	-11%	-$19.5M	1.45%	31
2021 Q2	$162M	Sell	256,380 -2,841	-1%	-$1.57M	1.72%	31
2021 Q1	$127M	Buy	259,221 +656	+0.3%	+$329K	1.47%	32
2020 Q4	$129M	Buy	258,565 +4,006	+2%	+$1.79M	1.5%	31
2020 Q3	$100M	Buy	254,559 +10,635	+4%	+$3.93M	1.35%	35
2020 Q2	$80.5M	Buy	243,924 +89,173	+58%	+$25.8M	1.22%	37
2020 Q1	$37.5M	Buy	154,751 +55,767	+56%	+$14.6M	0.72%	38
2019 Q4	$25.8M	Sell	98,984 -3,532	-3%	-$931K	0.44%	40
2019 Q3	$27.9M	Sell	102,516 -4,414	-4%	-$1.23M	0.5%	37
2019 Q2	$29.4M	Sell	106,930 -4,066	-4%	-$1M	0.54%	39
2019 Q1	$24.8M	Sell	110,996 -521	-0.5%	-$108K	0.49%	41
2018 Q4	$20.7M	Sell	111,517 -5,067	-4%	-$1.04M	0.52%	43
2018 Q3	$29.1M	Sell	116,584 -600	-0.5%	-$146K	0.61%	42
2018 Q2	$25.5M	Sell	117,184 -3,423	-3%	-$705K	0.57%	40
2018 Q1	$23.1M	Hold	120,607	–	–	0.53%	41
2017 Q4	$18.9M	Sell	120,607 -1,822	-1%	-$287K	0.47%	42
2017 Q3	$19M	Sell	122,429 -170	-0.1%	-$26.9K	0.49%	40
2017 Q2	$19.8M	Sell	122,599 -365	-0.3%	-$59.3K	0.52%	42
2017 Q1	$19M	Buy	122,964 +5	+0%	+$689	0.54%	41
2016 Q4	$14.4M	Sell	122,959 -205	-0.2%	-$23.4K	0.4%	45
2016 Q3	$13.9M	Sell	123,164 -470	-0.4%	-$49.5K	0.38%	44
2016 Q2	$11.5M	Buy	123,634 +1,581	+1%	+$136K	0.32%	50
2016 Q1	$9.56M	Buy	122,053 +1,775	+1%	+$128K	0.28%	48
2015 Q4	$8.77M	Buy	120,278 +2,150	+2%	+$153K	0.25%	50
2015 Q3	$8.77M	Sell	118,128 -7,828	-6%	-$561K	0.25%	52
2015 Q2	$8.08M	Buy	+125,956	New	+$8.72M	0.22%	51
2014 Q2	–	Sell	-8,600	Closed	-$522K	–	177
2014 Q1	$522K	Buy	8,600 +4,444	+107%	+$265K	0.01%	115
2013 Q4	$221K	Hold	4,156	–	–	0.01%	235
2013 Q3	$207K	Sell	4,156 -5,280	-56%	-$254K	0.01%	153
2013 Q2	$423K	Buy	+9,436	New	+$412K	0.01%	111

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

DF Dent & Co's IDXX Position: Q1 2026 in Review

DF Dent & Co reduced its Idexx Laboratories (IDXX) stake by 5.7% in Q1 2026, selling an estimated $1.55M and leaving 40,023 shares worth $22.5M. The position accounts for 0.43% of the portfolio, ranked #66.

DF Dent & Co first reported a position in IDXX in Q2 2013 and has held it in 48 quarters since. The position peaked at $162M in Q2 2021. 1,311 funds tracked by Wall St. Rank hold IDXX as of Q1 2026.

DF Dent & Co held 40,023 shares of Idexx Laboratories worth $22.5M as of Q1 2026.
DF Dent & Co sold 2,414 Idexx Laboratories shares in Q1 2026, an estimated $1.55M.
Idexx Laboratories made up 0.43% of DF Dent & Co's portfolio in Q1 2026, its #66 holding.
DF Dent & Co first reported a position in Idexx Laboratories in Q2 2013 and has held it in 48 quarters since.
DF Dent & Co's Idexx Laboratories position peaked at $162M in Q2 2021.
1,311 funds tracked by Wall St. Rank held Idexx Laboratories as of Q1 2026.

Based on DF Dent & Co's 13F filing for Q1 2026, filed 15 May 2026.