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IDEXX Laboratories, Inc.

IDXX Healthcare
$585.73 +$11.91 (2.08%)
Market Cap: $46.64 B
Gurus Holding
10
Popularity Rank
#472
% of Shares Held
2.67%
Net Activity (Q4 2025)
-$681.26 M

Guru Ownership Trend

Guru Analysis for IDEXX Laboratories, Inc. (IDXX)

IDEXX Laboratories, Inc. (IDXX), a key player in the Healthcare sector, continues to attract institutional attention.

As of Q4 2025, a total of 10 Super Investors (Gurus) hold positions in the company, with a combined stake valued at approximately $1.25 B.

Top institutional holders include Terry Smith and Cliff Asness.

Notably, Terry Smith has expressed high conviction in this stock, allocating 7.42% of their equity portfolio to it.

Institutional sentiment is currently Bearish. This is evidenced by a $681.26 M net outflow during the quarter.

Recent activity highlights Steven Cohen who opened a new position. Conversely, Wallace Weitz reduced exposure by 37.9%.

Key Holders

Top 5 by Value

$1.27 B
$77.65 M
$40.41 M
$23.88 M
$13.58 M

Top 5 by Conviction

Recent Activity Breakdown (Q4 2025)

+$15.63 M
Total Buy Value
New Buys 2
Additions 2
-$696.9 M
Total Sell Value
Reductions 6
Sold Out 2

Guru Consensus (Q4 2025)

Based on recent activity
Net Sellers
8
Net Buyers
4

FAQs for IDEXX Laboratories, Inc. (IDXX)

Major holders include Terry Smith ($1.27 B), Cliff Asness ($77.65 M), Joel Greenblatt ($40.41 M). According to the latest reported data, 10 tracked investment managers collectively hold approximately 2.13 M shares.

According to the latest 13F reporting period, sentiment appears Bearish (Net Selling). There was a net outflow of $681.26 M, with 4 managers increasing positions and 8 managers reducing holdings.

During the most recent reporting period, 6 managers trimmed their positions, while 2 fully exited IDXX. The total reported sell value was $696.9 M.

Yes, 2 managers opened new positions in IDXX, and 2 increased their existing holdings. The total reported buy value was $15.63 M.

Portfolio Manager % Portfolio Activity Shares Value Report Date
7.42% Reduce -28.1% 1,876,035 $1.27 B Q4 2025
0.04% Reduce -15.1% 114,775 $77.65 M Q4 2025
0.15% Add 22.8% 59,738 $40.41 M Q4 2025
1.42% Reduce -37.9% 35,300 $23.88 M Q4 2025
0.07% Reduce -1.9% 20,072 $13.58 M Q4 2025
0.01% New Buy 11,204 $7.58 M Q4 2025
0.02% Reduce -16.8% 6,158 $4.17 M Q4 2025
0.01% Reduce -0.6% 2,131 $1.44 M Q4 2025
0.00% Add 34.0% 1,990 $1.35 M Q4 2025
0.00% New Buy 304 $205,881 Q4 2025
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