IDEXX Laboratories, Inc.
US ˙ NasdaqGS ˙ US45168D1046

SecurityIDXX / IDEXX Laboratories, Inc.
InstitutionWetherby Asset Management Inc
Latest Disclosed Ownership1,396 shares
Latest Disclosed Value $ 891,891
Wetherby Asset Management Inc reports 4.25% decrease in ownership of IDXX / IDEXX Laboratories, Inc.

On November 14, 2025 - Wetherby Asset Management Inc filed a 13F-HR form disclosing ownership of 1,396 shares of IDEXX Laboratories, Inc. (US:IDXX) valued at $891,890 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 1,458 shares of IDEXX Laboratories, Inc.. This represents a change in shares of -4.25% during the quarter. The current value of the position is $784,775 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-11-14 2025-09-30 13F IDEXX LABS COM 45168D104 1,396 -62 -4.25 892 14.08 0.0364
2025-08-14 2025-06-30 13F IDEXX LABS COM 45168D104 1,458 -64 -4.20 782 24.17 0.0348
2025-02-14 2024-12-31 13F IDEXX LABS COM 45168D104 1,522 -304 -16.65 629 -31.78 0.0302
2024-11-14 2024-09-30 13F IDEXX LABS COM 45168D104 1,826 -71 -3.74 923 -0.22 0.0422
2024-08-14 2024-06-30 13F IDEXX LABS COM 45168D104 1,897 -24 -1.25 924 -10.90 0.0436
2024-05-15 2024-03-31 13F IDEXX LABS COM 45168D104 1,921 4 0.21 1,037 -2.54 0.0494
2024-02-14 2023-12-31 13F IDEXX LABS COM 45168D104 1,917 -44 -2.24 1,064 24.15 0.0554
2023-11-14 2023-09-30 13F IDEXX LABS COM 45168D104 1,961 -23 -1.16 857 -13.96 0.0486
2023-08-14 2023-06-30 13F IDEXX LABS COM 45168D104 1,984 -58 -2.84 996 -2.45 0.0537
2023-05-12 2023-03-31 13F IDEXX LABS COM 45168D104 2,042 -556 -21.40 1,021 -3.59 0.0598
2023-02-14 2022-12-31 13F IDEXX LABS COM 45168D104 2,598 228 9.62 1,060 37.18 0.0681
2022-11-14 2022-09-30 13F IDEXX LABS COM 45168D104 2,370 301 14.55 772 6.34 0.0544
2022-08-15 2022-06-30 13F IDEXX LABS COM 45168D104 2,069 -24 -1.15 726 -36.59 0.0496
2022-05-16 2022-03-31 13F IDEXX LABS COM 45168D104 2,093 118 5.97 1,145 -11.92 0.0656
2022-02-14 2021-12-31 13F IDEXX LABS COM 45168D104 1,975 -32 -1.59 1,300 4.17 0.0730
2021-11-15 2021-09-30 13F IDEXX LABS COM 45168D104 2,007 1 0.05 1,248 -1.50 0.0770
2021-08-16 2021-06-30 13F IDEXX LABS COM 45168D104 2,006 51 2.61 1,267 32.39 0.0773
2021-05-14 2021-03-31 13F IDEXX LABS COM 45168D104 1,955 -7 -0.36 957 -2.45 0.0729
2021-02-11 2020-12-31 13F IDEXX LABS COM 45168D104 1,962 1,848 1,621.05 981 2,080.00 0.0665
2020-12-16 2020-09-30 13F/A-01 IDEXX LABS COM 45168D104 1,840 -412 723 0.0663
2020-12-16 2020-09-30 13F/A-02 IDEXX LABS COM 45168D104 114 -2,138 -94.94 45 -93.94 0.1352
2020-11-13 2020-09-30 13F IDEXX LABS COM 45168D104 1,962 -290 771 49,042.3698
2020-08-14 2020-06-30 13F IDEXX LABS COM 45168D104 2,252 112 5.23 743 43.44 0.0704
2020-05-06 2020-03-31 13F IDEXX LABS COM 45168D104 2,140 196 10.08 518 1.97 0.0581
2020-01-28 2019-12-31 13F IDEXX LABS COM 45168D104 1,944 -165 -7.82 508 -11.50 0.0500
2019-10-31 2019-09-30 13F IDEXX LABS COM 45168D104 2,109 115 5.77 574 4.55 0.0599
2019-07-25 2019-06-30 13F IDEXX LABS COM 45168D104 1,994 175 9.62 549 34.89 0.0601
2019-07-25 2019-03-31 13F/A-1 IDEXX LABS COM 45168D104 1,819 82 4.72 407 26.01 0.0507
2019-05-09 2019-03-31 13F IDEXX LABS COM 45168D104 1,819 82 407
2019-01-30 2018-12-31 13F IDEXX LABS COM 45168D104 1,737 156 9.87 323 -18.23 0.0457
2018-11-07 2018-09-30 13F IDEXX LABS COM 45168D104 1,581 -5 -0.32 395 14.16 0.0488
2018-07-24 2018-06-30 13F IDEXX LABS COM 45168D104 1,586 -156 -8.96 346 3.59 0.0468
2018-05-04 2018-03-31 13F IDEXX LABS COM 45168D104 1,742 1,742 334 0.0461
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.