IDEXX Laboratories, Inc.
US ˙ NasdaqGS ˙ US45168D1046

SecurityIDXX / IDEXX Laboratories, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership5,129 shares
Latest Disclosed Value $ 2,881,671
Cwm, Llc reports 13.19% decrease in ownership of IDXX / IDEXX Laboratories, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 5,129 shares of IDEXX Laboratories, Inc. (US:IDXX) valued at $2,881,934 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 5,908 shares of IDEXX Laboratories, Inc.. This represents a change in shares of -13.19% during the quarter. The current value of the position is $2,875,984 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)
2026-05-14 2026-03-31 13F IDEXX LABS COM 45168D104 5,129 -779 -13.19 2,882 95,933.33 0.0076
2026-01-26 2025-12-31 13F IDEXX LABS COM 45168D104 5,908 132 2.29 4 0.00 0.0108
2025-10-15 2025-09-30 13F IDEXX LABS COM 45168D104 5,776 139 2.47 4 0.00 0.0111
2025-07-25 2025-06-30 13F IDEXX LABS COM 45168D104 5,637 -438 -7.21 3 50.00 0.0107
2025-05-01 2025-03-31 13F IDEXX LABS COM 45168D104 6,075 2,256 59.07 3 100.00 0.0102
2025-02-04 2024-12-31 13F IDEXX LABS COM 45168D104 3,819 79 2.11 2 0.00 0.0066
2024-10-08 2024-09-30 13F IDEXX LABS COM 45168D104 3,740 16 0.43 2 0.00 0.0081
2024-07-10 2024-06-30 13F IDEXX LABS COM 45168D104 3,724 28 0.76 2 0.00 0.0086
2024-04-05 2024-03-31 13F IDEXX LABS COM 45168D104 3,696 206 5.90 2 0.00 0.0097
2024-02-01 2023-12-31 13F IDEXX LABS COM 45168D104 3,490 266 8.25 2 0.00 0.0104
2023-10-11 2023-09-30 13F IDEXX LABS COM 45168D104 3,224 67 2.12 1 0.00 0.0086
2023-08-03 2023-06-30 13F IDEXX LABS COM 45168D104 3,157 60 1.94 2 0.00 0.0098
2023-05-01 2023-03-31 13F IDEXX LABS COM 45168D104 3,097 70 2.31 2 0.00 0.0105
2023-02-01 2022-12-31 13F IDEXX LABS COM 45168D104 3,027 -202 -6.26 1 -99.90 0.0091
2022-10-27 2022-09-30 13F IDEXX LABS COM 45168D104 3,229 4 0.12 1,052 -6.98 0.0084
2022-07-28 2022-06-30 13F IDEXX LABS COM 45168D104 3,225 345 11.98 1,131 -28.24 0.0088
2022-04-21 2022-03-31 13F IDEXX LABS COM 45168D104 2,880 144 5.26 1,576 -12.54 0.0112
2022-01-31 2021-12-31 13F IDEXX LABS COM 45168D104 2,736 179 7.00 1,802 11.58 0.0127
2021-09-15 2021-06-30 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2021-07-29 2021-06-30 13F IDEXX LABS COM 45168D104 2,557 0 1,615 0.0129
2021-09-15 2021-03-31 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2021-04-27 2021-03-31 13F IDEXX LABS COM 45168D104 2,515 -42 1,231 0.0108
2021-09-15 2020-12-31 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2021-01-27 2020-12-31 13F IDEXX LABS COM 45168D104 2,782 225 1,391 0.0130
2021-09-15 2020-09-30 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2020-10-19 2020-09-30 13F IDEXX LABS COM 45168D104 2,594 37 1,020 0.0113
2021-09-15 2020-06-30 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2020-07-22 2020-06-30 13F IDEXX LABS COM 45168D104 2,589 32 855 0.0101
2021-09-15 2020-03-31 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2020-04-28 2020-03-31 13F IDEXX LABS COM 45168D104 2,359 -198 571 0.0085
2021-09-14 2019-12-31 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2020-01-27 2019-12-31 13F IDEXX LABS COM 45168D104 2,190 -367 572 0.0073
2021-09-14 2019-09-30 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2019-10-22 2019-09-30 13F IDEXX LABS COM 45168D104 923 -1,634 251 0.0037
2021-09-14 2019-06-30 13F/A-1 IDEXX LABS COM 45168D104 2,557 0 0.00 1,615 0.00 0.0129
2019-07-31 2019-06-30 13F IDEXX LABS COM 45168D104 945 -1,612 260 0.0043
2021-09-02 2019-03-31 13F/A-1 IDEXX LABS COM 45168D104 2,557 1,796 236.01 1,615 1,037.32 0.0129
2019-04-22 2019-03-31 13F IDEXX LABS COM 45168D104 745 -16 167 0.0033
2019-01-25 2018-12-31 13F IDEXX LABS COM 45168D104 761 632 489.92 142 343.75 0.0035
2018-10-29 2018-09-30 13F IDEXX LABS COM 45168D104 129 -9 -6.52 32 6.67 0.0008
2018-07-31 2018-06-30 13F IDEXX LABS COM 45168D104 138 -337 -70.95 30 -67.03 0.0010
2018-04-26 2018-03-31 13F IDEXX LABS COM 45168D104 475 0 0.00 91 22.97 0.0036
2018-01-16 2017-12-31 13F IDEXX LABS COM 45168D104 475 -1,025 -68.33 74 -68.24 0.0033
2017-10-16 2017-09-30 13F IDEXX LABS COM 45168D104 1,500 0 0.00 233 -3.72 0.0110
2017-07-17 2017-06-30 13F IDEXX LABS COM 45168D104 1,500 0 0.00 242 4.31 0.0124
2017-04-17 2017-03-31 13F IDEXX LABS COM 45168D104 1,500 -270 -15.25 232 11.54 0.0131
2017-01-19 2016-12-31 13F IDEXX LABS COM 45168D104 1,770 0 0.00 208 4.00 0.0127
2016-10-17 2016-09-30 13F IDEXX LABS COM 45168D104 1,770 1,600 941.18 200 1,150.00 0.0138
2016-07-21 2016-06-30 13F IDEXX LABS COM 45168D104 170 0 0.00 16 23.08 0.0012
2016-04-18 2016-03-31 13F IDEXX LABS COM 45168D104 170 0 0.00 13 8.33 0.0011
2016-02-01 2015-12-31 13F IDEXX LABS COM 45168D104 170 -54 -24.11 12 -50.00 0.0012
2014-02-14 2013-12-31 13F IDEXX LABS COM 45168D104 224 2 0.90 24 9.09 0.0037
2013-11-14 2013-09-30 13F IDEXX LABS COM 45168D104 222 222 22 0.0058
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.