IDEXX Laboratories, Inc.
US ˙ NasdaqGS ˙ US45168D1046

SecurityIDXX / IDEXX Laboratories, Inc.
InstitutionJohnson Financial Group, Inc.
Latest Disclosed Ownership1,671 shares
Latest Disclosed Value $ 938,919
Johnson Financial Group, Inc. reports 2,994.44% increase in ownership of IDXX / IDEXX Laboratories, Inc.

On May 7, 2026 - Johnson Financial Group, Inc. filed a 13F-HR form disclosing ownership of 1,671 shares of IDEXX Laboratories, Inc. (US:IDXX) valued at $938,918 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 54 shares of IDEXX Laboratories, Inc.. This represents a change in shares of 2,994.44% during the quarter. The current value of the position is $939,369 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)
2026-05-07 2026-03-31 13F IDEXX LABS COM 45168D104 1,671 1,617 2,994.44 939 2,505.56 0.0340
2026-02-12 2025-12-31 13F IDEXX LABS COM 45168D104 54 -9 -14.29 37 -10.00 0.0014
2025-11-13 2025-09-30 13F IDEXX LABS COM 45168D104 63 59 1,475.00 40 1,900.00 0.0015
2025-08-13 2025-06-30 13F IDEXX LABS COM 45168D104 4 0 0.00 2 100.00 0.0001
2025-05-15 2025-03-31 13F IDEXX LABS COM 45168D104 4 -5 -55.56 2 -66.67 0.0001
2025-02-14 2024-12-31 13F IDEXX LABS COM 45168D104 9 -39 -81.25 4 -87.50 0.0002
2024-11-13 2024-09-30 13F IDEXX LABS COM 45168D104 48 48 24 0.0011
2024-08-14 2024-06-30 13F IDEXX LABS COM 45168D104 0 -1 -100.00 0 0.0000
2024-05-14 2024-03-31 13F IDEXX LABS COM 45168D104 1 0 0.00 1 0.0000
2024-02-09 2023-12-31 13F/A-1 IDEXX LABS COM 45168D104 1 1 1 0.0000
2024-02-09 2023-12-31 13F IDEXX LABS COM 45168D104 1 1 1 0.0000
2023-02-13 2022-12-31 13F IDEXX LABS COM 45168D104 0 -10 -100.00 0 -100.00
2022-11-14 2022-09-30 13F IDEXX LABS COM 45168D104 10 7 233.33 3 200.00 0.0003
2022-08-15 2022-06-30 13F IDEXX LABS COM 45168D104 3 3 1 0.0001
2021-05-14 2021-03-31 13F IDEXX LABS COM 45168D104 0 -138 -100.00 0 -100.00
2021-02-12 2020-12-31 13F IDEXX LABS COM 45168D104 138 138 69 0.0059
2020-08-11 2020-06-30 13F IDEXX LABORATORIES COM 45168D104 0 -100 -100.00 0 -100.00
2020-05-14 2020-03-31 13F IDEXX LABORATORIES COM 45168D104 100 -57 -36.31 24 -41.46 0.0029
2020-02-14 2019-12-31 13F IDEXX LABORATORIES COM 45168D104 157 0 0.00 41 -4.65 0.0037
2019-11-12 2019-09-30 13F IDEXX LABORATORIES COM 45168D104 157 157 43 0.0039
2017-08-10 2017-06-30 13F IDEXX LABS COM 45168D104 0 -607 -100.00 0 -100.00
2017-05-12 2017-03-31 13F IDEXX LABS COM 45168D104 607 0 0.00 94 32.39 0.0118
2017-02-07 2016-12-31 13F/A-1 IDEXX LABS COM 45168D104 607 0 0.00 71 4.41 0.0098
2017-02-02 2016-12-31 13F IDEXX LABS COM 45168D104 607 71
2016-11-14 2016-09-30 13F IDEXX LABS COM 45168D104 607 -100 -14.14 68 3.03 0.0091
2016-08-12 2016-06-30 13F IDEXX LABS COM 45168D104 707 587 489.17 66 633.33 0.0091
2016-05-09 2016-03-31 13F IDEXX LABS COM 45168D104 120 0 0.00 9 0.00 0.0018
2016-02-08 2015-12-31 13F IDEXX LABS COM 45168D104 120 0 0.00 9 0.00 0.0019
2015-11-02 2015-09-30 13F IDEXX LABS COM 45168D104 120 0 0.00 9 12.50 0.0020
2015-08-11 2015-06-30 13F IDEXX LABS COM 45168D104 120 60 100.00 8 -11.11 0.0017
2015-05-12 2015-03-31 13F IDEXX LABS COM 45168D104 60 0 0.00 9 0.00 0.0019
2015-02-10 2014-12-31 13F IDEXX LABS COM 45168D104 60 0 0.00 9 28.57 0.0021
2014-11-14 2014-09-30 13F IDEXX LABS COM 45168D104 60 0 0.00 7 -12.50 0.0018
2014-08-06 2014-06-30 13F IDEXX LABS COM 45168D104 60 0 0.00 8 14.29 0.0021
2014-05-14 2014-03-31 13F IDEXX LABS COM 45168D104 60 -20 -25.00 7 -22.22 0.0020
2014-02-11 2013-12-31 13F IDEXX LABS COM 45168D104 80 0 0.00 9 12.50 0.0026
2013-11-14 2013-09-30 13F IDEXX LABS COM 45168D104 80 80 8 0.0024
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.