Elyxium Wealth, LLC
· Reduced
−$3.5B
Change
−5.4M
Date
Q1 2026
ID
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Elyxium Wealth, LLC
· Reduced
−$3.5B
Change
−5.4M
Date
Q1 2026
|
Elyxium Wealth, LLC | Reduced· Q1 2026 | −$3.5B | −5.4M | – | Q1 2026 | |||||
|
J. Stern & Co. LLP
· Reduced
−$1.7B
Change
−2.6M
Date
Q1 2026
|
J. Stern & Co. LLP | Reduced· Q1 2026 | −$1.7B | −2.6M | – | Q1 2026 | |||||
|
Capital World Investors
· New
+$319M
Change
+498K
Date
Q1 2026
|
Capital World Investors | New· Q1 2026 | +$319M | +498K | – | Q1 2026 | |||||
|
Norges
· Exited
−$315M
Change
−491K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | −$315M | −491K | −100.0% | Q1 2026 | |||||
|
Fundsmith LLP
· Reduced
−$263M
Change
−410K
Δ Own
−21.9%
Date
Q1 2026
|
Fundsmith LLP | Reduced· Q1 2026 | −$263M | −410K | −21.9% | Q1 2026 | |||||
|
CIBC Bancorp USA Inc.
· Added
+$227M
Change
+354K
Date
Q1 2026
|
CIBC Bancorp USA Inc. | Added· Q1 2026 | +$227M | +354K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Reduced
−$201M
Change
−314K
Date
Q1 2026
|
T. Rowe Price Associates | Reduced· Q1 2026 | −$201M | −314K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Added
+$185M
Change
+288K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Added· Q1 2026 | +$185M | +288K | – | Q1 2026 | |||||
|
Polen Capital Management LLC
· Reduced
−$170M
Change
−265K
Date
Q1 2026
|
Polen Capital Management LLC | Reduced· Q1 2026 | −$170M | −265K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
−$152M
Change
−238K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | −$152M | −238K | – | Q1 2026 | |||||
|
Alyeska Investment Group, L.P.
· New
+$130M
Change
+203K
Date
Q1 2026
|
Alyeska Investment Group, L.P. | New· Q1 2026 | +$130M | +203K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
+$113M
Change
+176K
Δ Own
+11.7%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | +$113M | +176K | +11.7% | Q1 2026 | |||||
|
Capital Research Global Investors
· Added
+$111M
Change
+174K
Δ Own
+28.6%
Date
Q1 2026
|
Capital Research Global Investors | Added· Q1 2026 | +$111M | +174K | +28.6% | Q1 2026 | |||||
|
BlackRock
· Reduced
−$109M
Change
−169K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$109M | −169K | – | Q1 2026 | |||||
|
Montrusco Bolton Investments Inc.
· Added
+$106M
Change
+165K
Date
Q1 2026
|
Montrusco Bolton Investments Inc. | Added· Q1 2026 | +$106M | +165K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Fennell George
· Officer
2 operations
0
|
Fennell George | Officer | 2 operations | – | 0 | – | 0 | – | Jun 1, 2026 | Jun 2, 2026 | |||||||||
|
Fennell George
· Officer
Tax withholding or exercise payment (F)
-$161K
|
Fennell George | Officer | Tax withholding or exercise payment (F) | $566.79 | -284 | -$161K | 10K | – | Jun 1, 2026 | Jun 2, 2026 | |||||||||
|
Vandebroek Sophie V
· Director
2 operations
759
|
Vandebroek Sophie V | Director | 2 operations | – | 759 | – | 234 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Samad Sam
· Director
2 operations
759
|
Samad Sam | Director | 2 operations | – | 759 | – | 1K | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Peacock Karen
· Director
2 operations
759
|
Peacock Karen | Director | 2 operations | – | 759 | – | 234 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Kingsley Lawrence D.
· Director
4 operations
1K
|
Kingsley Lawrence D. | Director | 4 operations | – | 1K | – | 75 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Junius Daniel M.
· Director
2 operations
759
|
Junius Daniel M. | Director | 2 operations | – | 759 | – | 234 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Hooley Joseph L.
· Director
2 operations
759
|
Hooley Joseph L. | Director | 2 operations | – | 759 | – | 234 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Essig Stuart
· Director
2 operations
759
|
Essig Stuart | Director | 2 operations | – | 759 | – | 234 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Claflin Bruce L.
· Director
2 operations
759
|
Claflin Bruce L. | Director | 2 operations | – | 759 | – | 1K | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Britt Irene Chang
· Director
2 operations
759
|
Britt Irene Chang | Director | 2 operations | – | 759 | – | 753 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Vandebroek Sophie V
· Director
2 operations
0
|
Vandebroek Sophie V | Director | 2 operations | – | 0 | – | 0 | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Szostak M. Anne
· Director
2 operations
0
|
Szostak M. Anne | Director | 2 operations | – | 0 | – | 0 | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Peacock Karen
· Director
2 operations
0
|
Peacock Karen | Director | 2 operations | – | 0 | – | 0 | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Kingsley Lawrence D.
· Director
4 operations
0
|
Kingsley Lawrence D. | Director | 4 operations | – | 0 | – | 0 | – | May 7, 2026 | May 11, 2026 | |||||||||
M
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1,229 reporting institutions disclosed IDXX position changes in the Q1 2026 snapshot. The largest disclosed owners include Invesco Ltd., Bamco Inc, Bank of New York Mellon Corp. WhoBought does not publish a total institutional-ownership percentage for IDXX: aggregate 13F filings can report the same shares more than once (a parent manager and its subsidiary filers, or shares out on loan), so a summed percentage would overstate what institutions really hold.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.