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IDXX in the 13F filings

Idexx Labs Inc · CUSIP 45168D104

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2024
the date the book describes
Filed
14 Nov 2024
latest of these filings; the earliest 14 May 2024
Managers listing it
17
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q4 2023 and Q1 2024; 11 listed it in both
Shares listed
6,926,294
combined, among listed positions
Reported value
$3.7bn
combined, at the quarter end

Among the 93 comparable managers: 12 buyers (opened or added shares) and 7 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing IDXX in Q1 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

17 of 17 holders

ActionFiling
AllianceBernstein LP2,990,404$1.6bn0.57%Added+52,64414 May 2024 (the filing on sec.gov)
Invesco Ltd1,470,111$794m0.17%Added+143,51814 May 2024 (the filing on sec.gov)
Neuberger Berman Group LLC472,362$255m0.21%Trimmed-11,62614 Nov 2024 (the filing on sec.gov)
MFS Investment Management347,092$187m0.06%Added+2814 May 2024 (the filing on sec.gov)
Capital Research Global Investors336,086$181munder 0.1%Added+91,22514 May 2024 (the filing on sec.gov)
T. Rowe Price Associates Inc277,516$150munder 0.1%Added+9015 May 2024 (the filing on sec.gov)
Millennium Management LLC237,143$128m0.05%Trimmed-88,48215 May 2024 (the filing on sec.gov)
Arrowstreet Capital LP172,577$93m0.09%Trimmed-2,59615 May 2024 (the filing on sec.gov)
Man Group PLC156,398$84m0.21%Added+120,56915 May 2024 (the filing on sec.gov)
Point72 Asset Management LP125,550$68m0.16%Trimmed-14,98015 May 2024 (the filing on sec.gov)
D. E. Shaw & Co.115,672$62m0.05%Addedn.a.15 May 2024 (the filing on sec.gov)
Squarepoint Ops LLC86,027$46m0.08%Addedn.a.15 May 2024 (the filing on sec.gov)
AQR Capital Management LLC57,369$31m0.05%Addedn.a.15 May 2024 (the filing on sec.gov)
Two Sigma Investments LP45,181$24m0.06%Addedn.a.15 May 2024 (the filing on sec.gov)
Bridgewater Associates LP34,525$19m0.09%Trimmed-24,33714 May 2024 (the filing on sec.gov)
Winton Group Ltd1,354$731k0.05%Newnew14 May 2024 (the filing on sec.gov)
Caxton Associates LLP927$501kunder 0.1%Newnew15 May 2024 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2023 to Q1 2024, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (2)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
17 in Q3 2024 to 22 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
IDXX by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20136$1.5bnn.a.n.a.
Q3 20135$1.6bnn.a.n.a.
Q4 20136$1.7bnn.a.n.a.
Q1 20148$1.9bnn.a.n.a.
Q2 20147$2.1bnn.a.n.a.
Q3 201411$1.6bnn.a.n.a.
Q4 201412$1.8bnn.a.n.a.
Q1 201510$1.7bnn.a.n.a.
Q2 201512$1.4bnn.a.n.a.
Q3 201513$1.6bnn.a.n.a.
Q4 20157$1.5bnn.a.n.a.
Q1 20169$1.3bnn.a.n.a.
Q2 201611$886mn.a.n.a.
Q3 201612$1.1bnn.a.n.a.
Q4 201611$943mn.a.n.a.
Q1 201714$1.8bnn.a.n.a.
Q2 201720$1.8bnn.a.n.a.
Q3 201722$1.8bnn.a.n.a.
Q4 201719$1.7bnn.a.n.a.
Q1 201820$2.1bnn.a.n.a.
Q2 201822$2.5bnn.a.n.a.
Q3 201817$2.5bnn.a.n.a.
Q4 201822$1.9bnn.a.n.a.
Q1 201919$2.1bnn.a.n.a.
Q2 201920$2.7bnn.a.n.a.
Q3 201915$2.5bnn.a.n.a.
Q4 201916$2.3bnn.a.n.a.
Q1 202019$2.3bnn.a.n.a.
Q2 202018$3.1bnn.a.n.a.
Q3 202018$2.9bnn.a.n.a.
Q4 202015$3.5bnn.a.n.a.
Q1 202122$3.5bnn.a.n.a.
Q2 202118$4.5bnn.a.n.a.
Q3 202120$4.6bnn.a.n.a.
Q4 202117$4.9bnn.a.n.a.
Q1 202218$4.7bnn.a.n.a.
Q2 202220$3.5bnn.a.n.a.
Q3 202217$2.7bnn.a.n.a.
Q4 202213$3.5bnn.a.n.a.
Q1 202318$4.2bnn.a.n.a.
Q2 202316$3.7bnn.a.n.a.
Q3 202315$3.2bnn.a.n.a.
Q4 202316$4.1bn127
Q1 202417$3.7bn127
Q2 202413$3.7bn86
Q3 202417$3.8bn116
Q4 202422$2.6bn156
Q1 202517$2.4bn126
Q2 202511$2.5bn76
Q3 202510$2.8bn64
Q4 202514$5.1bn1717
Q1 202616$4.7bn2313
Q2 202622$4.9bn2616

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

IDXX and LLY →IDXX and JNJ →IDXX and VRTX →Choose a stock to compare with IDXX →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own IDXX, latest filings →Back to the 13F Explorer →