As of the latest SEC filings, IDEXX LABORATORIES INC /DE (IDXX) is held by 922 institutional funds. The largest fund shareholder is VANGUARD TOTAL STOCK MARKET INDEX FUND (VTI), holding an estimated $1,420,345,542.00 in market value, representing 0.07% of its portfolio.
Funds holding IDEXX LABORATORIES INC /DE (IDXX)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- IDXX
- CIK:
- 0000874716
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
|
ETF | Vanguard | 0.07% | $1,420,345,542.00 | 2,527,800 | Mar 31, 2026 | May 28, 2026 |
|
VFIAX
VANGUARD 500 INDEX FUND
|
ETF | Vanguard | 0.08% | $1,140,711,431.37 | 2,030,133 | Mar 31, 2026 | May 28, 2026 |
|
VO
VANGUARD MID-CAP INDEX FUND
|
ETF | Vanguard | 0.49% | $966,210,311.08 | 1,719,572 | Mar 31, 2026 | May 28, 2026 |
|
QQQ
Invesco QQQ Trust Series 1
|
ETF | Invesco | 0.25% | $942,492,372.29 | 1,677,361 | Mar 31, 2026 | May 28, 2026 |
|
FXAIX
Fidelity 500 Index Fund
|
MF | Fidelity | 0.09% | $667,371,652.92 | 1,016,204 | Feb 28, 2026 | Apr 24, 2026 |
|
IVV
iShares Core S&P 500 ETF
|
ETF | BlackRock / iShares | 0.08% | $577,361,079.26 | 1,027,534 | Mar 31, 2026 | May 28, 2026 |
|
SPY
SPDR S&P 500 ETF Trust
|
ETF | State Street (SPDR) | 0.08% | $522,533,538.73 | 929,957 | Mar 31, 2026 | May 28, 2026 |
|
VIGRX
VANGUARD GROWTH INDEX FUND
|
ETF | Vanguard | 0.16% | $520,916,981.20 | 927,080 | Mar 31, 2026 | May 28, 2026 |
|
CAFAX
AMCAP Fund
|
MF | Independent / Boutique | 0.51% | $481,291,804.53 | 732,861 | Feb 28, 2026 | Apr 27, 2026 |
|
BPTRX
Baron Partners Fund
|
MF | Independent / Boutique | 3.36% | $348,371,800.00 | 620,000 | Mar 31, 2026 | May 22, 2026 |
|
VMGIX
VANGUARD MID-CAP GROWTH INDEX FUND
|
ETF | Vanguard | 1.16% | $340,295,755.03 | 605,627 | Mar 31, 2026 | May 28, 2026 |
|
XLV
State Street(R) Health Care Select Sector SPDR(R) ETF
|
ETF | State Street (SPDR) | 0.85% | $326,499,107.97 | 581,073 | Mar 31, 2026 | May 28, 2026 |
|
IWP
iShares Russell Mid-Cap Growth ETF
|
ETF | BlackRock / iShares | 1.61% | $300,385,270.22 | 534,598 | Mar 31, 2026 | May 28, 2026 |
|
CWMAX
Washington Mutual Investors Fund
|
MF | Capital Group / American Funds | 0.12% | $254,977,253.60 | 454,667 | Apr 30, 2026 | Jun 26, 2026 |
|
VIIIX
VANGUARD INSTITUTIONAL INDEX FUND
|
MF | Vanguard | 0.08% | $252,983,667.93 | 450,237 | Mar 31, 2026 | May 28, 2026 |
|
PMAQX
MidCap Fund
|
MF | Independent / Boutique | 0.99% | $248,955,383.20 | 443,929 | Apr 30, 2026 | Jun 25, 2026 |
|
VWUAX
VANGUARD U.S. GROWTH FUND
|
MF | Vanguard | 0.47% | $204,811,101.45 | 311,865 | Feb 28, 2026 | Apr 28, 2026 |
|
BMGKX
BlackRock Mid-Cap Growth Equity Portfolio
|
MF | BlackRock / iShares | 3.43% | $202,741,745.22 | 308,714 | Feb 27, 2026 | Apr 24, 2026 |
|
QQQM
Invesco NASDAQ 100 ETF
|
ETF | Invesco | 0.28% | $199,435,109.67 | 303,679 | Feb 28, 2026 | Apr 29, 2026 |
|
IWF
iShares Russell 1000 Growth ETF
|
ETF | BlackRock / iShares | 0.16% | $180,502,667.38 | 321,242 | Mar 31, 2026 | May 22, 2026 |
|
IWR
iShares Russell Mid-Cap ETF
|
ETF | BlackRock / iShares | 0.35% | $171,125,847.06 | 304,554 | Mar 31, 2026 | May 28, 2026 |
|
FSMDX
Fidelity Mid Cap Index Fund
|
MF | Fidelity | 0.33% | $165,498,248.80 | 295,111 | Apr 30, 2026 | Jun 26, 2026 |
|
VHCIX
VANGUARD HEALTH CARE INDEX FUND
|
ETF | Vanguard | 0.78% | $157,824,040.14 | 240,318 | Feb 28, 2026 | Apr 28, 2026 |
|
RSP
Invesco S&P 500 Equal Weight ETF
|
ETF | Invesco | 0.18% | $157,532,645.60 | 280,907 | Apr 30, 2026 | Jun 29, 2026 |
|
BARIX
BARON ASSET FUND
|
MF | Independent / Boutique | 4.56% | $151,247,302.64 | 269,176 | Mar 31, 2026 | May 22, 2026 |
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