1159 tracked 13F filers disclose a position in IDXX as of the latest SEC 13F filings, a combined $35.0B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $4.7B | 8.4M | ▼−2.0% Reduced · −169K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $2.9B | 5.2M | →First observed position No prior filed position | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.2B | 3.9M | →First observed position No prior filed position | Q1 2026 | |
| 4 | STATE STREET CORP | $2.0B | 3.7M | ▲+2.0% Added · +74K sh | Q2 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $1.3B | 2.6M | ▼−3.7% Reduced · −98K sh | Q2 2026 | |
| 6 | Bank of New York Mellon Corp | $845.4M | 1.5M | ▼−7.4% Reduced · −120K sh | Q1 2026 | |
| 7 | Fundsmith LLP | $823.6M | 1.5M | ▼−22% Reduced · −410K sh | Q1 2026 | |
| 8 | MORGAN STANLEY | $739.4M | 1.3M | ▼−15% Reduced · −238K sh | Q1 2026 | |
| 9 | BLAIR WILLIAM & CO/IL | $483.6M | 919K | ▼−2.9% Reduced · −28K sh | Q2 2026 | |
| 10 | NORTHERN TRUST CORP | $512.4M | 912K | ▼−1.2% Reduced · −11K sh | Q1 2026 | |
| 11 | PRINCIPAL FINANCIAL GROUP INC | $495.2M | 881K | ▼−9.1% Reduced · −88K sh | Q1 2026 | |
| 12 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $489.8M | 872K | ▲+1.4% Added · +12K sh | Q1 2026 | |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $471.3M | 839K | ▲+52% Added · +288K sh | Q1 2026 | |
| 14 | JPMORGAN CHASE & CO | $434.5M | 780K | ▲+16% Added · +107K sh | Q1 2026 | |
| 15 | GOLDMAN SACHS GROUP INC | $402.8M | 717K | ▼−14% Reduced · −115K sh | Q1 2026 | |
| 16 | FRANKLIN RESOURCES INC | $372.3M | 663K | ▲+5.7% Added · +35K sh | Q1 2026 | |
| 17 | Legal & General Group Plc | $365.7M | 651K | ▼−3.0% Reduced · −20K sh | Q1 2026 | |
| 18 | PRICE T ROWE ASSOCIATES INC /MD/ | $358.5M | 638K | ▼−33% Reduced · −314K sh | Q1 2026 | |
| 19 | Amundi | $343.2M | 611K | ▼−1.3% Reduced · −8K sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $342.9M | 610K | ▲+3.4% Added · +20K sh | Q1 2026 | |
| 21 | AMERICAN CENTURY COMPANIES INC | $337.1M | 600K | ▼−4.6% Reduced · −29K sh | Q1 2026 | |
| 22 | DIMENSIONAL FUND ADVISORS LP | $322.1M | 573K | ▲+4.3% Added · +24K sh | Q1 2026 | |
| 23 | POLEN CAPITAL MANAGEMENT LLC | $280.3M | 532K | ▼−23% Reduced · −163K sh | Q2 2026 | |
| 24 | NORGES BANK | $332.3M | 491K | ▲+19% Added · +77K sh | Q4 2025 | |
| 25 | BANK OF AMERICA CORP /DE/ | $274.2M | 488K | ▲+0.1% Added · +659 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 2 funds opened a new position in IDXX and 27 added to an existing one, while 23 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 749 funds | $351.2B |
| NVIDIA CORPNVDA | 737 funds | $496.9B |
| APPLE INCAAPL | 734 funds | $393.2B |
| AMAZON.COM INCAMZN | 732 funds | $264.1B |
| ALPHABET INC-CL AGOOGL | 722 funds | $235.7B |
| META PLATFORMS INC-CLASS AMETA | 718 funds | $141.3B |
| ELI LILLY & COLLY | 710 funds | $100.6B |
| VISA INC-CLASS A SHARESV | 700 funds | $86.2B |
| JPMORGAN CHASE & COJPM | 698 funds | $89.2B |
| ALPHABET INC-CL CGOOG | 693 funds | $160.0B |
| BROADCOM INCAVGO | 688 funds | $197.7B |
| JOHNSON & JOHNSONJNJ | 680 funds | $63.3B |
Ranked by how many of IDXX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 3, 2026 | Hunt Nimrata | Executive Vice President | Sell (S) | 2K | $1.1M |
| Feb 26, 2026 | Hunt Nimrata | Executive Vice President | Sell (S) | 3K | $1.8M |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 3K | $1.9M |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 1K | $713K |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 1K | $834K |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 3K | $1.7M |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 1K | $662K |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 1K | $793K |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 3K | $1.9M |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 2K | $1.1M |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 1K | $765K |
| Feb 26, 2026 | MAZELSKY JONATHAN JAY | President and CEO, Director | Sell (S) | 1K | $727K |
Connected entities for IDXX
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/IDXX/capital-change-brief"
Use Arkolith's capital_change_brief for IDXX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for IDXX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.