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.
| # | 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 | ▲New +5.2M sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.2B | 3.9M | ▲New +3.9M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $2.1B | 3.7M | ▲+0.5% Added · +18K sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $1.5B | 2.7M | ▲+3.0% Added · +77K sh | Q1 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 | $531.7M | 946K | ▼−5.5% Reduced · −55K sh | Q1 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 | POLEN CAPITAL MANAGEMENT LLC | $391.0M | 696K | ▼−28% Reduced · −265K sh | Q1 2026 | |
| 17 | FRANKLIN RESOURCES INC | $372.3M | 663K | ▲+5.7% Added · +35K sh | Q1 2026 | |
| 18 | Legal & General Group Plc | $365.7M | 651K | ▼−3.0% Reduced · −20K sh | Q1 2026 | |
| 19 | PRICE T ROWE ASSOCIATES INC /MD/ | $358.5M | 638K | ▼−33% Reduced · −314K sh | Q1 2026 | |
| 20 | Amundi | $343.2M | 611K | ▼−1.3% Reduced · −8K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $342.9M | 610K | ▲+3.4% Added · +20K sh | Q1 2026 | |
| 22 | AMERICAN CENTURY COMPANIES INC | $337.1M | 600K | ▼−4.6% Reduced · −29K sh | Q1 2026 | |
| 23 | DIMENSIONAL FUND ADVISORS LP | $322.1M | 573K | ▲+4.3% Added · +24K sh | Q1 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 1, 2026 | FENNELL GEORGE | Executive Vice President | Option exercise (M) | 639 | — |
| Jun 1, 2026 | FENNELL GEORGE | Executive Vice President | Tax withholding (F) | 284 | $161K |
| Jun 1, 2026 | FENNELL GEORGE | Executive Vice President | Option exercise (M) | 639 | $0 |
| May 12, 2026 | Vandebroek Sophie V. | Director | Grant (A) | 234 | $0 |
| May 12, 2026 | Vandebroek Sophie V. | Director | Grant (A) | 525 | $0 |
| May 12, 2026 | HOOLEY JOSEPH L | Director | Grant (A) | 234 | $0 |
| May 12, 2026 | ESSIG STUART | Director | Grant (A) | 234 | $0 |
| May 12, 2026 | ESSIG STUART | Director | Grant (A) | 525 | $0 |
| May 12, 2026 | SAMAD SAM | Director | Grant (A) | 234 | $0 |
| May 12, 2026 | SAMAD SAM | Director | Grant (A) | 525 | $0 |
| May 12, 2026 | Peacock Karen | Director | Grant (A) | 234 | $0 |
| May 12, 2026 | Peacock Karen | Director | Grant (A) | 525 | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 417 funds | $305.3B |
| AMAZON.COM INCAMZN | 413 funds | $228.1B |
| APPLE INCAAPL | 412 funds | $326.0B |
| META PLATFORMS INC-CLASS AMETA | 410 funds | $123.5B |
| NVIDIA CORPNVDA | 409 funds | $412.7B |
| ALPHABET INC-CL AGOOGL | 409 funds | $200.3B |
| VISA INC-CLASS A SHARESV | 406 funds | $70.3B |
| MASTERCARD INC - AMA | 403 funds | $62.5B |
| ELI LILLY & COLLY | 402 funds | $84.0B |
| BROADCOM INCAVGO | 401 funds | $163.8B |
| COSTCO WHOLESALE CORPCOST | 397 funds | $48.3B |
| ALPHABET INC-CL CGOOG | 394 funds | $132.6B |
Ranked by how many of IDXX's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
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. Every panel above is one call to the Arkolith API & MCP server.