The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query ACH owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ACH"
Use Arkolith to show who owns ACH, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $17.7M | 6.3M | ▲+6.0% Added · +355K sh | Q4 2025 | |
| 2 | BlackRock, Inc. | $11.9M | 5.2M | ▼−3.3% Reduced · −177K sh | Q1 2026 | |
| 3 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $8.3M | 3.6M | ▼−10% Reduced · −422K sh | Q1 2026 | |
| 4 | BANK OF AMERICA CORP /DE/ | $7.8M | 3.4M | ▲+107% Added · +1.8M sh | Q1 2026 | |
| 5 | Invenomic Capital Management LP | $7.7M | 3.4M | ▼−3.8% Reduced · −133K sh | Q1 2026 | |
| 6 | D. E. Shaw & Co., Inc. | $7.6M | 3.3M | ▼−6.9% Reduced · −247K sh | Q1 2026 | |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | $7.5M | 3.3M | ▲New +3.3M sh | Q1 2026 | |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | $6.0M | 2.7M | ▲New +2.7M sh | Q1 2026 | |
| 9 | DIMENSIONAL FUND ADVISORS LP | $5.9M | 2.6M | ▼−13% Reduced · −404K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $4.2M | 1.8M | ▲+3.7% Added · +66K sh | Q1 2026 | |
| 11 | PARADIGM CAPITAL MANAGEMENT INC/NY | $4.1M | 1.8M | ▲+5.9% Added · +100K sh | Q1 2026 | |
| 12 | MARSHALL WACE, LLP | $4.0M | 1.8M | ▲+230% Added · +1.2M sh | Q1 2026 | |
| 13 | STATE STREET CORP | $3.7M | 1.6M | ▲+1.8% Added · +28K sh | Q1 2026 | |
| 14 | Dana Investment Advisors, Inc. | $3.4M | 1.5M | ▼−0.2% Reduced · −3K sh | Q1 2026 | |
| 15 | Connor, Clark & Lunn Investment Management Ltd. | $3.1M | 1.4M | ▲+7.8% Added · +99K sh | Q1 2026 | |
| 16 | TWO SIGMA INVESTMENTS, LP | $2.7M | 1.2M | ▲+1.6% Added · +20K sh | Q1 2026 | |
| 17 | GOLDMAN SACHS GROUP INC | $2.1M | 941K | ▲+41% Added · +275K sh | Q1 2026 | |
| 18 | AQR CAPITAL MANAGEMENT LLC | $1.7M | 732K | ▲+53% Added · +253K sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $1.4M | 601K | ▲+3.5% Added · +20K sh | Q1 2026 | |
| 20 | MILLENNIUM MANAGEMENT LLC | $1.1M | 475K | ▼−82% Reduced · −2.2M sh | Q1 2026 | |
| 21 | VANGUARD FIDUCIARY TRUST CO | $1.1M | 468K | ▲New +468K sh | Q1 2026 | |
| 22 | MORGAN STANLEY | $968K | 425K | ▼−44% Reduced · −338K sh | Q1 2026 | |
| 23 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $821K | 360K | ▲10× Added · +324K sh | Q1 2026 | |
| 24 | RENAISSANCE TECHNOLOGIES LLC | $725K | 318K | ▼−22% Reduced · −90K sh | Q1 2026 | |
| 25 | UBS Group AG | $704K | 309K | ▼−63% Reduced · −520K 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 |
|---|---|---|---|---|---|
| Mar 20, 2026 | Galloway Heath H | EVP,General Counsel & CorpSecy | Tax withholding (F) | 9K | $19K |
| Mar 20, 2026 | Bernocchi Perry A | EVP, Chief Operating Officer | Tax withholding (F) | 21K | $42K |
| Mar 20, 2026 | Leon Jonathan A | EVP & CFO | Tax withholding (F) | 11K | $23K |
| Mar 20, 2026 | Pesicka Edward A | President & CEO, Director | Tax withholding (F) | 59K | $120K |
| Mar 9, 2026 | Leon Jonathan A | EVP & CFO | Grant (A) | 85K | $0 |
| Mar 9, 2026 | Bernocchi Perry A | EVP, Chief Operating Officer | Grant (A) | 109K | $0 |
| Mar 9, 2026 | Galloway Heath H | EVP,General Counsel & CorpSecy | Grant (A) | 61K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 48 funds | $16.8B |
| AMAZON.COM INCAMZN | 48 funds | $14.4B |
| ALPHABET INC-CL AGOOGL | 48 funds | $11.5B |
| BROADCOM INCAVGO | 48 funds | $9.7B |
| META PLATFORMS INC-CLASS AMETA | 48 funds | $8.5B |
| ELI LILLY & COLLY | 48 funds | $4.7B |
| VISA INC-CLASS A SHARESV | 48 funds | $3.9B |
| COSTCO WHOLESALE CORPCOST | 48 funds | $3.7B |
| BANK OF AMERICA CORPBAC | 48 funds | $2.2B |
| PALANTIR TECHNOLOGIES INC-APLTR | 48 funds | $2.1B |
| UNITEDHEALTH GROUP INCUNH | 48 funds | $1.9B |
| NVIDIA CORPNVDA | 47 funds | $24.7B |
Ranked by how many of ACH'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 ACH. 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.