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 PII 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/PII"
Use Arkolith to show who owns PII, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $384.5M | 7.1M | ▲+2.2% Added · +152K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $351.4M | 5.6M | ▲+0.1% Added · +5K sh | Q4 2025 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $151.9M | 2.8M | ▲New +2.8M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $140.1M | 2.6M | ▼−9.0% Reduced · −255K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $131.3M | 2.4M | ▲New +2.4M sh | Q1 2026 | |
| 6 | AQR CAPITAL MANAGEMENT LLC | $118.6M | 2.2M | ▼−1.1% Reduced · −24K sh | Q1 2026 | |
| 7 | AMERICAN CENTURY COMPANIES INC | $107.5M | 2.0M | ▲+10% Added · +187K sh | Q1 2026 | |
| 8 | GOLDMAN SACHS GROUP INC | $105.0M | 1.9M | ▼−0.1% Reduced · −2K sh | Q1 2026 | |
| 9 | MORGAN STANLEY | $94.6M | 1.7M | ▼−6.8% Reduced · −126K sh | Q1 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $84.3M | 1.5M | ▲+7.4% Added · +107K sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $76.8M | 1.4M | ▲+6.2% Added · +82K sh | Q1 2026 | |
| 12 | CANADA PENSION PLAN INVESTMENT BOARD | $65.4M | 1.2M | ▲+40% Added · +343K sh | Q1 2026 | |
| 13 | UBS Group AG | $56.7M | 1.0M | ▼−45% Reduced · −841K sh | Q1 2026 | |
| 14 | Auto-Owners Insurance Co | $56.4M | 1.0M | —Held | Q1 2026 | |
| 15 | AMERIPRISE FINANCIAL INC | $48.5M | 890K | ▲+14% Added · +113K sh | Q1 2026 | |
| 16 | CITADEL ADVISORS LLC | $46.1M | 847K | ▲14× Added · +786K sh | Q1 2026 | |
| 17 | MILLENNIUM MANAGEMENT LLC | $38.6M | 708K | ▲+160% Added · +435K sh | Q1 2026 | |
| 18 | Gotham Asset Management, LLC | $38.5M | 706K | ▼~0% Reduced · −347 sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $37.3M | 684K | ▲+2.9% Added · +19K sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $36.7M | 673K | ▲+0.6% Added · +4K sh | Q1 2026 | |
| 21 | TWO SIGMA INVESTMENTS, LP | $36.4M | 668K | ▲+159% Added · +411K sh | Q1 2026 | |
| 22 | Bank of New York Mellon Corp | $35.8M | 657K | ▼−1.6% Reduced · −10K sh | Q1 2026 | |
| 23 | JACOBS LEVY EQUITY MANAGEMENT, INC | $35.6M | 653K | ▲+182% Added · +422K sh | Q1 2026 | |
| 24 | Artisan Partners Limited Partnership | $31.9M | 585K | ▼−6.7% Reduced · −42K sh | Q1 2026 | |
| 25 | ProShare Advisors LLC | $26.6M | 489K | ▼−18% Reduced · −105K 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 2, 2026 | Mack Robert Paul | CFO, EVP - Finance + Corp Dev | Option exercise (M) | 23 | — |
| Mar 2, 2026 | Mack Robert Paul | CFO, EVP - Finance + Corp Dev | Option exercise (M) | 23 | — |
| Feb 12, 2026 | Mack Robert Paul | CFO, EVP - Finance + Corp Dev | Sell (S) | 4K | $266K |
| Feb 12, 2026 | Mack Robert Paul | CFO, EVP - Finance + Corp Dev | Sell (S) | 4K | $254K |
| Feb 11, 2026 | Speetzen Michael T | CEO | Sell (S) | 23K | $1.5M |
| Feb 11, 2026 | Speetzen Michael T | CEO | Sell (S) | 12K | $811K |
| Feb 11, 2026 | Duke Benjamin D | President-Marine | Sell (S) | 296 | $20K |
| Feb 11, 2026 | Duke Benjamin D | President-Marine | Sell (S) | 10K | $654K |
| Feb 10, 2026 | Duke Benjamin D | President-Marine | Tax withholding (F) | 3K | $179K |
| Feb 10, 2026 | Speetzen Michael T | CEO | Tax withholding (F) | 10K | $688K |
| Feb 10, 2026 | Mack Robert Paul | CFO, EVP - Finance + Corp Dev | Tax withholding (F) | 7K | $444K |
| Feb 10, 2026 | Winings Matthew S | SVP General Counsel Secretary | Tax withholding (F) | 725 | $49K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 142 funds | $48.0B |
| META PLATFORMS INC-CLASS AMETA | 139 funds | $22.1B |
| COSTCO WHOLESALE CORPCOST | 139 funds | $8.3B |
| AMAZON.COM INCAMZN | 138 funds | $38.6B |
| ELI LILLY & COLLY | 138 funds | $12.7B |
| NVIDIA CORPNVDA | 137 funds | $66.5B |
| APPLE INCAAPL | 136 funds | $58.7B |
| MASTERCARD INC - AMA | 136 funds | $8.4B |
| APPLIED MATERIALS INCAMAT | 136 funds | $5.7B |
| ALPHABET INC-CL AGOOGL | 135 funds | $30.5B |
| BROADCOM INCAVGO | 135 funds | $23.7B |
| JPMORGAN CHASE & COJPM | 135 funds | $16.0B |
Ranked by how many of PII'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 PII. 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.