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 PBYI 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/PBYI"
Use Arkolith to show who owns PBYI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | ACORN CAPITAL ADVISORS, LLC | $26.4M | 4.1M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $23.0M | 3.6M | ▼−1.2% Reduced · −44K sh | Q1 2026 | |
| 3 | VANGUARD GROUP INC | $22.6M | 3.8M | ▲+2.9% Added · +106K sh | Q4 2025 | |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $12.4M | 1.9M | ▼−8.5% Reduced · −181K sh | Q1 2026 | |
| 5 | AMERICAN CENTURY COMPANIES INC | $12.2M | 1.9M | ▲+16% Added · +266K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $11.6M | 1.8M | ▲New +1.8M sh | Q1 2026 | |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | $11.1M | 1.7M | ▲New +1.7M sh | Q1 2026 | |
| 8 | MILLENNIUM MANAGEMENT LLC | $9.4M | 1.5M | ▲89× Added · +1.5M sh | Q1 2026 | |
| 9 | DIMENSIONAL FUND ADVISORS LP | $9.2M | 1.4M | ▲+7.2% Added · +97K sh | Q1 2026 | |
| 10 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $7.3M | 1.1M | ▲+1.6% Added · +18K sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $6.5M | 1.0M | ▲+2.3% Added · +23K sh | Q1 2026 | |
| 12 | STATE STREET CORP | $5.9M | 918K | ▲+4.6% Added · +41K sh | Q1 2026 | |
| 13 | KENNEDY CAPITAL MANAGEMENT LLC | $5.7M | 890K | ▲+2.5% Added · +21K sh | Q1 2026 | |
| 14 | AQR CAPITAL MANAGEMENT LLC | $5.1M | 800K | ▲+20% Added · +134K sh | Q1 2026 | |
| 15 | Connor, Clark & Lunn Investment Management Ltd. | $5.0M | 783K | ▼−11% Reduced · −93K sh | Q1 2026 | |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $5.0M | 775K | ▲+0.2% Added · +2K sh | Q1 2026 | |
| 17 | RITHOLTZ WEALTH MANAGEMENT | $4.9M | 774K | ▲+12% Added · +80K sh | Q1 2026 | |
| 18 | GOLDMAN SACHS GROUP INC | $4.3M | 670K | ▼−16% Reduced · −124K sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $4.1M | 642K | ▲+4.1% Added · +26K sh | Q1 2026 | |
| 20 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.4M | 538K | ▼−1.8% Reduced · −10K sh | Q1 2026 | |
| 21 | UBS Group AG | $3.4M | 534K | ▲+320% Added · +407K sh | Q1 2026 | |
| 22 | SEI INVESTMENTS CO | $3.2M | 508K | ▲+18% Added · +78K sh | Q1 2026 | |
| 23 | MORGAN STANLEY | $2.3M | 360K | ▲+10% Added · +33K sh | Q1 2026 | |
| 24 | D. E. Shaw & Co., Inc. | $2.2M | 351K | ▼−7.2% Reduced · −27K sh | Q1 2026 | |
| 25 | Bank of New York Mellon Corp | $2.2M | 348K | ▼−1.1% Reduced · −4K 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 12, 2026 | WILSON TROY EDWARD | Director | Sell (S) | 11K | $78K |
| Jun 12, 2026 | Senderowicz Adrian | Director | Sell (S) | 27K | $194K |
| Jun 12, 2026 | MOYES JAY M | Director | Sell (S) | 22K | $159K |
| Jun 12, 2026 | Stuglik Brian M | Director | Sell (S) | 8K | $58K |
| Jun 12, 2026 | Dorval Allison | Director | Sell (S) | 12K | $84K |
| Jun 11, 2026 | Stuglik Brian M | Director | Grant (A) | 27K | $0 |
| Jun 11, 2026 | WILSON TROY EDWARD | Director | Grant (A) | 27K | $0 |
| Jun 11, 2026 | Senderowicz Adrian | Director | Grant (A) | 27K | $0 |
| Jun 11, 2026 | Dorval Allison | Director | Grant (A) | 27K | $0 |
| Jun 11, 2026 | MILLER MICHAEL PATRICK | Director | Grant (A) | 27K | $0 |
| Jun 11, 2026 | MOYES JAY M | Director | Grant (A) | 27K | $0 |
| Jun 11, 2026 | Cesano Alessandra | Director | Grant (A) | 27K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 43 funds | $19.6B |
| AMAZON.COM INCAMZN | 43 funds | $15.0B |
| BROADCOM INCAVGO | 43 funds | $10.2B |
| TESLA INCTSLA | 43 funds | $5.8B |
| ELI LILLY & COLLY | 43 funds | $5.1B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 43 funds | $4.7B |
| VISA INC-CLASS A SHARESV | 43 funds | $4.0B |
| COSTCO WHOLESALE CORPCOST | 43 funds | $3.9B |
| LAM RESEARCH CORPLRCX | 43 funds | $2.7B |
| PALANTIR TECHNOLOGIES INC-APLTR | 43 funds | $2.4B |
| ADVANCED MICRO DEVICESAMD | 43 funds | $2.4B |
| UNITEDHEALTH GROUP INCUNH | 43 funds | $2.1B |
Ranked by how many of PBYI'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 PBYI. 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.