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 OGN 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/OGN"
Use Arkolith to show who owns OGN, 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 | $264.7M | 36.9M | ▲+2.7% Added · +988K sh | Q4 2025 | |
| 2 | BlackRock, Inc. | $190.0M | 31.7M | ▲+2.4% Added · +751K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $130.9M | 21.8M | ▲New +21.8M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $70.3M | 11.7M | ▲New +11.7M sh | Q1 2026 | |
| 5 | STATE STREET CORP | $59.6M | 10.0M | ▲+3.7% Added · +359K sh | Q1 2026 | |
| 6 | MILLENNIUM MANAGEMENT LLC | $40.6M | 6.8M | ▲15× Added · +6.3M sh | Q1 2026 | |
| 7 | CANADA PENSION PLAN INVESTMENT BOARD | $30.0M | 5.0M | ▲+106% Added · +2.6M sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $28.5M | 4.8M | ▲+3.5% Added · +159K sh | Q1 2026 | |
| 9 | PRIVATE MANAGEMENT GROUP INC | $26.2M | 4.4M | ▲+0.6% Added · +27K sh | Q1 2026 | |
| 10 | UBS Group AG | $20.8M | 3.5M | ▼−19% Reduced · −823K sh | Q1 2026 | |
| 11 | AQR CAPITAL MANAGEMENT LLC | $20.2M | 3.5M | ▼−60% Reduced · −5.1M sh | Q1 2026 | |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $20.1M | 3.4M | ▲+16% Added · +456K sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $19.7M | 3.3M | ▲+3.6% Added · +114K sh | Q1 2026 | |
| 14 | DIMENSIONAL FUND ADVISORS LP | $19.6M | 3.3M | ▼−3.5% Reduced · −119K sh | Q1 2026 | |
| 15 | FIRST TRUST ADVISORS LP | $19.3M | 3.2M | ▲+78% Added · +1.4M sh | Q1 2026 | |
| 16 | TWO SIGMA INVESTMENTS, LP | $18.8M | 3.1M | ▲+45% Added · +967K sh | Q1 2026 | |
| 17 | D. E. Shaw & Co., Inc. | $15.8M | 2.6M | ▼−22% Reduced · −742K sh | Q1 2026 | |
| 18 | FMR LLC | $15.3M | 2.6M | ▲72× Added · +2.5M sh | Q1 2026 | |
| 19 | Cerity Partners LLC | $13.8M | 2.3M | ▲+112% Added · +1.2M sh | Q1 2026 | |
| 20 | Bank of New York Mellon Corp | $13.4M | 2.2M | ▼−1.3% Reduced · −29K sh | Q1 2026 | |
| 21 | CITADEL ADVISORS LLC | $12.0M | 2.0M | ▼−3.1% Reduced · −65K sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $11.5M | 1.9M | ▲+5.1% Added · +94K sh | Q1 2026 | |
| 23 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $10.1M | 1.7M | ▼−75% Reduced · −5.2M sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $9.7M | 1.6M | ▲New +1.6M sh | Q1 2026 | |
| 25 | GOLDMAN SACHS GROUP INC | $9.6M | 1.6M | ▼−15% Reduced · −275K 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 29, 2026 | Karp Daniel | Executive VP, Corp. Dev. | Tax withholding (F) | 4K | $26K |
| Mar 29, 2026 | Karp Daniel | Executive VP, Corp. Dev. | Option exercise (M) | 14K | $0 |
| Mar 29, 2026 | Holzbaur Lynette | SVP and Corporate Controller | Tax withholding (F) | 2K | $9K |
| Mar 29, 2026 | Holzbaur Lynette | SVP and Corporate Controller | Option exercise (M) | 5K | $0 |
| Mar 29, 2026 | Holzbaur Lynette | SVP and Corporate Controller | Option exercise (M) | 5K | $0 |
| Mar 29, 2026 | Stahler Rachel A | Chief Information Officer | Tax withholding (F) | 3K | $16K |
| Mar 29, 2026 | Stahler Rachel A | Chief Information Officer | Option exercise (M) | 8K | $0 |
| Mar 29, 2026 | Stahler Rachel A | Chief Information Officer | Option exercise (M) | 8K | $0 |
| Mar 29, 2026 | Morrissey Joseph T. Jr. | Interim CEO | Tax withholding (F) | 3K | $16K |
| Mar 29, 2026 | Morrissey Joseph T. Jr. | Interim CEO | Option exercise (M) | 10K | $0 |
| Mar 29, 2026 | Morrissey Joseph T. Jr. | Interim CEO | Option exercise (M) | 10K | $0 |
| Mar 29, 2026 | WALSH MATTHEW M | Chief Financial Officer | Option exercise (M) | 15K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 160 funds | $62.5B |
| CITIGROUP INCC | 159 funds | $6.4B |
| ALPHABET INC-CL AGOOGL | 157 funds | $41.8B |
| META PLATFORMS INC-CLASS AMETA | 157 funds | $28.5B |
| ELI LILLY & COLLY | 157 funds | $16.7B |
| NVIDIA CORPNVDA | 156 funds | $84.1B |
| APPLE INCAAPL | 156 funds | $73.6B |
| BROADCOM INCAVGO | 156 funds | $31.8B |
| ALPHABET INC-CL CGOOG | 156 funds | $28.0B |
| MICRON TECHNOLOGY INCMU | 156 funds | $11.0B |
| BANK OF AMERICA CORPBAC | 156 funds | $7.5B |
| AMAZON.COM INCAMZN | 155 funds | $45.0B |
Ranked by how many of OGN'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 OGN. 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.