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 OBT 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/OBT"
Use Arkolith to show who owns OBT, 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. | $60.5M | 1.9M | ▼−2.6% Reduced · −50K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $16.5M | 578K | ▲+4.9% Added · +27K sh | Q4 2025 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $14.8M | 462K | ▲New +462K sh | Q1 2026 | |
| 4 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | $9.9M | 309K | ▼−1.3% Reduced · −4K sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $8.3M | 260K | ▲+0.7% Added · +2K sh | Q1 2026 | |
| 6 | AMERICAN CENTURY COMPANIES INC | $7.5M | 235K | ▲+41% Added · +69K sh | Q1 2026 | |
| 7 | ALLIANCEBERNSTEIN L.P. | $6.3M | 219K | ▼−10% Reduced · −25K sh | Q1 2026 | |
| 8 | STATE STREET CORP | $6.0M | 187K | ▲+13% Added · +21K sh | Q1 2026 | |
| 9 | DIMENSIONAL FUND ADVISORS LP | $4.1M | 127K | ▲+30% Added · +29K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $3.2M | 101K | ▲+82% Added · +46K sh | Q1 2026 | |
| 11 | NORTHERN TRUST CORP | $2.8M | 89K | ▲+3.4% Added · +3K sh | Q1 2026 | |
| 12 | MARSHALL WACE, LLP | $2.8M | 88K | ▲+62% Added · +34K sh | Q1 2026 | |
| 13 | BROWN BROTHERS HARRIMAN & CO | $2.7M | 84K | —Held | Q1 2026 | |
| 14 | TWO SIGMA INVESTMENTS, LP | $2.5M | 78K | ▲+97% Added · +39K sh | Q1 2026 | |
| 15 | VANGUARD FIDUCIARY TRUST CO | $2.3M | 72K | ▲New +72K sh | Q1 2026 | |
| 16 | GOLDMAN SACHS GROUP INC | $2.3M | 72K | ▲+1.8% Added · +1K sh | Q1 2026 | |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.2M | 68K | ▲New +68K sh | Q1 2026 | |
| 18 | Bank of New York Mellon Corp | $1.6M | 50K | ▼−2.8% Reduced · −1K sh | Q1 2026 | |
| 19 | BANK OF AMERICA CORP /DE/ | $1.5M | 48K | ▲+30% Added · +11K sh | Q1 2026 | |
| 20 | MILLENNIUM MANAGEMENT LLC | $1.5M | 48K | ▲+8.0% Added · +4K sh | Q1 2026 | |
| 21 | HSBC HOLDINGS PLC | $1.5M | 47K | ▼−12% Reduced · −6K sh | Q1 2026 | |
| 22 | AMERIPRISE FINANCIAL INC | $1.4M | 43K | ▲+101% Added · +22K sh | Q1 2026 | |
| 23 | Nuveen, LLC | $1.4M | 42K | ▲+37% Added · +12K sh | Q1 2026 | |
| 24 | FIRST TRUST ADVISORS LP | $1.2M | 38K | ▼−0.9% Reduced · −356 sh | Q1 2026 | |
| 25 | KEYBANK NATIONAL ASSOCIATION/OH | $1.1M | 35K | —Held | 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 19, 2026 | Ruhl Joseph A | Reg Pres, Westchester County | Grant (A) | 5K | $0 |
| Mar 19, 2026 | Jones Elizabeth A | SVP, Chief Operating Officer | Tax withholding (F) | 656 | $20K |
| Mar 19, 2026 | Gilfeather Michael J | President and CEO, Director | Grant (A) | 17K | $0 |
| Mar 19, 2026 | Gilfeather Michael J | President and CEO, Director | Buy (P) | 200 | $6K |
| Mar 19, 2026 | Dineen David P | SVP, Dir. Wealth Services | Grant (A) | 4K | $0 |
| Mar 19, 2026 | Listner Michael | SVP and Chief Risk Officer | Grant (A) | 3K | $0 |
| Mar 19, 2026 | Gilfeather Michael J | President and CEO, Director | Grant (A) | 9K | $0 |
| Mar 19, 2026 | Lesler Michael | EVP, Chief Financial Officer | Tax withholding (F) | 1K | $37K |
| Mar 19, 2026 | Gilfeather Michael J | President and CEO, Director | Tax withholding (F) | 6K | $193K |
| Mar 19, 2026 | Sousa Gregory | EVP and Deputy CLO | Tax withholding (F) | 1K | $41K |
| Mar 19, 2026 | Rooney Stephen | SVP, Chief Credit Officer | Tax withholding (F) | 841 | $26K |
| Mar 19, 2026 | Jones Elizabeth A | SVP, Chief Operating Officer | Grant (A) | 4K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 20 funds | $11.8B |
| APPLE INCAAPL | 20 funds | $9.9B |
| MICROSOFT CORPMSFT | 20 funds | $8.1B |
| AMAZON.COM INCAMZN | 20 funds | $6.8B |
| ALPHABET INC-CL AGOOGL | 20 funds | $5.3B |
| ALPHABET INC-CL CGOOG | 20 funds | $4.8B |
| BROADCOM INCAVGO | 20 funds | $4.1B |
| META PLATFORMS INC-CLASS AMETA | 20 funds | $3.9B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 20 funds | $3.3B |
| JPMORGAN CHASE & COJPM | 20 funds | $3.2B |
| TESLA INCTSLA | 20 funds | $2.7B |
| MICRON TECHNOLOGY INCMU | 20 funds | $2.5B |
Ranked by how many of OBT'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 OBT. 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.