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 OBK 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/OBK"
Use Arkolith to show who owns OBK, 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. | $102.4M | 2.5M | ▼−1.0% Reduced · −26K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $66.0M | 1.8M | ▲+2.1% Added · +37K sh | Q4 2025 | |
| 3 | DIMENSIONAL FUND ADVISORS LP | $59.1M | 1.4M | ▲+3.6% Added · +49K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $55.2M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 5 | SILVERCREST ASSET MANAGEMENT GROUP LLC | $46.9M | 1.1M | ▲+13% Added · +129K sh | Q1 2026 | |
| 6 | STATE STREET CORP | $40.8M | 985K | ▲+6.7% Added · +62K sh | Q1 2026 | |
| 7 | GOLDMAN SACHS GROUP INC | $36.8M | 887K | ▲+11% Added · +89K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $29.6M | 714K | ▲+2.6% Added · +18K sh | Q1 2026 | |
| 9 | KENNEDY CAPITAL MANAGEMENT LLC | $29.1M | 703K | ▼−0.5% Reduced · −3K sh | Q1 2026 | |
| 10 | AMERICAN CENTURY COMPANIES INC | $27.1M | 654K | ▼−1.6% Reduced · −10K sh | Q1 2026 | |
| 11 | BASSWOOD CAPITAL MANAGEMENT, L.L.C. | $16.7M | 404K | ▲+23% Added · +74K sh | Q1 2026 | |
| 12 | Bank of New York Mellon Corp | $15.3M | 369K | ▲+2.4% Added · +9K sh | Q1 2026 | |
| 13 | MILLENNIUM MANAGEMENT LLC | $14.0M | 337K | ▼−30% Reduced · −144K sh | Q1 2026 | |
| 14 | Nuveen, LLC | $13.0M | 313K | ▲+14% Added · +38K sh | Q1 2026 | |
| 15 | JPMORGAN CHASE & CO | $12.0M | 294K | ▲+114% Added · +157K sh | Q1 2026 | |
| 16 | AQR CAPITAL MANAGEMENT LLC | $10.7M | 259K | ▲+64% Added · +101K sh | Q1 2026 | |
| 17 | NORTHERN TRUST CORP | $10.4M | 251K | ▲+5.2% Added · +13K sh | Q1 2026 | |
| 18 | VANGUARD PORTFOLIO MANAGEMENT LLC | $10.0M | 241K | ▲New +241K sh | Q1 2026 | |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $10.0M | 241K | ▼−1.2% Reduced · −3K sh | Q1 2026 | |
| 20 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $9.0M | 217K | ▲+11% Added · +22K sh | Q1 2026 | |
| 21 | TWO SIGMA INVESTMENTS, LP | $9.0M | 216K | ▲+125% Added · +120K sh | Q1 2026 | |
| 22 | Russell Investments Group, Ltd. | $8.8M | 213K | ▲+16% Added · +29K sh | Q1 2026 | |
| 23 | Curi Capital, LLC | $8.3M | 201K | ▲+0.1% Added · +261 sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $7.8M | 188K | ▲New +188K sh | Q1 2026 | |
| 25 | AMERIPRISE FINANCIAL INC | $6.4M | 154K | ▼−16% Reduced · −28K 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 17, 2026 | Mills Drake | Chairman, President and CEO, Director | Option exercise (M) | 26K | — |
| Jun 17, 2026 | Mills Drake | Chairman, President and CEO, Director | Tax withholding (F) | 10K | $504K |
| Jun 17, 2026 | Mills Drake | Chairman, President and CEO, Director | Option exercise (M) | 26K | $0 |
| Feb 24, 2026 | Jones Cecil W. | Director | Small acquisition (L) | 43 | $2K |
| Feb 20, 2026 | McGee Derek | Chief Legal Counsel | Tax withholding (F) | 336 | $15K |
| Feb 20, 2026 | McGee Derek | Chief Legal Counsel | Option exercise (M) | 1K | — |
| Feb 20, 2026 | McGee Derek | Chief Legal Counsel | Option exercise (M) | 1K | $0 |
| Feb 20, 2026 | McGee Derek | Chief Legal Counsel | Grant (A) | 3K | $0 |
| Feb 20, 2026 | Brolly Stephen H | Chief Accounting Officer | Option exercise (M) | 702 | $0 |
| Feb 20, 2026 | Brolly Stephen H | Chief Accounting Officer | Grant (A) | 2K | $0 |
| Feb 20, 2026 | Moore Preston | Chief Credit & Banking Officer | Grant (A) | 2K | $0 |
| Feb 20, 2026 | Wallace Willliam J IV | Chief Financial Officer | Tax withholding (F) | 277 | $12K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 56 funds | $26.0B |
| CHEVRON CORPCVX | 55 funds | $4.0B |
| NVIDIA CORPNVDA | 54 funds | $38.7B |
| META PLATFORMS INC-CLASS AMETA | 54 funds | $11.8B |
| ELI LILLY & COLLY | 54 funds | $6.8B |
| EXXON MOBIL CORPXOM | 54 funds | $5.8B |
| COSTCO WHOLESALE CORPCOST | 54 funds | $4.8B |
| CITIGROUP INCC | 54 funds | $3.9B |
| BANK OF AMERICA CORPBAC | 54 funds | $3.7B |
| WELLS FARGO & COWFC | 54 funds | $2.6B |
| GENERAL MOTORS COGM | 54 funds | $2.3B |
| CONOCOPHILLIPSCOP | 54 funds | $1.9B |
Ranked by how many of OBK'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 OBK. 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.