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 OABI 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/OABI"
Use Arkolith to show who owns OABI, 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. | $12.7M | 8.1M | ▲+0.5% Added · +42K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $10.4M | 5.6M | ▲+9.3% Added · +477K sh | Q4 2025 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $6.3M | 4.0M | ▲New +4.0M sh | Q1 2026 | |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $4.6M | 2.9M | ▲+7.5% Added · +203K sh | Q1 2026 | |
| 5 | RICE HALL JAMES & ASSOCIATES, LLC | $4.0M | 2.5M | ▲+6.1% Added · +146K sh | Q1 2026 | |
| 6 | PRIVATE MANAGEMENT GROUP INC | $3.8M | 2.4M | ▲+0.3% Added · +9K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $3.2M | 2.1M | ▲+0.9% Added · +18K sh | Q1 2026 | |
| 8 | DIMENSIONAL FUND ADVISORS LP | $2.7M | 1.7M | ▼−19% Reduced · −407K sh | Q1 2026 | |
| 9 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.5M | 960K | ▼−0.7% Reduced · −6K sh | Q1 2026 | |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.4M | 904K | ▲New +904K sh | Q1 2026 | |
| 11 | NORTHERN TRUST CORP | $1.4M | 881K | ▲+6.3% Added · +52K sh | Q1 2026 | |
| 12 | VANGUARD FIDUCIARY TRUST CO | $1.1M | 726K | ▲New +726K sh | Q1 2026 | |
| 13 | ADAR1 Capital Management, LLC | $1.1M | 705K | ▲+0.4% Added · +3K sh | Q1 2026 | |
| 14 | Nuveen, LLC | $979K | 624K | ▼−29% Reduced · −251K sh | Q1 2026 | |
| 15 | TWO SIGMA INVESTMENTS, LP | $805K | 513K | ▲+21% Added · +90K sh | Q1 2026 | |
| 16 | GOLDMAN SACHS GROUP INC | $658K | 419K | ▼−22% Reduced · −121K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $640K | 408K | ▲+4.7% Added · +18K sh | Q1 2026 | |
| 18 | MILLENNIUM MANAGEMENT LLC | $630K | 524K | ▼−22% Reduced · −149K sh | Q1 2026 | |
| 19 | D. E. Shaw & Co., Inc. | $597K | 380K | ▼−0.8% Reduced · −3K sh | Q1 2026 | |
| 20 | Bank of New York Mellon Corp | $431K | 274K | ▲+2.2% Added · +6K sh | Q1 2026 | |
| 21 | RENAISSANCE TECHNOLOGIES LLC | $423K | 270K | ▲+11% Added · +27K sh | Q1 2026 | |
| 22 | CITADEL ADVISORS LLC | $359K | 229K | ▼−20% Reduced · −56K sh | Q1 2026 | |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $312K | 199K | —Held | Q1 2026 | |
| 24 | FMR LLC | $298K | 190K | ▼−4.7% Reduced · −9K sh | Q1 2026 | |
| 25 | ALLIANCEBERNSTEIN L.P. | $279K | 151K | —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 |
|---|---|---|---|---|---|
| Jun 17, 2026 | Cochran Jennifer R. | Director | Option exercise (M) | 20K | $0 |
| Jun 17, 2026 | Cochran Jennifer R. | Director | Grant (A) | 20K | $0 |
| Jun 17, 2026 | Cochran Jennifer R. | Director | Grant (A) | 40K | $0 |
| Jun 17, 2026 | Crouse Steven C. | Director | Option exercise (M) | 20K | — |
| Jun 17, 2026 | Crouse Steven C. | Director | Option exercise (M) | 20K | $0 |
| Jun 17, 2026 | Crouse Steven C. | Director | Grant (A) | 20K | $0 |
| Jun 17, 2026 | Crouse Steven C. | Director | Grant (A) | 40K | $0 |
| Jun 17, 2026 | Gotwals Philip J | Director | Option exercise (M) | 20K | — |
| Jun 17, 2026 | Gotwals Philip J | Director | Option exercise (M) | 20K | $0 |
| Jun 17, 2026 | Gotwals Philip J | Director | Grant (A) | 20K | $0 |
| Jun 17, 2026 | Gotwals Philip J | Director | Grant (A) | 40K | $0 |
| Jun 17, 2026 | Cochran Jennifer R. | Director | Option exercise (M) | 20K | — |
| Class | 13F holders | Value held |
|---|---|---|
| OABIthis pagecs | 96 funds | $69.9M |
| OABIWWarrant | 7 funds | $219K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 33 funds | $18.6B |
| MICROSOFT CORPMSFT | 33 funds | $11.4B |
| ELI LILLY & COLLY | 33 funds | $2.5B |
| EXXON MOBIL CORPXOM | 33 funds | $2.1B |
| CHEVRON CORPCVX | 33 funds | $1.9B |
| MERCK & CO. INC.MRK | 33 funds | $1.4B |
| APPLE INCAAPL | 32 funds | $14.5B |
| AMAZON.COM INCAMZN | 32 funds | $10.0B |
| BROADCOM INCAVGO | 32 funds | $6.7B |
| ALPHABET INC-CL CGOOG | 32 funds | $6.6B |
| META PLATFORMS INC-CLASS AMETA | 32 funds | $5.8B |
| JPMORGAN CHASE & COJPM | 32 funds | $3.6B |
Ranked by how many of OABI'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 OABI. 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.