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 RNAC 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/RNAC"
Use Arkolith to show who owns RNAC, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $4.9M | 800K | ▼−41% Reduced · −567K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $3.9M | 541K | ▲+3.9% Added · +21K sh | Q4 2025 | |
| 3 | BlackRock, Inc. | $3.7M | 599K | ▼−1.7% Reduced · −11K sh | Q1 2026 | |
| 4 | 683 Capital Management, LLC | $2.0M | 330K | ▲+18% Added · +50K sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $1.6M | 264K | ▲+3.2% Added · +8K sh | Q1 2026 | |
| 6 | Erste Asset Management GmbH | $1.3M | 222K | ▼−18% Reduced · −50K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $1.2M | 200K | ▲+0.7% Added · +1K sh | Q1 2026 | |
| 8 | CITADEL ADVISORS LLC | $677K | 110K | ▲+38% Added · +30K sh | Q1 2026 | |
| 9 | JACOBS LEVY EQUITY MANAGEMENT, INC | $624K | 102K | ▲+6.0% Added · +6K sh | Q1 2026 | |
| 10 | VANGUARD FIDUCIARY TRUST CO | $432K | 70K | ▲New +70K sh | Q1 2026 | |
| 11 | VANGUARD PORTFOLIO MANAGEMENT LLC | $373K | 61K | ▲New +61K sh | Q1 2026 | |
| 12 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $154K | 25K | —Held | Q1 2026 | |
| 13 | Man Group plc | $146K | 24K | ▲New +24K sh | Q1 2026 | |
| 14 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $80K | 13K | ▼−16% Reduced · −3K sh | Q1 2026 | |
| 15 | CWM, LLC | $29K | 5K | ▲24× Added · +4K sh | Q1 2026 | |
| 16 | Police & Firemen's Retirement System of New Jersey | $18K | 3K | —Held | Q1 2026 | |
| 17 | ALERUS FINANCIAL NA | $6K | 1K | —Held | Q1 2026 | |
| 18 | GAMMA Investing LLC | $5K | 812 | ▲New +812 sh | Q1 2026 | |
| 19 | Ameritas Investment Partners, Inc. | $4K | 708 | —Held | Q1 2026 | |
| 20 | Sterling Capital Management LLC | $2K | 313 | ▼−51% Reduced · −331 sh | Q1 2026 | |
| 21 | IFP Advisors, Inc | $381 | 62 | ▲New +62 sh | Q1 2026 | |
| 22 | SBI Securities Co., Ltd. | $301 | 49 | —Held | Q1 2026 | |
| 23 | ROTHSCHILD INVESTMENT LLC | $246 | 40 | ▲New +40 sh | Q1 2026 | |
| 24 | MAI Capital Management | $148 | 24 | ▲New +24 sh | Q1 2026 | |
| 25 | Arax Advisory Partners | $117 | 19 | ▲New +19 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 13, 2026 | Singer Michael | Director | Gift (G) | 7K | $0 |
| Jan 6, 2026 | Brunn Carsten | President and CEO, Director | Sell (S) | 24K | $162K |
| Jan 6, 2026 | Davis Blaine | Chief Financial Officer | Sell (S) | 11K | $72K |
| Jan 6, 2026 | Miljkovic Milos | Chief Medical Officer | Sell (S) | 4K | $24K |
| Jan 2, 2026 | Kalayoglu Murat | Director, 10% Owner | Grant (A) | 8K | $0 |
| Jan 2, 2026 | Singer Michael | Director | Grant (A) | 8K | $0 |
| Jan 2, 2026 | Kalayoglu Murat | Director, 10% Owner | Grant (A) | 3K | $0 |
| Jan 2, 2026 | English Emily | Chief Operations Officer | Grant (A) | 24K | $0 |
| Jan 2, 2026 | English Emily | Chief Operations Officer | Grant (A) | 71K | $0 |
| Jan 2, 2026 | BARABE TIMOTHY C | Director | Grant (A) | 3K | $0 |
| Jan 2, 2026 | BARABE TIMOTHY C | Director | Grant (A) | 8K | $0 |
| Jan 2, 2026 | Davis Blaine | Chief Financial Officer | Grant (A) | 37K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 21 funds | $6.2B |
| ELI LILLY & COLLY | 21 funds | $1.7B |
| NVIDIA CORPNVDA | 20 funds | $12.9B |
| MICROSOFT CORPMSFT | 20 funds | $6.4B |
| ALPHABET INC-CL AGOOGL | 20 funds | $4.3B |
| ALPHABET INC-CL CGOOG | 20 funds | $3.9B |
| META PLATFORMS INC-CLASS AMETA | 20 funds | $3.9B |
| COSTCO WHOLESALE CORPCOST | 20 funds | $1.8B |
| MASTERCARD INC - AMA | 20 funds | $1.6B |
| BOOKING HOLDINGS INCBKNG | 20 funds | $1.2B |
| CHEVRON CORPCVX | 20 funds | $1.2B |
| EXXON MOBIL CORPXOM | 20 funds | $1.2B |
Ranked by how many of RNAC'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 RNAC. 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.