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 MRVI 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/MRVI"
Use Arkolith to show who owns MRVI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | GTCR LLC | $57.0M | 20.2M | —Held | Q1 2026 | |
| 2 | BRAIDWELL LP | $29.0M | 10.2M | ▲+23% Added · +1.9M sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $26.4M | 9.3M | ▼−0.3% Reduced · −33K sh | Q1 2026 | |
| 4 | VANGUARD GROUP INC | $23.3M | 7.2M | ▲+0.6% Added · +41K sh | Q4 2025 | |
| 5 | 12 West Capital Management LP | $20.5M | 7.3M | ▼−19% Reduced · −1.7M sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $15.4M | 5.4M | ▲New +5.4M sh | Q1 2026 | |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $12.1M | 4.3M | ▲+0.9% Added · +40K sh | Q1 2026 | |
| 8 | MORGAN STANLEY | $9.4M | 3.3M | ▼−3.7% Reduced · −127K sh | Q1 2026 | |
| 9 | Point72 Asset Management, L.P. | $9.1M | 3.2M | ▲+13% Added · +358K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $8.0M | 2.8M | ▼−0.7% Reduced · −20K sh | Q1 2026 | |
| 11 | Philosophy Capital Management LLC | $7.5M | 2.6M | ▼−15% Reduced · −463K sh | Q1 2026 | |
| 12 | First Eagle Investment Management, LLC | $7.1M | 2.5M | ▲+40% Added · +725K sh | Q1 2026 | |
| 13 | STATE STREET CORP | $6.9M | 2.4M | ▲+0.6% Added · +14K sh | Q1 2026 | |
| 14 | MARSHALL WACE, LLP | $5.9M | 2.1M | ▲+4.0% Added · +81K sh | Q1 2026 | |
| 15 | GOLDMAN SACHS GROUP INC | $5.7M | 2.0M | ▲+0.3% Added · +6K sh | Q1 2026 | |
| 16 | MILLENNIUM MANAGEMENT LLC | $4.7M | 1.6M | ▼−8.2% Reduced · −148K sh | Q1 2026 | |
| 17 | JANE STREET GROUP, LLC | $4.6M | 1.6M | ▲+26% Added · +341K sh | Q1 2026 | |
| 18 | TWO SIGMA INVESTMENTS, LP | $4.5M | 1.6M | ▲+87% Added · +734K sh | Q1 2026 | |
| 19 | SYSTEMATIC FINANCIAL MANAGEMENT LP | $4.2M | 1.5M | ▼−2.4% Reduced · −36K sh | Q1 2026 | |
| 20 | CITADEL ADVISORS LLC | $4.2M | 1.5M | ▲+140% Added · +867K sh | Q1 2026 | |
| 21 | DIMENSIONAL FUND ADVISORS LP | $4.0M | 1.4M | ▲+65% Added · +558K sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $3.1M | 1.1M | ▲+26% Added · +230K sh | Q1 2026 | |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.8M | 993K | ▲+0.5% Added · +5K sh | Q1 2026 | |
| 24 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.7M | 953K | ▲New +953K sh | Q1 2026 | |
| 25 | First Pacific Advisors, LP | $2.5M | 885K | —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 10, 2026 | ORESHACK KURT | General Counsel | Sell (S) | 25K | $128K |
| Jun 9, 2026 | LUCIER GREGORY T | Director | Gift (G) | 46K | $0 |
| Jun 9, 2026 | ORESHACK KURT | General Counsel | Sell (S) | 25K | $127K |
| Jun 9, 2026 | LUCIER GREGORY T | Director | Gift (G) | 46K | $0 |
| Jun 8, 2026 | Brust Bernd | Chief Executive Officer, Director | Tax withholding (F) | 351K | $1.8M |
| Mar 16, 2026 | Dolan Christine | See Remarks | Tax withholding (F) | 29K | $88K |
| Mar 16, 2026 | ORESHACK KURT | General Counsel | Tax withholding (F) | 40K | $123K |
| Jan 15, 2026 | Dolan Christine | See Remarks | Tax withholding (F) | 29K | $107K |
| Jan 15, 2026 | ORESHACK KURT | General Counsel | Tax withholding (F) | 32K | $118K |
| Dec 8, 2025 | LUCIER GREGORY T | Director | Buy (P) | 49K | $178K |
| Dec 5, 2025 | LUCIER GREGORY T | Director | Buy (P) | 51K | $190K |
| Nov 14, 2025 | Dolan Christine | See Remarks | Grant (A) | 4K | $8K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 38 funds | $15.5B |
| CENTENE CORPCNC | 38 funds | $412.1M |
| META PLATFORMS INC-CLASS AMETA | 37 funds | $9.9B |
| LAM RESEARCH CORPLRCX | 37 funds | $1.7B |
| AMAZON.COM INCAMZN | 36 funds | $12.0B |
| ALPHABET INC-CL CGOOG | 36 funds | $10.2B |
| ALPHABET INC-CL AGOOGL | 36 funds | $10.1B |
| ELI LILLY & COLLY | 36 funds | $3.5B |
| CHEVRON CORPCVX | 36 funds | $2.2B |
| ELEVANCE HEALTH INCELV | 36 funds | $2.0B |
| ROSS STORES INCROST | 36 funds | $1.1B |
| DANAHER CORPDHR | 36 funds | $824.4M |
Ranked by how many of MRVI'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 MRVI. 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.