135 tracked 13F filers disclose a position in MRVI as of the latest SEC 13F filings, a combined $318.6M in reported value. 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.
| # | 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 | 12 West Capital Management LP | $20.5M | 7.3M | ▼−19% Reduced · −1.7M sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $15.4M | 5.4M | →First observed position No prior filed position | Q1 2026 | |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $12.1M | 4.3M | ▲+0.9% Added · +40K sh | Q1 2026 | |
| 7 | First Eagle Investment Management, LLC | $22.9M | 3.7M | ▲+45% Added · +1.1M sh | Q2 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 | STATE STREET CORP | $6.9M | 2.4M | ▲+0.6% Added · +14K sh | Q1 2026 | |
| 13 | MARSHALL WACE, LLP | $5.9M | 2.1M | ▲+4.0% Added · +81K sh | Q1 2026 | |
| 14 | GOLDMAN SACHS GROUP INC | $5.7M | 2.0M | ▲+0.3% Added · +6K sh | Q1 2026 | |
| 15 | GENERAL AMERICAN INVESTORS CO INC | $10.7M | 1.7M | —Held | Q2 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 | T. Rowe Price Investment Management, Inc. | Withheld | 1.0M | ▼−84% Reduced · −5.3M sh | Q1 2026 | |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.8M | 993K | ▲+0.5% Added · +5K sh | Q1 2026 | |
| 25 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.7M | 953K | →First observed position No prior filed position | 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.
Last quarter, 9 funds opened a new position in MRVI and 13 added to an existing one, while 23 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 60 funds | $126.6B |
| META PLATFORMS INC-CLASS AMETA | 59 funds | $57.7B |
| APPLE INCAAPL | 56 funds | $141.2B |
| AMAZON.COM INCAMZN | 56 funds | $92.4B |
| ALPHABET INC-CL AGOOGL | 56 funds | $72.7B |
| ALPHABET INC-CL CGOOG | 56 funds | $65.2B |
| NVIDIA CORPNVDA | 55 funds | $184.1B |
| COSTCO WHOLESALE CORPCOST | 55 funds | $17.2B |
| MICRON TECHNOLOGY INCMU | 55 funds | $14.7B |
| BROADCOM INCAVGO | 54 funds | $75.8B |
| CHEVRON CORPCVX | 54 funds | $15.9B |
| ELI LILLY & COLLY | 53 funds | $37.6B |
Ranked by how many of MRVI's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 10, 2026 | ORESHACK KURT | General Counsel | Sell (S) | 25K | $128K |
| Jun 9, 2026 | ORESHACK KURT | General Counsel | Sell (S) | 25K | $127K |
| Dec 8, 2025 | LUCIER GREGORY T | Director | Buy (P) | 49K | $178K |
| Dec 5, 2025 | LUCIER GREGORY T | Director | Buy (P) | 51K | $190K |
| Nov 13, 2025 | Brust Bernd | Chief Executive Officer, Director | Buy (P) | 216K | $703K |
| Nov 12, 2025 | Brust Bernd | Chief Executive Officer, Director | Buy (P) | 93K | $300K |
| Nov 11, 2025 | Brust Bernd | Chief Executive Officer, Director | Buy (P) | 157K | $509K |
| Jan 31, 2025 | ORESHACK KURT | General Counsel | Sell (S) | 25K | $126K |
| Nov 12, 2024 | DeFord John A | Director | Buy (P) | 18K | $101K |
| Nov 11, 2024 | HULL CARL | See Remarks, Director | Buy (P) | 175K | $987K |
| May 28, 2024 | MARAVAI LIFE SCIENCES HOLDINGS, LLC | Director, 10% Owner | Sell (S) | 9.9M | $97.6M |
| Nov 25, 2020 | HULL CARL | Chief Executive Officer, Director | Buy (P) | 35K | $943K |
Connected entities for MRVI
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MRVI/capital-change-brief"
Use Arkolith's capital_change_brief for MRVI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
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.