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/MIRM/capital-change-brief"
Use Arkolith's capital_change_brief for MIRM. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Frazier Life Sciences Management, L.P. | $709.4M | 7.7M | ▲+13% Added · +885K sh | Q1 2026 | |
| 2 | JANUS HENDERSON GROUP PLC | $641.8M | 6.9M | ▲+15% Added · +881K sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $355.3M | 3.8M | ▲+5.5% Added · +201K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $223.1M | 2.4M | ▲New +2.4M sh | Q1 2026 | |
| 5 | FMR LLC | $181.6M | 2.0M | ▲+204% Added · +1.3M sh | Q1 2026 | |
| 6 | STATE STREET CORP | $179.6M | 1.9M | ▼−9.3% Reduced · −200K sh | Q1 2026 | |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $158.7M | 1.7M | ▲+21% Added · +297K sh | Q1 2026 | |
| 8 | BVF INC/IL | $146.4M | 1.6M | ▲+6.0% Added · +89K sh | Q1 2026 | |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | $132.3M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 10 | EVENTIDE ASSET MANAGEMENT, LLC | $130.1M | 1.4M | ▼−33% Reduced · −685K sh | Q1 2026 | |
| 11 | Novo Holdings A/S | $122.4M | 1.3M | ▲+4.8% Added · +61K sh | Q1 2026 | |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $116.4M | 1.3M | ▲+19% Added · +197K sh | Q1 2026 | |
| 13 | TANG CAPITAL MANAGEMENT LLC | $114.2M | 1.2M | —Held | Q1 2026 | |
| 14 | TCG Crossover Management, LLC | $98.1M | 1.1M | ▲17× Added · +1.0M sh | Q1 2026 | |
| 15 | CITADEL ADVISORS LLC | $97.2M | 1.1M | ▲+25% Added · +212K sh | Q1 2026 | |
| 16 | BNP PARIBAS FINANCIAL MARKETS | $84.2M | 911K | ▲+39% Added · +256K sh | Q1 2026 | |
| 17 | Rock Springs Capital Management LP | $74.9M | 811K | ▲+6.4% Added · +49K sh | Q1 2026 | |
| 18 | TWO SIGMA INVESTMENTS, LP | $71.6M | 775K | ▲+99% Added · +386K sh | Q1 2026 | |
| 19 | BANK OF AMERICA CORP /DE/ | $66.7M | 722K | ▲+1.2% Added · +9K sh | Q1 2026 | |
| 20 | FRANKLIN RESOURCES INC | $66.0M | 715K | ▲+9.8% Added · +64K sh | Q1 2026 | |
| 21 | Clearbridge Investments, LLC | $62.1M | 672K | ▼−22% Reduced · −194K sh | Q1 2026 | |
| 22 | GOLDMAN SACHS GROUP INC | $61.2M | 662K | ▼−8.6% Reduced · −62K sh | Q1 2026 | |
| 23 | Paradigm Biocapital Advisors LP | $57.7M | 625K | ▲New +625K sh | Q1 2026 | |
| 24 | Bank of New York Mellon Corp | $54.0M | 585K | ▲+3.3% Added · +19K sh | Q1 2026 | |
| 25 | RENAISSANCE TECHNOLOGIES LLC | $53.8M | 582K | ▲+33% Added · +143K 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 |
|---|---|---|---|---|---|
| Jul 6, 2026 | BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | Sell (S) | 3K | $380K |
| Jul 6, 2026 | BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | Sell (S) | 1K | $128K |
| Jul 6, 2026 | BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | Sell (S) | 528 | $65K |
| Jul 6, 2026 | BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | Sell (S) | 300 | $37K |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER, Director | Option exercise (M) | 20K | $59K |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER, Director | Sell (S) | 12K | $1.5M |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER, Director | Sell (S) | 4K | $512K |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER, Director | Sell (S) | 2K | $244K |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER, Director | Sell (S) | 2K | $213K |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER, Director | Option exercise (M) | 20K | $0 |
| Jul 1, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Sell (S) | 3K | $327K |
| Jun 17, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Sell (S) | 3K | $264K |
| Company | Co-held by | Combined value |
|---|---|---|
| ELI LILLY & COLLY | 103 funds | $13.3B |
| BOSTON SCIENTIFIC CORPBSX | 102 funds | $2.9B |
| NVIDIA CORPNVDA | 100 funds | $69.8B |
| MICROSOFT CORPMSFT | 100 funds | $46.9B |
| AMAZON.COM INCAMZN | 99 funds | $34.9B |
| ALPHABET INC-CL AGOOGL | 99 funds | $31.9B |
| META PLATFORMS INC-CLASS AMETA | 99 funds | $21.8B |
| INTUITIVE SURGICAL INCISRG | 99 funds | $4.3B |
| BROADCOM INCAVGO | 98 funds | $27.1B |
| APPLE INCAAPL | 97 funds | $52.4B |
| ADVANCED MICRO DEVICESAMD | 97 funds | $7.3B |
| SERVICENOW INCNOW | 97 funds | $4.4B |
Ranked by how many of MIRM'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 MIRM. 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.