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/MIR/capital-change-brief"
Use Arkolith's capital_change_brief for MIR. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $703.8M | 37.9M | ▼−0.9% Reduced · −342K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $332.9M | 17.9M | ▲New +17.9M sh | Q1 2026 | |
| 3 | T. Rowe Price Investment Management, Inc. | Withheld | 14.6M | ▼−3.2% Reduced · −485K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $195.3M | 10.5M | ▲New +10.5M sh | Q1 2026 | |
| 5 | STATE STREET CORP | $175.3M | 9.4M | ▲+2.5% Added · +231K sh | Q1 2026 | |
| 6 | COOPERMAN LEON G | $155.8M | 8.4M | —Held | Q1 2026 | |
| 7 | GOLDMAN SACHS GROUP INC | $136.6M | 7.3M | ▲+40% Added · +2.1M sh | Q1 2026 | |
| 8 | FMR LLC | $121.8M | 6.6M | ▼−22% Reduced · −1.9M sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $110.4M | 5.9M | ▲+2.6% Added · +154K sh | Q1 2026 | |
| 10 | MILLENNIUM MANAGEMENT LLC | $94.9M | 5.1M | ▲New +5.1M sh | Q1 2026 | |
| 11 | DIMENSIONAL FUND ADVISORS LP | $87.2M | 4.7M | ▲+14% Added · +592K sh | Q1 2026 | |
| 12 | Bank of New York Mellon Corp | $84.3M | 4.5M | ▲+47% Added · +1.5M sh | Q1 2026 | |
| 13 | JANUS HENDERSON GROUP PLC | $75.2M | 4.0M | ▼−12% Reduced · −554K sh | Q1 2026 | |
| 14 | UBS Group AG | $70.0M | 3.8M | ▼−22% Reduced · −1.1M sh | Q1 2026 | |
| 15 | Swedbank AB | $58.7M | 3.2M | ▼−7.0% Reduced · −238K sh | Q1 2026 | |
| 16 | AMERICAN CENTURY COMPANIES INC | $50.8M | 2.7M | ▲+6.9% Added · +176K sh | Q1 2026 | |
| 17 | Alyeska Investment Group, L.P. | $50.2M | 2.7M | ▲+76% Added · +1.2M sh | Q1 2026 | |
| 18 | LOOMIS SAYLES & CO L P | $49.6M | 2.7M | ▼−6.2% Reduced · −175K sh | Q1 2026 | |
| 19 | MAVERICK CAPITAL LTD | $49.3M | 2.6M | ▲New +2.6M sh | Q1 2026 | |
| 20 | JPMORGAN CHASE & CO | $45.4M | 2.6M | ▲+57% Added · +949K sh | Q1 2026 | |
| 21 | Two Creeks Capital Management, LP | $45.5M | 2.4M | ▼−16% Reduced · −475K sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $44.0M | 2.4M | ▲+1.5% Added · +35K sh | Q1 2026 | |
| 23 | MORGAN STANLEY | $42.5M | 2.3M | ▲+9.0% Added · +188K sh | Q1 2026 | |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $42.3M | 2.3M | ▼−2.9% Reduced · −67K sh | Q1 2026 | |
| 25 | TCW GROUP INC | $41.6M | 2.2M | ▼−8.7% Reduced · −214K 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 |
|---|---|---|---|---|---|
| Jun 30, 2026 | Kingsley Lawrence D | Director | Grant (A) | 1K | $19K |
| May 13, 2026 | Rege Sheila | Director | Grant (A) | 7K | $0 |
| May 13, 2026 | Markopoulos Jody | Director | Grant (A) | 7K | $0 |
| May 13, 2026 | KUO JOHN W | Director | Grant (A) | 7K | $0 |
| May 13, 2026 | Kingsley Lawrence D | Director | Grant (A) | 7K | $0 |
| May 13, 2026 | Etzel Steven W. | Director | Grant (A) | 7K | $0 |
| May 13, 2026 | CASCELLA ROBERT | Director | Grant (A) | 7K | $0 |
| May 13, 2026 | Bockhorst Kenneth | Director | Grant (A) | 7K | $0 |
| May 7, 2026 | Moore Christopher A. | Chief Accounting Officer (PAO) | Sell (S) | 8K | $165K |
| May 6, 2026 | Logan Thomas D | Chief Executive Officer, Director | Gift (G) | 312K | $0 |
| Apr 1, 2026 | Schopfer Brian | Chief Financial Officer | Tax withholding (F) | 7K | $137K |
| Apr 1, 2026 | Moore Christopher A. | Chief Accounting Officer (PAO) | Tax withholding (F) | 2K | $35K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 128 funds | $88.2B |
| MICROSOFT CORPMSFT | 127 funds | $59.8B |
| AMAZON.COM INCAMZN | 120 funds | $50.1B |
| BROADCOM INCAVGO | 120 funds | $32.1B |
| ALPHABET INC-CL AGOOGL | 119 funds | $39.1B |
| SERVICENOW INCNOW | 117 funds | $4.2B |
| META PLATFORMS INC-CLASS AMETA | 116 funds | $27.5B |
| ELI LILLY & COLLY | 116 funds | $15.5B |
| VISA INC-CLASS A SHARESV | 116 funds | $13.0B |
| APPLE INCAAPL | 115 funds | $68.4B |
| MASTERCARD INC - AMA | 115 funds | $10.4B |
| NETFLIX INCNFLX | 114 funds | $9.2B |
Ranked by how many of MIR'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 MIR. 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.