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 MPLT 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/MPLT"
Use Arkolith to show who owns MPLT, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | GOLDMAN SACHS GROUP INC | $40.6M | 2.0M | ▲+3.0% Added · +58K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $27.2M | 1.3M | ▲+22% Added · +244K sh | Q1 2026 | |
| 3 | 5AM Venture Management, LLC | $19.3M | 950K | —Held | Q1 2026 | |
| 4 | VANGUARD GROUP INC | $15.3M | 870K | ▲New +870K sh | Q4 2025 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $14.6M | 720K | ▲New +720K sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $9.8M | 481K | ▲+24% Added · +92K sh | Q1 2026 | |
| 7 | Siren, L.L.C. | $9.1M | 450K | —Held | Q1 2026 | |
| 8 | Vestal Point Capital, LP | $8.5M | 420K | ▲+9.1% Added · +35K sh | Q1 2026 | |
| 9 | ADAR1 Capital Management, LLC | $7.6M | 375K | ▲New +375K sh | Q1 2026 | |
| 10 | BAKER BROS. ADVISORS LP | $7.4M | 365K | —Held | Q1 2026 | |
| 11 | STATE STREET CORP | $6.9M | 339K | ▲+48% Added · +110K sh | Q1 2026 | |
| 12 | Freestone Grove Partners LP | $6.4M | 314K | ▲+71% Added · +130K sh | Q1 2026 | |
| 13 | BNP Paribas Asset Management Holding S.A. | $5.4M | 268K | ▲+81% Added · +120K sh | Q1 2026 | |
| 14 | RA CAPITAL MANAGEMENT, L.P. | $5.0M | 248K | ▲New +248K sh | Q1 2026 | |
| 15 | UBS Group AG | $4.8M | 237K | ▲13× Added · +218K sh | Q1 2026 | |
| 16 | FMR LLC | $4.2M | 205K | ▲226× Added · +204K sh | Q1 2026 | |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $3.3M | 161K | ▲+16% Added · +23K sh | Q1 2026 | |
| 18 | NORTHERN TRUST CORP | $3.0M | 146K | ▲+22% Added · +27K sh | Q1 2026 | |
| 19 | LAZARD ASSET MANAGEMENT LLC | $2.9M | 142K | ▼−32% Reduced · −65K sh | Q1 2026 | |
| 20 | VANGUARD FIDUCIARY TRUST CO | $2.7M | 131K | ▲New +131K sh | Q1 2026 | |
| 21 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.3M | 113K | ▲New +113K sh | Q1 2026 | |
| 22 | STEMPOINT CAPITAL LP | $2.0M | 100K | —Held | Q1 2026 | |
| 23 | JANUS HENDERSON GROUP PLC | $1.1M | 55K | ▲New +55K sh | Q1 2026 | |
| 24 | TD ASSET MANAGEMENT INC | $971K | 48K | ▲+29% Added · +11K sh | Q1 2026 | |
| 25 | Bank of New York Mellon Corp | $802K | 39K | ▲+10% Added · +4K 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 |
|---|---|---|---|---|---|
| Feb 24, 2026 | Malenka Robert C. | Director | Sell (S) | 736 | $13K |
| Feb 23, 2026 | Malenka Robert C. | Director | Sell (S) | 11K | $198K |
| Feb 23, 2026 | Malenka Robert C. | Director | Sell (S) | 476 | $9K |
| Feb 20, 2026 | Malenka Robert C. | Director | Sell (S) | 2K | $40K |
| Feb 20, 2026 | Pavlov George | Director | Buy (P) | 10K | $177K |
| Feb 19, 2026 | Pavlov George | Director | Buy (P) | 4K | $78K |
| Feb 18, 2026 | Pavlov George | Director | Buy (P) | 11K | $186K |
| Feb 13, 2026 | Malenka Robert C. | Director | Sell (S) | 12K | $221K |
| Feb 11, 2026 | Malenka Robert C. | Director | Sell (S) | 241 | $4K |
| Feb 10, 2026 | Malenka Robert C. | Director | Sell (S) | 7K | $120K |
| Feb 10, 2026 | Garnett Timothy John | Director | Buy (P) | 14K | $253K |
| Feb 5, 2026 | GILLIS JONATHAN | CAAO and PAO | Grant (A) | 24K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| DISC MEDICINE INCIRON | 21 funds | $370.2M |
| BOSTON SCIENTIFIC CORPBSX | 20 funds | $708.3M |
| MEDLINE INC-CL AMDLN | 20 funds | $355.3M |
| NVIDIA CORPNVDA | 19 funds | $8.2B |
| MICROSOFT CORPMSFT | 19 funds | $4.6B |
| REVOLUTION MEDICINES INCRVMD | 19 funds | $1.4B |
| EDGEWISE THERAPEUTICS INCEWTX | 19 funds | $1.3B |
| INTUITIVE SURGICAL INCISRG | 19 funds | $1.1B |
| ROIVANT SCIENCES LTDROIV | 19 funds | $461.9M |
| XENON PHARMACEUTICALS INCXENE | 19 funds | $388.1M |
| BIOCRYST PHARMACEUTICALS INCBCRX | 19 funds | $314.0M |
| AMAZON.COM INCAMZN | 18 funds | $4.8B |
Ranked by how many of MPLT'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 MPLT. 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.