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 MSTY 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/MSTY"
Use Arkolith to show who owns MSTY, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Tidal Investments LLC | $11.3M | 533K | ▼−3.2% Reduced · −18K sh | Q1 2026 | |
| 2 | GOLDMAN SACHS GROUP INC | $5.3M | 250K | ▲New +250K sh | Q1 2026 | |
| 3 | UBS Group AG | $3.9M | 183K | ▼−25% Reduced · −60K sh | Q1 2026 | |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.4M | 114K | ▼−63% Reduced · −192K sh | Q1 2026 | |
| 5 | JANE STREET GROUP, LLC | $1.7M | 78K | ▼−17% Reduced · −16K sh | Q1 2026 | |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $1.6M | 77K | ▲+519% Added · +64K sh | Q1 2026 | |
| 7 | CITADEL ADVISORS LLC | $1.0M | 48K | ▲Added Added · +48K sh | Q1 2026 | |
| 8 | OLD MISSION CAPITAL LLC | $832K | 39K | ▼−64% Reduced · −69K sh | Q1 2026 | |
| 9 | GROUP ONE TRADING LLC | $758K | 36K | ▼−27% Reduced · −13K sh | Q1 2026 | |
| 10 | Merit Financial Group, LLC | $388K | 18K | —Held | Q1 2026 | |
| 11 | MORGAN STANLEY | $367K | 17K | ▲+1.2% Added · +207 sh | Q1 2026 | |
| 12 | MARIPAU WEALTH MANAGEMENT LLC | $330K | 16K | ▼−4.5% Reduced · −725 sh | Q1 2026 | |
| 13 | Dynamic Advisor Solutions LLC | $281K | 13K | ▲+82% Added · +6K sh | Q1 2026 | |
| 14 | Focus Partners Wealth | $281K | 13K | ▲New +13K sh | Q1 2026 | |
| 15 | SIMPLEX TRADING, LLC | $145K | 7K | ▼−74% Reduced · −19K sh | Q1 2026 | |
| 16 | US BANCORP \DE\ | $113K | 5K | ▲+351% Added · +4K sh | Q1 2026 | |
| 17 | BANK OF MONTREAL /CAN/ | $111K | 5K | ▲+8.3% Added · +400 sh | Q1 2026 | |
| 18 | EFG International AG | $53K | 2K | ▲New +2K sh | Q1 2026 | |
| 19 | CoreCap Advisors, LLC | $43K | 2K | ▲+9.8% Added · +178 sh | Q1 2026 | |
| 20 | Wilmington Savings Fund Society, FSB | $36K | 2K | —Held | Q1 2026 | |
| 21 | OSAIC HOLDINGS, INC. | $33K | 2K | ▼−36% Reduced · −871 sh | Q1 2026 | |
| 22 | IFP Advisors, Inc | $29K | 1K | ▲+467% Added · +1K sh | Q1 2026 | |
| 23 | TORONTO DOMINION BANK | $21K | 1K | —Held | Q1 2026 | |
| 24 | JPMORGAN CHASE & CO | $21K | 1K | ▲New +1K sh | Q1 2026 | |
| 25 | AdvisorNet Financial, Inc | $21K | 971 | ▲+21% Added · +166 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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 28 funds | $7.5B |
| AMAZON.COM INCAMZN | 28 funds | $6.2B |
| ALPHABET INC-CL AGOOGL | 28 funds | $4.6B |
| BROADCOM INCAVGO | 28 funds | $3.9B |
| JPMORGAN CHASE & COJPM | 28 funds | $3.6B |
| META PLATFORMS INC-CLASS AMETA | 28 funds | $3.6B |
| MICRON TECHNOLOGY INCMU | 28 funds | $2.6B |
| TESLA INCTSLA | 28 funds | $2.4B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 28 funds | $2.4B |
| JOHNSON & JOHNSONJNJ | 28 funds | $2.1B |
| COSTCO WHOLESALE CORPCOST | 28 funds | $2.0B |
| ELI LILLY & COLLY | 28 funds | $1.7B |
Ranked by how many of MSTY's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MSTY. 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.