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 SILO 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/SILO"
Use Arkolith to show who owns SILO, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $8K | 21K | ▲New +21K sh | Q1 2026 | |
| 2 | VANGUARD FIDUCIARY TRUST CO | $5K | 13K | ▲New +13K sh | Q1 2026 | |
| 3 | STATE STREET CORP | $4K | 13K | —Held | Q1 2026 | |
| 4 | IFP Advisors, Inc | $63 | 175 | ▲New +175 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 |
|---|---|---|---|---|---|
| Dec 15, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 3K | $1K |
| Dec 15, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 3K | $1K |
| Nov 21, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 1K | $370 |
| Nov 20, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 1K | $370 |
| Nov 19, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 5K | $2K |
| Nov 18, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 8K | $3K |
| May 27, 2025 | Weisblum Eric | Chief Executive Officer, Director | Buy (P) | 10K | $4K |
| May 23, 2025 | Munoz Kevin | Director | Grant (A) | 50K | $0 |
| May 23, 2025 | Pavell Jeff | Director | Grant (A) | 50K | $0 |
| May 23, 2025 | Weisblum Eric | Chief Executive Officer, Director | Grant (A) | 200K | $0 |
| May 23, 2025 | Ryweck Daniel E. | Chief Financial Officer | Grant (A) | 50K | $0 |
| May 23, 2025 | Linsley Wayne | Director | Grant (A) | 50K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 3 funds | $3.4B |
| AMAZON.COM INCAMZN | 3 funds | $1.8B |
| MICRON TECHNOLOGY INCMU | 3 funds | $1.6B |
| SS SPDR DOW JONES INDUS AVGDIA | 3 funds | $1.6B |
| APPLE INCAAPL | 3 funds | $1.4B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 3 funds | $1.4B |
| META PLATFORMS INC-CLASS AMETA | 3 funds | $1.1B |
| MICROSOFT CORPMSFT | 3 funds | $1.0B |
| BROADCOM INCAVGO | 3 funds | $1.0B |
| ALPHABET INC-CL AGOOGL | 3 funds | $929.0M |
| TESLA INCTSLA | 3 funds | $816.9M |
| ALPHABET INC-CL CGOOG | 3 funds | $763.8M |
Ranked by how many of SILO'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 SILO. 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.