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 PSET 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/PSET"
Use Arkolith to show who owns PSET, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | PRINCIPAL SECURITIES, INC. | $8.7M | 126K | ▲+2.8% Added · +3K sh | Q1 2026 | |
| 2 | Prospera Financial Services Inc | $397K | 6K | ▲~0% Added · +1 sh | Q1 2026 | |
| 3 | Smartleaf Asset Management LLC | $362K | 5K | ▲+4.7% Added · +239 sh | Q1 2026 | |
| 4 | ASSETMARK, INC | $98K | 1K | ▼−3.1% Reduced · −46 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 |
|---|---|---|
| APPLE INCAAPL | 6 funds | $2.9B |
| MICROSOFT CORPMSFT | 6 funds | $2.2B |
| NVIDIA CORPNVDA | 6 funds | $1.9B |
| ALPHABET INC-CL AGOOGL | 6 funds | $1.5B |
| AMAZON.COM INCAMZN | 6 funds | $1.3B |
| ISHARES CORE S&P 500 ETFIVV | 6 funds | $1.2B |
| META PLATFORMS INC-CLASS AMETA | 6 funds | $1.2B |
| SIMON PROPERTY GROUP INCSPG | 6 funds | $1.2B |
| JPMORGAN CHASE & COJPM | 6 funds | $1.0B |
| EXXON MOBIL CORPXOM | 6 funds | $967.8M |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 6 funds | $925.9M |
| ALPHABET INC-CL CGOOG | 6 funds | $902.0M |
Ranked by how many of PSET'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 PSET. 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.