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 DSE 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/DSE"
Use Arkolith to show who owns DSE, which funds added or reduced it, and which SEC filings prove each claim.
Not held in any tracked 13F filing yet.
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 25, 2021 | CSS LLC/IL | 10% Owner | Other (J) | 492K | — |
| Jun 21, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 3K | $27K |
| Jun 18, 2021 | Grumhaus David D Jr. | Insider | Sell (S) | 2K | $16K |
| May 24, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 1K | $10K |
| May 19, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 78 | $666 |
| May 14, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 1K | $9K |
| May 13, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 426 | $4K |
| May 12, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 2K | $20K |
| May 10, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 4K | $35K |
| Apr 28, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 77 | $589 |
| Apr 27, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 187 | $1K |
| Apr 26, 2021 | CSS LLC/IL | 10% Owner | Buy (P) | 112 | $848 |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for DSE. 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.