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 TSLG 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/TSLG"
Use Arkolith to show who owns TSLG, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Blueprint Investment Partners LLC | $203K | 34K | ▲+13% Added · +4K sh | Q1 2026 | |
| 2 | Optiver Holding B.V. | $186K | 31K | ▲+25% Added · +6K sh | Q1 2026 | |
| 3 | XTX Topco Ltd | $183K | 31K | ▲New +31K sh | Q1 2026 | |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $164K | 27K | ▼−29% Reduced · −11K sh | Q1 2026 | |
| 5 | Larson Financial Group LLC | $24K | 4K | ▲New +4K sh | Q1 2026 | |
| 6 | SIMPLEX TRADING, LLC | $7K | 1K | ▲+66% Added · +476 sh | Q1 2026 | |
| 7 | SBI Securities Co., Ltd. | $3K | 581 | ▲+475% Added · +480 sh | Q1 2026 | |
| 8 | Tower Research Capital LLC (TRC) | $2K | 291 | ▲+210% Added · +197 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 |
|---|---|---|
| NVIDIA CORPNVDA | 11 funds | $22.5B |
| SS SPDR S&P 500 ETF TRUST-USSPY | 11 funds | $18.6B |
| MICROSOFT CORPMSFT | 11 funds | $18.3B |
| APPLE INCAAPL | 11 funds | $15.8B |
| AMAZON.COM INCAMZN | 11 funds | $10.5B |
| BROADCOM INCAVGO | 11 funds | $10.3B |
| ALPHABET INC-CL AGOOGL | 11 funds | $9.0B |
| META PLATFORMS INC-CLASS AMETA | 11 funds | $8.5B |
| ALPHABET INC-CL CGOOG | 11 funds | $6.8B |
| JPMORGAN CHASE & COJPM | 11 funds | $6.7B |
| TESLA INCTSLA | 11 funds | $6.3B |
| INVESCO QQQ TRUST SERIES 1QQQ | 11 funds | $5.5B |
Ranked by how many of TSLG'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 TSLG. 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.