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 TLSI 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/TLSI"
Use Arkolith to show who owns TLSI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Nantahala Capital Management, LLC | $8.3M | 2.1M | —Held | Q1 2026 | |
| 2 | WASATCH ADVISORS LP | $5.8M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 3 | GILDER GAGNON HOWE & CO LLC | $3.6M | 889K | ▼−9.2% Reduced · −91K sh | Q1 2026 | |
| 4 | STATE STREET CORP | $1.3M | 328K | ▲+24% Added · +63K sh | Q1 2026 | |
| 5 | VANGUARD FIDUCIARY TRUST CO | $873K | 218K | ▲New +218K sh | Q1 2026 | |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | $659K | 165K | ▲New +165K sh | Q1 2026 | |
| 7 | CWA Asset Management Group, LLC | $288K | 72K | —Held | Q1 2026 | |
| 8 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $278K | 70K | —Held | Q1 2026 | |
| 9 | Ghisallo Capital Management LLC | $100K | 25K | ▲New +25K sh | Q1 2026 | |
| 10 | Man Group plc | $93K | 23K | ▲+60% Added · +9K sh | Q1 2026 | |
| 11 | Connecticut Wealth Management, LLC | $89K | 22K | —Held | Q1 2026 | |
| 12 | Arax Advisory Partners | $16K | 4K | ▼−0.1% Reduced · −3 sh | Q1 2026 | |
| 13 | Ameritas Investment Partners, Inc. | $7K | 2K | —Held | Q1 2026 | |
| 14 | CWM, LLC | $3K | 747 | ▲+858% Added · +669 sh | Q1 2026 | |
| 15 | Sterling Capital Management LLC | $3K | 740 | ▼−46% Reduced · −631 sh | Q1 2026 | |
| 16 | GAMMA Investing LLC | $2K | 386 | ▲+566% Added · +328 sh | Q1 2026 | |
| 17 | MAI Capital Management | $60 | 15 | ▲New +15 sh | Q1 2026 | |
| 18 | Root Financial Partners, LLC | $48 | 12 | ▲New +12 sh | Q1 2026 | |
| 19 | ROTHSCHILD INVESTMENT LLC | $8 | 2 | ▲+100% Added · +1 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 |
|---|---|---|---|---|---|
| Mar 17, 2026 | Szela Mary T | CEO and President, Director | Sell (S) | 16K | $61K |
| Mar 16, 2026 | Devlin Jodi | Chief of Clinical Operations | Sell (S) | 273 | $1K |
| Mar 16, 2026 | Cox Bryan F. | Chief of Research | Sell (S) | 579 | $2K |
| Mar 16, 2026 | Marshak Richard | Chief Commercial Officer | Sell (S) | 419 | $2K |
| Mar 16, 2026 | Stevens Jennifer | Chief Regulatory Officer | Sell (S) | 774 | $3K |
| Mar 12, 2026 | Marshak Richard | Chief Commercial Officer | Sell (S) | 2K | $6K |
| Mar 12, 2026 | Stevens Jennifer | Chief Regulatory Officer | Sell (S) | 2K | $6K |
| Mar 12, 2026 | Cox Bryan F. | Chief of Research | Sell (S) | 1K | $6K |
| Mar 12, 2026 | Devlin Jodi | Chief of Clinical Operations | Sell (S) | 2K | $7K |
| Mar 11, 2026 | Cox Bryan F. | Chief of Research | Sell (S) | 1K | $5K |
| Mar 11, 2026 | Marshak Richard | Chief Commercial Officer | Sell (S) | 1K | $6K |
| Mar 11, 2026 | Stevens Jennifer | Chief Regulatory Officer | Sell (S) | 1K | $5K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 21 funds | $7.1B |
| MICROSOFT CORPMSFT | 20 funds | $4.5B |
| JPMORGAN CHASE & COJPM | 20 funds | $1.4B |
| APPLE INCAAPL | 19 funds | $5.5B |
| AMAZON.COM INCAMZN | 19 funds | $4.0B |
| ALPHABET INC-CL AGOOGL | 19 funds | $2.8B |
| META PLATFORMS INC-CLASS AMETA | 19 funds | $2.4B |
| TESLA INCTSLA | 19 funds | $1.5B |
| NETFLIX INCNFLX | 19 funds | $1.0B |
| JOHNSON & JOHNSONJNJ | 19 funds | $994.1M |
| MASTERCARD INC - AMA | 19 funds | $757.7M |
| CHEVRON CORPCVX | 19 funds | $580.7M |
Ranked by how many of TLSI's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for TLSI. 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.