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 NTSK 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/NTSK"
Use Arkolith to show who owns NTSK, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $93.5M | 5.3M | ▲+52% Added · +1.8M sh | Q4 2025 | |
| 2 | PUBLIC SECTOR PENSION INVESTMENT BOARD | $29.5M | 3.5M | —Held | Q1 2026 | |
| 3 | BlackRock, Inc. | $28.9M | 3.4M | ▲+85% Added · +1.6M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $24.3M | 2.9M | ▲New +2.9M sh | Q1 2026 | |
| 5 | Weiss Asset Management LP | $9.0M | 1.1M | ▲New +1.1M sh | Q1 2026 | |
| 6 | Wilmington Savings Fund Society, FSB | $8.7M | 1.0M | ▲New +1.0M sh | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $8.6M | 1.0M | ▲+59% Added · +375K sh | Q1 2026 | |
| 8 | JACOBS LEVY EQUITY MANAGEMENT, INC | $8.5M | 1.0M | ▲New +1.0M sh | Q1 2026 | |
| 9 | Stephens Investment Management Group LLC | $8.3M | 978K | ▲+117% Added · +528K sh | Q1 2026 | |
| 10 | TUDOR INVESTMENT CORP ET AL | $7.2M | 843K | ▲New +843K sh | Q1 2026 | |
| 11 | STATE STREET CORP | $6.2M | 732K | ▲+184% Added · +474K sh | Q1 2026 | |
| 12 | OFI INVEST ASSET MANAGEMENT | $6.2M | 841K | ▼−7.2% Reduced · −65K sh | Q1 2026 | |
| 13 | CITADEL ADVISORS LLC | $4.3M | 511K | ▲+80% Added · +227K sh | Q1 2026 | |
| 14 | TIGER GLOBAL MANAGEMENT LLC | $4.2M | 500K | —Held | Q1 2026 | |
| 15 | VANGUARD FIDUCIARY TRUST CO | $4.2M | 490K | ▲New +490K sh | Q1 2026 | |
| 16 | MAVERICK CAPITAL LTD | $4.0M | 466K | —Held | Q1 2026 | |
| 17 | Trexquant Investment LP | $3.2M | 371K | ▲New +371K sh | Q1 2026 | |
| 18 | Granahan Investment Management, LLC | $3.1M | 368K | ▲+82% Added · +165K sh | Q1 2026 | |
| 19 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | $3.0M | 352K | ▲New +352K sh | Q1 2026 | |
| 20 | Point72 Asset Management, L.P. | $2.9M | 337K | ▲New +337K sh | Q1 2026 | |
| 21 | LMR Partners LLP | $2.4M | 279K | —Held | Q1 2026 | |
| 22 | Beacon Pointe Advisors, LLC | $1.6M | 193K | ▲New +193K sh | Q1 2026 | |
| 23 | Walleye Capital LLC | $1.4M | 162K | ▼−1.9% Reduced · −3K sh | Q1 2026 | |
| 24 | OCCUDO QUANTITATIVE STRATEGIES LP | $877K | 88K | ▲New +88K sh | Q1 2026 | |
| 25 | Ghisallo Capital Management LLC | $849K | 100K | ▼−60% Reduced · −150K 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 |
|---|---|---|---|---|---|
| Jun 15, 2026 | Janmohamed Arif | Director | Sell (S) | 336K | $3.0M |
| Jun 15, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Sell (S) | 336K | $3.0M |
| Jun 15, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Sell (S) | 336K | $3.0M |
| Jun 12, 2026 | Janmohamed Arif | Director | Conversion (C) | 1.6M | — |
| Jun 12, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Sell (S) | 1.3M | $12.1M |
| Jun 12, 2026 | Janmohamed Arif | Director | Conversion (C) | 1.6M | — |
| Jun 12, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Conversion (C) | 1.6M | — |
| Jun 12, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Conversion (C) | 1.6M | — |
| Jun 12, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Conversion (C) | 1.6M | — |
| Jun 12, 2026 | Janmohamed Arif | Director | Sell (S) | 1.3M | $12.1M |
| Jun 12, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Sell (S) | 1.3M | $12.1M |
| Jun 12, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Conversion (C) | 1.6M | — |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 56 funds | $21.5B |
| NVIDIA CORPNVDA | 55 funds | $32.6B |
| AMAZON.COM INCAMZN | 53 funds | $19.3B |
| NETFLIX INCNFLX | 53 funds | $3.5B |
| SPOTIFY TECHNOLOGY SASPOT | 53 funds | $2.4B |
| ALPHABET INC-CL AGOOGL | 52 funds | $16.4B |
| META PLATFORMS INC-CLASS AMETA | 52 funds | $11.0B |
| TESLA INCTSLA | 52 funds | $6.6B |
| MICRON TECHNOLOGY INCMU | 52 funds | $5.3B |
| LAM RESEARCH CORPLRCX | 52 funds | $3.0B |
| ELI LILLY & COLLY | 51 funds | $5.1B |
| COSTCO WHOLESALE CORPCOST | 51 funds | $4.6B |
Ranked by how many of NTSK'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 NTSK. 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.