Among active 13F managers last quarter, 20 opened and 24 added, while 10 reduced; the largest holder to move was Sapphire Ventures, L.P. (−11%). Over the last 180 days, 3 insiders sold and 2 insiders bought, a net -$29.3M in open-market trades.
The legs disagree, or only one of them leans.
167 tracked 13F filers disclose a position in NTSK as of the latest SEC 13F filings, a combined $1.4B in reported value. 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.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | ICONIQ Capital, LLC | 66.3M | $562.6M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | 9.3M | $101.8M | ▲+173% Added · +5.9M sh | Q2 2026 | |
| 3 | Vanguard Capital Management LLC | 7.6M | $83.6M | ▲+205% Added · +5.1M sh | Q2 2026 | |
| 4 | Vanguard Portfolio Management LLC | 7.3M | $80.1M | ▲+156% Added · +4.5M sh | Q2 2026 | |
| 5 | Sapphire Ventures, L.P. | 5.0M | $55.1M | ▼−11% Reduced · −634K sh | Q2 2026 | |
| 6 | Public Sector Pension Investment Board | 3.4M | $37.7M | ▼−0.7% Reduced · −23K sh | Q2 2026 | |
| 7 | Crosslink Capital Inc | 3.3M | $36.6M | ▲45× Added · +3.3M sh | Q2 2026 | |
| 8 | Voya Investment Management LLC | 2.9M | $24.4M | ▲+23% Added · +529K sh | Q1 2026 | |
| 9 | Millennium Management LLC | 2.7M | $23.3M | ▲+730% Added · +2.4M sh | Q1 2026 | |
| 10 | Principal Financial Group Inc | 2.5M | $21.6M | ▲+31% Added · +608K sh | Q1 2026 | |
| 11 | Jacobs Levy Equity Management, Inc | 2.5M | $26.9M | ▲+144% Added · +1.5M sh | Q2 2026 | |
| 12 | Geode Capital Management, LLC | 2.3M | $25.2M | ▲+128% Added · +1.3M sh | Q2 2026 | |
| 13 | Wasatch Advisors LP | 2.3M | $25.1M | ▲New +2.3M sh | Q2 2026 | |
| 14 | Clearbridge Investments, LLC | 2.2M | $19.0M | ▲+204% Added · +1.5M sh | Q1 2026 | |
| 15 | BNP Paribas Financial Markets | 2.0M | $16.9M | ▲New +2.0M sh | Q1 2026 | |
| 16 | Morgan Stanley | 1.8M | $15.5M | ▲+639% Added · +1.6M sh | Q1 2026 | |
| 17 | Jump Financial, LLC | 1.5M | $13.0M | ▲54× Added · +1.5M sh | Q1 2026 | |
| 18 | State Street Corp | 1.5M | $16.0M | ▲+100% Added · +731K sh | Q2 2026 | |
| 19 | Mirae Asset Global Etfs Holdings Ltd. | 1.2M | $9.9M | ▲+7.5% Added · +81K sh | Q1 2026 | |
| 20 | Algert Global LLC | 1.2M | $12.7M | ▲New +1.2M sh | Q2 2026 | |
| 21 | Franklin Templeton Inc | 1.2M | $9.9M | ▼−25% Reduced · −388K sh | Q1 2026 | |
| 22 | Vanguard Fiduciary Trust Co | 1.2M | $12.6M | ▲+136% Added · +664K sh | Q2 2026 | |
| 23 | Stephens Investment Management Group LLC | 1.1M | $12.0M | ▲+13% Added · +122K sh | Q2 2026 | |
| 24 | New York Life Insurance Co | 1.0M | $11.3M | —Held | Q2 2026 | |
| 25 | Goldman Sachs Group Inc | 969K | $8.2M | ▼−5.0% Reduced · −52K 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.
Last quarter, 20 funds opened a new position in NTSK and 24 added to an existing one, while 10 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Amazon.com IncAMZN | 81 funds | $79.8B |
| Microsoft CorpMSFT | 79 funds | $104.1B |
| Meta Platforms Inc-Class AMETA | 77 funds | $37.5B |
| Nvidia CorpNVDA | 76 funds | $141.7B |
| JPMorgan Chase & CoJPM | 76 funds | $26.5B |
| Advanced Micro DevicesAMD | 76 funds | $12.1B |
| Eli Lilly & CoLLY | 75 funds | $24.8B |
| Alphabet Inc-CL AGOOGL | 74 funds | $64.6B |
| Lam Research CorpLRCX | 73 funds | $16.6B |
| Apple IncAAPL | 72 funds | $103.5B |
| Broadcom IncAVGO | 71 funds | $58.4B |
| Tesla IncTSLA | 71 funds | $23.7B |
Ranked by how many of NTSK's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in NTSK.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 11, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Sell (S) | 11K | $158K |
| Sep 11, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Sell (S) | 11K | $158K |
| Jul 13, 2026 | Griffith William J.G. | Director, 10% Owner | Buy (P) | 65K | $805K |
| Jul 13, 2026 | ICONIQ Strategic Partners VIII Holdings, L.P. | 10% Owner | Buy (P) | 65K | $805K |
| Jul 10, 2026 | Griffith William J.G. | Director, 10% Owner | Buy (P) | 242K | $3.0M |
| Jul 10, 2026 | ICONIQ Strategic Partners VIII Holdings, L.P. | 10% Owner | Buy (P) | 242K | $3.0M |
| Jul 9, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Sell (S) | 219K | $2.7M |
| Jul 9, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Sell (S) | 219K | $2.7M |
| Jul 8, 2026 | Lightspeed Venture Partners Select, L.P. | 10% Owner | Sell (S) | 11K | $124K |
| Jul 8, 2026 | Lightspeed Venture Partners IX, L.P. | 10% Owner | Sell (S) | 11K | $124K |
| Jul 8, 2026 | ICONIQ Strategic Partners VIII Holdings, L.P. | 10% Owner | Buy (P) 2 lots, same day | 610K | $7.2M |
| Jul 8, 2026 | Griffith William J.G. | Director, 10% Owner | Buy (P) | 610K | $7.2M |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 51 | 13 | – |
Insiders Form 4 open-market | 2 | 3 | -$29.3M |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for NTSK
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/NTSK/capital-change-brief"
Use Arkolith's capital_change_brief for NTSK. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
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.