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 NATH 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/NATH"
Use Arkolith to show who owns NATH, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | GAMCO INVESTORS, INC. ET AL | $29.3M | 291K | ▲+6.7% Added · +18K sh | Q1 2026 | |
| 2 | GABELLI FUNDS LLC | $18.8M | 187K | ▲+9.2% Added · +16K sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $17.6M | 175K | ▲+1.8% Added · +3K sh | Q1 2026 | |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $15.5M | 154K | ▲+8.7% Added · +12K sh | Q1 2026 | |
| 5 | VANGUARD GROUP INC | $13.1M | 140K | ▲+1.1% Added · +1K sh | Q4 2025 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $11.7M | 116K | ▲New +116K sh | Q1 2026 | |
| 7 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $6.7M | 66K | ▲New +66K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $6.6M | 66K | ▲+2.3% Added · +1K sh | Q1 2026 | |
| 9 | STATE STREET CORP | $5.8M | 58K | ▲+2.5% Added · +1K sh | Q1 2026 | |
| 10 | Schonfeld Strategic Advisors LLC | $5.3M | 52K | ▲New +52K sh | Q1 2026 | |
| 11 | Magnetar Financial LLC | $4.9M | 49K | ▲New +49K sh | Q1 2026 | |
| 12 | MILLENNIUM MANAGEMENT LLC | $4.3M | 43K | ▲+170% Added · +27K sh | Q1 2026 | |
| 13 | DIMENSIONAL FUND ADVISORS LP | $4.3M | 43K | ▼−68% Reduced · −90K sh | Q1 2026 | |
| 14 | TWO SIGMA INVESTMENTS, LP | $3.9M | 39K | ▼−27% Reduced · −14K sh | Q1 2026 | |
| 15 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.4M | 34K | ▼−15% Reduced · −6K sh | Q1 2026 | |
| 16 | Qube Research & Technologies Ltd | $3.0M | 30K | ▲+114% Added · +16K sh | Q1 2026 | |
| 17 | Bank of New York Mellon Corp | $2.9M | 29K | ▲+1.7% Added · +476 sh | Q1 2026 | |
| 18 | NORTHERN TRUST CORP | $2.5M | 25K | ▲+3.2% Added · +780 sh | Q1 2026 | |
| 19 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $2.4M | 24K | ▲New +24K sh | Q1 2026 | |
| 20 | TUDOR INVESTMENT CORP ET AL | $2.1M | 21K | ▲New +21K sh | Q1 2026 | |
| 21 | LMR Partners LLP | $2.0M | 20K | ▲New +20K sh | Q1 2026 | |
| 22 | Trexquant Investment LP | $1.9M | 19K | ▲+81% Added · +8K sh | Q1 2026 | |
| 23 | VANGUARD FIDUCIARY TRUST CO | $1.8M | 18K | ▲New +18K sh | Q1 2026 | |
| 24 | LAZARD ASSET MANAGEMENT LLC | $1.7M | 17K | ▲+560% Added · +15K sh | Q1 2026 | |
| 25 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.7M | 17K | ▲New +17K 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 11, 2026 | Levine Andrew M | Director | Option exercise (M) | 10K | $0 |
| Jun 11, 2026 | Levine Andrew M | Director | Option exercise (M) | 10K | $685K |
| Jun 11, 2026 | Levine Andrew M | Director | Tax withholding (F) | 7K | $685K |
| Dec 8, 2025 | LORBER HOWARD M | Executive Chairman, Director, 10% Owner | Tax withholding (F) | 5K | $459K |
| Dec 8, 2025 | LORBER HOWARD M | Executive Chairman, Director, 10% Owner | Option exercise (M) | 10K | $0 |
| Dec 8, 2025 | LORBER HOWARD M | Executive Chairman, Director, 10% Owner | Option exercise (M) | 10K | — |
| Feb 13, 2025 | PETROCELLI ATTILIO | Director | Gift (G) | 22K | $0 |
| Feb 11, 2025 | GENSON BRIAN S | Director | Sell (S) | 900 | $78K |
| Feb 11, 2025 | GENSON BRIAN S | Director | Sell (S) | 100 | $9K |
| Dec 8, 2024 | LORBER HOWARD M | Executive Chairman, Director, 10% Owner | Option exercise (M) | 10K | $0 |
| Dec 8, 2024 | LORBER HOWARD M | Executive Chairman, Director, 10% Owner | Tax withholding (F) | 5K | $437K |
| Dec 8, 2024 | LORBER HOWARD M | Executive Chairman, Director, 10% Owner | Option exercise (M) | 10K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 30 funds | $12.4B |
| BANK OF AMERICA CORPBAC | 30 funds | $1.8B |
| APPLE INCAAPL | 29 funds | $16.5B |
| ALPHABET INC-CL AGOOGL | 29 funds | $8.8B |
| META PLATFORMS INC-CLASS AMETA | 29 funds | $6.6B |
| UNITEDHEALTH GROUP INCUNH | 29 funds | $1.9B |
| AMAZON.COM INCAMZN | 28 funds | $9.9B |
| TESLA INCTSLA | 28 funds | $5.0B |
| MICRON TECHNOLOGY INCMU | 28 funds | $3.6B |
| LAM RESEARCH CORPLRCX | 28 funds | $1.6B |
| GENERAL MOTORS COGM | 28 funds | $1.4B |
| MORGAN STANLEYMS | 28 funds | $1.3B |
Ranked by how many of NATH'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 NATH. 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.