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/NBIX/capital-change-brief"
Use Arkolith's capital_change_brief for NBIX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.8B | 13.4M | ▲+4.3% Added · +555K sh | Q1 2026 | |
| 2 | DODGE & COX | $719.4M | 5.5M | ▼−0.8% Reduced · −47K sh | Q1 2026 | |
| 3 | JPMORGAN CHASE & CO | $700.5M | 5.4M | ▲+4.6% Added · +242K sh | Q1 2026 | |
| 4 | AQR CAPITAL MANAGEMENT LLC | $650.7M | 4.9M | ▲+51% Added · +1.7M sh | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $622.6M | 4.7M | ▲New +4.7M sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $594.4M | 4.5M | ▲New +4.5M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $573.7M | 4.4M | ▲+2.6% Added · +112K sh | Q1 2026 | |
| 8 | TWO SIGMA INVESTMENTS, LP | $403.2M | 3.1M | ▲+211% Added · +2.1M sh | Q1 2026 | |
| 9 | RENAISSANCE TECHNOLOGIES LLC | $318.7M | 2.4M | ▲+8.0% Added · +180K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $280.8M | 2.1M | ▲+3.8% Added · +77K sh | Q1 2026 | |
| 11 | BNP Paribas Asset Management Holding S.A. | $196.8M | 1.5M | ▲+7.0% Added · +98K sh | Q1 2026 | |
| 12 | Vestal Point Capital, LP | $164.7M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 13 | MILLENNIUM MANAGEMENT LLC | $164.3M | 1.2M | ▲+182% Added · +805K sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $163.7M | 1.2M | ▲+1.8% Added · +22K sh | Q1 2026 | |
| 15 | UBS Group AG | $160.9M | 1.2M | ▲+24% Added · +238K sh | Q1 2026 | |
| 16 | MORGAN STANLEY | $160.6M | 1.2M | ▲+0.8% Added · +10K sh | Q1 2026 | |
| 17 | NORGES BANK | $162.7M | 1.1M | ▲+18% Added · +174K sh | Q4 2025 | |
| 18 | RTW INVESTMENTS, LP | $139.9M | 1.1M | —Held | Q1 2026 | |
| 19 | FIRST TRUST ADVISORS LP | $126.4M | 959K | ▲+97% Added · +472K sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $118.9M | 903K | ▲+6.1% Added · +52K sh | Q1 2026 | |
| 21 | IEQ CAPITAL, LLC | $100.9M | 766K | ▲+2.8% Added · +21K sh | Q1 2026 | |
| 22 | VICTORY CAPITAL MANAGEMENT INC | $96.4M | 732K | ▲+487% Added · +607K sh | Q1 2026 | |
| 23 | ARMISTICE CAPITAL, LLC | $95.4M | 724K | ▼−12% Reduced · −96K sh | Q1 2026 | |
| 24 | DIMENSIONAL FUND ADVISORS LP | $93.8M | 712K | ▼−0.7% Reduced · −5K sh | Q1 2026 | |
| 25 | Bank of New York Mellon Corp | $92.5M | 702K | ▼−4.9% Reduced · −36K 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 |
|---|---|---|---|---|---|
| Jul 10, 2026 | Delaet Ingrid | Chief Regulatory Officer | Option exercise (M) | 4K | $463K |
| Jul 10, 2026 | Delaet Ingrid | Chief Regulatory Officer | Sell (S) | 4K | $791K |
| Jul 10, 2026 | Delaet Ingrid | Chief Regulatory Officer | Option exercise (M) | 4K | $0 |
| Jul 9, 2026 | Delaet Ingrid | Chief Regulatory Officer | Option exercise (M) | 8K | $873K |
| Jul 9, 2026 | Delaet Ingrid | Chief Regulatory Officer | Sell (S) | 8K | $1.5M |
| Jul 9, 2026 | Delaet Ingrid | Chief Regulatory Officer | Option exercise (M) | 8K | $0 |
| Jul 9, 2026 | Lippoldt Darin | Chief Legal Officer | Option exercise (M) | 10K | $815K |
| Jul 9, 2026 | Lippoldt Darin | Chief Legal Officer | Sell (S) | 10K | $1.8M |
| Jul 9, 2026 | Lippoldt Darin | Chief Legal Officer | Option exercise (M) | 10K | $0 |
| Jul 8, 2026 | Delaet Ingrid | Chief Regulatory Officer | Option exercise (M) | 3K | $283K |
| Jul 8, 2026 | Delaet Ingrid | Chief Regulatory Officer | Sell (S) | 3K | $489K |
| Jul 8, 2026 | Delaet Ingrid | Chief Regulatory Officer | Option exercise (M) | 3K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 241 funds | $277.9B |
| ELI LILLY & COLLY | 240 funds | $80.8B |
| APPLE INCAAPL | 237 funds | $290.1B |
| AMAZON.COM INCAMZN | 237 funds | $206.4B |
| META PLATFORMS INC-CLASS AMETA | 236 funds | $119.0B |
| NVIDIA CORPNVDA | 235 funds | $389.4B |
| ALPHABET INC-CL AGOOGL | 235 funds | $185.0B |
| BROADCOM INCAVGO | 235 funds | $145.5B |
| JPMORGAN CHASE & COJPM | 234 funds | $71.6B |
| MERCK & CO. INC.MRK | 234 funds | $31.2B |
| BOSTON SCIENTIFIC CORPBSX | 233 funds | $18.5B |
| VISA INC-CLASS A SHARESV | 232 funds | $62.5B |
Ranked by how many of NBIX'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 NBIX. 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.