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/RGEN/capital-change-brief"
Use Arkolith's capital_change_brief for RGEN. 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. | $706.1M | 6.0M | ▼−9.5% Reduced · −626K sh | Q1 2026 | |
| 2 | PRICE T ROWE ASSOCIATES INC /MD/ | $574.7M | 4.9M | ▲+6.1% Added · +279K sh | Q1 2026 | |
| 3 | FMR LLC | $340.1M | 2.9M | ▲+0.7% Added · +19K sh | Q1 2026 | |
| 4 | UNITED CAPITAL FINANCIAL ADVISORS, LLC | $326.8M | 2.8M | ▲+0.1% Added · +3K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $282.4M | 2.4M | ▲New +2.4M sh | Q1 2026 | |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | $271.6M | 2.3M | ▲New +2.3M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $209.4M | 1.8M | ▲+3.4% Added · +58K sh | Q1 2026 | |
| 8 | WASATCH ADVISORS LP | $217.0M | 1.6M | ▲+28% Added · +347K sh | Q2 2026 | |
| 9 | Bank of New York Mellon Corp | $180.4M | 1.5M | ▲+14% Added · +187K sh | Q1 2026 | |
| 10 | MAVERICK CAPITAL LTD | $178.9M | 1.5M | ▲New +1.5M sh | Q1 2026 | |
| 11 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $164.7M | 1.4M | ▲+15% Added · +182K sh | Q1 2026 | |
| 12 | T. Rowe Price Investment Management, Inc. | Withheld | 1.4M | ▲+112% Added · +721K sh | Q1 2026 | |
| 13 | RTW INVESTMENTS, LP | $142.1M | 1.2M | ▲+13% Added · +142K sh | Q1 2026 | |
| 14 | FRANKLIN RESOURCES INC | $140.6M | 1.2M | ▲+8.3% Added · +92K sh | Q1 2026 | |
| 15 | CITADEL ADVISORS LLC | $129.5M | 1.1M | ▼−21% Reduced · −295K sh | Q1 2026 | |
| 16 | Conestoga Capital Advisors, LLC | $129.3M | 1.1M | ▲+3.8% Added · +40K sh | Q1 2026 | |
| 17 | GEODE CAPITAL MANAGEMENT, LLC | $125.4M | 1.1M | ▲+3.4% Added · +35K sh | Q1 2026 | |
| 18 | AMERIPRISE FINANCIAL INC | $109.0M | 925K | ▲+87% Added · +431K sh | Q1 2026 | |
| 19 | Vestal Point Capital, LP | $109.0M | 925K | ▲11× Added · +842K sh | Q1 2026 | |
| 20 | DIMENSIONAL FUND ADVISORS LP | $100.7M | 855K | ▲+6.3% Added · +50K sh | Q1 2026 | |
| 21 | ALLIANCEBERNSTEIN L.P. | $136.3M | 832K | ▼−16% Reduced · −163K sh | Q1 2026 | |
| 22 | CONGRESS ASSET MANAGEMENT CO | $94.0M | 798K | ▲+6.9% Added · +52K sh | Q1 2026 | |
| 23 | Stephens Investment Management Group LLC | $89.0M | 756K | ▲+15% Added · +98K sh | Q1 2026 | |
| 24 | Holocene Advisors, LP | $83.5M | 709K | ▼−26% Reduced · −252K sh | Q1 2026 | |
| 25 | Champlain Investment Partners, LLC | $81.7M | 694K | ▼−31% Reduced · −310K 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 16, 2026 | Garland Jason K | CFO | Sell (S) | 530 | $80K |
| Jun 25, 2026 | Garland Jason K | CFO | Sell (S) | 733 | $106K |
| May 14, 2026 | BARTHELEMY NICOLAS | Director | Grant (A) | 995 | $0 |
| May 14, 2026 | BARTHELEMY NICOLAS | Director | Grant (A) | 2K | $0 |
| May 14, 2026 | MUIR GLENN P | Director | Grant (A) | 995 | $0 |
| May 14, 2026 | MUIR GLENN P | Director | Grant (A) | 2K | $0 |
| May 14, 2026 | Madaus Martin D | Director | Grant (A) | 995 | $0 |
| May 14, 2026 | Madaus Martin D | Director | Grant (A) | 2K | $0 |
| May 14, 2026 | DAWES KAREN A | Director | Grant (A) | 995 | $0 |
| May 14, 2026 | DAWES KAREN A | Director | Grant (A) | 2K | $0 |
| May 14, 2026 | EGLINTON MANNER CARRIE | Director | Grant (A) | 995 | $0 |
| May 14, 2026 | EGLINTON MANNER CARRIE | Director | Grant (A) | 2K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 155 funds | $88.6B |
| MICROSOFT CORPMSFT | 154 funds | $62.3B |
| ALPHABET INC-CL AGOOGL | 151 funds | $40.5B |
| WALMART INCWMT | 151 funds | $11.2B |
| ELI LILLY & COLLY | 150 funds | $15.9B |
| VISA INC-CLASS A SHARESV | 150 funds | $13.6B |
| DANAHER CORPDHR | 150 funds | $4.4B |
| APPLE INCAAPL | 149 funds | $72.5B |
| AMAZON.COM INCAMZN | 149 funds | $49.9B |
| BROADCOM INCAVGO | 148 funds | $34.0B |
| INTUITIVE SURGICAL INCISRG | 148 funds | $5.2B |
| META PLATFORMS INC-CLASS AMETA | 147 funds | $26.6B |
Ranked by how many of RGEN'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 RGEN. 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.