410 tracked 13F filers disclose a position in RGEN as of the latest SEC 13F filings, a combined $7.5B 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 | 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 | →First observed position No prior filed position | Q1 2026 | |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | $271.6M | 2.3M | →First observed position No prior filed position | Q1 2026 | |
| 7 | STATE STREET CORP | $245.7M | 1.8M | ▲+1.3% Added · +23K sh | Q2 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 | $169.3M | 1.2M | ▲+2.9% Added · +35K sh | Q2 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 | GEODE CAPITAL MANAGEMENT, LLC | $145.0M | 1.1M | ▼−0.2% Reduced · −2K sh | Q2 2026 | |
| 17 | Conestoga Capital Advisors, LLC | $133.8M | 981K | ▼−11% Reduced · −117K sh | Q2 2026 | |
| 18 | Stephens Investment Management Group LLC | $127.9M | 937K | ▲+24% Added · +182K sh | Q2 2026 | |
| 19 | AMERIPRISE FINANCIAL INC | $109.0M | 925K | ▲+87% Added · +431K sh | Q1 2026 | |
| 20 | Vestal Point Capital, LP | $109.0M | 925K | ▲11× Added · +842K sh | Q1 2026 | |
| 21 | DIMENSIONAL FUND ADVISORS LP | $100.7M | 855K | ▲+6.3% Added · +50K sh | Q1 2026 | |
| 22 | ALLIANCEBERNSTEIN L.P. | $136.3M | 832K | ▼−16% Reduced · −163K sh | Q1 2026 | |
| 23 | CONGRESS ASSET MANAGEMENT CO | $94.0M | 798K | ▲+6.9% Added · +52K sh | Q1 2026 | |
| 24 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $107.6M | 789K | ▲New +789K sh | Q2 2026 | |
| 25 | Holocene Advisors, LP | $83.5M | 709K | ▼−26% Reduced · −252K 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, 4 funds opened a new position in RGEN and 31 added to an existing one, while 28 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 236 funds | $259.8B |
| NVIDIA CORPNVDA | 234 funds | $395.1B |
| AMAZON.COM INCAMZN | 232 funds | $200.0B |
| APPLE INCAAPL | 227 funds | $284.2B |
| ALPHABET INC-CL AGOOGL | 225 funds | $168.5B |
| ELI LILLY & COLLY | 224 funds | $83.9B |
| META PLATFORMS INC-CLASS AMETA | 222 funds | $115.5B |
| BROADCOM INCAVGO | 217 funds | $152.7B |
| ALPHABET INC-CL CGOOG | 216 funds | $120.3B |
| VISA INC-CLASS A SHARESV | 215 funds | $63.3B |
| THERMO FISHER SCIENTIFIC INCTMO | 215 funds | $25.0B |
| JPMORGAN CHASE & COJPM | 212 funds | $60.9B |
Ranked by how many of RGEN's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 20, 2026 | Loeillot Olivier | Chief Executive Officer, Director | Sell (S) | 5K | $977K |
| Jul 16, 2026 | Garland Jason K | CFO | Sell (S) | 530 | $80K |
| Jun 25, 2026 | Garland Jason K | CFO | Sell (S) | 733 | $106K |
| Apr 21, 2026 | Loeillot Olivier | Chief Executive Officer, Director | Sell (S) | 4K | $536K |
| Dec 17, 2025 | DAWES KAREN A | Director | Sell (S) | 275 | $44K |
| Nov 25, 2025 | Loeillot Olivier | Chief Executive Officer, Director | Sell (S) | 7K | $1.2M |
| Nov 18, 2025 | Bylund James | Chief Operating Officer | Sell (S) | 2K | $331K |
| Nov 13, 2025 | Hunt Anthony | Director | Sell (S) | 2K | $269K |
| Nov 13, 2025 | Hunt Anthony | Director | Sell (S) | 2K | $320K |
| Nov 13, 2025 | Hunt Anthony | Director | Sell (S) | 3K | $448K |
| Nov 13, 2025 | Hunt Anthony | Director | Sell (S) | 3K | $386K |
| Nov 13, 2025 | Hunt Anthony | Director | Sell (S) | 3K | $466K |
| Class | 13F holders | Value held |
|---|---|---|
| RGENthis pagecs | 410 funds | $7.5B |
| RGEN 1 12/15/28NOTE 1.000%12/1 | 51 funds | $519.4M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for RGEN
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.
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.