417 tracked 13F filers disclose a position in BBIO as of the latest SEC 13F filings, a combined $11.7B 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. | $1.1B | 14.2M | ▼−2.3% Reduced · −342K sh | Q1 2026 | |
| 2 | JANUS HENDERSON GROUP PLC | $978.6M | 13.2M | ▲+20% Added · +2.2M sh | Q1 2026 | |
| 3 | VIKING GLOBAL INVESTORS LP | $879.4M | 11.8M | ▼−18% Reduced · −2.6M sh | Q1 2026 | |
| 4 | FARALLON CAPITAL MANAGEMENT LLC | $695.5M | 9.4M | ▲+4.1% Added · +367K sh | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $600.1M | 8.1M | →First observed position No prior filed position | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $576.2M | 7.8M | →First observed position No prior filed position | Q1 2026 | |
| 7 | STATE STREET CORP | $330.4M | 4.4M | ▼−10% Reduced · −498K sh | Q2 2026 | |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | $282.3M | 3.8M | ▼−0.7% Reduced · −27K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $254.7M | 3.4M | ▼−30% Reduced · −1.5M sh | Q2 2026 | |
| 10 | CITADEL ADVISORS LLC | $235.7M | 3.2M | ▲+355% Added · +2.5M sh | Q1 2026 | |
| 11 | TWO SIGMA INVESTMENTS, LP | $231.7M | 3.1M | ▲+60% Added · +1.2M sh | Q1 2026 | |
| 12 | D. E. Shaw & Co., Inc. | $189.0M | 2.5M | ▲+15% Added · +331K sh | Q1 2026 | |
| 13 | FRANKLIN RESOURCES INC | $181.1M | 2.4M | ▲+13% Added · +274K sh | Q1 2026 | |
| 14 | FMR LLC | $174.0M | 2.3M | ▼−1.9% Reduced · −47K sh | Q1 2026 | |
| 15 | Polar Capital Holdings Plc | $153.7M | 2.1M | ▼−18% Reduced · −456K sh | Q2 2026 | |
| 16 | UBS Group AG | $150.5M | 2.0M | ▲+8.1% Added · +151K sh | Q1 2026 | |
| 17 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | $146.8M | 2.0M | ▲+0.1% Added · +2K sh | Q1 2026 | |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $146.7M | 2.0M | ▲+0.6% Added · +12K sh | Q1 2026 | |
| 19 | ALLIANCEBERNSTEIN L.P. | $146.0M | 1.9M | ▼−6.9% Reduced · −142K sh | Q1 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $140.9M | 1.9M | ▲+6.4% Added · +115K sh | Q1 2026 | |
| 21 | MORGAN STANLEY | $139.4M | 1.9M | ▲+34% Added · +478K sh | Q1 2026 | |
| 22 | SC US (TTGP), LTD. | $138.2M | 1.9M | —Held | Q1 2026 | |
| 23 | JANE STREET GROUP, LLC | $130.5M | 1.8M | ▲+414% Added · +1.4M sh | Q1 2026 | |
| 24 | Frazier Life Sciences Management, L.P. | $115.3M | 1.5M | ▼−55% Reduced · −1.9M sh | Q2 2026 | |
| 25 | NORGES BANK | $116.8M | 1.5M | ▼−22% Reduced · −430K sh | Q4 2025 |
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, 2 funds opened a new position in BBIO and 39 added to an existing one, while 22 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 |
|---|---|---|
| ELI LILLY & COLLY | 236 funds | $87.6B |
| AMAZON.COM INCAMZN | 233 funds | $204.2B |
| NVIDIA CORPNVDA | 232 funds | $404.8B |
| MICROSOFT CORPMSFT | 232 funds | $275.8B |
| META PLATFORMS INC-CLASS AMETA | 229 funds | $117.2B |
| BROADCOM INCAVGO | 227 funds | $156.3B |
| APPLE INCAAPL | 222 funds | $302.8B |
| ALPHABET INC-CL AGOOGL | 220 funds | $181.7B |
| VISA INC-CLASS A SHARESV | 219 funds | $65.4B |
| MICRON TECHNOLOGY INCMU | 219 funds | $49.6B |
| LAM RESEARCH CORPLRCX | 219 funds | $36.4B |
| JPMORGAN CHASE & COJPM | 218 funds | $70.4B |
Ranked by how many of BBIO's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 19, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 100 | $9K |
| Aug 19, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 2K | $152K |
| Aug 19, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 8K | $679K |
| Aug 18, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 1K | $100K |
| Aug 18, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 15K | $1.2M |
| Aug 18, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 17K | $1.4M |
| Aug 18, 2026 | Kumar Neil | Chief Executive Officer, Director | Sell (S) | 2K | $154K |
| Jul 30, 2026 | Apuli Maricel | Chief Accounting Officer | Sell (S) | 2K | $160K |
| Jul 9, 2026 | Ellis Andrea | Director | Sell (S) | 17K | $1.4M |
| Jul 9, 2026 | Cook Jennifer E. | Director | Sell (S) | 36K | $3.0M |
| Jul 9, 2026 | Cook Jennifer E. | Director | Sell (S) | 112K | $10.1M |
| Jun 24, 2026 | Cook Jennifer E. | Director | Sell (S) | 37K | $2.6M |
| Class | 13F holders | Value held |
|---|---|---|
| BBIOthis pagecs | 417 funds | $11.7B |
| BBIO 1.75 03/01/31SDBCV | 39 funds | $912.9M |
| BBIO 2.5 03/15/27Sovereign/Corporate | 37 funds | $690.6M |
| BBIO 2.25 02/01/29SDBCV | 34 funds | $735.6M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for BBIO
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/BBIO/capital-change-brief"
Use Arkolith's capital_change_brief for BBIO. 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 BBIO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.