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/BLFS/capital-change-brief"
Use Arkolith's capital_change_brief for BLFS. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. | Withheld | 6.5M | ▲+26% Added · +1.3M sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $116.4M | 6.1M | ▲+3.2% Added · +190K sh | Q1 2026 | |
| 3 | Casdin Capital, LLC | $113.7M | 6.0M | —Held | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $36.6M | 1.9M | ▲New +1.9M sh | Q1 2026 | |
| 5 | STATE STREET CORP | $30.1M | 1.6M | ▲+4.7% Added · +71K sh | Q1 2026 | |
| 6 | FMR LLC | $28.1M | 1.5M | ▼−5.0% Reduced · −78K sh | Q1 2026 | |
| 7 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $22.8M | 1.2M | ▲+19% Added · +193K sh | Q1 2026 | |
| 8 | FRED ALGER MANAGEMENT, LLC | $20.6M | 1.1M | ▼−0.4% Reduced · −4K sh | Q1 2026 | |
| 9 | DIMENSIONAL FUND ADVISORS LP | $19.8M | 1.0M | ▲+1.0% Added · +11K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $18.5M | 972K | ▲+2.0% Added · +19K sh | Q1 2026 | |
| 11 | BANK OF AMERICA CORP /DE/ | $17.3M | 904K | ▲+73% Added · +383K sh | Q1 2026 | |
| 12 | AMERIPRISE FINANCIAL INC | $17.2M | 901K | ▼−0.3% Reduced · −3K sh | Q1 2026 | |
| 13 | ROYAL BANK OF CANADA | $16.9M | 885K | ▲+8.1% Added · +66K sh | Q1 2026 | |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | $16.5M | 865K | ▲New +865K sh | Q1 2026 | |
| 15 | PALISADE CAPITAL MANAGEMENT, LP | $14.5M | 759K | ▼−6.5% Reduced · −52K sh | Q1 2026 | |
| 16 | Rockefeller Capital Management L.P. | $14.1M | 741K | ▲+5.0% Added · +35K sh | Q1 2026 | |
| 17 | GENEVA CAPITAL MANAGEMENT LLC | $14.1M | 740K | ▼−7.9% Reduced · −64K sh | Q1 2026 | |
| 18 | Granahan Investment Management, LLC | $13.8M | 722K | ▲+50% Added · +240K sh | Q1 2026 | |
| 19 | Stephens Investment Management Group LLC | $12.8M | 673K | ▲+11% Added · +66K sh | Q1 2026 | |
| 20 | CRAMER ROSENTHAL MCGLYNN LLC | $12.1M | 633K | ▲New +633K sh | Q1 2026 | |
| 21 | MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | $10.9M | 573K | ▼−0.5% Reduced · −3K sh | Q1 2026 | |
| 22 | MORGAN STANLEY | $8.5M | 444K | ▼−17% Reduced · −91K sh | Q1 2026 | |
| 23 | RAYMOND JAMES FINANCIAL INC | $8.4M | 444K | ▲+0.9% Added · +4K sh | Q1 2026 | |
| 24 | NORTHERN TRUST CORP | $8.4M | 443K | ▲+5.7% Added · +24K sh | Q1 2026 | |
| 25 | Curi Capital, LLC | $8.1M | 426K | ▲+0.6% Added · +2K 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 7, 2026 | Berard Todd | Chief Marketing Officer | Tax withholding (F) | 293 | $8K |
| Jul 7, 2026 | Mathew Aby J. | EVP & Chief Scientific Officer | Tax withholding (F) | 516 | $14K |
| Jul 7, 2026 | Wichterman Troy | Chief Financial Officer | Tax withholding (F) | 844 | $23K |
| Jun 18, 2026 | Berard Todd | Chief Marketing Officer | Tax withholding (F) | 470 | $12K |
| Jun 18, 2026 | Werner Sean | Chief Technology Officer | Tax withholding (F) | 420 | $11K |
| Jun 18, 2026 | DE GREEF RODERICK | President and CEO, Director | Tax withholding (F) | 3K | $72K |
| Jun 18, 2026 | Wichterman Troy | Chief Financial Officer | Tax withholding (F) | 937 | $24K |
| Jun 18, 2026 | Mathew Aby J. | EVP & Chief Scientific Officer | Tax withholding (F) | 564 | $15K |
| Jun 8, 2026 | Berard Todd | Chief Marketing Officer | Tax withholding (F) | 356 | $9K |
| Jun 8, 2026 | Wichterman Troy | Chief Financial Officer | Tax withholding (F) | 1K | $27K |
| Jun 8, 2026 | Mathew Aby J. | EVP & Chief Scientific Officer | Tax withholding (F) | 627 | $16K |
| May 21, 2026 | Casdin Partners Master Fund, L.P. | 10% Owner | Sell (S) | 650K | $15.4M |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 55 funds | $24.0B |
| ALPHABET INC-CL AGOOGL | 55 funds | $15.9B |
| AMAZON.COM INCAMZN | 54 funds | $16.5B |
| NVIDIA CORPNVDA | 53 funds | $32.3B |
| META PLATFORMS INC-CLASS AMETA | 53 funds | $10.2B |
| VISA INC-CLASS A SHARESV | 53 funds | $4.8B |
| COSTCO WHOLESALE CORPCOST | 53 funds | $4.2B |
| INTUITIVE SURGICAL INCISRG | 53 funds | $1.9B |
| APPLE INCAAPL | 52 funds | $27.4B |
| BROADCOM INCAVGO | 52 funds | $13.0B |
| ALPHABET INC-CL CGOOG | 52 funds | $10.4B |
| ELI LILLY & COLLY | 52 funds | $6.4B |
Ranked by how many of BLFS'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 BLFS. 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.