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/ANAB/capital-change-brief"
Use Arkolith's capital_change_brief for ANAB. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | EcoR1 Capital, LLC | $437.0M | 7.9M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $93.2M | 1.7M | ▼−3.0% Reduced · −53K sh | Q1 2026 | |
| 3 | TANG CAPITAL MANAGEMENT LLC | $73.8M | 1.3M | ▼−0.1% Reduced · −1K sh | Q1 2026 | |
| 4 | MORGAN STANLEY | $55.1M | 994K | ▼−3.9% Reduced · −41K sh | Q1 2026 | |
| 5 | STATE STREET CORP | $55.0M | 992K | ▼−5.8% Reduced · −61K sh | Q1 2026 | |
| 6 | Affinity Asset Advisors, LLC | $52.1M | 940K | ▲+111% Added · +495K sh | Q1 2026 | |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | $47.3M | 853K | ▲New +853K sh | Q1 2026 | |
| 8 | Palo Alto Investors LP | $35.4M | 638K | ▼−7.5% Reduced · −52K sh | Q1 2026 | |
| 9 | 683 Capital Management, LLC | $34.7M | 625K | ▼−3.6% Reduced · −23K sh | Q1 2026 | |
| 10 | D. E. Shaw & Co., Inc. | $32.1M | 579K | ▼−14% Reduced · −91K sh | Q1 2026 | |
| 11 | First Light Asset Management, LLC | $31.4M | 565K | ▼−13% Reduced · −81K sh | Q1 2026 | |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $28.9M | 520K | ▲+11% Added · +51K sh | Q1 2026 | |
| 13 | VANGUARD PORTFOLIO MANAGEMENT LLC | $28.8M | 520K | ▲New +520K sh | Q1 2026 | |
| 14 | BANK OF AMERICA CORP /DE/ | $27.8M | 501K | ▲+283% Added · +370K sh | Q1 2026 | |
| 15 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $27.3M | 492K | ▼−12% Reduced · −68K sh | Q1 2026 | |
| 16 | MILLENNIUM MANAGEMENT LLC | $26.4M | 476K | ▼−42% Reduced · −338K sh | Q1 2026 | |
| 17 | FMR LLC | $26.2M | 473K | ▲17× Added · +446K sh | Q1 2026 | |
| 18 | TWO SIGMA INVESTMENTS, LP | $25.8M | 465K | ▲+81% Added · +208K sh | Q1 2026 | |
| 19 | FEDERATED HERMES, INC. | $20.2M | 364K | ▲+22% Added · +65K sh | Q1 2026 | |
| 20 | Woodline Partners LP | $19.1M | 344K | ▼−31% Reduced · −157K sh | Q1 2026 | |
| 21 | GOLDMAN SACHS GROUP INC | $18.5M | 333K | ▼−17% Reduced · −66K sh | Q1 2026 | |
| 22 | Nuveen, LLC | $17.5M | 316K | ▼−0.2% Reduced · −620 sh | Q1 2026 | |
| 23 | Squarepoint Ops LLC | $14.8M | 268K | ▲+67% Added · +107K sh | Q1 2026 | |
| 24 | Qube Research & Technologies Ltd | $14.1M | 255K | ▲+134% Added · +146K sh | Q1 2026 | |
| 25 | Sofinnova Investments, Inc. | $13.8M | 248K | ▼−14% Reduced · −39K 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 |
|---|---|---|---|---|---|
| Jun 15, 2026 | RENTON HOLLINGS | Director | Option exercise (M) | 6K | $0 |
| Jun 15, 2026 | RENTON HOLLINGS | Director | Option exercise (M) | 6K | $0 |
| Jun 15, 2026 | Orwin John A | Director | Option exercise (M) | 6K | $0 |
| Jun 15, 2026 | Orwin John A | Director | Option exercise (M) | 6K | $0 |
| Jun 15, 2026 | Schmid John P. | Director | Option exercise (M) | 6K | $0 |
| Jun 15, 2026 | Schmid John P. | Director | Option exercise (M) | 6K | $0 |
| May 11, 2026 | Hughes Owen | Director | Grant (A) | 11K | $0 |
| May 11, 2026 | Murphy Christopher M. | Chief Financial Officer | Grant (A) | 26K | $0 |
| Apr 27, 2026 | GRAY SUSANNAH | Director | Grant (A) | 11K | $0 |
| Apr 20, 2026 | RENTON HOLLINGS | Director | Disposed to issuer (D) | 15K | $0 |
| Apr 20, 2026 | RENTON HOLLINGS | Director | Grant (A) | 15K | $0 |
| Apr 20, 2026 | RENTON HOLLINGS | Director | Disposed to issuer (D) | 6K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| ELI LILLY & COLLY | 65 funds | $7.7B |
| AUTOMATIC DATA PROCESSINGADP | 63 funds | $1.3B |
| MICROSOFT CORPMSFT | 62 funds | $30.8B |
| AMAZON.COM INCAMZN | 62 funds | $22.7B |
| BROADCOM INCAVGO | 62 funds | $18.2B |
| MICRON TECHNOLOGY INCMU | 62 funds | $8.5B |
| COSTCO WHOLESALE CORPCOST | 62 funds | $5.2B |
| SANDISK CORPSNDK | 62 funds | $1.8B |
| DANAHER CORPDHR | 62 funds | $1.6B |
| NVIDIA CORPNVDA | 61 funds | $48.2B |
| META PLATFORMS INC-CLASS AMETA | 61 funds | $15.2B |
| PALANTIR TECHNOLOGIES INC-APLTR | 61 funds | $4.8B |
Ranked by how many of ANAB'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 ANAB. 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.