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/DUOL/capital-change-brief"
Use Arkolith's capital_change_brief for DUOL. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BAILLIE GIFFORD & CO | $480.6M | 4.9M | ▲+0.3% Added · +14K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $392.9M | 4.0M | ▲+2.2% Added · +88K sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $169.8M | 1.7M | ▲New +1.7M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $160.9M | 1.6M | ▲New +1.6M sh | Q1 2026 | |
| 5 | FIL Ltd | $160.0M | 1.6M | ▲+226% Added · +1.1M sh | Q1 2026 | |
| 6 | TWO SIGMA INVESTMENTS, LP | $137.6M | 1.4M | ▲+665% Added · +1.2M sh | Q1 2026 | |
| 7 | BANK OF AMERICA CORP /DE/ | $131.3M | 1.3M | ▲+511% Added · +1.1M sh | Q1 2026 | |
| 8 | FEDERATED HERMES, INC. | $123.5M | 1.3M | ▲14× Added · +1.2M sh | Q1 2026 | |
| 9 | STATE OF MICHIGAN RETIREMENT SYSTEM | $117.6M | 1.2M | ▲+113% Added · +633K sh | Q1 2026 | |
| 10 | STATE STREET CORP | $116.7M | 1.2M | ▲+2.3% Added · +26K sh | Q1 2026 | |
| 11 | UBS Group AG | $108.2M | 1.1M | ▲+252% Added · +786K sh | Q1 2026 | |
| 12 | FMR LLC | $107.8M | 1.1M | ▼−59% Reduced · −1.5M sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $94.0M | 954K | ▲+131% Added · +540K sh | Q1 2026 | |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | $80.7M | 818K | ▲+0.8% Added · +7K sh | Q1 2026 | |
| 15 | JANE STREET GROUP, LLC | $66.2M | 671K | ▲409× Added · +669K sh | Q1 2026 | |
| 16 | RENAISSANCE TECHNOLOGIES LLC | $59.5M | 604K | ▲+91% Added · +288K sh | Q1 2026 | |
| 17 | GILDER GAGNON HOWE & CO LLC | $50.1M | 509K | ▲+0.5% Added · +2K sh | Q1 2026 | |
| 18 | Quinn Opportunity Partners LLC | $49.0M | 497K | ▲+290% Added · +370K sh | Q1 2026 | |
| 19 | NORGES BANK | $86.2M | 491K | ▲+4.3% Added · +20K sh | Q4 2025 | |
| 20 | BNP PARIBAS FINANCIAL MARKETS | $47.6M | 483K | ▲13× Added · +446K sh | Q1 2026 | |
| 21 | Whale Rock Capital Management LLC | $46.5M | 472K | ▼−46% Reduced · −405K sh | Q1 2026 | |
| 22 | JPMORGAN CHASE & CO | $44.4M | 471K | ▲+205% Added · +317K sh | Q1 2026 | |
| 23 | Amundi | $44.3M | 449K | ▲15× Added · +418K sh | Q1 2026 | |
| 24 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | $42.3M | 429K | ▲New +429K sh | Q1 2026 | |
| 25 | GOLDMAN SACHS GROUP INC | $34.7M | 352K | ▲+69% Added · +144K 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 10, 2026 | Bohutinsky Amy | Director | Grant (A) | 130 | $16K |
| Jul 10, 2026 | Shelton James H | Director | Grant (A) | 120 | $15K |
| Jul 10, 2026 | Lilly III John Osborne | Director | Grant (A) | 118 | $15K |
| Jul 10, 2026 | Schlosser Mario | Director | Grant (A) | 140 | $17K |
| Jun 17, 2026 | Chen Stephen C. | General Counsel | Option exercise (M) | 58 | $0 |
| Jun 17, 2026 | Chen Stephen C. | General Counsel | Option exercise (M) | 58 | $836 |
| Jun 3, 2026 | Clemens Sara | Director | Grant (A) | 2K | $0 |
| Jun 3, 2026 | Shelton James H | Director | Grant (A) | 2K | $0 |
| Jun 3, 2026 | Bohutinsky Amy | Director | Grant (A) | 2K | $0 |
| Jun 3, 2026 | GORDON WILLIAM B | Director | Grant (A) | 2K | $0 |
| Jun 3, 2026 | Schlosser Mario | Director | Grant (A) | 2K | $0 |
| Jun 3, 2026 | Ross Bonnie | Director | Grant (A) | 2K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 166 funds | $55.0B |
| MICROSOFT CORPMSFT | 165 funds | $70.7B |
| NVIDIA CORPNVDA | 162 funds | $108.8B |
| APPLE INCAAPL | 162 funds | $81.4B |
| SERVICENOW INCNOW | 161 funds | $4.7B |
| BROADCOM INCAVGO | 160 funds | $37.1B |
| META PLATFORMS INC-CLASS AMETA | 160 funds | $32.5B |
| MICRON TECHNOLOGY INCMU | 160 funds | $14.3B |
| NETFLIX INCNFLX | 160 funds | $11.4B |
| ALPHABET INC-CL AGOOGL | 159 funds | $45.9B |
| ALPHABET INC-CL CGOOG | 159 funds | $33.0B |
| TESLA INCTSLA | 159 funds | $21.2B |
Ranked by how many of DUOL'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 DUOL. 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.