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/ONC/capital-change-brief"
Use Arkolith's capital_change_brief for ONC. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BAKER BROS. ADVISORS LP | $2.6B | 8.8M | —Held | Q1 2026 | |
| 2 | PRIMECAP MANAGEMENT CO/CA/ | $1.5B | 5.0M | ▼−0.1% Reduced · −5K sh | Q1 2026 | |
| 3 | FMR LLC | $1.1B | 3.7M | ▼−7.5% Reduced · −299K sh | Q1 2026 | |
| 4 | CITADEL ADVISORS LLC | $306.6M | 1.1M | ▲+93% Added · +499K sh | Q1 2026 | |
| 5 | HHLR ADVISORS, LTD. | $307.2M | 1.0M | —Held | Q1 2026 | |
| 6 | Temasek Holdings (Private) Ltd | $256.2M | 863K | ▼−6.2% Reduced · −57K sh | Q1 2026 | |
| 7 | BlackRock, Inc. | $195.3M | 658K | ▼−2.8% Reduced · −19K sh | Q1 2026 | |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | $160.3M | 540K | ▼−61% Reduced · −833K sh | Q1 2026 | |
| 9 | Siren, L.L.C. | $138.1M | 465K | ▼−7.0% Reduced · −35K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $137.9M | 464K | ▲+6.1% Added · +27K sh | Q1 2026 | |
| 11 | UBS Group AG | $123.3M | 415K | ▲+173% Added · +263K sh | Q1 2026 | |
| 12 | BANK OF AMERICA CORP /DE/ | $120.4M | 405K | ▲+7.0% Added · +26K sh | Q1 2026 | |
| 13 | Baird Financial Group, Inc. | $103.8M | 350K | ▲+15% Added · +45K sh | Q1 2026 | |
| 14 | Candriam S.C.A. | $77.1M | 260K | ▲+32% Added · +62K sh | Q1 2026 | |
| 15 | Man Group plc | $71.8M | 242K | ▼−2.6% Reduced · −7K sh | Q1 2026 | |
| 16 | FIRST TRUST ADVISORS LP | $71.7M | 241K | ▲+92% Added · +116K sh | Q1 2026 | |
| 17 | MILLENNIUM MANAGEMENT LLC | $60.8M | 205K | ▲+551% Added · +173K sh | Q1 2026 | |
| 18 | FRANKLIN RESOURCES INC | $59.9M | 202K | ▲+113% Added · +107K sh | Q1 2026 | |
| 19 | Nuveen, LLC | $58.3M | 196K | ▲+1.2% Added · +2K sh | Q1 2026 | |
| 20 | BNP PARIBAS FINANCIAL MARKETS | $54.7M | 184K | ▼−4.9% Reduced · −10K sh | Q1 2026 | |
| 21 | MARSHALL WACE, LLP | $51.3M | 173K | ▲+13% Added · +20K sh | Q1 2026 | |
| 22 | JENNISON ASSOCIATES LLC | $45.9M | 154K | ▲+102% Added · +78K sh | Q1 2026 | |
| 23 | TOCQUEVILLE ASSET MANAGEMENT L.P. | Withheld | 149K | ▲+107% Added · +77K sh | Q1 2026 | |
| 24 | M&G Plc | $41.0M | 138K | ▲+6.5% Added · +8K sh | Q1 2026 | |
| 25 | Artisan Partners Limited Partnership | $40.7M | 137K | ▼−17% Reduced · −28K 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 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Option exercise (M) | 840K | $0 |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 51 | $16K |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 740 | $233K |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 15K | $4.7M |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 36K | $11.2M |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 6K | $1.7M |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 5K | $1.5M |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 680 | $210K |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 597 | $183K |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 1K | $439K |
| Jul 17, 2026 | OYLER JOHN | Chief Executive Officer, Director | Option exercise (M) | 65K | $7.8M |
| Jul 16, 2026 | OYLER JOHN | Chief Executive Officer, Director | Option exercise (M) | 911K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INC-CL AGOOGL | 101 funds | $27.5B |
| MICROSOFT CORPMSFT | 100 funds | $37.2B |
| VISA INC-CLASS A SHARESV | 100 funds | $10.0B |
| AMAZON.COM INCAMZN | 99 funds | $26.6B |
| BROADCOM INCAVGO | 99 funds | $19.5B |
| META PLATFORMS INC-CLASS AMETA | 99 funds | $15.9B |
| NVIDIA CORPNVDA | 98 funds | $48.8B |
| APPLE INCAAPL | 98 funds | $41.3B |
| ELI LILLY & COLLY | 98 funds | $9.2B |
| TESLA INCTSLA | 98 funds | $9.2B |
| BOSTON SCIENTIFIC CORPBSX | 98 funds | $2.3B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 97 funds | $8.2B |
Ranked by how many of ONC'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 ONC. 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.