263 tracked 13F filers disclose a position in ONC as of the latest SEC 13F filings, a combined $8.3B 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 | 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 | $241.0M | 846K | ▼−2.0% Reduced · −17K sh | Q2 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. | $132.5M | 465K | —Held | Q2 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 | Man Group plc | $87.6M | 307K | ▲+27% Added · +66K sh | Q2 2026 | |
| 15 | Candriam S.C.A. | $82.5M | 290K | ▲+12% Added · +30K sh | Q2 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 | M&G Plc | $41.0M | 138K | ▲+6.5% Added · +8K sh | Q1 2026 | |
| 24 | Artisan Partners Limited Partnership | $40.7M | 137K | ▼−17% Reduced · −28K sh | Q1 2026 | |
| 25 | Lansforsakringar Fondforvaltning AB (publ) | Withheld | 123K | ▲New +123K sh | Q2 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.
Last quarter, 5 funds opened a new position in ONC and 37 added to an existing one, while 13 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 |
|---|---|---|
| MICROSOFT CORPMSFT | 145 funds | $195.9B |
| ALPHABET INC-CL AGOOGL | 145 funds | $135.8B |
| AMAZON.COM INCAMZN | 144 funds | $150.9B |
| NVIDIA CORPNVDA | 143 funds | $287.6B |
| META PLATFORMS INC-CLASS AMETA | 142 funds | $79.7B |
| APPLE INCAAPL | 141 funds | $214.9B |
| ELI LILLY & COLLY | 141 funds | $63.0B |
| BROADCOM INCAVGO | 137 funds | $116.2B |
| TESLA INCTSLA | 135 funds | $50.9B |
| JPMORGAN CHASE & COJPM | 135 funds | $49.0B |
| VISA INC-CLASS A SHARESV | 135 funds | $43.8B |
| ALPHABET INC-CL CGOOG | 134 funds | $81.4B |
Ranked by how many of ONC's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 25, 2026 | Wu Xiaobin | President and COO | Sell (S) | 280 | $106K |
| Aug 12, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 14K | $5.1M |
| Aug 12, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 21K | $7.5M |
| Aug 12, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 15K | $5.5M |
| Aug 12, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 3K | $896K |
| Aug 12, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 2K | $702K |
| Aug 11, 2026 | Lee Chan Henry | SVP, General Counsel | Sell (S) | 3K | $960K |
| Aug 11, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 4 | $1K |
| Aug 11, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 1K | $440K |
| Aug 11, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 3K | $1.2M |
| Aug 11, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 5K | $1.9M |
| Aug 11, 2026 | OYLER JOHN | Chief Executive Officer, Director | Sell (S) | 13K | $4.9M |
Connected entities for ONC
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.
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.