201 tracked 13F filers disclose a position in ORKA as of the latest SEC 13F filings, a combined $3.7B 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 | FMR LLC | $364.5M | 7.4M | ▲+2.3% Added · +170K sh | Q1 2026 | |
| 2 | Venrock Adviser, LLC | $203.5M | 4.1M | —Held | Q1 2026 | |
| 3 | Fairmount Funds Management LLC | $352.6M | 3.7M | —Held | Q2 2026 | |
| 4 | BlackRock, Inc. | $173.0M | 3.5M | ▼−0.3% Reduced · −12K sh | Q1 2026 | |
| 5 | RTW INVESTMENTS, LP | $298.7M | 3.1M | ▲+53% Added · +1.1M sh | Q2 2026 | |
| 6 | STATE STREET CORP | $254.4M | 2.7M | ▲+66% Added · +1.1M sh | Q2 2026 | |
| 7 | VIKING GLOBAL INVESTORS LP | $130.8M | 2.7M | —Held | Q1 2026 | |
| 8 | Paradigm Biocapital Advisors LP | $113.8M | 2.3M | ▲+36% Added · +610K sh | Q1 2026 | |
| 9 | Deep Track Capital, LP | $99.8M | 2.0M | ▼−5.9% Reduced · −127K sh | Q1 2026 | |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | $91.2M | 1.9M | →First observed position No prior filed position | Q1 2026 | |
| 11 | Bellevue Group AG | $157.7M | 1.7M | ▲+227% Added · +1.2M sh | Q2 2026 | |
| 12 | Remedium Capital Partners, LLC | $149.0M | 1.6M | —Held | Q2 2026 | |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | $136.1M | 1.4M | ▲+50% Added · +475K sh | Q2 2026 | |
| 14 | PERCEPTIVE ADVISORS LLC | $68.4M | 1.4M | ▼−5.5% Reduced · −81K sh | Q1 2026 | |
| 15 | Polar Capital Holdings Plc | $116.9M | 1.2M | ▲+17% Added · +181K sh | Q2 2026 | |
| 16 | CITADEL ADVISORS LLC | $49.4M | 1.0M | ▲+39% Added · +281K sh | Q1 2026 | |
| 17 | FRANKLIN RESOURCES INC | $49.2M | 1.0M | ▲+7.0% Added · +66K sh | Q1 2026 | |
| 18 | MERCER GLOBAL ADVISORS INC /ADV | $39.4M | 802K | ▲+7.7% Added · +57K sh | Q1 2026 | |
| 19 | Avidity Partners Management LP | $37.3M | 760K | ▲+15% Added · +100K sh | Q1 2026 | |
| 20 | PRICE T ROWE ASSOCIATES INC /MD/ | $35.7M | 727K | ▲+12% Added · +78K sh | Q1 2026 | |
| 21 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | $62.7M | 658K | ▲New +658K sh | Q2 2026 | |
| 22 | WESTFIELD CAPITAL MANAGEMENT CO LP | $60.1M | 631K | ▲+102% Added · +318K sh | Q2 2026 | |
| 23 | Woodline Partners LP | $28.2M | 575K | ▲+0.1% Added · +329 sh | Q1 2026 | |
| 24 | Cormorant Asset Management, LP | $26.2M | 533K | —Held | Q1 2026 | |
| 25 | Affinity Asset Advisors, LLC | $24.5M | 500K | ▼−38% Reduced · −303K 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.
Last quarter, 19 funds opened a new position in ORKA and 23 added to an existing one, while 16 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 |
|---|---|---|
| ELI LILLY & COLLY | 105 funds | $60.9B |
| AMAZON.COM INCAMZN | 102 funds | $144.5B |
| NVIDIA CORPNVDA | 101 funds | $296.1B |
| INTUITIVE SURGICAL INCISRG | 101 funds | $20.8B |
| INSMED INCINSM | 99 funds | $4.6B |
| MICROSOFT CORPMSFT | 97 funds | $192.9B |
| UNITEDHEALTH GROUP INCUNH | 97 funds | $19.4B |
| REVOLUTION MEDICINES INCRVMD | 97 funds | $5.0B |
| META PLATFORMS INC-CLASS AMETA | 94 funds | $84.4B |
| MERCK & CO. INC.MRK | 94 funds | $19.1B |
| THERMO FISHER SCIENTIFIC INCTMO | 94 funds | $16.1B |
| BROADCOM INCAVGO | 93 funds | $117.9B |
Ranked by how many of ORKA's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 1, 2026 | Klein Lawrence Otto | Chief Executive Officer, Director | Sell (S) | 5K | $444K |
| Sep 1, 2026 | Klein Lawrence Otto | Chief Executive Officer, Director | Sell (S) | 64K | $5.8M |
| Sep 1, 2026 | Klein Lawrence Otto | Chief Executive Officer, Director | Sell (S) | 7K | $600K |
| Sep 1, 2026 | Sandler Laura Lee | Chief Operating Officer | Sell (S) | 4K | $368K |
| Sep 1, 2026 | Sandler Laura Lee | Chief Operating Officer | Sell (S) | 1K | $91K |
| Aug 17, 2026 | Goncalves Joana | Chief Medical Officer | Sell (S) | 900 | $99K |
| Aug 17, 2026 | Goncalves Joana | Chief Medical Officer | Sell (S) | 300 | $33K |
| Aug 17, 2026 | Goncalves Joana | Chief Medical Officer | Sell (S) | 3K | $372K |
| Aug 17, 2026 | Goncalves Joana | Chief Medical Officer | Sell (S) | 2K | $279K |
| Aug 14, 2026 | Quinlan Paul T | General Counsel | Sell (S) | 4K | $385K |
| Aug 14, 2026 | Quinlan Paul T | General Counsel | Sell (S) | 10K | $1.1M |
| Aug 14, 2026 | Quinlan Paul T | General Counsel | Sell (S) | 15K | $1.6M |
Connected entities for ORKA
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/ORKA/capital-change-brief"
Use Arkolith's capital_change_brief for ORKA. 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 ORKA. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.