Oruka Therapeutics, Inc.
Ownership
Ownership Structure
Who owns Oruka Therapeutics, Inc. (ORKA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 85.9% of the shares are freely tradable; institutional investors hold 89.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 13.68 | 9,057,645 | +21.9 | 06/30/2026 |
| BlackRock Inc | 7.54 | 4,990,181 | +41.5 | 06/30/2026 |
| VR Adviser, LLC | 6.27 | 4,148,428 | +0.0 | 06/30/2026 |
| Fairmount Funds Management LLC | 5.60 | 3,705,262 | +0.0 | 06/30/2026 |
| Capital World Investors | 5.14 | 3,401,639 | +0.0 | 06/30/2026 |
| RTW INVESTMENTS, LLC | 4.74 | 3,139,030 | +52.5 | 06/30/2026 |
| State Street Corp | 4.04 | 2,673,090 | +65.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.57 | 2,360,971 | +27.0 | 06/30/2026 |
| Paradigm Biocapital Advisors LP | 3.24 | 2,144,526 | -7.6 | 06/30/2026 |
| Deep Track Capital, LP | 2.91 | 1,926,000 | -5.3 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Klein Lawrence Otto | Chief Executive Officer | 923,128 | 94,989,871 $ | Nov 2, 2026 | direct |
| Sandler Laura Lee | Chief Operating Officer | 235,478 | 24,230,686 $ | Sep 15, 2026 | direct |
| Edwards Larry Todd | Chief Commercial Officer | 100,000 | 10,290,000 $ | Aug 24, 2026 | direct |
| Goncalves Joana | Chief Medical Officer | 31,771 | 3,269,236 $ | Oct 15, 2026 | direct |
| Quinlan Paul T | General Counsel | 29,995 | 3,086,486 $ | Oct 20, 2026 | direct |
| Agarwal Arjun | Senior Vice President, Finance | 14,219 | 1,463,135 $ | Oct 12, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 2, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 300 | 98.40 | 29,521 |
| Nov 2, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 756 | 97.45 | 73,676 |
| Nov 2, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 2,442 | 96.70 | 236,147 |
| Nov 2, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 15,036 | 95.64 | 1,437,987 |
| Nov 2, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 6,466 | 94.77 | 612,794 |
| Nov 2, 2026 | Klein Lawrence Otto | Chief Executive Officer | Other | 25,000 | 7.80 | 195,000 |
| Oct 20, 2026 | Quinlan Paul T | General Counsel | Sell | 3,000 | 79.49 | 238,474 |
| Oct 20, 2026 | Quinlan Paul T | General Counsel | Sell | 4,100 | 78.79 | 323,037 |
| Oct 20, 2026 | Quinlan Paul T | General Counsel | Sell | 1,000 | 77.21 | 77,205 |
| Oct 20, 2026 | Quinlan Paul T | General Counsel | Sell | 500 | 76.12 | 38,059 |
| Oct 20, 2026 | Quinlan Paul T | General Counsel | Sell | 400 | 74.90 | 29,960 |
| Oct 20, 2026 | Quinlan Paul T | General Counsel | Other | 9,000 | 7.80 | 70,200 |
| Oct 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 200 | 77.71 | 15,542 |
| Oct 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 700 | 76.67 | 53,666 |
| Oct 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 1,400 | 75.48 | 105,677 |
| Oct 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 1,847 | 74.69 | 137,957 |
| Oct 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 2,853 | 73.89 | 210,806 |
| Oct 15, 2026 | Goncalves Joana | Chief Medical Officer | Other | 3,500 | 7.80 | 27,300 |
| Oct 12, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 200 | 82.84 | 16,567 |
| Oct 12, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 1,958 | 81.86 | 160,272 |
| Oct 12, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 2,100 | 80.76 | 169,596 |
| Oct 12, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 5,741 | 80.03 | 459,453 |
| Oct 12, 2026 | Agarwal Arjun | Senior Vice President, Finance | Other | 1,458 | 34.39 | 50,141 |
| Oct 12, 2026 | Agarwal Arjun | Senior Vice President, Finance | Other | 8,541 | 12.50 | 106,763 |
| Oct 1, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 200 | 84.78 | 16,956 |
| Oct 1, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 8,554 | 84.03 | 718,755 |
| Oct 1, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 16,246 | 83.40 | 1,354,882 |
| Oct 1, 2026 | Klein Lawrence Otto | Chief Executive Officer | Other | 25,000 | 7.80 | 195,000 |
| Sep 21, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 533 | 95.75 | 51,035 |
| Sep 21, 2026 | Quinlan Paul T | General Counsel | Sell | 2,667 | 95.31 | 254,196 |
| Sep 21, 2026 | Quinlan Paul T | General Counsel | Sell | 601 | 94.44 | 56,760 |
| Sep 21, 2026 | Quinlan Paul T | General Counsel | Sell | 3,832 | 93.32 | 357,592 |
| Sep 21, 2026 | Quinlan Paul T | General Counsel | Sell | 2,900 | 92.37 | 267,870 |
| Sep 21, 2026 | Quinlan Paul T | General Counsel | Other | 10,000 | 7.80 | 78,000 |
| Sep 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 947 | 95.71 | 90,637 |
| Sep 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 100 | 94.22 | 9,422 |
| Sep 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 1,366 | 92.99 | 127,023 |
| Sep 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 3,150 | 92.03 | 289,890 |
| Sep 15, 2026 | Goncalves Joana | Chief Medical Officer | Sell | 2,384 | 91.10 | 217,173 |
| Sep 15, 2026 | Goncalves Joana | Chief Medical Officer | Other | 3,500 | 7.80 | 27,300 |
| Sep 15, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 560 | 95.71 | 53,598 |
| Sep 15, 2026 | Klein Lawrence Otto | Chief Executive Officer | Sell | 2,452 | 95.71 | 234,681 |
| Sep 15, 2026 | Quinlan Paul T | General Counsel | Sell | 1,039 | 95.71 | 99,443 |
| Sep 15, 2026 | Sandler Laura Lee | Chief Operating Officer | Sell | 906 | 95.71 | 86,713 |
| Sep 11, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 200 | 94.02 | 18,803 |
| Sep 11, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 2,208 | 93.26 | 205,921 |
| Sep 11, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 4,051 | 92.41 | 374,367 |
| Sep 11, 2026 | Agarwal Arjun | Senior Vice President, Finance | Sell | 3,000 | 91.11 | 273,322 |
| Sep 11, 2026 | Agarwal Arjun | Senior Vice President, Finance | Other | 1,459 | 34.39 | 50,175 |
| Sep 11, 2026 | Agarwal Arjun | Senior Vice President, Finance | Other | 8,000 | 12.50 | 100,000 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 6, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.