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Nasdaq · USD

ORKA

Oruka Therapeutics, Inc.

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Tapewire entity
3781
SEC CIK
0000907654
Parsed reports
188

Last 12 months

Inside the activity.

0 purchase rows · 112 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202504
Jan 202605
Feb 202602
Mar 2026010
Apr 202603
May 2026016
Jun 2026015
Jul 2026012
Aug 2026015
Sep 2026023
Oct 202607

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
July 01, 2026 Filed Jul 1, 2026 23:58 UTC
Sandler Laura LeeChief Operating Officer
SaleCommon Stock 2,263 $94.75 $214,409.75
Disclosure

SEC source: 0000907654-26-000069 · form4.xml · nonDerivative · entry 3

Sandler Laura Lee · CIK 0002075401 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 236,884

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into on September 19, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.38 to $95.19, inclusive.

Read SEC document
July 01, 2026 Filed Jul 1, 2026 23:58 UTC
Sandler Laura LeeChief Operating Officer
SaleCommon Stock 2,237 $93.85 $209,932.83
Disclosure

SEC source: 0000907654-26-000069 · form4.xml · nonDerivative · entry 2

Sandler Laura Lee · CIK 0002075401 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 239,147

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into on September 19, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.29 to $94.26, inclusive. The reporting person undertakes to provide to Oruka Therapeutics, Inc., any security holder of Oruka Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3) and (4) to this Form 4.

Read SEC document
July 01, 2026 Filed Jul 1, 2026 23:58 UTC
Sandler Laura LeeChief Operating Officer
Exercise / conversionCommon Stock 5,000 $7.80 $39,000.00
Disclosure

SEC source: 0000907654-26-000069 · form4.xml · nonDerivative · entry 1

Sandler Laura Lee · CIK 0002075401 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 241,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
June 22, 2026 Filed Jun 22, 2026 23:59 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 699 $82.15 $57,419.36
Disclosure

SEC source: 0000907654-26-000066 · form4.xml · nonDerivative · entry 2

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,312

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

Read SEC document
June 22, 2026 Filed Jun 22, 2026 23:59 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 888 $80.01 $71,048.88
Disclosure

SEC source: 0000907654-26-000066 · form4.xml · nonDerivative · entry 1

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,011

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 395 $69.69 $27,527.55
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · nonDerivative · entry 6

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,899

F6 · kind: The reported sales were effected pursuant to Oruka Therapeutics, Inc.'s automatic, non-discretionary, sell-to-cover procedure to satisfy tax withholding obligations arising in connection with the vesting of restricted stock units.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
Exercise / conversionEmployee Warrant (right to buy) · Derivative 3,500 $0.00 Strike: $7.80 $0.00
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · derivative · entry 8

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 175,492

Underlying: Common Stock · 3,500 shares

Expires 2034-07-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The warrant vests as to 1/4 of the underlying shares on April 18, 2025 and as to 1/48 of the underlying shares monthly from April 18, 2025.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 3,500 $0.00 Strike: $6.84 $0.00
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · derivative · entry 7

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 204,063

Underlying: Common Stock · 3,500 shares

Expires 2034-05-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: The option vests as to 1/4 of the underlying shares on April 18, 2025 and as to 1/48 of the underlying shares monthly from April 18, 2025.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
SaleCommon Stock 947 $69.69 $65,996.43
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · nonDerivative · entry 6

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,718

F6 · kind: These sales were effected pursuant to Oruka Therapeutics, Inc.'s automatic, non-discretionary, sell-to-cover procedure to satisfy tax withholding obligations arising in connection with the vesting of restricted stock units.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
SaleCommon Stock 300 $70.62 $21,186.99
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · nonDerivative · entry 5

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,665

F2 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on September 19, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.29 to $70.79, inclusive.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
SaleCommon Stock 5,064 $69.42 $351,547.44
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · nonDerivative · entry 4

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,965

F2 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on September 19, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.98 to $69.83, inclusive.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
SaleCommon Stock 1,636 $68.38 $111,876.06
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · nonDerivative · entry 3

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,029

F2 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on September 19, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.97 to $68.96, inclusive. The reporting person undertakes to provide to Oruka Therapeutics, Inc., any security holder of Oruka Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4) and (5) to this Form 4.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
Exercise / conversionCommon Stock 3,500 $7.80 $27,300.00
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · nonDerivative · entry 2

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,665

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:54 UTC
Goncalves JoanaChief Medical Officer
Exercise / conversionCommon Stock 3,500 $6.84 $23,940.00
Disclosure

SEC source: 0000907654-26-000063 · form4.xml · nonDerivative · entry 1

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,165

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 288 shares acquired under the Oruka Therapeutics, Inc. stock purchase plan on June 8, 2026.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:52 UTC
Klein Lawrence OttoDirector · Chief Executive Officer
SaleCommon Stock 1,729 $69.69 $120,494.01
Disclosure

SEC source: 0000907654-26-000062 · form4.xml · nonDerivative · entry 1

Klein Lawrence Otto · CIK 0001762583 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 925,580

F1 · kind: The reported sales were effected pursuant to Oruka Therapeutics, Inc.'s automatic, non-discretionary, sell-to-cover procedure to satisfy tax withholding obligations arising in connection with the vesting of restricted stock units.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:51 UTC
Sandler Laura LeeChief Operating Officer
SaleCommon Stock 600 $69.69 $41,814.00
Disclosure

SEC source: 0000907654-26-000061 · form4.xml · nonDerivative · entry 1

Sandler Laura Lee · CIK 0002075401 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 236,384

F1 · kind: The reported sales were effected pursuant to Oruka Therapeutics, Inc.'s automatic, non-discretionary, sell-to-cover procedure to satisfy tax withholding obligations arising in connection with the vesting of restricted stock units.

Read SEC document
June 15, 2026 Filed Jun 15, 2026 22:50 UTC
Quinlan Paul TGeneral Counsel
SaleCommon Stock 733 $69.69 $51,082.77
Disclosure

SEC source: 0000907654-26-000060 · form4.xml · nonDerivative · entry 1

Quinlan Paul T · CIK 0001333277 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,034

F1 · kind: The reported sales were effected pursuant to Oruka Therapeutics, Inc.'s automatic, non-discretionary, sell-to-cover procedure to satisfy tax withholding obligations arising in connection with the vesting of restricted stock units.

Read SEC document
June 12, 2026 Filed Jun 12, 2026 20:36 UTC SaleCommon Stock 12,583 $70.11 $882,181.55
Disclosure

SEC source: 0000907654-26-000054 · form4.xml · nonDerivative · entry 2

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,743

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 19, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.00 to $70.50, inclusive.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 1,459 $0.00 Strike: $34.39 $0.00
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · derivative · entry 8

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,708

Underlying: Common Stock · 1,459 shares

Expires 2036-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option vests as to 1/48 of the underlying shares monthly from January 1, 2026.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 8,000 $0.00 Strike: $12.50 $0.00
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · derivative · entry 7

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 110,000

Underlying: Common Stock · 8,000 shares

Expires 2035-01-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: The option vests as to 1/48 of the underlying shares monthly from January 1, 2025.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 3,260 $70.34 $229,305.79
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · nonDerivative · entry 5

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,294

F2 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.07 to $70.86, inclusive.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 4,340 $69.85 $303,154.21
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · nonDerivative · entry 4

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,554

F2 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.07 to $70.06, inclusive.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 1,859 $68.34 $127,047.59
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · nonDerivative · entry 3

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,894

F2 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.87 to $68.71, inclusive. The reporting person undertakes to provide to Oruka Therapeutics, Inc., any security holder of Oruka Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4) and (5) to this Form 4.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionCommon Stock 1,459 $34.39 $50,175.01
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · nonDerivative · entry 2

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,753

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 22:57 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionCommon Stock 8,000 $12.50 $100,000.00
Disclosure

SEC source: 0000907654-26-000064 · form4.xml · nonDerivative · entry 1

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,294

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 888 shares acquired under the Oruka Therapeutics, Inc. stock purchase plan on June 8, 2026.

Read SEC document
June 11, 2026 Filed Jun 12, 2026 20:36 UTC SaleCommon Stock 22,417 $70.13 $1,572,200.60
Disclosure

SEC source: 0000907654-26-000054 · form4.xml · nonDerivative · entry 1

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,326

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 19, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.00 to $70.65, inclusive. The reporting person undertakes to provide to Oruka Therapeutics, Inc., any security holder of Oruka Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.

Read SEC document
June 02, 2026 Filed Jun 3, 2026 20:52 UTC GrantStock Option (right to buy) · Derivative 9,136 $0.00 Strike: $55.23 $0.00
Disclosure

SEC source: 0000907654-26-000052 · form4.xml · derivative · entry 1

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,136

Underlying: Common Stock · 9,136 shares

Expires 2036-06-01

F1 · derivative.exercise_date: The option vests as to 1/12 of the underlying shares monthly from June 2, 2026.

Read SEC document
June 02, 2026 Filed Jun 3, 2026 20:50 UTC GrantStock Option (right to buy) · Derivative 9,136 $0.00 Strike: $55.23 $0.00
Disclosure

SEC source: 0000907654-26-000051 · form4.xml · derivative · entry 1

Kulkarni Samarth · CIK 0001682019 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,136

Underlying: Common Stock · 9,136 shares

Expires 2036-06-01

F1 · derivative.exercise_date: The option vests as to 1/12 of the underlying shares monthly from June 2, 2026.

Read SEC document
June 02, 2026 Filed Jun 3, 2026 20:49 UTC GrantStock Option (right to buy) · Derivative 9,136 $0.00 Strike: $55.23 $0.00
Disclosure

SEC source: 0000907654-26-000050 · form4.xml · derivative · entry 1

Martin Christopher Nathan · CIK 0002097992 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,136

Underlying: Common Stock · 9,136 shares

Expires 2036-06-01

F1 · derivative.exercise_date: The option vests as to 1/12 of the underlying shares monthly from June 2, 2026.

Read SEC document
June 02, 2026 Filed Jun 3, 2026 20:48 UTC GrantStock Option (right to buy) · Derivative 9,136 $0.00 Strike: $55.23 $0.00
Disclosure

SEC source: 0000907654-26-000049 · form4.xml · derivative · entry 1

BALL KRISTINE M · CIK 0001266163 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,136

Underlying: Common Stock · 9,136 shares

Expires 2036-06-01

F1 · derivative.exercise_date: The option vests as to 1/12 of the underlying shares monthly from June 2, 2026.

Read SEC document
June 02, 2026 Filed Jun 3, 2026 20:45 UTC
Fairmount Funds Management LLCDirector · 10% owner
Harwin Peter EvanDirector · 10% owner
Kiselak TomasDirector · 10% owner
GrantStock Option (Right to Buy) · Derivative 9,136 $0.00 Strike: $55.23 $0.00
Disclosure

SEC source: 0001104659-26-070135 · tm2616798-1_4seq1.xml · derivative · entry 1

Fairmount Funds Management LLC · CIK 0001802528 · Director · 10% owner

Fairmount Healthcare Fund II L.P. · CIK 0001769651 · Director · 10% owner

Fairmount Healthcare Co-Invest III L.P. · CIK 0002009690 · Director

Harwin Peter Evan · CIK 0001663607 · Director · 10% owner

Kiselak Tomas · CIK 0001830177 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Peter Harwin

Disclosed balance after: 9,136

Underlying: Common Stock · 9,136 shares

Expires 2036-06-01

F1 · derivative.exercise_date: This option represents a right to purchase 9,136 shares of the Issuer's common stock, which vests as to 1/12 of the option monthly from June 2, 2026, subject to the recipient's continued service to the Issuer.

F2 · ownership.direct: Fairmount Funds Management LLC ("Fairmount") is the investment manager for Fairmount Healthcare Fund II LP ("Fund II") and Fairmount Healthcare Co-Invest III L.P. ("Co-Invest"). Peter Harwin and Tomas Kiselak are the managers of Fairmount. Under Mr. Harwin's arrangement with Fairmount, Mr. Harwin holds the option for one or more investment vehicles managed by Fairmount (each, a "Fairmount Fund"). Mr. Harwin is obligated to turn over to Fairmount any net cash or stock received from the option for the benefit of such Fairmount Fund. Fairmount, Mr. Harwin, and Mr. Kiselak disclaim beneficial ownership of any of the reported securities, except to the extent of their pecuniary interest therein.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:54 UTC Exercise / conversionStock Option (right to buy) · Derivative 11,667 $0.00 Strike: $11.77 $0.00
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · derivative · entry 9

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,833

Underlying: Common Stock · 11,667 shares

Expires 2035-06-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: The option vests as to 1/12 of the shares underlying the option monthly from June 2, 2025.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:54 UTC Exercise / conversionWarrant (right to buy) · Derivative 11,904 $0.00 Strike: $7.80 $0.00
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · derivative · entry 8

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,952

Underlying: Common Stock · 11,904 shares

Expires 2034-07-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: The option vests as to 25% of the shares underlying the option on April 3, 2025, and as to 1/48 of the shares underlying the option monthly thereafter.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:54 UTC Exercise / conversionStock Option (right to buy) · Derivative 38,689 $0.00 Strike: $6.84 $0.00
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · derivative · entry 7

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,737

Underlying: Common Stock · 38,689 shares

Expires 2034-05-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The option vests as to 25% of the shares underlying the option on March 1, 2025, and as to 1/48 of the shares underlying the option monthly thereafter.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:54 UTC SaleCommon Stock 13,235 $59.97 $793,661.92
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · nonDerivative · entry 6

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,743

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 19, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.71 to $60.31, inclusive.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:54 UTC SaleCommon Stock 53,447 $59.10 $3,158,910.11
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · nonDerivative · entry 5

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 86,978

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 19, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.71 to $59.70, inclusive.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:54 UTC SaleCommon Stock 38,318 $58.43 $2,238,794.29
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · nonDerivative · entry 4

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 140,425

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 19, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.71 to $58.70, inclusive. The reporting person undertakes to provide to Oruka Therapeutics, Inc., any security holder of Oruka Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3) and (4) to this Form 4.

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May 21, 2026 Filed May 22, 2026 20:54 UTC Exercise / conversionCommon Stock 11,667 $11.77 $137,320.59
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · nonDerivative · entry 3

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 178,743

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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May 21, 2026 Filed May 22, 2026 20:54 UTC Exercise / conversionCommon Stock 11,904 $7.80 $92,851.20
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · nonDerivative · entry 2

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 167,076

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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May 21, 2026 Filed May 22, 2026 20:54 UTC Exercise / conversionCommon Stock 38,689 $6.84 $264,632.76
Disclosure

SEC source: 0000907654-26-000043 · form4.xml · nonDerivative · entry 1

Dambkowski Carl · CIK 0001983476 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 155,172

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 5,833 $0.00 Strike: $34.39 $0.00
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · derivative · entry 8

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,167

Underlying: Common Stock · 5,833 shares

Expires 2036-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: The option vests as to 1/48 of the underlying shares monthly from January 1, 2026.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 2,000 $0.00 Strike: $12.50 $0.00
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · derivative · entry 7

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,000

Underlying: Common Stock · 2,000 shares

Expires 2035-01-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: The option vests as to 1/48 of the underlying shares monthly from January 1, 2025.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 700 $61.16 $42,812.42
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · nonDerivative · entry 6

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,406

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.82 to $61.76, inclusive.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 800 $60.34 $48,269.12
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · nonDerivative · entry 5

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,106

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.78 to $60.72, inclusive.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 4,600 $59.19 $272,259.74
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · nonDerivative · entry 4

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,906

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.76 to $59.75, inclusive.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
SaleCommon Stock 4,190 $58.34 $244,465.13
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · nonDerivative · entry 3

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,506

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.72 to $58.71, inclusive. The reporting person undertakes to provide to Oruka Therapeutics, Inc., any security holder of Oruka Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3), (4) and (5) to this Form 4.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionCommon Stock 5,833 $34.39 $200,596.87
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · nonDerivative · entry 2

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,696

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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May 18, 2026 Filed May 18, 2026 22:07 UTC
Agarwal ArjunSenior Vice President, Finance
Exercise / conversionCommon Stock 2,000 $12.50 $25,000.00
Disclosure

SEC source: 0000907654-26-000041 · form4.xml · nonDerivative · entry 1

Agarwal Arjun · CIK 0002033974 · Senior Vice President, Finance

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,863

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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May 15, 2026 Filed May 16, 2026 00:17 UTC
Goncalves JoanaChief Medical Officer
Exercise / conversionEmployee Warrant (right to buy) · Derivative 3,500 $0.00 Strike: $7.80 $0.00
Disclosure

SEC source: 0000907654-26-000039 · form4.xml · derivative · entry 7

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 178,992

Underlying: Common Stock · 3,500 shares

Expires 2034-07-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The warrant vests as to 1/4 of the underlying shares on April 18, 2025 and as to 1/48 of the underlying shares monthly from April 18, 2025.

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May 15, 2026 Filed May 16, 2026 00:17 UTC
Goncalves JoanaChief Medical Officer
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 3,500 $0.00 Strike: $6.84 $0.00
Disclosure

SEC source: 0000907654-26-000039 · form4.xml · derivative · entry 6

Goncalves Joana · CIK 0001756991 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 207,563

Underlying: Common Stock · 3,500 shares

Expires 2034-05-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option vests as to 1/4 of the underlying shares on April 18, 2025 and as to 1/48 of the underlying shares monthly from April 18, 2025.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.