Company: WHWK
Filing Date: 2025-04-25
Form Type: 424B5
Source: 0001193125-25-097064
Chunk: 29

Company: Whitehawk Therapeutics, Inc.
Filing Date: 2025-04-25
Form: 424B5
Chunk 29
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us and any related free writing prospectuses related to the debt securities that we may offer under this prospectus, as well as the complete applicable indenture that contains the terms of the debt securities. Except as we may otherwise indicate, the terms of the senior indenture and the subordinated indenture are identical. General We will describe in the applicable prospectus supplement or free writing prospectus the terms of the series of debt securities being offered, including:

| • |     | the title; |

| • |     | the principal amount being offered, and if a series, the total amount authorized and the total amount 
 outstanding;                                                                                          |

| • |     | any limit on the amount that may be issued; |

| • |     | whether or not we will issue the series of debt securities in global form, and, if so, the terms and who the 
 depository will be;                                                                                          |

| • |     | the maturity date; |

| • |     | whether and under what circumstances, if any, we will pay additional amounts on any debt securities held by a                                       
 person who is not a United States person for tax purposes, and whether we can redeem the debt securities if we have to pay such additional amounts; |

| • |     | the annual interest rate, which may be fixed or variable, or the method for determining the rate and the date                                                       
 interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates; |

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| • |     | whether or not the debt securities will be secured or unsecured, and the terms of any secured debt; |

| • |     | the terms of the subordination of any series of subordinated debt; |

| • |     | the place where payments will be payable; |

| • |     | restrictions on transfer, sale or other assignment, if any; |

| • |     | our right, if any, to defer payment of interest and the maximum length of any such deferral period; |

| • |     | the date, if any, after which, the conditions upon which, and the price at which, we may, at our option, redeem                           
 the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions; |

| • |     | the date, if any, on which, and the price at which we are obligated, pursuant to any mandatory sinking fund or                                                                                       
 analogous fund provisions