Company: SWKH
Filing Date: 2025-10-10
Form Type: 425
Source: 0001193125-25-237227
Chunk: 1

Company: SWK Holdings Corp
Filing Date: 2025-10-10
Form: 425
Chunk 1
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405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). Emerging growth company ☒ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events. On October 9, 2025, Runway Growth Finance Corp. (“RWAY”) and SWK Holdings Corporation (“SWK”) issued a joint press release announcing the entry into a definitive merger agreement under which (i) RWAY Portfolio Corp., a Delaware corporation and an indirect wholly-owned subsidiary of RWAY, (“Acquisition Sub”) will merge with and into SWK, with SWK continuing as the surviving company and as a wholly-owned subsidiary of RWAY Portfolio Holding Corp., a Delaware corporation and an indirect wholly-owned subsidiary of RWAY (“Intermediary Sub”), or, in the alternative, SWK will merge with and into Acquisition Sub, with Acquisition Sub continuing as the surviving company and as a wholly-owned subsidiary of Intermediary Sub (in either case, the “First Merger”), (ii) immediately after the effectiveness of the First Merger, SWK or Acquisition Sub, as applicable, will merge with and into Intermediary Sub, with Intermediary Sub continuing as the surviving company and as a wholly-owned subsidiary of RWAY (the “Second Merger”), and (iii) immediately after effectiveness of the Second Merger, Intermediary Sub will merge with and into RWAY, with RWAY continuing as the surviving corporation. A copy of the joint press release is furnished as Exhibit 99.1 to this report and is incorporated herein by reference. Item 9.01 Financial Statements and Exhibits.

| Exhibit Number 
 99.1           |     | Description                                                                                                   
 Joint Press Release of Runway Growth Finance Corp. and SWK Holdings Corporation, dated as of October 9, 2025. |
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| 104            |     | Cover Page Interactive Data File (embedded within the Inline XBRL document)                                   |

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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