X0202 SCHEDULE 13D/A 0001056973 XXXXXXXX LIVE 17 Common Stock, par value $0.001 per share 04/06/2026 false 0001089907 78501P203 SWK HOLDINGS CORPORATION

5956 Sherry Lane Suite 650 Dallas TX 75225

Carlson Capital, L.P. (214) 932-9600 Attn: Rahim Ibrahim 2100 McKinney Avenue Dallas TX 75201 0001404976 N Double Black Diamond Offshore Ltd. WC N E9 0 0 0 0 0 N 0 CO 0001056973 N Carlson Capital, L.P. AF N DE 0 0 0 0 0 N 0 PN IA 0001503915 N Asgard Investment Corp. II AF N DE 0 0 0 0 0 N 0 CO 0001404557 N Asgard Investment Corp. AF N DE 0 0 0 0 0 N 0 CO Y Clint D. Carlson AF N X1 0 0 0 0 0 N 0 IN Common Stock, par value $0.001 per share SWK HOLDINGS CORPORATION 5956 Sherry Lane Suite 650 Dallas TX 75225 Explanatory Note This Amendment No. 17 ("Amendment No. 17") amends and supplements the statement on Schedule 13D filed with the Securities and Exchange Commission (the "SEC") on November 4, 2009 (the "Original Schedule 13D"), as amended by Amendment No. 1 to the Original Schedule 13D filed with the SEC on November 25, 2009 ("Amendment No. 1"), and as further amended by Amendment No. 2 to the Original Schedule 13D filed with the SEC on March 1, 2012 ("Amendment No. 2"), and as further amended by Amendment No. 3 to the Original Schedule 13D filed with the SEC on September 9, 2013 ("Amendment No. 3"), and as further amended by Amendment No. 4 to the Original Schedule 13D filed with the SEC on May 16, 2014 ("Amendment No. 4"), and as further amended by Amendment No. 5 to the Original Scheduled 13D filed with the SEC on June 23, 2014 ("Amendment No. 5"), and as further amended by Amendment No. 6 to the Original Schedule 13D filed with the SEC on July 16, 2014 ("Amendment No. 6"), and as further amended by Amendment No. 7 to the Original Schedule 13D filed with the SEC on August 19, 2014 ("Amendment No. 7"), and as further amended by Amendment No. 8 to the Original Schedule 13D filed with the SEC on December 8, 2014 ("Amendment No. 8"), and as further amended by Amendment No. 9 to the Original Schedule 13D filed with the SEC on March 30, 2018 ("Amendment No. 9), and as further amended by Amendment No. 10 to the Original Schedule 13D filed with the SEC on April 6, 2021 ("Amendment No. 10"), and as further amended by Amendment No. 11 to the Original Schedule 13D filed with the SEC on May 18, 2021 ("Amendment No. 11"), and as further amended by Amendment No. 12 to the Original Schedule 13D filed with the SEC on November 12, 2021 ("Amendment No. 12"), and as further amended by Amendment No. 13 to the Original Schedule 13D filed with the SEC on November 23, 2021 ("Amendment No. 13") and as further amended by Amendment No. 14 to the Original Schedule 13D filed with the SEC on December 28, 2021 ("Amendment No. 14"), and as further amended by Amendment No. 15 to the Original Schedule 13D filed with the SEC on January 7, 2022 ("Amendment No. 15"), and as further amended by Amendment No. 16 to the Original Schedule 13D filed with the SEC on October 23, 2024 ("Amendment No. 16, and together with the Original Schedule 13D, Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment No. 7, Amendment No. 8, Amendment No. 9, Amendment No. 10, Amendment No. 11, Amendment No. 12, Amendment No. 13, Amendment No. 14, Amendment No. 15, Amendment No. 16 and this Amendment No. 17, the "Schedule 13D"), with respect to the shares of common stock ("Shares"), par value $0.001 per share, of SWK Holdings Corporation (the "Issuer"). Capitalized terms used herein and not otherwise defined in this Amendment No. 17 have the meanings set forth in the Schedule 13D. This Amendment No. 17 amends Items 4, 5 and 6 as set forth below. The information previously provided in response to Item 4 is hereby amended and supplemented by adding the following information: On April 6, 2026, pursuant to the Agreement and Plan of Merger dated as of October 9, 2025 (the "Merger Agreement"), Runway Growth Finance Corp. ("Parent"), RWAY Portfolio Holding Corp., RWAY Portfolio Corp. ("Acquisition Sub"), Runway Growth Capital LLC ("Adviser") and SWK Holdings Corporation ("SWK") effected a merger pursuant to which SWK was merged with and into Acquisition Sub (the "First Merger"). Pursuant to the Merger Agreement, upon completion of the First Merger (the "Effective Time"), each issued and outstanding common stock of SWK ("SWK Common Stock") was cancelled and converted into the right to receive (i) either (A) 1.7264 shares of common stock, par value $0.01 per share, of Parent ("Parent Common Stock" and such consideration, the "Per Share Stock Consideration") or (B) $20.59 in cash (the "Per Share Cash Consideration") (in each case, based on the election of the holder thereof in accordance with the terms of the Merger Agreement and subject to proration as provided therein) plus (ii) $0.74 in cash, which represents a pro rata share of the guaranteed cash payment paid by the Adviser (the "Per Share Guaranteed Cash Payment" and collectively with the Per Share Stock Consideration and the Per Share Cash Consideration, the "Total Per Share Consideration"). As a result, the Reporting Persons no longer beneficially own any shares of the Issuer. Pursuant to the closing of the merger described in Item 4, the Reporting Persons beneficially owned an aggregate of 0 Shares, constituting approximately 0% of the Shares outstanding. The aggregate percentage of Shares reported in this Amendment No. 17 are based on an aggregate number of 12,095, 906 Shares outstanding as of March 2, 2026, as reported in the Issuer's 8-K filed with the SEC on March 3, 2026. No transactions were effected by the Reporting Persons in the Shares since the filing of Amendment No. 16. The information previously provided in response to Item 6 is hereby amended and supplemented by adding the following information: Item 4 of this Amendment No. 17 is hereby incorporated by reference. Double Black Diamond Offshore Ltd. /s/ Clint D. Carlson 04/08/2026 Carlson Capital, L.P. /s/ Clint D. Carlson 04/08/2026 Asgard Investment Corp. II /s/ Clint D. Carlson 04/08/2026 Asgard Investment Corp. /s/ Clint D. Carlson 04/08/2026 Clint D. Carlson /s/ Clint D. Carlson 04/08/2026