Form DEFA14A SLR Investment Corp.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

SLR Investment Corp.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

Be th e vote th at cou n ts. SLR N VESTM EN T CORP. 2026 Annu ai M eetl ng

N ovember 1 8, 2026 VOTE N OW Wh y Sh ou l d I Vote? As an E n vestor E n th E s secu rE ty& you have th e rE gh t to vote on E rrportan t rratters! Th E s E s you r opportu n E ty to rrake a d E rect E rrpact on you r E n vestrren t! You r vote cou n ts! Ways to Vote ProxyVote 800. 690. 6903 Vi rtu al M eeti n g Importan t I n formati on For hol ders as of Septerrber 24& 2026 [GRAPHIC APPEARS HERE]Vote Common Sh ares by: N overrber 1 7& 2026 Control N umber: 01 2345678901 2345 Th i s emai l represen ts th e fol l owi n g sh are(s): SLR N VESTM EN T CORP! -COMMON 1 23& 456& 789& 01 2! 00000 SLR N VESTM EN T CORP! 1 23& 456& 789& 01 2! 00000 SLR N VESTM EN T CORP! 1 23& 456& 789& 01 2! 00000 SLR N VESTM EN T CORP! 1 23& 456& 789& 01 2! 00000 SLR N VESTM EN T CORP! 1 23& 456& 789& 01 2! 00000 SLR N VESTM EN T CORP! 1 23& 456& 789& 01 2! 00000

Vi ew docu men ts: Proxy Statemen t 1 0-K Report © 2026 Broadri dge F i rarci a Sol u ti ors 5 rc. P. O. Box 1 31 0< Brertwood< N Y 1 1 71 7 ProxyVote ard Broadri dge are trademarks of Broadri dge F i rarci al Sol u ti ors 5 rc. CU S 5 P i s a regi stered trademark of tre Ameri car Barkers Associ ati or . Al l otrer regi stered marks bel org to trei r respecti ive owrers. E mai l Setti rgs N Terms ard Cordi ti ors N Pri ivacy Statemert