<SEC-DOCUMENT>0001558370-24-004574.txt : 20240402
<SEC-HEADER>0001558370-24-004574.hdr.sgml : 20240402
<ACCEPTANCE-DATETIME>20240402083009
ACCESSION NUMBER:		0001558370-24-004574
CONFORMED SUBMISSION TYPE:	NT 10-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20231231
FILED AS OF DATE:		20240402
DATE AS OF CHANGE:		20240402
EFFECTIVENESS DATE:		20240402

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Direct Digital Holdings, Inc.
		CENTRAL INDEX KEY:			0001880613
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING [7310]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				872306185
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NT 10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41261
		FILM NUMBER:		24812306

	BUSINESS ADDRESS:	
		STREET 1:		1177 WEST LOOP SOUTH
		STREET 2:		SUITE 1310
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027
		BUSINESS PHONE:		832-402-1051

	MAIL ADDRESS:	
		STREET 1:		1177 WEST LOOP SOUTH
		STREET 2:		SUITE 1310
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027
</SEC-HEADER>
<DOCUMENT>
<TYPE>NT 10-K
<SEQUENCE>1
<FILENAME>tmb-20231231xnt10k.htm
<DESCRIPTION>NT 10-K
<TEXT>
<!--Enhanced HTML document created with Toppan Merrill Bridge  10.5.122.0--><!--Created on: 4/2/2024 07:35:22 AM (UTC)--><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta charset="UTF-8"><title></title></head><body><div style="margin-top:30pt;"></div><div style="max-width:100%;padding-left:5.88%;padding-right:5.88%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 2pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:8pt 0pt 0pt 0pt;"><b style="color:#231f20;font-weight:bold;">UNITED STATES</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0.5pt 149.7pt 0pt 151.95pt;"><b style="color:#231f20;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0.5pt 149.75pt 12pt 151.9pt;"><b style="color:#231f20;font-weight:bold;">Washington, D.C. 20549</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">FORM 12b-25</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0.44pt 0pt 12pt 0pt;"><font style="font-family:'Calibri','Helvetica','sans-serif';font-size:12.5pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 0pt 12pt 0pt;"><b style="color:#231f20;font-weight:bold;">NOTIFICATION OF LATE FILING</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.37;padding-left:74.75pt;text-align:center;text-indent:-74.75pt;margin:0.05pt 1.5pt 12pt 72pt;"><font 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Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></div></div></td><td style="vertical-align:top;width:11.42%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></div></div></td></tr><tr><td style="vertical-align:top;width:11.92%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><i style="color:#231f20;font-style:italic;">(Check one):</i></p></td><td style="vertical-align:top;width:3.4%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">x</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:11.07%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Form</font><font style="color:#231f20;letter-spacing:-0.1pt;"> </font><font style="color:#231f20;">10-K</font></p></td><td style="vertical-align:top;width:3.4%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td colspan="2" style="vertical-align:top;width:10.22%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Form</font><font style="color:#231f20;letter-spacing:-0.1pt;"> </font><font style="color:#231f20;">20-F</font></p></td><td style="vertical-align:top;width:4.25%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:11.07%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Form</font><font style="color:#231f20;letter-spacing:-0.25pt;"> </font><font style="color:#231f20;">11-K</font></p></td><td style="vertical-align:top;width:3.4%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:11.07%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Form</font><font style="color:#231f20;letter-spacing:-0.05pt;"> </font><font style="color:#231f20;">10-Q</font></p></td><td style="vertical-align:top;width:3.4%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="color:#231f20;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:11.07%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Form</font><font style="color:#231f20;letter-spacing:-0.1pt;"> </font><font style="color:#231f20;">10-D</font></p></td><td style="vertical-align:top;width:4.25%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New 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style="vertical-align:top;width:84.66%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Form</font><font style="color:#231f20;letter-spacing:-0.1pt;"> </font><font style="color:#231f20;">N-CSR</font></p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="color:#231f20;">For Period</font><font style="color:#231f20;letter-spacing:-0.45pt;"> </font><font style="color:#231f20;">Ended: </font><u style="color:#231f20;text-decoration-color:#221e1f;text-decoration-line:underline;text-decoration-style:solid;"> December 31, 2023</u></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="color:#231f20;text-decoration-color:#221e1f;text-decoration-line:underline;text-decoration-style:solid;visibility:hidden;">&#8203;</font></p><div><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;width:33.34%;" align="center"><tr style="height:1pt;"><td style="vertical-align:top;width:12.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></div></div></td><td style="vertical-align:top;width:87.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></div></div></td></tr><tr><td style="vertical-align:top;width:12.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:87.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Transition Report on Form 10-K</font></p></td></tr><tr><td style="vertical-align:top;width:12.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:87.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Transition Report on Form 20-F</font></p></td></tr><tr><td style="vertical-align:top;width:12.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:87.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Transition Report on Form 11-K</font></p></td></tr><tr><td style="vertical-align:top;width:12.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:87.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Transition Report on Form 10-Q</font></p></td></tr><tr><td style="vertical-align:top;width:12.38%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"><font style="font-family:'Wingdings';">o</font><font style="visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:87.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="color:#231f20;">Transition Report on Form N-SAR</font></p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:10.4pt;text-align:center;text-indent:36pt;margin:0pt 0pt 12pt 0pt;"><font style="color:#231f20;">For the Transition Period</font><font style="color:#231f20;letter-spacing:-1.3pt;"> </font><font style="color:#231f20;">Ended:</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:10.4pt;text-indent:0pt;margin:0pt 0pt 12pt 0pt;"><font style="color:#231f20;font-size:10.4pt;text-decoration-color:#221e1f;text-decoration-line:underline;text-decoration-style:solid;visibility:hidden;">&#8203;</font></p><div><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;width:100%;" align="center"><tr style="height:1pt;"><td style="vertical-align:top;width:100%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:1pt;visibility:hidden;">&#8203;</font></p></div></div></td></tr><tr><td style="vertical-align:top;width:100%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:5.84pt 2.9pt 0pt 3pt;"><i style="color:#231f20;font-style:italic;">Read Instruction (on back page) Before Preparing Form. Please Print or Type.</i></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0.5pt 3.05pt 0pt 3pt;"><b style="color:#231f20;font-weight:bold;">Nothing in this form shall be construed to imply that the Commission has veri&#64257;ed any information contained herein.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:6pt 0pt 0pt 0pt;"><font style="color:#231f20;font-size:1pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:6pt 0pt 0pt 0pt;"><font style="color:#231f20;">If the noti&#64257;cation relates to a portion of the &#64257;ling checked above, identify the Item(s) to which the noti&#64257;cation relates:</font></p><div style="font-family:'Times New Roman','Times','serif';font-size:8.0pt;margin-bottom:12pt;margin-left:0pt;margin-top:0.44pt;min-height:1.19em;position:relative;width:100%;"><hr color="#a0a0a0" size="1.5" style="height:1.5pt;position:relative;top:0.6em;margin:0 auto;" align="center"></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:11pt;visibility:hidden;">&#8203;</font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:5.88%;margin-right:5.88%;margin-top:30pt;page-break-after:always;width:88.24%;border-width:0;"><div style="max-width:100%;padding-left:5.88%;padding-right:5.88%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:11pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 8.1pt;"><b style="color:#231f20;font-size:11pt;font-weight:bold;">PART I &#8212; REGISTRANT INFORMATION</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.25pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:14pt;font-weight:bold;">Direct Digital Holdings, Inc.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="color:#231f20;">Full Name of Registrant</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:14pt;font-weight:bold;">Not Applicable</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="color:#231f20;">Former Name if Applicable</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:12pt;font-weight:bold;">1177 West Loop South, Suite 1310</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:12pt;font-weight:bold;">Houston, Texas 77027</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="color:#231f20;">Address of Principal Executive Office (Street and Number)</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 0pt 0.05pt 0pt;"><font style="color:#231f20;">City, State and Zip Code</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><font style="font-size:9pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.15pt 8.1pt;"><b style="color:#231f20;font-size:11pt;font-weight:bold;">PART II &#8212; RULES 12b-25(b) AND (c)</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:9.5pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 8.05pt;"><font style="color:#231f20;">If the subject report could not be &#64257;led without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 8.05pt;"><font style="margin-left:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 8.05pt;"><font style="margin-left:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:11pt;visibility:hidden;">&#8203;</font></p><div align="left"><table style="border-collapse:collapse;font-size:16pt;height:max-content;padding-left:0.5pt;padding-right:0.5pt;width:94.52%;"><tr><td style="vertical-align:middle;width:10.71%;margin:0pt;padding:0pt 0.5pt 0pt 0.5pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><font style="font-family:'Times New Roman';">&#8999;</font></p></td><td style="vertical-align:top;width:89.28%;margin:0pt;padding:0pt 0.5pt 0pt 0.5pt;"><div border="0" cellpadding="0" cellspacing="0" style="display:table;"><div style="display:table-row;"><div style="display:table-cell;width:7.95pt;padding:0pt;"></div><div style="display:table-cell;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0.1pt;margin-top:0pt;"><font style="color:#231f20;">(a)</font></p></div><div style="display:table-cell;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0.1pt;margin-top:0pt;"><font style="color:#231f20;">The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense</font></p></div></div></div><div border="0" cellpadding="0" cellspacing="0" style="display:table;"><div style="display:table-row;"><div style="display:table-cell;width:7.95pt;padding:0pt;"></div><div style="display:table-cell;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0.15pt;margin-top:0pt;"><font style="color:#231f20;">(b)</font></p></div><div style="display:table-cell;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0.15pt;margin-top:0pt;"><font style="color:#231f20;">The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-CEN or Form N-CSR, or portion thereof, will be &#64257;led on or before the &#64257;fteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be &#64257;led on or before the &#64257;fth calendar day following the prescribed due date; and</font></p></div></div></div><div border="0" cellpadding="0" cellspacing="0" style="display:table;"><div style="display:table-row;"><div style="display:table-cell;width:7.95pt;padding:0pt;"></div><div style="display:table-cell;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;"><font style="color:#231f20;">(c)</font></p></div><div style="display:table-cell;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;"><font style="color:#231f20;">The accountant&#8217;s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.</font></p></div></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 2pt 0pt;"><font style="font-size:11pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 8.1pt;"><b style="color:#231f20;font-size:11pt;font-weight:bold;">PART III &#8212; NARRATIVE</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 5.59pt 0pt;"><font style="font-size:9pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 5.59pt 10.85pt;"><font style="color:#231f20;">State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-CEN, N-CSR, or the transition report or portion thereof, could not be &#64257;led within the prescribed time period.</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 5.59pt 0pt;">Direct Digital Holdings, Inc. (the &#8220;<b style="font-weight:bold;">Company</b>&#8221;) is unable to file its Annual Report on Form 10-K for the period ended December 31, 2023 within the prescribed time period without unreasonable effort and expense because extra time is needed for the Company&#8217;s independent auditors to complete their audit of the Company&#8217;s financial statements and issue their opinion. The Company will file the Form 10-K on or before April 17, 2024, the first business day following the fifteenth calendar day following the prescribed due date.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 0.75pt 0pt;">A letter from the Company&#8217;s independent registered public accounting firm, which is filed pursuant to Rule 12b-25(c) under the Securities Exchange Act of 1934, as amended, is attached as Exhibit 99.1 to this Form 12b-25.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.75pt 5.75pt;"><font style="font-size:11pt;margin-left:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.2pt 5.75pt;"><b style="color:#231f20;font-size:11pt;font-weight:bold;">PART IV &#8212; OTHER INFORMATION</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:10.5pt;visibility:hidden;">&#8203;</font></p><table border="0" cellpadding="0" cellspacing="0"><tr><td style="width:5.75pt;padding:0pt;"></td><td style="vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;"><font style="color:#231f20;">(1)</font></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;"><font style="color:#231f20;">Name and telephone number of person to contact in regard to this noti&#64257;cation</font></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.44pt 0pt;"><font style="display:inline-block;text-indent:0pt;width:23.8pt;"></font><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:12.2pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u></u><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:36pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u>Diana P. Diaz</u><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:16.18pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u></u><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:36pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u></u><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:36pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u></u><font style="display:inline-block;width:36pt;"></font><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:36pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u>(832)</u><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:14.34pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u></u><font style="display:inline-block;width:36pt;"></font><u style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;"><u style="display:inline-block;overflow:hidden;position:relative;text-align:justify;text-align-last:justify;text-decoration:underline;text-indent:0pt;vertical-align:bottom;white-space:normal;width:36pt;">&#8203; &#8203;<font style="display:inline-block;height:0pt;width:100%;"></font></u>402-1051</u></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.44pt 0pt;"><font style="display:inline-block;text-indent:0pt;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font>(Name)<font style="display:inline-block;width:5.46pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font>(Area Code)<font style="display:inline-block;width:22.3pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font>(Telephone Number)</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.4pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:18pt;text-indent:-18pt;margin:0pt 0pt 0.15pt 5.75pt;"><font style="display:inline-block;text-indent:0pt;width:18pt;"><font style="color:#231f20;font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">(2)</font></font><font style="color:#231f20;">Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to &#64257;le such report(s) been &#64257;led? If answer is no, identify report(s).</font><font style="display:inline-block;width:88.19pt;"></font><font style="color:#231f20;">Yes </font><font style="color:#231f20;font-family:'Times New Roman';">&#8999;</font><font style="display:inline-block;width:13.98pt;"></font><font style="color:#231f20;">No</font><font style="color:#231f20;font-family:'Times New Roman';">&#9723;</font></p><table border="0" cellpadding="0" cellspacing="0"><tr><td style="width:5.7pt;padding:0pt;"></td><td style="vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:1.29pt;margin-top:0pt;"><font style="color:#231f20;">(3)</font></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:1.29pt;margin-top:0pt;"><font style="color:#231f20;">Is it anticipated that any signi&#64257;cant change in results of operations from the corresponding period for the last &#64257;scal year will be re&#64258;ected by the earnings statements to be included in the subject report or portion thereof?</font></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.5pt 401.7pt;"><font style="color:#231f20;">Yes </font><font style="color:#231f20;font-family:'Times New Roman';">&#8999;</font><font style="display:inline-block;width:8.83pt;"></font><font style="color:#231f20;">No </font><font style="color:#231f20;font-family:'Times New Roman';">&#9723;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.5pt 23.7pt;"><font style="color:#231f20;">If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.</font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:5.88%;margin-right:5.88%;margin-top:30pt;page-break-after:always;width:88.24%;border-width:0;"><div style="max-width:100%;padding-left:5.88%;padding-right:5.88%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.5pt 23.7pt;"><font style="margin-left:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 0.5pt 0pt;">The Company expects to report that (a) consolidated revenue in fiscal year 2023 was $157.1 million, an increase of $67.8 million, or 76%, over the $89.4 million in fiscal year 2022, (b) consolidated operating income decreased to $1.4 million, or 17.5%, to $6.6 million for 2023 compared to operating income of $8.0 million for 2022 and (c) consolidated net income for 2023 was $2.0 million, compared to a net income of $4.2 million in 2022. Please refer to the Company&#8217;s press release filed as Exhibit 99.1 to the Current Report on Form 8-K filed with the Commission on March 26, 2024 for a fuller explanation of the significant changes in results of operations for the fiscal period ended December 31, 2023 from the period ended December 31, 2022.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0.5pt 23.7pt;"><font style="margin-left:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:12.3pt;margin:0pt 0pt 5pt 23.7pt;"><b style="font-weight:bold;">Cautionary Note Regarding Forward-Looking Statements</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">This Form 12b-25 may contain forward-looking statements within the meaning of federal securities laws that are subject to certain risks, trends and uncertainties.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">As used below, &#8220;we,&#8221; &#8220;us,&#8221; and &#8220;our&#8221; refer to the Company. We use words such as &#8220;could,&#8221; &#8220;would,&#8221; &#8220;may,&#8221; &#8220;might,&#8221; &#8220;will,&#8221; &#8220;expect,&#8221; &#8220;likely,&#8221; &#8220;believe,&#8221; &#8220;continue,&#8221; &#8220;anticipate,&#8221; &#8220;estimate,&#8221; &#8220;intend,&#8221; &#8220;plan,&#8221; &#8220;project&#8221; and other similar expressions to identify forward-looking statements, but not all forward-looking statements include these words. All of our forward-looking statements involve estimates and uncertainties that could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Accordingly, any such statements are qualified in their entirety by reference to the information described under the caption &#8220;Risk Factors&#8221; and elsewhere in our most recent Annual Report on Form 10 K (the &#8220;Form 10-K&#8221;) and subsequent periodic and or current reports filed with the Securities and Exchange Commission (the &#8220;SEC&#8221;).</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">The forward-looking statements contained in this Form 12b-25 are based on assumptions that we have made in light of our industry experience and our perceptions of historical trends, current conditions, expected future developments and other factors we believe are appropriate under the circumstances. As you read and consider this Form 12b-25, you should understand that these statements are not guarantees of performance or results. They involve risks, uncertainties (many of which are beyond our control) and assumptions. Although we believe that these forward-looking statements are based on reasonable assumptions, you should be aware that many factors could affect our actual operating and financial performance and cause our performance to differ materially from the performance expressed in or implied by the forward-looking statements. We believe these factors include, but are not limited to, the following: the restrictions and covenants imposed upon us by our credit facilities; our ability to secure additional financing to meet our capital needs; any significant fluctuations caused by our high customer concentration; risks related to non-payment by our clients; reputational and other harms caused by our failure to detect advertising&#160;fraud; operational and performance issues with our platform, whether real or perceived, including a failure to respond to technological changes or to upgrade our technology systems; restrictions on the use of third-party &#8220;cookies,&#8221; mobile device IDs or other tracking technologies, which could diminish our platform&#8217;s effectiveness; unfavorable publicity and negative public perception about our industry, particularly concerns regarding data privacy and security relating to our industry&#8217;s technology and practices, and any perceived failure to comply with laws and industry self-regulation; our failure to manage our growth effectively; the difficulty in identifying and integrating any future acquisitions or strategic investments; any changes or developments in legislative, judicial, regulatory or cultural environments related to information collection, use and processing; challenges related to our buy-side clients that are destination marketing organizations and that operate as public/private partnerships; any strain on our resources or diversion of our management&#8217;s attention as a result of being a public company; the intense competition of the digital advertising industry and our ability to effectively compete against current and future competitors; any significant inadvertent disclosure or breach of confidential and/or personal information we hold, or of the security of our or our customers&#8217;, suppliers&#8217; or other partners&#8217; computer systems; as a holding company, we depend on distributions from Direct Digital Holdings, LLC (&#8220;DDH LLC&#8221;) to pay our taxes, expenses (including payments under the Tax Receivable Agreement) and any amount of any dividends we may pay to the holders of our common stock; the fact that DDH LLC is controlled by DDM, whose interest may differ from those of our public stockholders; any risks associated with the material weakness that was identified in our review of internal control over financial reporting as of December 31, 2023; any failure by us to maintain or implement effective internal controls or to detect&#160;fraud; and other factors and assumptions discussed in our Form 10-K and subsequent periodic and current reports we may file with the SEC. Should one or more of these risks or uncertainties materialize, or should any of these assumptions prove to be incorrect, our actual operating and financial performance may vary in material respects from the performance projected in these forward-looking statements. Further, any forward-looking statement speaks only as of the date on which it is made, and except as required by law, we undertake no obligation to update any forward-looking statement contained in this Form 12b-25 to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances. New factors that could cause our business not to develop as we expect emerge from time to time, and it is not possible for us to predict all of them. Further, we cannot assess the impact of each currently known or new factor on our results of operations or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:5.88%;margin-right:5.88%;margin-top:30pt;page-break-after:always;width:88.24%;border-width:0;"><div style="max-width:100%;padding-left:5.88%;padding-right:5.88%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-top:1pt;text-indent:36pt;border-top:3.0pt solid #000000;margin:0pt 0pt 12pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Direct Digital Holdings, Inc.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 0pt 1.6pt 0pt;"><font style="color:#231f20;">(Name of Registrant as Speci&#64257;ed in Charter)</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 1.6pt 5.7pt;"><font style="color:#231f20;">has caused this noti&#64257;cation to be signed on its behalf by the undersigned hereunto duly authorized.</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 1.6pt 5.7pt;"><font style="margin-left:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:30.3pt;margin:0pt 0pt 4.55pt 5.7pt;"><font style="color:#231f20;">Date: April 2, 2024</font><font style="display:inline-block;width:30.24pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="color:#231f20;">By: </font><u style="color:#231f20;text-decoration-color:#231f20;text-decoration-line:underline;text-decoration-style:solid;">/s/ DIANA P. DIAZ</u></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:30.3pt;margin:0pt 0pt 4.55pt 5.7pt;"><font style="display:inline-block;text-indent:0pt;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="display:inline-block;width:36pt;"></font><font style="color:#231f20;">Diana P. Diaz, Chief Financial Officer</font></p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-left:5.88%;margin-right:5.88%;margin-top:30pt;page-break-after:avoid;width:88.24%;border-width:0;"></body></html>
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<DESCRIPTION>EX-99.1
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<!--Enhanced HTML document created with Toppan Merrill Bridge  10.5.122.0--><!--Created on: 4/2/2024 07:35:22 AM (UTC)--><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta charset="UTF-8"><title></title></head><body><div style="margin-top:30pt;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 0pt 12pt 0pt;"><b style="font-weight:bold;">Exhibit 99.1</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 0pt 12pt 0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">April 2, 2024</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Board of Directors</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Direct Digital Holdings, Inc.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">1177 West Loop South, Suite 1310</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">Houston, Texas 77027</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">Ladies and Gentlemen:</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">Pursuant to Rule 12b-25 of the General Rules and Regulations under the&#160;Securities Exchange Act of 1934, as amended, we inform you that we have been furnished a copy of Form 12b-25, to be filed by Direct Digital Holdings, Inc. on or about April 2, 2024, which contains notification of the registrant&#8217;s inability to file its Annual Report on Form 10-K by April 1, 2024. We have read the Company&#8217;s statements contained in Part III therein and we agree with the stated reasons as to why we have been unable to complete our audit and report on the Company&#8217;s consolidated financial statements for the year ended December 31, 2023, to be included in its Form 10-K.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">Very truly yours,</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">/s/ Marcum LLP</p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-left:10.35%;margin-right:10.35%;margin-top:30pt;page-break-after:avoid;width:79.3%;border-width:0;"></body></html>
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