Professional Diversity Network, Inc.

IPDN·NASDAQ·$0.67Share Price as of 11/2·$1MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/14/26 10-QQ1 ended 03/31/2605/15/26 10-KFY 202503/31/26 10-QQ3 ended 09/30/2511/14/25 10-QQ2 ended 06/30/2508/14/25

Disclosures

8-KCurrent report10/21/26 8-KCurrent report10/19/26 8-KCurrent report10/06/26 8-KCurrent report10/02/26 8-KCurrent report09/30/26

Prospectuses and Registrations

424B4Prospectus08/13/26 S-1/ARegistration statement (amended)07/28/26 S-1/ARegistration statement (amended)07/07/26 S-1Registration statement (IPO)06/26/26 424B5Prospectus supplement10/31/25

Proxies

DEF 14ADefinitive proxy06/22/26 PRE 14APreliminary proxy06/11/26 DEF 14ADefinitive proxy04/30/26 DEF 14ADefinitive proxy05/01/25 DEF 14ADefinitive proxy04/29/24

Ownership

SC 13G/ABeneficial ownership (amended)10/13/26 SC 13GBeneficial ownership09/12/25 SC 13G/ABeneficial ownership (amended)05/15/25 SC 13D/ABeneficial ownership (amended)04/08/25 SC 13GBeneficial ownership02/14/25

Other

DD10/28/26 DD10/27/26 EFFECTRequest for effectiveness08/12/26 DRSDRS05/29/26 DD01/05/26