$专业多样网络(IPDN)$ 8-K - Current report Filed: 2019-09-24 AccNo: 0001493152-19-014452 Size: 30 KBItem 1.01: Entry into a Material Definitive AgreementItem 3.01: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing 网页链接