X0609 4 2026-10-22 0001851003 Zeta Global Holdings Corp. ZETA 0001308562 Steinberg David false 3 PARK AVE, 33RD FLOOR NEW YORK NY 10016 true true true false Chief Executive Officer 0001861905 ACI Investment Partners, LLC false 3 PARK AVENUE, 33RD FLOOR NEW YORK NY 10016 false false true false false Class A Common Stock 2026-10-22 4 M false 394387 0 A 790094 I By ACI Investment Partners, LLC Class A Common Stock 2026-10-22 4 F false 51730 33.52 D 738364 I By ACI Investment Partners, LLC Class A Common Stock 2026-10-22 4 D false 79731 33.52 D 658633 I By ACI Investment Partners, LLC Class A Common Stock 512 I By Family Trusts Class A Common Stock 68023 D Performance-Based Restricted Stock Units 2026-10-22 4 M false 202000 0 D Class A Common Stock 202000 0 I By ACI Investment Partners, LLC Performance-Based Restricted Stock Units 2026-10-22 4 M false 59426 0 D Class A Common Stock 59426 0 I By ACI Investment Partners, LLC Performance-Based Restricted Stock Units 2026-10-22 4 M false 132961 0 D Class A Common Stock 132961 0 I By ACI Investment Partners, LLC On April 3, 2024, the reporting person was granted an award of performance-based restricted stock units (the "2024 PSUs"), which are eligible to be earned in the form of restricted stock units based on the volume-weighted average closing price per share of the Issuer's Class A Common Stock during the final 20 consecutive trading days of each fiscal quarter beginning with the fourth fiscal quarter of 2024 and ending with, and including, the fourth fiscal quarter of 2028. Any unearned portion of the PSUs will expire on January 1, 2029. On October 22, 2026, the Issuer determined that the performance conditions were met at the maximum level with respect to the 2024 PSUs, resulting in these securities being earned, with 33.33% of such securities vesting on such date of determination and the remainder vesting in equal installments every three months thereafter, subject to the reporting person's continued service with the Issuer through each applicable vesting date. On each of February 23, 2022 and April 21, 2023, the reporting person was granted an award of performance-based restricted stock units (respectively, the "2022 PSUs" and the "2023 PSUs" and, collectively with the 2024 PSUs, the "PSUs"), which are eligible to be earned in the form of restricted stock units based on the volume-weighted average closing price per share of the Issuer's Class A Common Stock during the final 20 consecutive trading days of each fiscal quarter. On October 22, 2026, the Issuer determined that the performance conditions exceeded the prior earned level with respect to the 2022 PSUs and 2023 PSUs, resulting in these securities being earned, which securities vest three equal annual installments beginning on such date of determination, subject to the reporting person's continued service with the Issuer through each applicable vesting date. Securities held directly by ACI Investment Partners, LLC ("ACI"). Mr. Steinberg is the manager of ACI. Mr. Steinberg disclaims beneficial ownership of the shares held directly by ACI except to the extent of his pecuniary interest therein, if any. Withholding of shares in satisfaction of taxes due upon the vesting of PSUs under the Issuer's Incentive Award Plan. Pursuant to the PSU award agreements and the Issuer's Incentive Award Plan, the Issuer elected to cash settle the earned PSUs that vest on October 22, 2026. Mr. Steinberg is co-trustee of each family trust and as a result may be deemed to share beneficial ownership of the securities held of record by each trust to the extent of his pecuniary interest therein, if any. Share balance includes stock purchased under an Employee Stock Purchase Plan (ESPP) not previously reported. Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. Additional PSUs may be earned based upon the volume-weighted average closing price per share of the Issuer's Class A Common Stock during the final 20 consecutive trading days of each fiscal quarter ending with, and including, the fourth fiscal quarter of (i) 2026, with respect to the 2022 PSUs, and (ii) 2027, with respect to the 2023 PSUs. To the extent earned, the 2022 PSUs and 2023 PSUs vest in three equal annual installments, with the first installment vesting on the date the Issuer determines the number of PSUs that are eligible to vest for such quarter, and the second and third installments vesting on the first and second anniversaries of such determination date, subject to the reporting person's continued service with the Issuer through each applicable vesting date. Any unearnd PSUs will expire on January 1 of the fifth year following the grant date. As the performance conditions were met at the maximum level with respect to the 2024 PSUs, no additional 2024 PSUs may be earned. ACI Investment Partners, LLC, /s/ David A. Steinberg, Manager 2026-10-23 David A. Steinberg, /s/ Steven Vine, Attorney-in-fact 2026-10-23