David A. Steinberg - 22 Oct 2026 Form 4 Insider Report for Zeta Global Holdings Corp. (ZETA)

Reporting relationship: Chief Executive Officer, Director, 10%+ Owner
Issuer ticker: ZETA
Reported as of: 22 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 23 Oct 2026, 16:57:04 UTC
Prior SEC filing: 14 Aug 2026
Source filing: View source filing
Reporting owner signature: ACI Investment Partners, LLC, /s/ David A. Steinberg, Manager

Filing notes and source

Key filing fact

David A. Steinberg filed Form 4 for Zeta Global Holdings Corp. (ZETA) on 23 Oct 2026.

Key facts

This page summarizes David A. Steinberg's Form 4 filing for Zeta Global Holdings Corp. (ZETA).
6 reported transactions and 6 derivative rows are listed below.
Accepted by SEC: 23 Oct 2026, 16:57.

Change

Previous filing in this sequence was filed on 14 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (2)

CIK 0001308562 Primary reporting owner

Steinberg David

Relationship: Chief Executive Officer, Director, 10%+ Owner
Address: 3 PARK AVE, 33RD FLOOR, NEW YORK
Signature: ACI Investment Partners, LLC, /s/ David A. Steinberg, Manager
Signature date: 23 Oct 2026

CIK 0001861905

ACI Investment Partners, LLC

Relationship: 10%+ Owner
Address: 3 PARK AVENUE, 33RD FLOOR, NEW YORK
Signature: David A. Steinberg, /s/ Steven Vine, Attorney-in-fact
Signature date: 23 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ZETA transaction

Class A Common Stock

Options Exercise

Transaction value
Shares: +394,387
Change %: +100%
Price: $0.000000^*
Shares after: 790,094
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Footnotes: F1, F2, F3

ZETA transaction

Class A Common Stock

Options Exercise

Transaction value
Shares: +394,387
Change %: +100%
Price: $0.000000^*
Shares after: 790,094
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Footnotes: F1, F2, F3

ZETA transaction

Class A Common Stock

Tax liability

Transaction value
Shares: -51,730
Change %: -6.5%
Price: $33.52^*
Shares after: 738,364
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Footnotes: F3, F4

ZETA transaction

Class A Common Stock

Tax liability

Transaction value
Shares: -51,730
Change %: -6.5%
Price: $33.52^*
Shares after: 738,364
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Footnotes: F3, F4

ZETA transaction

Class A Common Stock

Disposed to Issuer

Transaction value
Shares: -79,731
Change %: -11%
Price: $33.52^*
Shares after: 658,633
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Footnotes: F3, F5

ZETA transaction

Class A Common Stock

Disposed to Issuer

Transaction value
Shares: -79,731
Change %: -11%
Price: $33.52^*
Shares after: 658,633
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Footnotes: F3, F5

ZETA holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 512
Date: 22 Oct 2026
Ownership: By Family Trusts
Footnotes: F6

ZETA holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 512
Date: 22 Oct 2026
Ownership: By Family Trusts
Footnotes: F6

ZETA holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 68,023
Date: 22 Oct 2026
Ownership: Direct
Footnotes: F7

ZETA holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 68,023
Date: 22 Oct 2026
Ownership: Direct
Footnotes: F7

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ZETA transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -202,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Underlying class: Class A Common Stock
Underlying amount: 202,000
Exercise price
Footnotes: F2, F3, F8, F9

ZETA transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -202,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Underlying class: Class A Common Stock
Underlying amount: 202,000
Exercise price
Footnotes: F2, F3, F8, F9

ZETA transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -59,426
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Underlying class: Class A Common Stock
Underlying amount: 59,426
Exercise price
Footnotes: F2, F3, F8, F9

ZETA transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -59,426
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Underlying class: Class A Common Stock
Underlying amount: 59,426
Exercise price
Footnotes: F2, F3, F8, F9

ZETA transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -132,961
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Underlying class: Class A Common Stock
Underlying amount: 132,961
Exercise price
Footnotes: F1, F3, F8, F10

ZETA transaction Derivative

Performance-Based Restricted Stock Units

Options Exercise

Transaction value
Shares: -132,961
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 22 Oct 2026
Ownership: By ACI Investment Partners, LLC
Underlying class: Class A Common Stock
Underlying amount: 132,961
Exercise price
Footnotes: F1, F3, F8, F10

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 10 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.

Footnote F4

Withholding of shares in satisfaction of taxes due upon the vesting of PSUs under the Issuer's Incentive Award Plan.

Footnote F5

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.

Footnote F6

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.

Footnote F7

Share balance includes stock purchased under an Employee Stock Purchase Plan (ESPP) not previously reported.

Footnote F8

Each PSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Footnote F9

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.

Footnote F10

As the performance conditions were met at the maximum level with respect to the 2024 PSUs, no additional 2024 PSUs may be earned.