6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TORULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2021Commission File Number 001-40469

AcuityAds Holdings Inc.

(Translation of registrant’s name into English)

70 University Ave., Suite 1200Toronto, OntarioM5J 2M4

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): _______

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): _______

DOCUMENTS INCLUDED AS PART OF THIS REPORT

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

AcuityAds Announces Voting Results of AnnualMeeting of Shareholders

Toronto, ON, June 16, 2021 – AcuityAds Holdings Inc. (“AcuityAds” or the “Corporation”) (TSX:AT; NASDAQ:ATY), a technology leader that provides targeted digital media solutions enabling advertisers to connect intelligently with audiences across digital advertising channels, is pleased to announce that, at its annual meeting of shareholders (the “Meeting”) held earlier today, all director nominees were elected as directors of the Corporation, as follows:

In addition, the only other item of business at the Meeting, being the re-appointment of auditors of the Corporation, was also approved, as follows:

About AcuityAds:

AcuityAds is a leading technology company that provides marketers a one-stop solution for omnichannel digital advertising with best-of-category return on advising spend. Its journey automation technology, illumin™, offers planning, buying and real-time intelligence from one platform. With proprietary Artificial Intelligence, illumin™ brings unique programmatic capabilities to close the gap between advertising planning and execution. The Company brings an integrated ecosystem of privacy-protected data, inventory, brand safety and fraud prevention partners, offering trusted solutions with proven, above benchmark outcomes for the most demanding marketers. AcuityAds is headquartered in Toronto with offices throughout Canada, the U.S., Europe and Latin America. For more information, visit AcuityAds.com.

For further information, please contact: