UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16
under the Securities Exchange Act of 1934

For the month of September 2022

Commission File Number 001- 40539

ironSource Ltd.

(Translation of Registrant’s name into English)

121 Menachem Begin Street

Tel Aviv 6701203, Israel

(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:

Form 20-F x

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): ¨

EXPLANATORY NOTE

On September 18, 2022, in connection with and following the notice (the "Notice") that was published by ironSource Ltd. (the “Company”) ~~held~~on ~~its~~August 29, ~~Annual~~2022, the Company updated the date of the Special General ~~Meeting~~Meetings of Shareholders of the Company (the “~~Meeting~~Meetings”) from atMonday, ~~the~~October 3, ~~Company's~~2022, ~~headquarters~~to atFriday ~~121~~October 7, ~~Menachem~~2022. ~~Begin Street,~~The ~~Tel~~record ~~Aviv-Yafo,~~date for the Meetings remains September ~~Israel~~2, on2022 (as originally stated in the ~~12th floor~~Notice).

At the Meeting, the Company’s shareholders approved the following proposals:

(1) to re-elect each of Eyal Milrad, Marni Walden and Yehoshua Nir (Shuki), as Class I directors, to hold office until the close of the Company’s Annual General Meeting of Shareholders in 2025, and until their respective successors are duly elected and qualified; and

(2) to approve and ratify the re-appointment of Kesselman & Kesselman, registered public accounting firm, a member firm of PricewaterhouseCoopers International Limited, as the Company’s independent registered public accounting firm for the year ending December 31, 2022 and until the next annual general meeting of shareholders, and to authorize the Company’s board of directors (with power of delegation to its audit committee) to set the fees to be paid to such auditors.

All proposals were approved at the Meeting by the respective requisite majority in accordance with the Israeli Companies Law, 5759-1999, and the Company’s Articles of Association, as described in the Proxy Statement which was attached as Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-K, furnished to the Securities and Exchange Commission on July 27, 2022.

This Form 6-K is hereby incorporated by reference into the Company's Registration Statements on Form S-8 (Registration Nos. 333-264007 and 333-258690).

Cautionary Statement Regarding Forward-Looking Statements

This communication includes forward-looking statements. These forward-looking statements generally can be identified by phrases such as “will,” “expects,” “anticipates,” “foresees,” “forecasts,” “estimates’’ or other words or phrases of similar import. These statements are based on current expectations, estimates and projections about the industry and markets in which Unity Software Inc. (“Unity”) and ironSource Ltd. (“ironSource”) operate and management’s beliefs and assumptions as to the timing and outcome of future events, including the transactions described in this communication. While Unity’s and ironSource’s management believe the assumptions underlying the forward-looking statements are reasonable, such information is necessarily subject to uncertainties and may involve certain risks, many of which are difficult to predict and are beyond management’s control. These risks and uncertainties include, but are not limited to the expected timing and likelihood of completion of the proposed transaction, including the timing, receipt and terms and conditions of any required governmental and regulatory approvals of the proposed transaction; the occurrence of any event, change or other circumstances that could give rise to the termination of the merger agreement; the outcome of any legal proceedings that may be instituted against the parties and others following announcement of the merger agreement; the inability to consummate the transaction due to the failure to obtain the requisite stockholder approvals or the failure to satisfy other conditions to completion of the transaction; risks that the proposed transaction disrupts current plans and operations of Unity and ironSource; the ability to recognize the anticipated benefits of the transaction, including anticipated synergies; the amount of the costs, fees, expenses and charges related to the transaction; Unity’s expected stock buyback occurring as planned or at all; and the other risks and important factors contained and identified in Unity’s and ironSource’s filings with the Securities and Exchange Committee (“SEC”), such as Unity’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 and subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and ironSource’s Annual Report on Form 20-F for the fiscal year ended December 31, 2021 and subsequent Current Reports on Form 6-K, any of which could cause actual results to differ materially from the forward-looking statements in this communication.

There can be no assurance that the proposed transaction will in fact be consummated. We caution investors not to unduly rely on any forward-looking statements. The forward-looking statements speak only as of the date of this press release. Neither Unity nor ironSource is under any duty to update any of these forward-looking statements after the date of this communication, nor to conform prior statements to actual results or revised expectations, and neither Unity nor ironSource intends to do so.

Important Information for Investors and Stockholders

In connection with the proposed transaction, Unity has filed with the SEC a registration statement on Form S-4 that includes a preliminary joint proxy statement of Unity and ironSource that also constitutes a preliminary prospectus of Unity, which joint proxy statement/prospectus will be mailed or otherwise disseminated to Unity’s and ironSource’s respective securityholders, as applicable, when it is declared effective by the SEC. Unity and ironSource also plan to file other relevant documents with the SEC regarding the proposed transaction. INVESTORS ARE URGED TO READ THE PRELIMINARY JOINT PROXY STATEMENT/PROSPECTUS AND OTHER RELEVANT DOCUMENTS FILED WITH THE SEC IF AND WHEN THEY BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.

Investors and securityholders may obtain free copies of the registration statement and the preliminary joint proxy statement/prospectus and other relevant documents filed by Unity and ironSource with the SEC at the SEC’s website at www.sec.gov. Copies of the documents filed by the companies will be available free of charge on their respective websites at www.unity.com and www.is.com.

Participants in Solicitation

Unity, ironSource and their respective directors and executive officers may be considered participants in the solicitation of proxies in connection with the proposed transaction. Information about the directors and executive officers of Unity is set forth in its proxy statement for its 2022 annual meeting of stockholders, which was filed with the SEC on April 20, 2022. Information about the directors and executive officers of ironSource is set forth in its Annual Report on Form 20-F for the fiscal year ended December 31, 2021, which was filed with the SEC on March 30, 2022. These documents can be obtained free of charge from the sources indicated above. Additional information regarding the participants in the proxy solicitations and a description of their direct and indirect interests, by security holdings or otherwise, are contained in the preliminary joint proxy statement/prospectus and other relevant materials to be filed with the SEC when they become available.

No Offer or Solicitation

This communication is not intended to and shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote of approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

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.

	IRONSOURCE, LTD.
	(Registrant)
	By:	/s/ Assaf Ben Ami
		Assaf Ben Ami
		Chief Financial Officer
	Date: September 6, 2022
	Date:	September 8, 2022

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