6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A - 16 OR 15D - 16 OF

THE SECURITIES EXCHANGE ACT OF 1934

30 June 2021

Commission File No. 001-32846

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CRH public limited company

(Translation of registrant's name into English)

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Belgard Castle, Clondalkin,

Dublin 22, Ireland.

(Address of principal executive offices)

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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):________

Enclosure:

Transaction in Own Shares / Total Voting Rights

30th June 2021

RE-ISSUE OF TREASURY SHARES / TOTAL VOTING RIGHTS

CRH plc announces that today, 30th June 2021, it transferred to participants in its employee share schemes 11,205 Ordinary Shares at prices of €23.39 and €24.24 per Ordinary Share and at prices of £16.16 and £20.83 per Ordinary Share.

Following the above transaction, CRH plc holds 12,650,585 Ordinary Shares in Treasury.  The number of Ordinary Shares in issue (excluding Treasury Shares) is 782,489,753.

The above figure, 782,489,753 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, CRH plc under the Transparency (Directive 2004/109/EC) Regulations 2007 (as amended) and the Transparency Rules.

Contact

Diarmuid Enright

Assistant Company Secretary

Tel:  003531 6344340

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SIGNATURE

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.