Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the quarterly report on Form 10-Q of Allena Pharmaceuticals, Inc. (the “Company”) for the period ended September 30, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that to his knowledge:
| 1) | the Report which this statement accompanies fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and |
| 2) | the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
December 14, 2017 | By: | /s/ Alexey Margolin |
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| Alexey Margolin |
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| Chief Executive Officer and Director (Principal Executive Officer) |
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December 14, 2017 | By: | /s/ Edward Wholihan |
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| Edward Wholihan |
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| Chief Financial Officer (Principal Financial and Accounting Officer) |
