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Phathom Pharmaceuticals, Inc.

For the period ended Dec 31, 2025. Filed Feb 26, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 26, 2026

PHAT$5.33+1.5%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this annual report to be signed on its behalf by the undersigned, thereunto duly authorized.

PHATHOM PHARMACEUTICALS, INC.

/s/ Steven Basta

Steven BastaChief Executive Officer

Date: February 26, 2026

Pursuant to the requirements of the Securities Exchange Act of 1934, this annual report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

SignatureTitleDate
/s/ Steven BastaSteven BastaPresident, Chief Executive Officer andDirector (Principal Executive Officer)February 26, 2026
/s/ Sanjeev NarulaSanjeev NarulaChief Financial and Business Officer (Principal Financial Officer)February 26, 2026
/s/ Michael F. ColaMichael F. ColaDirectorFebruary 26, 2026
/s/ Frank KarbeFrank KarbeDirectorFebruary 26, 2026
/s/ Heidi KunzHeidi KunzDirectorFebruary 26, 2026
/s/ Asit ParikhAsit Parikh, M.D., Ph.D.DirectorFebruary 26, 2026
/s/ Ted SchroederTed SchroederDirectorFebruary 26, 2026
/s/ Mark StenhouseMark StenhouseDirectorFebruary 26, 2026
/s/ James TopperJames Topper, M.D., Ph.D.DirectorFebruary 26, 2026
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.