Exhibit 99.1 For Immediate Release Phibro Animal Health Corporation Reports First Quarter Results, Maintains Financial Guidance TEANECK, N.J., November 4, 2026 (Business Wire) – Phibro Animal Health Corporation (Nasdaq: PAHC) ("Phibro" or the "Company") today announced financial results for its first quarter ended September 30, 2026 and maintained its financial guidance for the year ending June 30, 2027. Highlights for the three months ended September 30, 2026 (compared to the three months ended September 3 ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36410 Phibro Animal Health Corporation (Exact name of registrant as specified in its charter) Delaware 13 ...