Announced Sun, 15 Jun · 19:28 IST

Authum Investment & Infrastructure Limited has informed the Exchange about Acquisition of Shares of OneSource Specialty Pharma Limited in continuation to the disclosure dated June 13, 2025.

Listed Co AcquisitionStrategic Transactions View source PDF

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Awaiting price reaction for this filing.

AI summary

Authum Investment & Infrastructure Limited acquired 39.27 lakh shares of OneSource Specialty Pharma Limited (formerly Stelis Biopharma) from Devicam Capital LLP and Pronomz Ventures LLP on June 13, 2025, giving it 3.43% voting rights on a fully diluted basis. The deal was valued at approximately ₹796.4 crore, based on a fair market value of ₹2,028 per share on NSE. OneSource Specialty Pharma is a listed pharmaceutical CDMO (Contract Development and Manufacturing Organization) with a net worth of ₹5,880 crore and FY25 turnover of ₹1,444.8 crore, showing sharp revenue growth from just ₹41 crore in FY23. The acquisition is a commercial transaction with no related-party angle and no regulatory approvals required.

Likely market impact

This is a major ₹796+ crore strategic investment by Authum into India's specialty pharma CDMO space, which has shown explosive revenue growth. The 3.43% passive stake is well below the 5% open-offer threshold, so no mandatory offer is triggered. Investors should monitor whether Authum builds a larger position or takes a more active role in OneSource going forward.