Zydus Lifesciences Further Extends Sterling Biotech API Acquisition to June 2026
Zydus Lifesciences has announced a second extension for its Sterling Biotech API business acquisition, moving the deadline to June 30, 2026. The extension follows ongoing processes at Sterling Biotech to complete conditions precedent outlined in the Business Transfer Agreement originally signed in September 2024.

*this image is generated using AI for illustrative purposes only.
Zydus Lifesciences has announced another extension for its planned acquisition of Sterling Biotech Limited's (SBL) Active Pharmaceutical Ingredients (API) business. The company has now extended the closing date to June 30, 2026, marking the second extension since the original agreement was signed.
Timeline of Extensions
The acquisition timeline has seen multiple adjustments since the initial agreement. The following table outlines the progression of deadlines:
| Milestone: | Date | Details |
|---|---|---|
| Original BTA Execution: | September 17, 2024 | Initial closing date: December 31, 2024 |
| First Extension: | September 30, 2025 | Extended to December 31, 2025 |
| Second Extension: | December 24, 2025 | Extended to June 30, 2026 |
Reasons for Latest Extension
According to the company's latest regulatory filing dated December 24, 2025, Sterling Biotech is still working to complete certain conditions precedent outlined in the Business Transfer Agreement. Zydus Lifesciences stated that "SBL is still in the process of completing certain conditions precedents of the BTA and hence the Company and SBL have executed a letter to extend the closing date by June 30, 2026."
Transaction Details
The acquisition involves Sterling Biotech's API business, which represents a strategic expansion for Zydus Lifesciences in the pharmaceutical ingredients sector. The deal remains subject to the completion of various conditions precedent as specified in the original Business Transfer Agreement.
| Transaction Parameter: | Details |
|---|---|
| Target Business: | Sterling Biotech's API Business |
| Current Deadline: | June 30, 2026 |
| Agreement Type: | Business Transfer Agreement (BTA) |
| Status: | Pending conditions precedent |
Regulatory Compliance
The company has maintained transparency throughout the process, informing stock exchanges about each development in compliance with Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The latest update was communicated to both BSE Limited and National Stock Exchange of India Limited.
Strategic Outlook
Despite the extended timeline, Zydus Lifesciences remains committed to completing the acquisition. The company expressed confidence that "the transaction is expected to be completed on or before June 30, 2026." The repeated extensions suggest the complexity of fulfilling all prerequisite conditions while maintaining the strategic value of the deal for both parties involved.
Historical Stock Returns for Zydus Life Science
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| -0.38% | +2.90% | -0.42% | -7.34% | -3.53% | +92.60% |
















































