In furtherance to the intimation dated May 13, 2026, w.r.t the resignation of SMP, please find enclosed the resignation document.

Kmp ResignedManagement Changes View source PDF Explain this filing

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Price reactionminutes from the announcement price · days from the prior close

+2.2%Reaction day

₹1810.00

prior close

₹1849.20

announcement price

In-mkt

timing

Nifty Smallcap 250market · index membership as recorded later (tracked since Jun 2026)+1.2%+1.0% vs market

Pharmaceuticals peers, median of 159sector+0.7%+1.5% vs sector

On the reaction day the stock moved 1.0 pts more than Nifty Smallcap 250 and 1.5 pts more than its Pharmaceuticals peers, over the same two closes: a difference in percentage points, not a measure of what the filing did.

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Reaction day

+2.2+1.2+1.0+0.7+1.5

Next day

+3.5+1.2+2.3+1.2+2.4

+3.0+2.0+1.0+1.4+1.6

+0.8+1.8-1.0+0.9-0.1

-0.6+3.1-3.6+2.2-2.7

+0.1+3.3-3.2+2.4-2.3

-1.4+3.1-4.5+2.2-3.6

15d

-5.8+1.9-7.7+1.6-7.5

-11.3+7.5-18.8+3.7-15.0

-6.9+9.4-16.3+9.6-16.5

-16.3+10.7-27.0+9.8-26.1

UpDownMarket · Nifty Smallcap 250Sector · Pharmaceuticals peers, median of 159Pending

Minute windows have no benchmark: there is no intraday index history to compare against.

AI summary

OneSource Specialty Pharma has filed the acknowledgement copy of the resignation letter for Prateek Gupta, who served as Senior Vice President and Head of Technical Development. Gupta submitted his resignation on May 13, 2026, which was accepted, with his last working day being May 15, 2026. This filing follows the earlier intimation made on May 13, 2026. The company has now submitted the formal relieving letter to the stock exchanges as required under SEBI Listing Regulations. Prateek Gupta was associated with the Process Development department at the Corporate office in Bengaluru.

Likely market impact

The departure of a senior vice president heading technical development could create a leadership gap in the company's technical operations and may signal potential instability in ongoing development projects, which could be viewed negatively by investors.