Onesource Specialty Pharma Limited has informed the Exchange regarding 'Disclosure under Regulation 29(2) of the SEBI (Substantial Acquisition of Shares & Takeovers)Regulations, 2011 and Regulation 7(2) of SEBI (Prohibition of Insider Trading) Regulations, 2015.Promoter entity (Tenshi Pharmaceuticals Private Limited), has purchased 200,000 equity shares of OneSource Specialty Pharma Limited, from the market, on January 28, 2026.'.

Promoter bought stakeOwnership Changes View source PDF Explain this filing

ONESOURCE · price

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▲ positive · ▼ negative · ● neutral filings · teal = economic event · numbered = multiple that day (click to pick). Times IST.

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

-5.1%Reaction day

₹1169.20

prior close

₹1160.00

announcement price

After-mkt

timing

Nifty Smallcap 250market · index membership as recorded later (tracked since Jun 2026)-0.1%-5.1% vs market

Pharmaceuticals peers, median of 158sector-0.6%-4.5% vs sector

On the reaction day the stock moved 5.1 pts less than Nifty Smallcap 250 and 4.5 pts less than its Pharmaceuticals peers, over the same two closes: a difference in percentage points, not a measure of what the filing did.

Minutes after the announcementfrom the announcement price · no benchmark

Stock

+0.3

10m

+0.2

15m

-1.2

30m

-2.3

Sessions after the filingfrom the prior close

StockMarketvs marketSectorvs sector

Reaction day

-5.1-0.1-5.1-0.6-4.5

Next day

+4.4+0.8+3.6+0.6+3.8

+3.5-0.8+4.3-0.2+3.7

+0.9+2.1-1.1+2.5-1.5

+3.3+2.8+0.4+2.9+0.3

-1.4+1.8-3.2+2.3-3.7

-0.0+4.0-4.0+3.3-3.3

15d

+12.0+2.2+9.8+1.2+10.8

+10.5-0.4+10.9-2.0+12.5

+24.9-8.6+33.5-12.9+37.8

+50.5+7.4+43.1+3.3+47.2

UpDownMarket · Nifty Smallcap 250Sector · Pharmaceuticals peers, median of 158Pending

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

AI summary

Tenshi Pharmaceuticals Private Limited, a promoter entity of OneSource Specialty Pharma Limited, bought 200,000 equity shares from the open market on January 28, 2026. The transaction was disclosed under SEBI's Takeover Regulations and Insider Trading Regulations. The filing indicates continued promoter confidence through a market purchase rather than a private deal.

Likely market impact

Promoter buying from the open market is generally viewed positively by retail investors as it signals insider confidence in the company's prospects. The relatively small size of 200,000 shares may have a limited direct impact on share price but reinforces promoter commitment.