The Exchange has received Disclosure under Regulation 31(1) and 31(2) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011 on December 31, 2025 for IRB Holding Pvt Ltd

Pledge ReleasedOwnership Changes View source PDF Explain this filing

IRB · 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

+0.3%Reaction day

₹21.02

prior close

₹21.10

announcement price

After-mkt

timing

Nifty Smallcap 250market · index membership as recorded later (tracked since Jun 2026)-0.1%+0.4% vs market

Civil Construction peers, median of 94sector+0.1%+0.2% vs sector

On the reaction day the stock moved 0.4 pts more than Nifty Smallcap 250 and 0.2 pts more than its Civil Construction 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

+0.4

10m

+0.1

15m

+0.1

30m

+0.0

Sessions after the filingfrom the prior close

StockMarketvs marketSectorvs sector

Reaction day

+0.3-0.1+0.4+0.1+0.2

Next day

+2.0+0.7+1.3+0.9+1.0

+0.4+1.0-0.6-0.3+0.6

-0.1+0.6-0.7-1.1+1.0

+0.8+0.8-0.0-1.4+2.2

-0.1-1.2+1.1-3.3+3.2

-2.1-3.5+1.4-6.3+4.2

15d

-5.7-8.2+2.5-12.8+7.1

-1.7-7.1+5.3-12.7+11.0

-4.4-6.6+2.2-12.9+8.5

+2.5-11.6+14.1-21.6+24.1

UpDownMarket · Nifty Smallcap 250Sector · Civil Construction peers, median of 94Pending

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

AI summary

IRB Infrastructure Developers Ltd has disclosed that encumbrance on 60,39,00,000 shares (10.00% of total share capital) held by promoter IRB Holding Private Limited has been released. The encumbrance was a non-disposal undertaking held in favour of Cintra INR Investments BV. Before this release, IRB Holding held 1,78,44,23,150 shares (29.55% of share capital) with 10% already encumbered; after the release, encumbered shares stand at Nil. The release follows a Letter Agreement dated December 31, 2025 that amends the existing investment agreement between IRB, Cintra INR Investments BV, Mr. Virendra D. Mhaiskar, IRB Holding, and other promoter group members. The reporting date is December 31, 2025.

Likely market impact

This is a positive signal — the non-disposal restriction on 10% of promoter shares has been fully waived, giving IRB Holding greater flexibility over these shares. It also reflects a modified arrangement between the promoters and their long-time investor Cintra, which may reduce overhang concerns for retail shareholders.