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SEBI Takeover Code (SAST Regulations 2011): Trigger Thresholds, Open Offer and Exemptions

SEBI (Substantial Acquisition of Shares and Takeovers) Regulations 2011 require an open offer to public shareholders when a buyer crosses 25% voting rights in a listed company. Lea...

TaxClue Team Tax & Compliance Expert
4 min read 139 views Updated Aug 23, 2026
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Last updated: August 2026Verified against: Government sources
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SEBI (Substantial Acquisition of Shares and Takeovers) Regulations 2011 require an open offer to public shareholders when a buyer crosses 25% voting rights in a listed company. Learn the thresholds, open offer mechanics, and exemptions.

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SEBI (Substantial Acquisition of Shares and Takeovers) Regulations 2011 (SAST) govern the acquisition of shares and takeovers of listed companies. Popularly called the "Takeover Code," these regulations balance the interests of acquirers, target companies, and public shareholders by requiring transparency and an opportunity for minority shareholders to exit at a fair price.

Key Triggering Events for Open Offer

RegulationTriggerResult
Reg 3(1)Acquisition that takes holding from below 25% to 25% or aboveMandatory open offer for 26%
Reg 3(2) (creeping)Already holds 25%-75%; acquires more than 5% additional in a FYMandatory open offer for 26%
Reg 4 (control)Acquiring control regardless of shareholding %Mandatory open offer for 26%
Reg 5 (hostile)Voluntary open offer by any acquirerVoluntary offer for any percentage

Open Offer Price (Regulation 8)

The open offer price must be the highest of:

  1. Highest price paid by acquirer (or PAC) in last 52 weeks before PA
  2. Volume-weighted average market price of 60 trading days preceding PA date
  3. Price at which preferential allotment/conversion was made (if any in last 52 weeks)
  4. The per share value computed from highest price paid for any acquisition in last 26 weeks

Voluntary Open Offer (Regulation 6)

An acquirer who holds between 25%-75% can make a voluntary open offer without any mandatory trigger. Minimum size: 10% of total voting rights. Cannot reduce the offer size after announcement. Cannot acquire shares in market during offer period.

Persons Acting in Concert (PAC) — Regulation 2(q)

PAC concept is central to threshold calculation. If A holds 15% and B (A's affiliate) holds 12%, combined holding is 27% — triggering open offer obligation. PAC includes:

  • Promoter group members
  • Companies under common control or common management
  • Relatives (as per Companies Act definition)
  • Any person with explicit or implicit agreement to coordinate on acquisition

Timeline of Open Offer

EventDeadline
Public Announcement (PA) + Detailed Public Statement (DPS)Within 5 working days of triggering event
PA published in newspapersOn day of PA
Draft Letter of Offer submitted to SEBIWithin 15 working days of PA
SEBI comments on draftWithin 15 working days of receipt
Letter of Offer dispatched to shareholdersAt least 15 working days before offer opens
Open offer periodMinimum 10 working days
Payment to tendering shareholdersWithin 10 working days of close of offer

Exemptions from Open Offer (Regulation 10)

  • Acquisition from a state financial institution by scheduled bank or company
  • Acquisition pursuant to a scheme of arrangement under Companies Act approved by NCLT
  • Acquisition in delisting of shares
  • Inter-se transfer between promoters (within promoter group, certain conditions)
  • Rights issue and bonus shares (if proportionate)
  • Inheritance/gift (no consideration paid)

Deposit in Escrow

Acquirer must deposit in escrow at the time of PA:

  • 25% of maximum consideration payable (for consideration up to Rs.500 crore)
  • Additional deposit of 50% of remaining balance for consideration > Rs.500 crore
  • Escrow released upon completion of offer and payment to shareholders

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Key Facts About SEBI Takeover Code

  • Applies in: All states across India, under the relevant central law.
  • Mode: Mostly online via the official government portal.
  • Typical timeline: Ranges from a few days to a few weeks depending on the case.
  • Non-compliance: May attract penalties, interest or late fees.
  • Expert help: TaxClue completes the entire process end to end for you.

What triggers a mandatory open offer under SEBI SAST?

Regulation 3(1): Crossing 25% voting rights (alone or with PAC). Regulation 4: Acquiring 5% or more in a year when already holding between 25%–75% (creeping acquisition beyond 5% in a year). Regulation 5: Acquiring control regardless of shareholding.

What percentage must be offered in the open offer?

Minimum 26% of total voting rights. The open offer price must be the highest of: negotiated acquisition price, highest price paid by acquirer in last 52 weeks, weighted average market price of 60 days, or 52-week high price.

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SEBI Takeover Code: a key compliance topic in Indian tax and corporate law that businesses and individuals must understand to remain compliant.

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Why This Matters

Staying compliant with Indian regulations protects your business from penalties, interest and unnecessary legal trouble.

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Frequently Asked Questions
What triggers a mandatory open offer under SEBI SAST?
Regulation 3(1): Crossing 25% voting rights (alone or with PAC). Regulation 4: Acquiring 5% or more in a year when already holding between 25%–75% (creeping acquisition beyond 5% in a year). Regulation 5: Acquiring control regardless of shareholding.
What percentage must be offered in the open offer?
Minimum 26% of total voting rights. The open offer price must be the highest of: negotiated acquisition price, highest price paid by acquirer in last 52 weeks, weighted average market price of 60 days, or 52-week high price.
What is creeping acquisition under SAST?
Regulation 3(2): An acquirer already holding 25% to 75% can acquire up to 5% additional shares in a financial year without triggering open offer. Acquiring more than 5% in a year triggers mandatory open offer.
Who are Persons Acting in Concert (PAC)?
Persons who cooperate in acquisition of shares pursuant to an agreement/understanding (formal or informal). PACs count together for threshold calculations. Includes promoter group, relatives, companies under common control.
What exemptions exist from mandatory open offer?
Regulation 10 exemptions: acquisition from a single seller in off-market transaction (certain conditions), allotment in rights issue proportionate to existing holding, government/regulatory body acquisition, intra-group transfers, gifts among promoters.
What is the timeline for open offer?
Detailed Public Statement (DPS) within 5 working days of triggering. PA (Public Announcement) published in newspapers. Open offer window: minimum 10 working days, opened within 26 weeks of PA. Total timeline approximately 26 weeks.
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Disclaimer: This article is for general informational purposes only and does not constitute professional tax, legal or financial advice. Laws, rates and due dates change and can vary by individual case — always verify with the relevant government source (e.g. mca.gov.in, incometax.gov.in) or consult a qualified professional before acting. TaxClue accepts no liability for decisions taken based on this content.

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