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  1. Rubicon Research IPO: Issue fully subscribed on day 2; retail investors take lead; check category-wise status

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Rubicon Research IPO: Issue fully subscribed on day 2; retail investors take lead; check category-wise status

Ahana Chatterjee - image.jpg

3 min read | Updated on October 10, 2025, 14:56 IST

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SUMMARY

Until 2:50 PM, the initial share sale received bids for 19,336,590 shares as compared to 16,455,670 shares on offer, as per exchange data

Rubicon Research is expected to make its stock market debut on October 16.

Rubicon Research is expected to make its stock market debut on October 16. | Image: rubicon.co.in

Pharmaceutical player Rubicon Research's initial public offering (IPO) got fully booked on the second day of bidding with 1.18 times of subscription.
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Until 2:50 PM, the initial share sale received bids for 19,336,590 shares as compared to 16,455,670 shares on offer, as per exchange data.

The non-institutional investor (NII) segment was subscribed 1.38 times, while the retail individual investor (RII) portion drew 3.25 times subscription. However, the qualified institutional buyers (QIB) category was booked 0.38 times.

The issue has set a price band of ₹461 to ₹485 per share. The ₹1,377.50 crore initial share sale, which will conclude on October 13, consists of a fresh issuance of shares aggregating to ₹500 crore and an offer for sale of ₹877.50 crore by the promoter selling shareholder General Atlantic Singapore RR Pte Ltd.

Capital raised to the tune of ₹310 crore will be allocated for debt clearance, and a portion will be used for inorganic growth via acquisitions, strategic initiatives and corporate general purposes.

Rubicon Research IPO lot size

A lot consists of 30 shares. In terms of allocation, 75% of the net offer has been reserved for qualified institutional buyers (QIBs), 15% for non-institutional investors (NIIs) and the rest, 10%, for retail investors.

Before the IPO, the company collected ₹619 crore in the anchor round from investors including Goldman Sachs, Fidelity Funds, HDFC Mutual Fund (MF), ICICI Prudential MF, Kotak Mahindra MF, Amansa Holdings and Aranda Investments Pte. It allotted over 1.27 crore shares to 32 funds at ₹485 per share.

On Wednesday, Rubicon Research, in a public announcement, also announced Kotak Mutual Fund and Motilal Mutual Fund have together invested ₹169 crore in the pharmaceutical company.

As part of the transaction, General Atlantic transferred 34.86 lakh shares, reflecting a 2.25% stake, at a price of ₹484.47 per share, amounting to approximately ₹169 crore.

The IPO’s allotment basis will be announced on October 14, followed by the initiation of refunds and credit of shares to demat accounts on October 15. The shares are set to be listed on the stock exchange on October 16.

Rubicon Research is a pharmaceutical formulations player with a strong focus on research & development (R&D) and innovation. Its portfolio includes an increasing number of speciality products and drug-device combination products for regulated markets, particularly the United States.

Rubicon Research IPO GMP
According to investorgain.com and media reports, the unlisted shares of Rubicon Research are trading at ₹596 per share, reflecting a grey market premium of 22.89% over ₹485, the upper price band of the issue.
Disclaimer: Grey Market Premium, or GMP, is an unofficial indicator of market sentiment toward an IPO. It is not regulated by the stock exchanges or SEBI. Upstox neither supports nor encourages grey market trading. Investors are advised to conduct their own research or consult an expert before making any investment decisions.
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About The Author

Ahana Chatterjee - image.jpg
Ahana Chatterjee is a business journalist with 7 years of experience across several leading news platforms. At Upstox, she covers stock markets and corporate news.

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