A block deal is a largely negotiated trade between two parties, executed on the stock exchange through a special window. These high-value transactions, typically involving institutional investors, allow bulk buying or selling without disrupting market prices. Block deals often signal strategic interest, fund movements, or stake changes in a listed company.
Here is the list of stocks in focus after prominent investors bought & sold a stake in it via a Bulk deal
Bharti Airtel
Bharti Airtel is one of India’s leading telecom operators, offering mobile, broadband, DTH, and enterprise services. With a strong presence across Asia and Africa, Airtel continues to benefit from rising data consumption, premiumisation of users, and steady improvements in ARPU, supporting long-term growth.
With a market capitalisation of Rs 12,12,267.59 crore, the shares were trading at Rs 2,126.00 per share, decreasing around 0.05 percent as compared to the previous closing price.
As per the recent data, Promoter entity Indian Continent Investment sold 3.43 crore equity shares, which is equivalent to 0.6 percent of the paid-up equity in Bharti Airtel for Rs 7,195.5 crore. These shares were sold at Rs 2,097.81 per share.
Total promoter shareholding in the telecom company was 50.27 percent as of September 2025, including Indian Continent Investment’s 1.48 percent stake.
Tarsons Products
Tarsons Products is a leading Indian manufacturer of laboratory plasticware, supplying high-quality consumables to research labs, hospitals, diagnostics, and pharma companies. Backed by in-house design and automation, the company benefits from growing healthcare and life sciences demand, along with rising exports from India.
With a market capitalisation of Rs 1,190 crore, the shares were trading at Rs 224 per share, decreasing around 0.16 percent as compared to the previous closing price.
Siddhartha Sacheti trimmed his holding in Tarsons Products by selling a 1.58% stake through two block deals. He offloaded 4.55 lakh shares at Rs 229.24 ( Rs 10.44 crore) and 3.85 lakh shares at Rs 233.37 ( Rs 9 crore), taking the total deal value to Rs 19.44 crore, signalling partial profit booking at current levels.
Mangalam Drugs and Organics
Mangalam Drugs and Organics is a specialty chemical and pharmaceutical intermediate manufacturer serving domestic and global markets. The company focuses on niche molecules used in APIs and chemicals, with strong compliance standards.
With a market capitalisation of Rs 46.76 crore, the shares were trading at Rs 29.54 per share, decreasing around 9.99 percent as compared to the previous closing price.
Tata Capital offloaded a 3.47% stake in Mangalam Drugs and Organics through two market deals, selling a total of 5.49 lakh shares. The bulk sale involved 4.44 lakh shares at Rs 33.54 for Rs 1.49 crore, followed by 1.05 lakh shares at Rs 33.36 for Rs 35.02 lakh, taking total proceeds to Rs 1.84 crore. This stake sale could increase free float and signal portfolio reshuffling by the investor.
Rain Industries
Rain Industries is a global integrated carbon materials company, supplying calcined petroleum coke and advanced carbon products to aluminium, steel, and chemical industries. With operations across India, Europe, and the US, the company is leveraged to global industrial demand cycles and benefits from the recovery in metal production.
With a market capitalisation of Rs 3,689.71 crore, the shares were trading at Rs 109.00 per share, decreasing around 0.08 percent as compared to the previous closing price.
First Water Fund picked up 19.48 lakh shares (0.57% stake) of Rain Industries for ₹21.24 crore via block deals at ₹109 per share from K2 Family Private Trust and Haresh Tikamdas Kaswani. The deal signals fresh institutional confidence at current price levels and could improve near-term sentiment around the stock.
First Water Capital Advisors-owned First Water Fund Class C held 40,93,265 equity shares, representing a 1.22% stake in Rain Industries as of September 2025.
Written by Abhishek Singh
Disclaimer
The views and investment tips expressed by investment experts/broking houses/rating agencies on tradebrains.in are their own, and not that of the website or its management. Investing in equities poses a risk of financial losses. Investors must therefore exercise due caution while investing or trading in stocks. Trade Brains Technologies Private Limited or the author are not liable for any losses caused as a result of the decision based on this article. Please consult your investment advisor before investing.
The post Rain Industries and 3 other stocks in focus after bulk deal appeared first on Trade Brains.