Pharma/CDMO - Listed on 21 July 2025
Anthem Biosciences (Pharma/CDMO) closed its IPO window in 2025 and listed on NSE and BSE on 21 July 2025 at an upper band issue price of Rs 570, opening at Rs 723 for a listing gain of +26.8% and closing day one at Rs 730.35 (+28.1% on closing basis). The IPO was subscribed 63.86x overall - QIB 182.65x, HNI/NII 42.35x, Retail 5.64x. The total issue size was Rs 3,395 Cr (Fresh Issue Rs 0 Cr, OFS Rs 3395 Cr). IPO GMP data, subscription trends across Day 1 - Day 3 and Nifty performance around the listing window are detailed below.
Pharma/CDMO
Anthem Biosciences operates in the Pharma/CDMO space. The company’s listed profile is shaped by its operating niche, customer demand and ability to convert that demand into steady cash flows. Investors should read its exchange filings alongside the headline listing numbers for a fuller view of the business.
Issue structure, listing outcome and context
The Anthem Biosciences issue was offered at an upper price of Rs 570 and raised approximately Rs 3,395 crore. The final outcome reflected a mix of subscription demand, valuation, market conditions and the company’s own operating story. Fresh issue and offer-for-sale details, where available, are shown in the issue metrics below.
Number of times each investor category subscribed by close of Day 3.
How overall subscription built up across the three-day issue window.
Grey market premium (GMP) tracked day-by-day across the IPO window. Absolute GMP is the premium in rupees over the upper issue price; GMP % is that premium as a percent of the issue price.
| Day | GMP (Rs) | GMP % |
|---|---|---|
| Day 1 | Rs 95 | +16.67% |
| Day 2 | Rs 95 | +16.67% |
| Day 3 | Rs 100 | +17.54% |
| Day 4 | Rs 115 | +20.18% |
| Day 5 | Rs 150 | +26.32% |
Comparison between market-based GMP prediction and IPOGyani's AI-powered listing gain prediction.
How the broader market moved around the Anthem Biosciences IPO window. Helpful for isolating how much of the listing gain came from company fundamentals vs. market tailwind.
Anthem Biosciences IPO listed at +26.8% versus the upper issue price of Rs 570 on 21 July 2025.
Anthem Biosciences IPO was subscribed 63.86x overall. QIB portion was subscribed 182.65x, HNI / NII 42.35x and Retail 5.64x.
IPO GMP started at Rs 95 on Day 1 and moved to Rs 150 by the close of the issue window. See the day-by-day GMP table above for the full trajectory.