The largest biotech funding rounds in December 2025

The businesses Kymera Therapeutics, Immunovant, and Dyne Therapeutics bagged the largest biotech funding rounds total in December 2025 throughout non-public and public funding varieties. On this article, we break down final month’s non-public and public fundraising exercise, trying on the largest rounds in additional element.

Personal biotech funding rounds in December 2025

First, let’s check out the non-public biotech investments in December 2025, breaking them down by worth, location, funding kind, and therapeutic subsector.

Largest non-public biotech funding rounds by worth

Within the remaining month of 2025, it was Denali Therapeutics that got here out on high of the non-public funding rankings, because it introduced a $275 million artificial royalty funding settlement with Royalty Pharma based mostly on future web gross sales of its lead asset tividenofusp alfa. The candidate is designed to deal with mucopolysaccharidosis kind II (MPS II, or Hunter syndrome) and the U.S. Meals and Drug Administration (FDA) is presently reviewing a Biologics License Utility (BLA) for accelerated approval of the drug. 

In the meantime, in second place within the standings was Syremis Therapeutics, which launched in December 2025 with $165 million in collection A funding. The corporate’s lead program, ST-905, is a twin M1/M4 muscarinic agonist in growth for schizophrenia and different neuropsychiatric situations and is presently in section 1 trials.

And, in third place final month, synthetic intelligence (AI) firm Chai Discovery raised $130 million in collection B funding. The corporate makes use of AI to foretell and reprogram the interactions between biochemical molecules, and its mission is to primarily “remodel biology from science into engineering.” This newest spherical of financing now values the corporate at $1.3 billion.

Personal biotech funding rounds by location

North America was the standout area for personal biotech fundraising in December 2025, with corporations situated there elevating $1.604 billion from 17 rounds. Europe got here second when it comes to the variety of rounds, with seven in complete; nevertheless, considerably surprisingly, the Asia-Pacific area truly introduced in extra money total, with $373 million from simply three rounds, in comparison with Europe’s complete of $180.6 million. 

Personal biotech funding rounds by funding kind

Collection A and B rounds dominated the standings final month; there have been 11 collection A rounds, from which $747.8 million was raised, and there have been 9 collection B rounds, from which $872 million was raised. It’s price noting that there have been no important late-stage (collection C, D, or E) rounds, although.

Personal biotech funding rounds by therapeutic subsector

Oncology gamers by far attracted essentially the most funding final month, bringing in $632.3 million from 10 rounds. The following hottest therapeutic subsector was genetic illnesses, which attracted $450 million from three rounds.

Public biotech funding rounds in December 2025

Now, let’s take a look at the general public biotech fundraising rounds that occurred in December 2025, breaking them down by worth and therapeutic subsector.

Public biotech funding by worth

Kymera Therapeutics attracted the biggest public funding spherical final month after closing an upsized $602 million public providing. The corporate is working within the discipline of focused protein degradation to deal with illness targets and pathways inaccessible with typical therapeutics.

In the meantime, autoimmune illness firm Immunovant introduced within the second-largest spherical in December after pricing a $550 million underwritten providing, and neuromuscular illness firm Dyne Therapeutics attracted the third-largest fundraising after closing a $402.5 million upsized public providing.

Public biotech funding by therapeutic subsector

Though oncology gamers got here out on high final month when it comes to the variety of rounds (6), it was immunological illness corporations that raised the biggest sum of money, bringing in an unbelievable $1.357 billion from 5 rounds. Moreover, the therapeutic subsector of neuromuscular illnesses introduced within the second-largest sum of money regardless of only one spherical – because of Dyne Therapeutics’ $402.5 million public providing.

Month-to-month comparability of biotech fundraising

Beneath is a graph displaying a month-to-month comparability of personal and public biotech fundraising, trying on the complete sum of money raised monthly in 2025.

Surprisingly, December 2025 turned out to be an excellent month for each private and non-private fundraising, regardless of it often being a quieter time of 12 months as a result of holidays. Public corporations got here out on high, bringing in a complete of $2.556 billion for the month, whereas non-public corporations additionally carried out very nicely, attracting a complete of $2.158 billion. 

In fact, as final month was December, it additionally means we now have a transparent image of the whole lot of 2025’s total fundraising panorama. Finally, we will see that October turned out to be the perfect month of the 12 months for each non-public and public fundraising.