As a global leader in biosimulation based on 2021 revenue, we provide an integrated, end-to-end platform used by more than 2,000 clients including biopharmaceutical companies, regulatory agencies and academic institutions across 62 countries, including 38 of the top 40 biopharmaceutical companies by research and development spend in 2020. Since 2014, customers who use our biosimulation software and technology-driven services have received 90% of all new drug approvals by the FDA. Moreover, 17 global regulatory authorities license our biosimulation software to independently analyze, verify, and review regulatory submissions, including the FDA, Health Canada, Japan’s PMDA, and China’s NMPA. Demand for our offerings continues to expand rapidly.
We build our biosimulation technology on first principles of biology, chemistry, and pharmacology with proprietary mathematical algorithms that model how medicines and diseases behave in the body. For over two decades, we have honed and validated our biosimulation technology with an abundance of data from scientific literature, lab research, and preclinical and clinical studies. In turn, our customers use biosimulation to conduct virtual trials to answer critical questions, such as: What will be the human response to a drug based on preclinical data? How will other drugs interfere with this new drug? What is a safe and efficacious dose for children, the elderly, or patients with pre-existing conditions? Virtual trials may be used to optimize dosing on populations that are otherwise difficult to study for ethical or logistical reasons, such as infants, pregnant women, the elderly, and cancer patients.
Biosimulation results need to be incorporated into regulatory documents for compelling submissions. Accordingly, we provide regulatory science solutions and integrate them with biosimulation so that our customers can navigate the complex and evolving regulatory landscape and maximize their chances of approval. Our differentiated regulatory services are powered by submissions management software and natural language processing for scalability and speed, allowing us to deliver more than 250 regulatory submissions over the past four years. Our team of regulatory professionals has extensive experience applying industry guidelines and global regulatory requirements.
The final hurdle to delivering medicines to patients is market access, defined as strategies, processes, and activities to ensure that therapies are available to patients at the right price. We believe that biosimulation and market access will continue to be increasingly intertwined as health systems and countries move toward outcomes-based pricing. We have expanded into market access solutions, which help our customers understand the real-world impact of therapies and dosing regimens earlier in the process and effectively communicate this to payors and health authorities. Our solutions are underpinned by SaaS-based value communication tools.
With continued innovation in and adoption of our biosimulation software, technology, and services, we believe more biopharmaceutical companies worldwide will leverage more of our end-to-end platform to reduce cost, accelerate speed to market, and ensure safety and efficacy of medicines for all patients.
Public Offering
On March 29, 2021, we completed an underwritten secondary public offering in which certain selling stockholders, including EQT, sold 11,500,000 shares of our common stock, which included 1,500,000 shares of common stock pursuant to the full exercise of the underwriters’ option to purchase additional shares. We did not offer any common stock in that transaction and did not receive any proceeds from the sale of the shares of common stock by the selling stockholders. We incurred cost of $1.1 million in relation to the secondary public offering.
On September 13, 2021, we completed another public offering, at a public offering price of $31.00 per share, pursuant to which we sold 4,500,000 shares of our common stock, and certain selling stockholders sold 18,500,000 shares of our common stock, which included 3,000,000 shares of common stock pursuant to the full exercise of the underwriters’ option to purchase additional shares. We received net proceeds of $134.1 million, after deducting underwriters' discounts and commissions. In addition, $0.7 million of legal, accounting and other offering costs incurred in connection with the sale of our common stock in the public offering, were capitalized and offset against the proceeds received.
On November 22, 2021, we completed another secondary public offering in which certain selling stockholders, including EQT, sold 10,000,000 shares of our common stock. We did not offer any common stock in this transaction and did not receive any proceeds from the sale of the shares of common stock by the selling stockholders. We incurred costs of $0.6 million, recorded in general and administrative expenses, in relation to the secondary public offering.