Synopsis:
Nimbus Therapeutics CEO Abbas Kazimi walks Alok Tayi through the company’s evolving pipeline and playbook for choosing the right risks in a noisy biotech environment. From Werner helicase for MSI-high cancers to a highly selective SIK2 program and GLP-1–adjacent strategies focused on body composition, Abbas details how Nimbus balances rigor, speed, and capital efficiency.
He shares candid lessons from pausing and later resurrecting AMPK beta in partnership with Eli Lilly, the decision to remain modality-agnostic but small-molecule-centric, and the importance of knowing when not to chase the latest fad. Throughout, Abbas returns to a consistent theme: success at Nimbus comes from disciplined target selection, deep collaboration, and a culture that empowers teams to make hard calls in service of patients rather than headlines.
Biography:
Abbas Kazimi is the Chief Executive Officer of Nimbus Therapeutics. Previously, he served as Chief Business Officer, leading the company’s strategic and corporate development efforts while overseeing business operations. Since joining Nimbus in 2014, he has helped raise over $630 million in equity financing and led transactions totaling more than $8 billion.
Notably, Mr. Kazimi spearheaded the $6 billion sale of Nimbus’s TYK2 program to Takeda, the $1.2 billion sale of its NASH (ACC) program to Gilead, and multiple licensing deals exceeding $1.5 billion with partners such as Genentech, Celgene/Roche, and Eli Lilly. Under his leadership, Nimbus has advanced four programs into the clinic, returned over $4 billion to investors, and continues to expand its computational drug discovery and clinical development capabilities.
In 2025, Mr. Kazimi joined the board of Unnatural Products (UNP), a biotech company pioneering orally delivered macrocyclic peptides to tackle previously undruggable targets. He also serves on the Editorial Advisory Board for In Vivo magazine, a leading publication offering strategic insights and analysis of the pharmaceutical, biotechnology, medtech, and consumer health industries. Along with his family, he established the Kazimi Family Endowment for Data Science in Oncology at MD Anderson Cancer Center. This endowment reflects their personal commitment to philanthropy and their vision for revolutionizing cancer treatment through data-driven innovation.
At the core of Mr. Kazimi’s leadership is a deep sense of purpose—one that seeks to change the trajectory of medical diagnoses where options are limited. The ability to give patients, prescribers, and families a new outlook on life is a powerful responsibility—and one he knows the biopharmaceutical sector has the ability to fulfill.
Before Nimbus, he was at Extera Partners, LLC (formerly PureTech Development, LLC), where he provided strategic advisory, supported fundraising, and executed numerous business development transactions. Earlier in his career, he was with JSB-Partners, LP, a specialized investment banking and advisory firm serving biotech and pharmaceutical companies.
Mr. Kazimi holds a B.A. from the University of Texas at Austin and an M.S. from Harvard University.
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Synopsis:
Nimbus Therapeutics CEO Abbas Kazimi walks Alok Tayi through the company’s evolving pipeline and playbook for choosing the right risks in a noisy biotech environment. From Werner helicase for MSI-high cancers to a highly selective SIK2 program and GLP-1–adjacent strategies focused on body composition, Abbas details how Nimbus balances rigor, speed, and capital efficiency.
He shares candid lessons from pausing and later resurrecting AMPK beta in partnership with Eli Lilly, the decision to remain modality-agnostic but small-molecule-centric, and the importance of knowing when not to chase the latest fad. Throughout, Abbas returns to a consistent theme: success at Nimbus comes from disciplined target selection, deep collaboration, and a culture that empowers teams to make hard calls in service of patients rather than headlines.
Biography:
Abbas Kazimi is the Chief Executive Officer of Nimbus Therapeutics. Previously, he served as Chief Business Officer, leading the company’s strategic and corporate development efforts while overseeing business operations. Since joining Nimbus in 2014, he has helped raise over $630 million in equity financing and led transactions totaling more than $8 billion.
Notably, Mr. Kazimi spearheaded the $6 billion sale of Nimbus’s TYK2 program to Takeda, the $1.2 billion sale of its NASH (ACC) program to Gilead, and multiple licensing deals exceeding $1.5 billion with partners such as Genentech, Celgene/Roche, and Eli Lilly. Under his leadership, Nimbus has advanced four programs into the clinic, returned over $4 billion to investors, and continues to expand its computational drug discovery and clinical development capabilities.
In 2025, Mr. Kazimi joined the board of Unnatural Products (UNP), a biotech company pioneering orally delivered macrocyclic peptides to tackle previously undruggable targets. He also serves on the Editorial Advisory Board for In Vivo magazine, a leading publication offering strategic insights and analysis of the pharmaceutical, biotechnology, medtech, and consumer health industries. Along with his family, he established the Kazimi Family Endowment for Data Science in Oncology at MD Anderson Cancer Center. This endowment reflects their personal commitment to philanthropy and their vision for revolutionizing cancer treatment through data-driven innovation.
At the core of Mr. Kazimi’s leadership is a deep sense of purpose—one that seeks to change the trajectory of medical diagnoses where options are limited. The ability to give patients, prescribers, and families a new outlook on life is a powerful responsibility—and one he knows the biopharmaceutical sector has the ability to fulfill.
Before Nimbus, he was at Extera Partners, LLC (formerly PureTech Development, LLC), where he provided strategic advisory, supported fundraising, and executed numerous business development transactions. Earlier in his career, he was with JSB-Partners, LP, a specialized investment banking and advisory firm serving biotech and pharmaceutical companies.
Mr. Kazimi holds a B.A. from the University of Texas at Austin and an M.S. from Harvard University.
Steve Tregay on Leading Mission BioCapital as Managing Partner & Fueling Early-Stage Biotech
Biotech 2050 Podcast
41 minutes 54 seconds
7 months ago
Steve Tregay on Leading Mission BioCapital as Managing Partner & Fueling Early-Stage Biotech
Synopsis:
Building in biotech isn’t for the faint of heart—especially during a market downturn.
But that’s exactly when Steve Tregay, Managing Partner at Mission BioCapital, thrives. A seasoned entrepreneur and founder of Forma Therapeutics, Steven has navigated biotech’s toughest cycles—and emerged stronger each time.
Hosted by Rahul Chaturvedi, this conversation dives into what it really takes to launch and scale biotech companies: from mastering the evolution of the CEO role to raising nearly $900M through strategic partnerships, to knowing when it’s time to pass the torch.
Steve also shares how Mission BioCapital is rewriting the playbook for early-stage innovation through its Platinum Program, offering $500K and lab access to science founders ready to launch bold new ideas.
Real talk, real strategies, and a blueprint for building lasting biotech companies—especially when its hardest.
Biography:
Steve Tregay, PhD is a Managing General Partner based in our Cambridge office. He focuses on new therapeutics investments with a particular emphasis on company creation opportunities as well as on overall management of the firm. Within the Mission BioCapital portfolio, he is currently founding CEO and board member of Arclight Therapeutics, LLC, a founding board member at Jupiter BioVentures LLC, and has board roles at Vedere Bio and Nocion Therapeutics. In addition, Steve serves as Chairman of the Board of Directors at LabCentral. He is a Harvard Blavatnik Biomedical Accelerator Advisory Committee member and is a member of the board of advisors for the non-profit Life Sciences Cares.
Previously, Steve was the Founder and CEO of FORMA Therapeutics. Additional roles held prior to his engagement at FORMA include Managing Director for the Novartis Venture Fund and Executive Director & Head of Strategic Alliances for Oncology, Ophthalmology and Technologies at the Novartis Institutes for BioMedical Research. Prior to Novartis, he held roles in research and business development at Array BioPharma.
Steve received his doctoral and Master’s degrees in organic chemistry from Harvard University and a Bachelor’s from Davidson College.
Biotech 2050 Podcast
Synopsis:
Nimbus Therapeutics CEO Abbas Kazimi walks Alok Tayi through the company’s evolving pipeline and playbook for choosing the right risks in a noisy biotech environment. From Werner helicase for MSI-high cancers to a highly selective SIK2 program and GLP-1–adjacent strategies focused on body composition, Abbas details how Nimbus balances rigor, speed, and capital efficiency.
He shares candid lessons from pausing and later resurrecting AMPK beta in partnership with Eli Lilly, the decision to remain modality-agnostic but small-molecule-centric, and the importance of knowing when not to chase the latest fad. Throughout, Abbas returns to a consistent theme: success at Nimbus comes from disciplined target selection, deep collaboration, and a culture that empowers teams to make hard calls in service of patients rather than headlines.
Biography:
Abbas Kazimi is the Chief Executive Officer of Nimbus Therapeutics. Previously, he served as Chief Business Officer, leading the company’s strategic and corporate development efforts while overseeing business operations. Since joining Nimbus in 2014, he has helped raise over $630 million in equity financing and led transactions totaling more than $8 billion.
Notably, Mr. Kazimi spearheaded the $6 billion sale of Nimbus’s TYK2 program to Takeda, the $1.2 billion sale of its NASH (ACC) program to Gilead, and multiple licensing deals exceeding $1.5 billion with partners such as Genentech, Celgene/Roche, and Eli Lilly. Under his leadership, Nimbus has advanced four programs into the clinic, returned over $4 billion to investors, and continues to expand its computational drug discovery and clinical development capabilities.
In 2025, Mr. Kazimi joined the board of Unnatural Products (UNP), a biotech company pioneering orally delivered macrocyclic peptides to tackle previously undruggable targets. He also serves on the Editorial Advisory Board for In Vivo magazine, a leading publication offering strategic insights and analysis of the pharmaceutical, biotechnology, medtech, and consumer health industries. Along with his family, he established the Kazimi Family Endowment for Data Science in Oncology at MD Anderson Cancer Center. This endowment reflects their personal commitment to philanthropy and their vision for revolutionizing cancer treatment through data-driven innovation.
At the core of Mr. Kazimi’s leadership is a deep sense of purpose—one that seeks to change the trajectory of medical diagnoses where options are limited. The ability to give patients, prescribers, and families a new outlook on life is a powerful responsibility—and one he knows the biopharmaceutical sector has the ability to fulfill.
Before Nimbus, he was at Extera Partners, LLC (formerly PureTech Development, LLC), where he provided strategic advisory, supported fundraising, and executed numerous business development transactions. Earlier in his career, he was with JSB-Partners, LP, a specialized investment banking and advisory firm serving biotech and pharmaceutical companies.
Mr. Kazimi holds a B.A. from the University of Texas at Austin and an M.S. from Harvard University.
