Tim Walbert

Managing Partner, HRZN Partners LLC; Sr. Advisor, Amgen; Sr. Advisor, Patient Square Capital

📍 Deerfield, Illinois, United States🔄 Updated September 2026💼 18 investments📅 16 years investing🗓 Last invested May 2026𝕏 @upgrade_to_unlock
VC🌍 United StatesInvested this year
18
Total investments
1
Early stage
4
Mid stage
3
Late stage
16y
Years active

Portfolio

9 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
May 2026
Kardigan is a patient-driven heart health company that is modernizing cardiovascular drug development to deliver medicines that move patients beyond symptom management to functional cures. By matching critical disease drivers with treatment responders identified in clinical trials, Kardigan is developing a portfolio of medicines that modify the underlying cardiovascular disease pathophysiology to get patients closer to the cures they deserve. Kardigan has significant East and West Coast operations and focus. For more information about Kardigan, please visit kardigan.bio. If you are interested in joining our passionate and driven team with deep cardiovascular, biotechnology and operational expertise, please visit kardigan.bio or the careers tab of this page.
Board Member
Feb 2026
Crystalys is a clinical-stage biopharmaceutical company transforming the treatment of gout. Co-founded by Novo Holdings and Catalys Pacific, Crystalys brings together a world-class team with deep expertise in gout drug development, dedicated to delivering more effective options for people living with gout. Dotinurad, the company’s lead candidate and next-generation URAT1 inhibitor with best-in-class potential for safety and efficacy, is being advanced into global Phase 3 trials as a second-line therapy for gout, supported by extensive clinical data from approvals in multiple Asian markets.
Board Member
Aug 2024
At Odyssey, we are creating next generation precision medicines for patients with cancer and inflammatory diseases with class-leading speed, efficiency and rigor through our highly integrated drug hunting engine. In response to recent recruitment fraud, visit our Careers page to verify all job opportunities and read our guidance on this topic: https://odysseytx.com/careers/
Board Member
Jun 2024
COUR is a clinical-stage biotechnology company working to reprogram the immune system to restore health in people suffering from autoimmune diseases. Using our proprietary COUR nanoparticle (CNP) platform for antigen-specific immune tolerance, we develop first-in-class disease-modifying therapies that target disease at its root—without suppressing normal immune system function. With programs in primary biliary cholangitis (PBC), type 1 diabetes (T1D), myasthenia gravis (MG), and celiac disease, COUR is advancing a new standard for immune-modifying therapies.
Board Member
Apr 2024
Sagimet Biosciences is a clinical-stage biopharmaceutical company focused on developing novel therapeutics to treat important diseases such as the liver disease NASH and specific cancers, with focus on targeting dysfunctional metabolic pathways. The company has unique expertise in FASN biology and has created a platform of proprietary FASN inhibitors. For more information, please visit www.sagimet.com.
Board Member
Apr 2023
Mirum Pharmaceuticals is a leading rare disease company with a global footprint of approved products and a broad pipeline of investigational medicines. Purpose-built to bring forward breakthrough medicines for people with overlooked conditions, Mirum combines deep rare disease expertise with strong connections to patient communities. The company’s commercial portfolio includes LIVMARLI® (maralixibat) for Alagille syndrome (ALGS) and progressive familial intrahepatic cholestasis (PFIC), CHOLBAM® (cholic acid) for bile-acid synthesis disorders, and CTEXLI® (chenodiol) for cerebrotendinous xanthomatosis (CTX). Mirum’s clinical-stage pipeline includes volixibat, an IBAT inhibitor in late-stage development for primary sclerosing cholangitis (PSC) and primary biliary cholangitis (PBC), brelovitug, a fully human monoclonal antibody in late-stage development for chronic hepatitis delta virus (HDV) and MRM-3379, a PDE4D inhibitor being evaluated for Fragile X syndrome (FXS). Mirum’s success is driven by a team dedicated to advancing high impact medicines through strategic development, disciplined execution and purposeful collaboration across the rare disease ecosystem. Learn more at www.mirumpharma.com.
Board Member
Oct 2022
Our genetically-engineered, universal iPSCs-derived immune effector cell products (NK, T, Dendritic cells, and macrophage) are designed to specifically target hematologic and solid tumor cancers. Our commitment to developing off-the-shelf cell therapies will expand patient access and provides an unparalleled opportunity to advance the course of cancer care. Please note Century Therapeutics does not solicit prospective Colleagues directly via Telegram (or other social media sites), or require potential candidates to make purchases of goods or services.
mid stageBiotechnology
Board Member
Apr 2020
Aurinia is a fully integrated biopharmaceutical company focused on delivering therapies to treat targeted patient populations that are impacted by serious diseases with a high unmet medical need. In January 2021, the Company introduced the first FDA-approved oral therapy indicated for the treatment of adult patients with active lupus nephritis (LN). Aurinia’s head office is in Victoria, British Columbia; its U.S. commercial hub is in Rockville, Maryland; and the Company focuses development efforts globally. Follow us on Twitter at @AuriniaPharma and on LinkedIn.
Board Member
Jul 2019
Exicure, Inc. is an early-stage biotechnology company developing nucleic acid therapies targeting ribonucleic acid against validated targets to neurological disorders and hair loss. Our team includes a diverse scientific group with expertise in nucleic acid chemistry, drug development and neuroscience. Headquartered in Chicago, IL, Exicure conducts its discovery and development efforts in-house with a dedicated 30,000 sq. ft. facility, including rapid and automated high throughput nucleic acid synthesis and screening. Our platform for therapeutic nucleic acids demonstrates high potency, broad uptake, and prolonged efficacy in both in vitro and in vivo neurological models. The basis of our discovery approach harnesses our expertise in oligonucleotide chemistry to validated targets where we can screen thousands of oligonucleotides efficiently and validate top candidates in the appropriate cell and live animal models. Exicure's lead program is a non-opioid pain analgesic directed against the genetically validated target SCN9A (Nav1.7). Exicure has also identified several promising candidates across a series of CNS conditions with high unmet need including Huntington disease, Angelman syndrome, Batten disease, spinocerebellar ataxia, and sporadic amyotrophic lateral sclerosis.
Experience · 21 entries
All (21)
Investments (18)
Board (18)
2026
Board Member
May 2026
Kardigan is a patient-driven heart health company that is modernizing cardiovascular drug development to deliver medicines that move patients beyond symptom management to functional cures. By matching critical disease drivers with treatment responders identified in clinical trials, Kardigan is developing a portfolio of medicines that modify the underlying cardiovascular disease pathophysiology to get patients closer to the cures they deserve. Kardigan has significant East and West Coast operations and focus. For more information about Kardigan, please visit kardigan.bio. If you are interested in joining our passionate and driven team with deep cardiovascular, biotechnology and operational expertise, please visit kardigan.bio or the careers tab of this page.
Sr. Advisor
May 2026
Patient Square Capital is a dedicated health care investment firm with $19 billion in assets under management as of May 9, 2026. The firm aims to achieve strong investment returns by partnering with growth-oriented companies and top-tier management teams whose products, services, and technologies improve health. Patient Square utilizes deep industry expertise, a broad network of relationships, and a partnership approach to make investments in companies that will grow and thrive. Patient Square invests in businesses that strive to improve patient lives, strengthen communities, and create a healthier world. For more information, visit www.patientsquarecapital.com.
Board Member
Feb 2026
Crystalys is a clinical-stage biopharmaceutical company transforming the treatment of gout. Co-founded by Novo Holdings and Catalys Pacific, Crystalys brings together a world-class team with deep expertise in gout drug development, dedicated to delivering more effective options for people living with gout. Dotinurad, the company’s lead candidate and next-generation URAT1 inhibitor with best-in-class potential for safety and efficacy, is being advanced into global Phase 3 trials as a second-line therapy for gout, supported by extensive clinical data from approvals in multiple Asian markets.
2025
Board Member
Feb 2025
Founded in 1997, BioMarin is a global biotechnology company dedicated to transforming lives through genetic discovery. The company develops and commercializes targeted therapies that address the root cause of the genetic conditions that it seeks to treat, helping to better the lives of those struggling with rare genetic disease. BioMarin discoveries have led to eight first or best-in-class commercial treatments and a pipeline of multiple product candidates applying the same science-driven, patient-forward approach to broader group of genetic disorders. The more innovative solutions developed, the more lives BioMarin can impact. Recruitment Fraud Alert Notice Please be aware of fraud or scams from individuals, organizations and/or internet sites claiming to represent BioMarin in recruitment activities. We have an established recruitment process which is required for all posted positions by BioMarin prior to issuing an offer of employment. This BioMarin process requires formal interviews conducted live with personnel representing BioMarin and never requires payments or fees from job applicants. BioMarin does not conduct interviews via texting tools such as RingCentral. In the event you receive a suspicious email message about recruiting on behalf of BioMarin, unless it’s from a BioMarin authorized recruiting partner, do not provide any personal information or pay any fees. Qualified and interested candidates should apply to current openings directly through this BioMarin website. BioMarin accepts no responsibility for any costs or charges incurred as a result of fraudulent activity. If you have lost money or provided your personal identifying information, please contact your bank and report the matter to the FBI via www.ic3.gov. We would also suggest you notify your local police department and monitor your credit. We appreciate your interest in BioMarin & encourage you to visit http://careers.biomarin.com/career-areas to review job opportunities.
Board Member
Feb 2025
Championing the missions that matter™. Catalent, Inc. is a leading global contract development and manufacturing organization (CDMO) and trusted partner to pharma, biotech, and consumer health companies worldwide. We put patients first in everything we do, helping people live better and healthier lives through every product we help develop, manufacture and deliver. With over 1,000 active development programs at any given time, we launch over 100 new products and line extensions annually. Catalent has supported half of all FDA approvals over the past decade, and our teams working at over 40 global sites help us produce over 60 billion doses every year. Our strength lies in our people: teams across our more than 40 sites and thousands of passionate scientists and technicians who bring expertise in development sciences, delivery technologies, and multi-modality manufacturing. What unites us is our commitment to championing our partners’ missions as our own, anticipating customer needs, solving complex challenges and ultimately making a difference in the lives of patients across the globe. At Catalent, you will be able to directly have an impact, solving problems and ensuring excellence for our customers. Our focus on delivering meaningful outcomes alongside our customers means your work directly impacts millions of people around the world. Join us in championing the missions that matter. Catalent is headquartered in Tampa, Florida, with over 40 global sites. Visit www.catalent.com to learn more.
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Investment activity
2010–2026 · 18 investments
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