VC firms
Willett Advisors LLC (“Willett”) manages the philanthropic assets of Michael R. Bloomberg, including the assets of Bloomberg Philanthropies.
Overview
Investment Stage
Series B; Series D
Portfolio 3
| Date | Name | Website | Total Raised | Location |
| Sign up to see | Sign up to see | Sign up to see | Sign up to see | Sign up to see |
| Jan 12, 2026 | Kinaset Therapeutics | kinasettx.com | $103M | United States |
| Nov 7, 2025 | AAVantgarde Bio | aavantgardebio.com | $141M | Italy |
Mentions in press and media 17
| Date | Title | Description |
| Sign up to see | Sign up to see | Sign up to see |
| Jun 16, 2026 | Cellares Secures $327M, Revolutionizing Cell Therapy Manufacturing Globally | Cellares closed its Series D funding at $327 million, backed by ARK Invest, Prime Radiant Partners, and other major investors. This capital drives global expansion of its automated cell therapy manufacturing. The IDMO model and Smart Factor... |
| Jun 15, 2026 | Cellares Expands Series D To $327 Million With $50 Million Investment From Prime Radiant Partners | Cellares announced that Prime Radiant Partners has invested $50 million in the company’s Series D financing, bringing the total round to $327 million and providing additional capital to support commercial operations, a planned initial publi... |
| Jun 9, 2026 | Cellares Receives $20M Investment from ARK Invest | Cellares, a South San Francisco, CA-based Integrated Development and Manufacturing Organization (IDMO), received a $20m investment from ARK Invest. ARK Invest joined the company’s Series D financing, bringing the total Series D to $277m. AR... |
| Jan 30, 2026 | Cellares Secures $257M to Industrialize Cell Therapy Manufacturing | Cellares, a leading Integrated Development and Manufacturing Organization (IDMO), just secured $257 million in Series D funding. This pivotal round, co-led by investment giants BlackRock and Eclipse, elevates Cellares' total capital to an i... |
| Jan 29, 2026 | Cellares: $257 Million Series D Closed To Scale Automated Cell Therapy Manufacturing | Cellares has raised $257 million in a Series D financing co-led by investment funds managed by BlackRock and Eclipse, bringing total capital raised to $612 million. The round brings in a slate of new investors, including accounts advised by... |
| Jan 28, 2026 | Cellares Raises $257M in Series D Funding | Cellares, a San Francisco, CA-based Integrated Development and Manufacturing Organization (IDMO), raised $257M in Series D funding. The round was led by BlackRock and Eclipse. Other investors included T. Rowe Price Investment Management, In... |
| Jan 13, 2026 | Kinaset Therapeutics Secures $103M for Severe Asthma Drug Advancement | Kinaset Therapeutics obtained $103 million in Series B funding. This capital fuels the development of frevecitinib. Frevecitinib is an innovative inhaled pan-JAK inhibitor. It targets severe asthma and other serious respiratory diseases. Th... |
| Jan 12, 2026 | Kinaset Therapeutics Raises $103M in Series B Funding | Kinaset Therapeutics, a Boston, MA-based clinical-stage biopharmaceutical company, raised $103M in Series B funding. The round was led by RA Capital Management and Forge Life Science Partners, with participation from new investors EQT Life ... |
| Jan 12, 2026 | EQT Life Sciences backs Kinaset Therapeutics’ USD103 million Series B to advance inhaled therapeutic for treatment of respiratory diseases | EQT Life Sciences backs Kinaset Therapeutics’ USD103 million Series B to advance inhaled therapeutic for treatment of respiratory diseases Mon, Jan 12, 2026 13:00 CET Report this content EQT Life Sciences invests in U.S.-based Kinaset Thera... |
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FAQ about Willett Advisors
How many startups has Willett Advisors invested in?
Willett Advisors has 3 portfolio companies on Parsers VC, among them Kinaset Therapeutics and AAVantgarde Bio.
What has the press written about Willett Advisors?
Parsers VC has collected 17 articles mentioning Willett Advisors, among them “Cellares Secures $327M, Revolutionizing Cell Therapy Manufacturing Globally” (Jun 16, 2026) and “Cellares Expands Series D To $327 Million With $50 Million Investment From Prime Radiant Partners” (Jun 15, 2026).
Is Willett Advisors still active?
Yes, Willett Advisors is active; its latest activity on Parsers VC dates from Sep 1, 2026.