MaxCyte : Participation in Upcoming Investor Conference

MaxCyte to Participate in William Blair 44^th Annual Growth Stock Conference

Rockville, MD, May 29, 2024- MaxCyte, Inc., (NASDAQ: MXCT; LSE: MXCT), a leading, cell-engineering focused company providing enabling platform technologies to advance the discovery, development and commercialization of next-generation cell-based therapeutics and innovative bioprocessing applications, today announced Company management will participate at the William Blair 44^th Annual Growth Stock Conference on Wednesday, June 5^th at 2:40 pm CT.

A live and archived webcast of the event will be available on the "Events" section of the MaxCyte investor relations website at https://investors.maxcyte.com/.

About MaxCyte

At MaxCyte, we pursue cell engineering excellence to maximize the potential of cells to improve patients' lives. We have spent more than 20 years honing our expertise by building best-in-class platforms, perfecting the art of the transfection workflow, and venturing beyond today's processes to innovate tomorrow's solutions. Our ExPERT™ platform, which is based on our Flow Electroporation® technology, has been designed to support the rapidly expanding cell therapy market and can be utilized across the continuum of the high-growth cell therapy sector, from discovery and development through commercialization of next-generation, cell-based medicines. The ExPERT family of products includes: four instruments, the ATx™, STx™, GTx™ and VLx ™; a portfolio of proprietary related processing assemblies or disposables; and software protocols, all supported by a robust worldwide intellectual property portfolio. By providing our partners with the right technology platform, as well as scientific, technical and regulatory support, we aim to guide them on their journey to transform humanhealth. Learn more atmaxcyte.comand follow us onX(formerly Twitter) andLinkedIn.

MaxCyte Contacts:

US IR Adviser

Gilmartin Group

David Deuchler, CFA

[phone]

[e-mail]

US Media Relations

Spectrum Seismic Collaborative

Anya Bolshem

[e-mail]

Nominated Adviser and Joint Corporate Broker

Panmure Gordon

Emma Earl / Freddy Crossley

Corporate Broking

Rupert Dearden

[phone]

UK IR Adviser

ICR Consilium

Mary-Jane Elliott

Chris Welsh

[phone]

[e-mail]