MAXCYTE, INC. — Director's Dealing 2025

Jan 31, 2025

National Storage Mechanism | Additional information

RNS Number : 5186V

MaxCyte, Inc.

31 January 2025

MaxCyte, Inc.

("MaxCyte" or the "Company")

Exercise of options and PDMR dealing

ROCKVILLE, MD, January 31, 2025: 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 therapeutics, announces that on 27 January 2025, as per a filing lodged with the U.S. Securities and Exchange Commission, John Johnston, a Non-Executive Director of the Company , exercised options over 3,000 shares of common stock of $0.01 of the Company ("Common Stock") ("Exercise") in aggregate. The 3,000 new shares of Common Stock were issued pursuant to the Company's existing its block admission facility and were sold by John Johnston at a price range between $4.520 and $4.720 per Common Stock ("Sale"). The sold shares represent approximately 0.9% of John Johnston's total equity and option holdings in the Company's stock capital, respectively.

Following the Exercise and Sale, John Johnston holds 120,583 shares of Common Stock representing 0.1% of the issued stock capital of the Company. Following the Exercise, John Johnston holds a further 171,918 options over Common Stock and 21,367 restricted stock units.

The sales and option exercises were effected pursuant to a Rule 10b5-1 trading plan adopted by John Johnston on 19 December 2023 relating solely to the sale of shares acquired from exercise of options that expire on 18 July 2028.

MaxCyte Contacts:

US IR Adviser Gilmartin Group David Deuchler, CFA	+1 415-937-5400 [email protected]
Nominated Adviser and Joint Corporate Broker Panmure Liberum Emma Earl / Freddy Crossley Corporate Broking Rupert Dearden	+44 (0)20 7886 2500
UK IR Adviser ICR Healthcare Mary-Jane Elliott Chris Welsh	+44 (0)203 709 5700 [email protected]

About MaxCyte

At MaxCyte, we pursue cell engineering excellence to maximize the potential of cells to improve patients' lives. We have spent more than 25 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 human health . Learn more at  maxcyte.com  and follow us on  X  and  LinkedIn .

NOTIFICATION AND PUBLIC DISCLOSURE OF TRANSACTIONS BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES AND PERSONS CLOSELY ASSOCIATED WITH THEM

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	John Johnston
2	Reason for the notification
a)	Position/status	Non-Executive Director
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	MaxCyte, Inc.
b)	LEI	54930053YHXULRFCU991
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument	Common Stock of $0.01 each
Identification code	US57777K1060
b)	Nature of the transaction	Exercise of Options over common stock
c)	Price(s) and volume(s)
		Exercise Price(s)	Volume(s)
		$2.932	3,000
d)	Aggregated information
- Aggregated volume	3,000
- Price	$2.932
e)	Date of the transaction	27 January 2025
f)	Place of the transaction	US Stock Exchange, Nasdaq

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	John Johnston
2	Reason for the notification
a)	Position/status	Non-Executive Director
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	MaxCyte, Inc.
b)	LEI	54930053YHXULRFCU991
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument	Common Stock of $0.01 each
Identification code	US57777K1060
b)	Nature of the transaction	Sale of common stock
c)	Price(s) and volume(s)
		Exercise Price(s)	Volume(s)
		$4.5200	100
		$4.5300	200
		$4.5600	100
		$4.6000	300
		$4.6400	200
		$4.6600	500
		$4.6700	1300
		$4.6850	100
		$4.7000	100
		$4.7200	100
d)	Aggregated information
- Aggregated volume	3,000
- Price	$4.6445
e)	Date of the transaction	27 January 2025
f)	Place of the transaction	US Stock Exchange, Nasdaq

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