Maher Masoud - 13 Aug 2025 Form 4 Insider Report for MAXCYTE, INC. (MXCT)

Role: President and CEO, Director
Signature: /s/ David Sandoval, Attorney-in-Fact
Issuer symbol: MXCT
Transactions as of: 13 Aug 2025
Net transactions value: +$102,915
Form type: 4
Filing time: 13 Aug 2025, 19:47:52 UTC
Previous filing: 18 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Masoud Maher	President and CEO, Director	C/O MAXCYTE, INC., 9713 KEY WEST AVENUE, SUITE 400, ROCKVILLE	/s/ David Sandoval, Attorney-in-Fact	13 Aug 2025	0001874571

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MXCT	Common Stock	Purchase	$102,915	+75,000	+75%	$1.37	175,000	13 Aug 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares were purchased in multiple transactions at prices ranging from $1.29 to $1.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.