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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13D 0001486180 XXXXXXXX LIVE equity 09/23/2025 false 0001287098 57777K106 MAXCYTE, INC. 9713 KEY WEST AVENUE, SUITE 400 ROCKVILLE MD 20850 nusayhah ghaboos 02033275025 30 Coleman street london X0 EC2R 5AL 0001486180 N RIVER GLOBAL INVESTORS LLP SC N X0 5497452.00 0.00 5497452.00 0.00 5497452.00 N 5.2 IV equity MAXCYTE, INC. 9713 KEY WEST AVENUE, SUITE 400 ROCKVILLE MD 20850 River Global Investors LLP 30 Coleman Street, London, EC2R 5AL, United Kingdom River Global Investors LLP - 30 Coleman Street, London, EC2R 5AL, United Kingdom No No United Kingdom N/A (a) The acquisition by any person of additional securities of the issuer, or the disposition of securities of the issuer 5,497,452 5.1568% 5,497,452 Shares 1) River Global Investors LLP 2) Transaction date - 23/09/2025 3) 252,702 4) 20,848 shares priced at USD1.7357 | 143,999 Shares priced at USD1.7390 | 87,755 shares priced at USD 1.5486 5) Conducted on Bloomberg AIM, purchase transaction N/A N/A N/A N/A RIVER GLOBAL INVESTORS LLP Nusayhah Ghaboos Operational Compliance Associate 10/24/2025