13D Filings
MAXCYTE, INC.
MXCT
Initial Filing
Ownership

5.20%

Total Shares

5,497,452

Issuer CIK

1287098

CUSIP

57777K106

Event Date

Sep 22, 2025

Accepted

Oct 24, 2025, 11:50 AM

Reporting Persons (1)
NameType% of ClassAggregateSole VotingShared Voting
RIVER GLOBAL INVESTORS LLP
Investment Company
5.20%5,497,4525,497,4520
Disclosure Items (7)

Security Title

equity

Issuer Name

MAXCYTE, INC.

Issuer Address

9713 KEY WEST AVENUE,, ROCKVILLE, MD, 20850

Filing Persons

River Global Investors LLP

Business Address

30 Coleman Street, London, EC2R 5AL, United Kingdom

Principal Occupation

River Global Investors LLP - 30 Coleman Street, London, EC2R 5AL, United Kingdom

Convictions

No

Citizenship

United Kingdom

N/A

(a) The acquisition by any person of additional securities of the issuer, or the disposition of securities of the issuer

Percentage of Class

5,497,452 5.1568%

Number of Shares

5,497,452 Shares

Transactions

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

Shareholders

N/A

Date of 5% Ownership

N/A

N/A

N/A

MAXCYTE, INC. — Schedule 13D | 13D Filings