13D Filings
MAXCYTE, INC.
MXCT
Initial Filing
Ownership

0.80%

Total Shares

834,100

Issuer CIK

1287098

Event Date

Jul 30, 2026

Accepted

Aug 4, 2026, 08:42 AM

Reporting Persons (1)
NameType% of ClassAggregateSole VotingShared Voting
RIVER GLOBAL INVESTORS LLP
Investment Company
0.80%834,100834,1000
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

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

Convictions

No

Citizenship

United Kingdom

N/A

(b) An extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the issuer or any of its subsidiaries. As per the Announcement on 24 June 2026 (RNS Number: 4421J), the FCA has approved the change in control and proposed acquisition of River Global Holdings Limited. Subsequently, as of close of business on 31 July 2026, Liontrust Investment Partners (LIP) LLP assumed responsibility for the River Global Investors (RGI) LLP ICVC and ICAV funds. The relevant voting rights (approx 4.3%) attached to those holdings have therefore transferred from RGI LLP to LIP LLP. The remaining voting rights (approx 0.8%) continue to be held by RGI LLP and will be transferred at a later stage.

Percentage of Class

834,100.00 0.7786%

Number of Shares

834,100.00 shares

Transactions

As of Date B/S Amount Price 05/20/2026 BUY 14000 1.0443 06/16/2026 SELL 22320 1.13 07/23/2026 SELL 100000 1.1022 07/24/2026 SELL 100000 1.0873 07/27/2026 BUY 19780 1.0738 07/27/2026 SELL 275200 1.0397 07/28/2026 SELL 85400 0.9879 07/28/2026 SELL 239400 0.9978 07/29/2026 SELL 5547 1.015 07/29/2026 SELL 269453 1.0201

Shareholders

N/A

Date of 5% Ownership

07/31/2026

N/A

N/A

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