Company: RNLXY
Filing Date: 2025-07-29
Form Type: POS AM
Source: 0001213900-25-068777
Chunk: 2

Company: Renalytix plc
Filing Date: 2025-07-29
Form: POS AM
Chunk 2
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 offering, the Registrant hereby removes and
withdraws from registration any and all securities registered pursuant to the Registration Statement that remain unsold as of the date
hereof.

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SIGNATURE</div>

Pursuant to the requirements of the Securities
Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form
S-3 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City
of London, United Kingdom, on July 29, 2025.

| RENALYTIX PLC |                      |                         |
| By:           | /s/ James McCullough |                         |
|               | Name:                | James McCullough        |
|               | Title:               | Chief Executive Officer |

No other person is required to sign this Post-Effective Amendment
in reliance upon Rule 478 under the Securities Act of 1933, as amended.

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