SEC ownership of Renalytix plc

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001811115.

Comparable stake leader

JEFFERSON RIVER CAPITAL LLC

Disclosed value leader

JEFFERSON RIVER CAPITAL LLC

Comparable rows

1/14

Latest evidence

04 Nov 2025

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
1 of 14
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
JEFFERSON RIVER CAPITAL LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
04 Nov 2025
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001811115
Issuer location
London

Ownership snapshot

Top shareholders of Renalytix plc (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
JEFFERSON RIVER CAPITAL LLC
Disclosed value leader
JEFFERSON RIVER CAPITAL LLC
Comparable rows
1/14
Latest evidence
04 Nov 2025
13D/G 3/4/5 Lead comparable stake: 4.5% 13 rows are not safely comparable across share classes. 13D/G row: JEFFERSON RIVER CAPITAL LLC Showing 1-8 of 14 holder rows.

Quick read

JEFFERSON RIVER CAPITAL LLC leads the comparable SEC ownership view at 4.5%.

1 of 14 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens JEFFERSON RIVER CAPITAL LLC's linked filing trail.
Comparable ownership Top 1
JEFFERSON RIVER CAPITAL LLC 4.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 14 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
JEFFERSON RIVER CAPITAL LLC
13D/G
4.5%
$82,899,330
19,644,391 shares
$0 04 Nov 2025
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
3/4/5
10%+ Owner
mixed-class rows
$3,791,344
35,015,237 shares
mixed-class rows
01 Nov 2024
Christopher Mills
3/4/5
Director, 10%+ Owner
mixed-class rows
$2,518,126
10,167,500 shares
mixed-class rows
20 Nov 2023
James Renwick McCullough
3/4/5
Chief Executive Officer, Director
mixed-class rows
$686,597
3,621,403 shares
mixed-class rows
06 Jul 2023
O James Sterling
3/4/5
Chief Financial Officer
mixed-class rows
$451,309
2,380,396 shares
mixed-class rows
06 Jul 2023
Fergus Fleming
3/4/5
Chief Technical Officer, Director
mixed-class rows
$142,370
922,383 shares
mixed-class rows
06 Jul 2023
Timothy J. Scannell
3/4/5
Director
class O/S missing
$17,241
68,964 shares
01 Jul 2023
Thomas H. Mclain
3/4/5
President
mixed-class rows
$14,788
259,150 shares
mixed-class rows
10 Jul 2023
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 12 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-14 of 14 reporting-owner rows connected to Renalytix plc. Open a relationship link for the CIK-to-CIK filing trail.

Rows
14
Largest Forms 3/4/5 holder
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Net 12M change
$0
Latest report
01 Nov 2024
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI 10%+ Owner $3,791,344 Mixed 01 Nov 2024
Christopher Mills Director, 10%+ Owner $2,518,126 Mixed 20 Nov 2023
James Renwick McCullough Chief Executive Officer, Director $686,597 Mixed 06 Jul 2023
O James Sterling Chief Financial Officer $451,309 Mixed 06 Jul 2023
Fergus Fleming Chief Technical Officer, Director $142,370 Mixed 06 Jul 2023
Timothy J. Scannell Director $17,241 Mixed 01 Jul 2023
Thomas H. Mclain President $14,788 Mixed 10 Jul 2023
Catherine Coste Director Mixed 20 Nov 2023
Daniel J. Levangie Director Mixed 20 Nov 2023
Chirag R. Parikh Director Mixed 20 Nov 2023
Michael J. Donovan Chief Medical Officer Mixed 06 Jul 2023
Howard Doran Jr. Chief Business Officer Mixed 20 Nov 2023
Erik Lium Director Mixed 01 Jul 2023
Joel R. Jung Interim Chief Financial Office Mixed 11 Jun 2024

Recent insider transactions for Renalytix plc

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
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