SEC ownership of Transcode Therapeutics, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001829635.

Comparable stake leader

CK Life Sciences Intl (Holdings) Inc

Disclosed value leader

CK Life Sciences Intl (Holdings) Inc

Comparable rows

17/24

Latest evidence

03 Aug 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
17 of 24
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
CK Life Sciences Intl (Holdings) Inc
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
03 Aug 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001829635
Issuer location
Boston, MA

Ownership snapshot

Top shareholders of Transcode Therapeutics, Inc. (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
CK Life Sciences Intl (Ho...
Disclosed value leader
CK Life Sciences Intl (Ho...
Comparable rows
17/24
Latest evidence
03 Aug 2026
13D/G 3/4/5 13F Lead comparable stake: 84% 7 rows are not safely comparable across share classes. 13D/G row: CK Life Sciences Intl (Holdings) Inc Showing 1-8 of 24 holder rows.

Quick read

CK Life Sciences Intl (Holdings) Inc leads the comparable SEC ownership view at 84%.

17 of 24 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 CK Life Sciences Intl (Holdings) Inc's linked filing trail.
Comparable ownership Top 5
CK Life Sciences Intl (Holdings) Inc 84%
Unleash Immuno Oncolytics, Inc. 9.9%
YA II PN, Ltd. 9.9%
Elena Rosa Braci 6.2%
Daniel Eduardo Katzman 5.2%

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

Detailed SEC evidence table Showing 1-8 of 24 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
CK Life Sciences Intl (Holdings) Inc
13D/G 3/4/5
CK Life Sciences Int'l., (Holdings) Inc. · 10%+ Owner
84%
$119,295,020
14,134,481 shares
$0 03 Aug 2026
Unleash Immuno Oncolytics, Inc.
13D/G
9.9%
$1,875,000
300,000 shares
$0 23 Jul 2026
YA II PN, Ltd.
13D/G
9.9%
$35,620
101,772 shares
$0 15 Apr 2026
Elena Rosa Braci
13D/G
6.2%
$1,163,975
186,236 shares
$0 23 Jul 2026
Daniel Eduardo Katzman
13D/G
5.2%
$972,569
155,611 shares
$0 23 Jul 2026
Thomas Joseph Tracy
13D/G
5%
$13,300
35,000 shares
$0 07 Mar 2025
SABBY MANAGEMENT, LLC
13D/G
4.9%
$433,482
41,601 shares
$0 31 Dec 2025
Anson Funds Management LP
13D/G
0.1%
$9,494
27,125 shares
-$30,224 30 Jun 2025
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 07 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 1-11 of 11 reporting-owner rows connected to Transcode Therapeutics, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
11
Largest Forms 3/4/5 holder
DEFJ, LLC
Net 12M change
$0
Latest report
03 Aug 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
DEFJ, LLC 10%+ Owner $88,340,506 Mixed 03 Aug 2026
CK Life Sciences Intl (Holdings) Inc 10%+ Owner $88,340,506 Mixed 03 Aug 2026
Anna Moore 10%+ Owner $791,920 Mixed 08 Jul 2021
Robert Michael Dudley Chief Executive Officer, Director $91,934 Filing P/S 28 Sep 2023
Thomas A. Fitzgerald Interim CEO, CFO, Director $28,722 Filing P/S 14 Jun 2024
Elizabeth Czerepak Director Mixed 06 Oct 2025
Philippe Calais Director Mixed 14 Jun 2024
Magda Marquet Director Mixed 14 Jun 2024
Zdravka Medarova Chief Technology Officer, 10%+ Owner Mixed 12 Dec 2022
Erik Manting Director Mixed 14 Jun 2024
Jack E. Stover Director Mixed 19 Dec 2025

Recent insider transactions for Transcode Therapeutics, Inc.

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
Defj, Llc RNAZ Common Stock Conversion of derivative security 4610.9% 13,834,441 14,134,481 03 Aug 2026 Direct
Defj, Llc RNAZ Common Stock Conversion of derivative security 4610.9% 13,834,441 14,134,481 03 Aug 2026 Direct
Defj, Llc RNAZ Series B Non-Voting Convertible Preferred Stock Conversion of derivative security -100% -202 0 03 Aug 2026 Direct
Defj, Llc RNAZ Series B Non-Voting Convertible Preferred Stock Conversion of derivative security -100% -202 0 03 Aug 2026 Direct
Defj, Llc RNAZ Series A Non-Voting Convertible Preferred Stock Conversion of derivative security -100% -1,181 0 03 Aug 2026 Direct
Defj, Llc RNAZ Series A Non-Voting Convertible Preferred Stock Conversion of derivative security -100% -1,181 0 03 Aug 2026 Direct
* marks a reported price that did not pass the local price check.
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