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

YA II PN, Ltd.

Disclosed value leader

Anna Moore

Comparable rows

13/20

Latest evidence

17 Jul 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
13 of 20
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
YA II PN, Ltd.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
17 Jul 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
YA II PN, Ltd.
Disclosed value leader
Anna Moore
Comparable rows
13/20
Latest evidence
17 Jul 2026
13D/G 13F 3/4/5 Lead comparable stake: 9.9% 7 rows are not safely comparable across share classes. 13D/G row: YA II PN, Ltd. Showing 1-8 of 20 holder rows.

Quick read

YA II PN, Ltd. leads the comparable SEC ownership view at 9.9%.

13 of 20 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 YA II PN, Ltd.'s linked filing trail.
Comparable ownership Top 5
YA II PN, Ltd. 9.9%
CK Life Sciences Intl (Holdings) Inc 8.8%
Thomas Joseph Tracy 5%
SABBY MANAGEMENT, LLC 4.9%
Anson Funds Management LP 0.1%

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

Detailed SEC evidence table Showing 1-8 of 20 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
YA II PN, Ltd.
13D/G
9.9%
$35,620
101,772 shares
$0 15 Apr 2026
CK Life Sciences Intl (Holdings) Inc
13D/G
CK Life Sciences Int'l., (Holdings) Inc.
8.8%
$413,926
83,285 shares
$0 17 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
GOLDMAN SACHS GROUP INC
13D/G
THE GOLDMAN SACHS GROUP, INC.
0.01%
$882
82 shares
-$526,307 30 Sep 2025
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
1.3%
$109,690
12,740 shares
31 Mar 2026
UBS Group AG
13F
Company
13F
0.88%
$71,420
8,295 shares
31 Mar 2026
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 17 Jul 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 1-9 of 9 reporting-owner rows connected to Transcode Therapeutics, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
9
Largest Forms 3/4/5 holder
Anna Moore
Net 12M change
$0
Latest report
19 Dec 2025
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
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
Philippe Calais Director Mixed 14 Jun 2024
Jack E. Stover Director Mixed 19 Dec 2025
Erik Manting Director Mixed 14 Jun 2024
Elizabeth Czerepak Director Mixed 06 Oct 2025
Magda Marquet Director Mixed 14 Jun 2024
Zdravka Medarova Chief Technology Officer, 10%+ Owner Mixed 12 Dec 2022

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
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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