Radiopharm Theranostics Ltd - Ordinary Shares, no par value and American Depositary Shares, each representing three hundred Ordinary Shares, no par value (RADX)

CUSIP: 75041J101

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class
Equity / Ordinary Shares, no par value and American Depositary Shares, each representing three hundred Ordinary Shares, no par value
Total 13F shares
51,308,037
Total 13F value
$2,064,148
Holder snapshot 6 signals
Share change
-231,540
SEC-reported price per share
$4.30
Number of holders
7
Value change
-$1,032,966
Number of buys
1
Number of sells
7
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
3,543,587,624

Security key

75041J101

Report period

Q1 2026

Institutions

7

Top holders

7

RADX full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 Radiopharm Theranostics Ltd SEC filings Radiopharm Theranostics Ltd company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of RADX - Radiopharm Theranostics Ltd - Ordinary Shares, no par value and American Depositary Shares, each representing three hundred Ordinary Shares, no par value (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
REGAL PARTNERS HOLDINGS P...
Disclosed value leader
REGAL PARTNERS HOLDINGS P...
Comparable rows
13/15
Latest evidence
18 Mar 2026
13D/G 13F 3/4/5 Lead comparable stake: 9% 2 rows are not safely comparable across share classes. 13D/G row: REGAL PARTNERS HOLDINGS PTY LTD Showing 1-6 of 15 holder rows.

Quick read

REGAL PARTNERS HOLDINGS PTY LTD leads the comparable SEC ownership view at 9%.

13 of 15 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 REGAL PARTNERS HOLDINGS PTY LTD's linked filing trail.
Comparable ownership Top 5
REGAL PARTNERS HOLDINGS PTY LTD 9%
JPMORGAN CHASE & CO 4%
Stonepine Capital Management, LLC 1.4%
HSBC HOLDINGS PLC 0.01%
SILVERARC CAPITAL MANAGEMENT, LLC 0.01%

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

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
REGAL PARTNERS HOLDINGS PTY LTD
13D/G
Regal Partners Holdings Pty Limited
13D/G
9%
$1,362,952,390
320,694,680 shares
 +$629,253,691 31 Dec 2025
JPMORGAN CHASE & CO
13D/G
13D/G
4%
—
145,679,951 shares
 $0 31 Dec 2025
Stonepine Capital Management, LLC
13F
Company
13F
1.4%
$850,851
51,000,000 shares
 — 31 Dec 2025
HSBC HOLDINGS PLC
13F
Company
13F
0.01%
$1,006,984
191,624 shares
 — 31 Dec 2025
SILVERARC CAPITAL MANAGEMENT, LLC
13F
Company
13F
0.01%
$978,259
187,406 shares
 — 31 Dec 2025
Regal Partners Ltd
13F
Company
13F
0%
$474,545
90,909 shares
 — 31 Dec 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.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
7
Shares
51,308,037
Rows available
7
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
10
Q1 2026 holders
7
Holder diff
-3
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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