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6-K ·Filed Sep 14, 2026

RADX

Radiopharm Theranostics Ltd
BULLISH
Impact 7/10
Horizonweeks Processed1mo ago SEC0001213900-26-099435
Notable filing: 6-K
Actionable Insight ▲ Bullish

The October 1 FDA meeting is the next major catalyst — a positive outcome aligning on Phase 3 design would significantly de-risk the program. The SNO26 late-breaking oral presentation in November provides additional near-term visibility. Traders should watch for any pre-announcement of FDA feedback before October 1.

DirectionBullish
Confidencehigh
Horizonweeks
Latest settled — T+20d
RADX ▼ -44.78% at T+20d
LONG call ✗ call lost -44.78% · α vs SPY -47.04% · entry $2.01 → $1.11
Next anchor: T+60d in 6w
Latest observation: T+29 -27.99% FF3 residual α
Entry = T+0 close
Sep 14, 2026
via day close
T+1d
-24.38%
call -24.38% · α -23.92%
$1.52
settled 6w ago
T+5d
-19.90%
call -19.90% · α -20.01%
$1.61
settled 5w ago
T+20d
-44.78%
call -44.78% · α -47.04%
$1.11
settled 14d ago
T+60d
Pending
in 6w

Price Chart

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Executive Summary

Radiopharm Theranostics announced positive interim Phase 2b data for RAD101, a PET imaging agent for recurrent brain metastases, showing 93% concordance with MRI (primary endpoint met) and 86% preliminary sensitivity. The data was selected for a late-breaking oral presentation at SNO26 (Nov 2026), and the company plans an FDA meeting on October 1, 2026 to align on a Phase 3 pivotal trial protocol. This is a significant clinical milestone for a pre-revenue biotech with a $28M market cap, addressing a ~$600M market with no approved PET products.

Key Facts

  • RAD101 Phase 2b interim analysis met primary endpoint with 93% concordance between PET and MRI across all evaluable lesions
  • Preliminary 86% sensitivity in 14 patients with six-month follow-up and/or biopsy data (secondary objective)
  • Data selected for late-breaking oral presentation at SNO26 (Nov 12-15, 2026)
  • FDA meeting planned for October 1, 2026 to align on Phase 3 pivotal trial protocol
  • RAD101 has FDA Fast Track Designation for distinguishing recurrent brain metastases from treatment effect
  • Brain metastases imaging has ~$600 million total addressable market with no currently approved PET products
  • Partnership with Siemens Healthineers for manufacturing and distribution of 18F-labeled RAD101 for Phase 3 trial

Financial Impact

~$600M total addressable market for brain metastases imaging; no currently approved PET products; pre-revenue company with $28M market cap

pipeline valueregulatory milestone probability

Risk Factors

  • Phase 3 trial may fail to replicate Phase 2b results
  • FDA may require additional studies or data before approving pivotal trial design
  • Company is pre-revenue with limited cash runway (clinical-stage biotech)
  • Competing imaging modalities or emerging technologies could reduce market opportunity

Market Snapshot

Exchange
OTC
Sector
Pharmaceutical Preparations
Analyst Consensus
83% bullish (6 analysts)

Investment Themes

Biotech & Drug Discovery

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
6-K Filing (Primary)0001213900-26-099435
Document: ea0305391-6k_radiopharm.htm0001213900-26-099435
Document: 0001213900-26-099435-index-headers.html0001213900-26-099435
Document: 0001213900-26-099435-index.html0001213900-26-099435
Document: 0001213900-26-099435.txt0001213900-26-099435
32 reports for RADX
Performance horizon
73% Hit rate @ T+5 11 of 15 directional calls Went positive at some point 11 of 15 best @ T+60▲ +73.69%Jul 27, 2026
Filters
Rows
Reports for RADX — sortable, filterable
TypeNow
Oct 26, 2026
today
6-K
NEUTRAL ★ 4/10
—awaiting T+5——
Oct 20, 2026
6d ago
6-K
NEUTRAL ★ 3/10
$0.9900awaiting T+5—$0.9600 (−3.03%)
Oct 14, 2026
11d ago
SC 13G
NEUTRAL ★ 3/10
$1.08 $0.9500▼ −12.04%▼ −11.02%$0.9600 (−11.11%)
Oct 5, 2026
21d ago
6-K
BULLISH ★ 6/10
$1.27 $1.11▼ −12.60%▼ −13.02%$0.9600 (−24.41%)
Oct 1, 2026
25d ago
6-K
NEUTRAL ★ 2/10
$1.48 $1.11▼ −25.00%▼ −26.30%$0.9600 (−35.14%)
Sep 30, 2026
26d ago
6-K
NEUTRAL ★ 2/10
$1.62 $1.15▼ −29.01%▼ −30.93%$0.9600 (−40.74%)
Sep 24, 2026
4w ago
EFFECT
BEARISH ★ 5/10
$1.57 $1.48▲ +5.85%▲ +5.43%$0.9600 (+38.93%)
Sep 22, 2026
4w ago
6-K
NEUTRAL ★ 3/10
$1.65 $1.52▼ −7.88%▼ −6.69%$0.9600 (−41.82%)
Sep 14, 2026
6w ago
6-K
BULLISH ★ 7/10
$2.01 $1.61▼ −19.90%▼ −20.01%$0.9600 (−52.24%)
Sep 11, 2026
6w ago
6-K
NEUTRAL ★ 4/10
$1.98 $1.65▼ −16.67%▼ −16.45%$0.9600 (−51.52%)
Showing 10 of 32

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Report published Sep 14, 2026