$SLXN

Silexion Therapeutics (SLXN) Stock Soars 61% After Hours: Here's What's Going On - Silexion Therapeutics

Silexion Therapeutics (SLXN) shares surged 61% after reporting positive preclinical results for SIL204, its lead cancer therapy. The study showed dose-dependent gene silencing in KRAS-driven cancer cells. The company is advancing clinical trials. SLXN has a $1.43M market cap, down 99.27% over the past year. Shares fell 4.57% to $0.25 during regular trading.

Original reporting
Published Sep 29, 2026, 6:29 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 29, 2026, 6:48 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefTechnology
Primary signal
$SLXN
Bullish
high confidence
Mentioned
$SLXN
Relevance
8/10
AlphAI data visualization · based on benzinga.com
Decision brief

The 30-second read

$SLXNBullishMed
01

Why it matters

The disclosed preclinical mechanism provides a tangible proof‑of‑concept, potentially de‑risking the program and attracting partner interest.

02

Market read

First‑time disclosure of SIL204 preclinical data triggered a sharp price surge, indicating immediate market relevance for SLXN.

03

What to watch

Funding runway and upcoming Phase 2/3 enrollment timelines could constrain upside.

Relevance 8/10Novelty 8/10Timing: after‑hours today

Background

Silexion Therapeutics (NASDAQ:SLXN) is a clinical‑stage biotech focused on RNA‑i therapies for KRAS‑driven cancers. The company has a market cap of ~ $1.4 M and shares have fallen 99% over the past year.

Company-level read

Ticker impact

$SLXNBullishHigh confidence
Context

Silexion Therapeutics disclosed positive preclinical data for its lead KRAS‑targeting candidate SIL204, driving a 61% after‑hours price jump.

Expected impact

likely continued upward pressure as the market prices in the translational milestone.

Evidence & confidence

The data are the first public disclosure of SIL204’s mechanism, a material catalyst for a micro‑cap biotech.

Market effects

May boost sentiment toward RNA‑interference and KRAS‑targeted biotech peers.

Limited to U.S. biotech micro‑caps; no broader regional effect.

Low global impact beyond niche oncology investors.

Counterpoint

The preclinical data may not translate to clinical success; the rally could be premature.

Key entities

  • Dr. Mitchell Shirvan

    Chief Scientific and Development Officer, highlighted the mechanistic milestone.

  • Ilan Hadar

    Chairman and CEO, emphasized the data’s relevance to the subcutaneous delivery strategy.

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$SLXNMedAI 8/10

Silexion Therapeutics Announces First Patient Successfully Dosed in Phase 2/3 Clinical Trial of SIL204 in Locally Advanced Pancreatic Cancer

Silexion Therapeutics Corp (SLXN) filed an SEC Form 8-K — Regulation FD Disclosure. Exhibit 99.1 Silexion Therapeutics Announces First Patient Successfully Dosed in Phase 2/3 Clinical Trial of SIL204 in Locally Advanced Pancreatic Cancer Global Phase 2/3 trial evaluates SIL204 in combination with standard chemotherapy in patients with locally advanced pancreatic

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Silexion Therapeutics (SLXN) dosed the first patient in its Phase 2/3 trial of SIL204 for locally advanced pancreatic cancer. The trial combines SIL204 with standard chemotherapy. The study is being conducted at Tel Aviv Sourasky Medical Center and will expand to other sites in Israel and Germany. SIL204 is administered via a dual-route delivery strategy. The company aims to evaluate the potential of SIL204 to improve patient outcomes.

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Silexion Advances SIL204 With Positive Findings On Systemic Uptake In KRAS-Driven Cancers

Silexion Therapeutics (SLXN) reported positive findings from a study on SIL204, its RNAi candidate for KRAS-driven cancers. The study showed SIL204 utilizes lipoproteins for cellular delivery and potent gene silencing. The company is advancing SIL204 in a Phase 2/3 trial for pancreatic cancer and continues site initiation and patient screening. SLXN's stock is up 1.84% to $0.26.

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Silexion Therapeutics Reports Positive Preclinical Findings for SIL204, Demonstrating Key Mechanism for Endogenous Systemic Uptake in KRAS-Driven Cancers

Silexion Therapeutics Corp (SLXN) filed an SEC Form 8-K — Regulation FD Disclosure. Exhibit 99.1 Silexion Therapeutics Reports Positive Preclinical Findings for SIL204, Demonstrating Key Mechanism for Endogenous Systemic Uptake in KRAS-Driven Cancers Translational research demonstrates that SIL204 utilizes native serum lipids to facilitate intracellular delivery