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Akari Therapeutics Stock Falls After 255 Percent Weekly Gain

Akari Therapeutics PLC shares declined on Tuesday following a 255 percent surge late last week. The movement came after the company reported preclinical results for its AKTX-101 asset in KRAS-mutated pancreatic cancer models.

Benzinga
1 source·May 26, 11:41 AM(3 days ago)·1m read
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Akari Therapeutics Stock Falls After 255 Percent Weekly Gainmanilatimes.net
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Akari Therapeutics PLC (NASDAQ: AKTX) stock declined Tuesday after rising 255 percent in the prior session. The pullback followed the release of preclinical laboratory data on the company's asset AKTX-101.

The data showed that AKTX-101 produced synergistic cell-killing activity when combined with the KRAS inhibitor adagrasib. The effect appeared in cell lines carrying KRAS G12D and KRAS G12C mutations. The same synergy was not observed when adagrasib was tested with first-in-class TROP2 antibody-drug conjugates that use traditional topoisomerase I inhibitor payloads.

Those combinations instead showed antagonistic effects. The company presented the contrast between the two payload types in its report on the findings.

Key Facts

255% surge
one-day gain recorded late last week
AKTX-101 + adagrasib
showed synergy in KRAS G12D and G12C cell lines
Traditional TROP2 ADCs
produced antagonistic effects with adagrasib

Story Timeline

2 events
  1. Friday

    Akari stock rose after release of preclinical data on AKTX-101.

    1 sourceBenzinga
  2. Tuesday

    Akari shares declined following the prior 255 percent gain.

    1 sourceBenzinga

Potential Impact

  1. 01

    Share price volatility may continue as investors assess the preclinical findings.

  2. 02

    Further laboratory or animal studies could be required before clinical testing.

Transparency Panel

Sources cross-referenced1
Confidence score65%
Synthesized bySubstrate AI
Word count106 words
PublishedMay 26, 2026, 11:41 AM
Bias signals removed1 across 1 outlet
Signal Breakdown
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