Liquidia shares plunge after court upholds patent infringement ruling, prompting analyst downgrades

A Delaware District Court upheld United Therapeutics’ ’327 patent claims 1 and 14, finding Liquidia infringed the patent and casting doubt on its investigational drug L606. Wells Fargo responded by cutting its price target from $108.00 to $30.00 and downgrading the stock to Equal Weight. The shares fell about 59% over the week to roughly $27.99. Liquidia reported Q2 2026 earnings of $0.74 per share, missing the $0.76 estimate, while revenue of $171.68 million slightly beat the $170.98 million forecast.

Wells Fargo says the ruling creates high uncertainty for L606’s market expansion, which could limit future cash flow and justifies the lower price target. Insider net selling of $222.5 million adds further pressure on the stock’s valuation.

  • 1Wells Fargo cut Liquidia’s price target to $30.00 from $108.00.
  • 2Liquidia’s shares fell 59% over the past week to $27.99.
  • 3A Delaware District Court upheld claims 1 and 14 of United Therapeutics’ ’327 patent against Liquidia.
  • 4Liquidia posted Q2 earnings of $0.74 per share, missing the $0.76 forecast.
  • 5Revenue reached $171.68 million, slightly above the $170.98 million estimate.
  • 6Insiders have sold $222.5 million of Liquidia shares over the past 12 months.

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