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Pasithea Therapeutics recorded its strongest trading session in four years after unveiling a massive equity offering amid growing clinical momentum for PAS-004, its experimental therapy now advancing toward ALS studies alongside ongoing work in solid tumors and neurofibromatosis.
The stock surged 117% on Wednesday to a nearly seven-month high, and added 11% after hours.
The company announced a share offering of up to 75 million shares of common stock at an assumed price of $0.80 per share, alongside up to 75 million pre-funded warrants priced at $0.799 per warrant. Each pre-funded warrant is exercisable for one share at $0.001 and becomes active immediately, with the overall offering running on a reasonable best-efforts basis through Dec. 31. The company noted that it will not seek an exchange listing for the pre-funded warrants.
The surge in stock price also followed the ALS Association's award of about $1 million through its Hoffman ALS Clinical Trial Award to support the first study of PAS-004 in people living with ALS. The grant will fund research into the drug’s safety, efficacy, and tolerability as it moves the lead therapy into a new neurological disease.
Pasithea Chairman Lawrence Steinman said the award enables the start of the inaugural ALS trial for PAS-004, noting that the treatment targets a key molecule involved in motor neuron disease and has shown promising results in the gold-standard SOD mouse model.
PAS-004 also continued to progress across additional programs. In Cohort 7 of the ongoing Phase 1 study in MAPK-driven advanced solid tumors, PAS-004 remained safe and well tolerated with no dose-limiting toxicities, supporting the Safety Review Committee’s recommendation to proceed to Cohort 8.
Interim data showed inhibition of the drug’s biological target, early signs of tumor response in BRAF-mutated melanoma patients, and continued disease stability in others. Pasithea separately released data from its tablet formulation, showing dose-proportional pharmacokinetics and higher exposure levels than the capsule version. The company also activated a new U.S. clinical site at the University of Alabama at Birmingham for its neurofibromatosis Type 1 program.
On Stocktwits, retail sentiment for Pasithea was ‘extremely bullish’ amid a 1,385% surge in 24-hour message volume.

One user said, “in at $1.20. Making Thanksgiving pies. Jumped to $1.50, rolled out more dough thinking it’d go higher, and missed it. Praying it runs again Friday!!”
Another user said, “what a Battle , what a vola... Longs won here already imho.”
Pasithea’s stock has declined 66% so far in 2025.
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