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Pasithea Therapeutics Corp. filings document the formal reporting record for a clinical-stage biotechnology company with common stock and warrants registered on The Nasdaq Capital Market. The disclosures cover PAS-004-related corporate context, security classes, emerging growth company status, and material events reported on Form 8-K.
Recent regulatory filings include Nasdaq listing-compliance notices, executive officer appointments tied to clinical development leadership, and proxy materials for annual meeting matters. The proxy record addresses director elections, auditor ratification, equity compensation plan amendments, and capital-structure proposals, while 8-K filings report governance changes and other current events affecting the issuer and its listed securities.
Pasithea Therapeutics Corp. reported a net loss of $2.9 million for the quarter ended March 31, 2026, narrower than the prior-year loss. The company is ramping investment in its PAS-004 clinical programs while benefiting from higher interest income and warrant valuation gains.
Research and development spending rose to $2.9 million as Phase 1 trials in advanced tumors and NF1-related plexiform neurofibromas progressed. Pasithea ended the quarter with $50.4 million in cash and equivalents and working capital of about $51.2 million, and management believes this is sufficient for at least 12 months.
Pasithea Therapeutics Corp. reported a net loss of $2.9 million for the quarter ended March 31, 2026, narrower than the prior-year loss. The company is ramping investment in its PAS-004 clinical programs while benefiting from higher interest income and warrant valuation gains.
Research and development spending rose to $2.9 million as Phase 1 trials in advanced tumors and NF1-related plexiform neurofibromas progressed. Pasithea ended the quarter with $50.4 million in cash and equivalents and working capital of about $51.2 million, and management believes this is sufficient for at least 12 months.
Pasithea Therapeutics Corp Schedule 13G/A discloses ownership by Ameriprise Financial, Inc. and Columbia Management Investment Advisers, LLC. The filing reports 1,350,896 shares held with 5.4% of the class (CUSIP 70261F202). Ameriprise states CMIA’s holdings are included in AFI’s total and both entities disclaim beneficial ownership. The filing is signed by Michael G. Clarke and attaches exhibits identifying the acquiring subsidiary and a joint filing agreement.
Pasithea Therapeutics Corp Schedule 13G/A discloses ownership by Ameriprise Financial, Inc. and Columbia Management Investment Advisers, LLC. The filing reports 1,350,896 shares held with 5.4% of the class (CUSIP 70261F202). Ameriprise states CMIA’s holdings are included in AFI’s total and both entities disclaim beneficial ownership. The filing is signed by Michael G. Clarke and attaches exhibits identifying the acquiring subsidiary and a joint filing agreement.
Pasithea Therapeutics Corp. reported that Chief Executive Officer Tiago Marques received a stock option grant covering 1,756,069 shares of common stock. The option has an exercise price of $0.841 per share and expires on April 30, 2036.
According to the grant terms, 33% of the underlying shares vest on the one-year anniversary of the grant date, with the remaining shares vesting in equal quarterly installments over the following two years, as long as he remains in continuous service. All unvested shares fully vest upon a Change in Control under the company’s 2023 Stock Incentive Plan. Vested options may generally be exercised for up to three years after termination of continuous service, other than for cause.
Pasithea Therapeutics Corp. reported that Chief Executive Officer Tiago Marques received a stock option grant covering 1,756,069 shares of common stock. The option has an exercise price of $0.841 per share and expires on April 30, 2036.
According to the grant terms, 33% of the underlying shares vest on the one-year anniversary of the grant date, with the remaining shares vesting in equal quarterly installments over the following two years, as long as he remains in continuous service. All unvested shares fully vest upon a Change in Control under the company’s 2023 Stock Incentive Plan. Vested options may generally be exercised for up to three years after termination of continuous service, other than for cause.
Pasithea Therapeutics Corp. director Lawrence Steinman received a grant of stock options as part of equity compensation. The award covers 152,783 stock options for common stock with an exercise price of $0.841 per share and an expiration date in 2036.
These options vest in full on the one-year anniversary of the grant date if he remains a director through that date, and will fully vest earlier upon a Change in Control as defined in the company’s 2023 Stock Incentive Plan.
Pasithea Therapeutics Corp. director Lawrence Steinman received a grant of stock options as part of equity compensation. The award covers 152,783 stock options for common stock with an exercise price of $0.841 per share and an expiration date in 2036.
These options vest in full on the one-year anniversary of the grant date if he remains a director through that date, and will fully vest earlier upon a Change in Control as defined in the company’s 2023 Stock Incentive Plan.
Pasithea Therapeutics Corp. director Simon Dumesnil received a grant of stock options covering 152,783 shares of common stock. The options have an exercise price of $0.841 per share and were awarded as compensation under the company’s 2023 Stock Incentive Plan.
The options vest in full on the one-year anniversary of the grant date if he remains a director, and will fully vest earlier upon a defined Change in Control. Following this grant, Dumesnil holds 152,783 derivative securities representing rights to acquire common shares, with the options scheduled to expire on April 30, 2036.
Pasithea Therapeutics Corp. director Simon Dumesnil received a grant of stock options covering 152,783 shares of common stock. The options have an exercise price of $0.841 per share and were awarded as compensation under the company’s 2023 Stock Incentive Plan.
The options vest in full on the one-year anniversary of the grant date if he remains a director, and will fully vest earlier upon a defined Change in Control. Following this grant, Dumesnil holds 152,783 derivative securities representing rights to acquire common shares, with the options scheduled to expire on April 30, 2036.
Pasithea Therapeutics Corp. reported that its Chief Financial Officer, Daniel H. Schneiderman, received a grant of stock options covering 1,129,323 shares of common stock. The options have an exercise price of $0.8410 per share and expire in 2036.
According to the company’s 2023 Stock Incentive Plan, 33% of the underlying shares vest on the one-year anniversary of the grant date, with the remaining shares vesting in equal quarterly installments over the following two years, assuming continuous service. The options fully vest upon a Change in Control as defined in the plan, and vested options may generally be exercised for up to three years after termination of continuous service other than for cause.
Pasithea Therapeutics Corp. reported that its Chief Financial Officer, Daniel H. Schneiderman, received a grant of stock options covering 1,129,323 shares of common stock. The options have an exercise price of $0.8410 per share and expire in 2036.
According to the company’s 2023 Stock Incentive Plan, 33% of the underlying shares vest on the one-year anniversary of the grant date, with the remaining shares vesting in equal quarterly installments over the following two years, assuming continuous service. The options fully vest upon a Change in Control as defined in the plan, and vested options may generally be exercised for up to three years after termination of continuous service other than for cause.
Pasithea Therapeutics Corp. granted Chief Medical Officer Kartik Krishnan a stock option to acquire 1,129,323 shares of common stock at an exercise price of $0.841 per share. This is a compensation-related award, not an open-market purchase or sale.
The option was granted under the company’s 2023 Stock Incentive Plan. 33% of the underlying shares vest on the one-year anniversary of the grant date, and the remaining shares vest in equal quarterly installments over the following two years, subject to continued service. All shares underlying the option fully vest upon a Change in Control as defined in the plan.
Vested and exercisable shares may be exercised for up to three years after termination of continuous service, except in the case of termination for Cause. Following this grant, Krishnan’s reported derivative holdings from this option total 1,129,323 option shares.
Pasithea Therapeutics Corp. granted Chief Medical Officer Kartik Krishnan a stock option to acquire 1,129,323 shares of common stock at an exercise price of $0.841 per share. This is a compensation-related award, not an open-market purchase or sale.
The option was granted under the company’s 2023 Stock Incentive Plan. 33% of the underlying shares vest on the one-year anniversary of the grant date, and the remaining shares vest in equal quarterly installments over the following two years, subject to continued service. All shares underlying the option fully vest upon a Change in Control as defined in the plan.
Vested and exercisable shares may be exercised for up to three years after termination of continuous service, except in the case of termination for Cause. Following this grant, Krishnan’s reported derivative holdings from this option total 1,129,323 option shares.
Pasithea Therapeutics Corp. director Emer Leahy received a stock option grant covering 152,783 shares of common stock. The option was awarded under the company’s 2023 Stock Incentive Plan with an exercise price of $0.841 per share and expires on April 30, 2036.
The underlying 152,783 shares will vest in full on the one-year anniversary of the grant date if Leahy remains a director through that date. The shares also fully vest upon a Change in Control as defined in the plan. After this grant, Leahy holds 152,783 options directly.
Pasithea Therapeutics Corp. director Emer Leahy received a stock option grant covering 152,783 shares of common stock. The option was awarded under the company’s 2023 Stock Incentive Plan with an exercise price of $0.841 per share and expires on April 30, 2036.
The underlying 152,783 shares will vest in full on the one-year anniversary of the grant date if Leahy remains a director through that date. The shares also fully vest upon a Change in Control as defined in the plan. After this grant, Leahy holds 152,783 options directly.
Pasithea Therapeutics Corp. director Alfred J. Novak received a grant of stock options covering 152,783 shares of common stock. The options have an exercise price of $0.8410 per share and were awarded under the company’s 2023 Stock Incentive Plan.
The options vest in full on the one-year anniversary of the grant date if Novak continues to serve as a director through that date. The award will also fully vest upon a Change in Control, as defined in the plan, providing additional equity-based compensation tied to his board service.
Pasithea Therapeutics Corp. director Alfred J. Novak received a grant of stock options covering 152,783 shares of common stock. The options have an exercise price of $0.8410 per share and were awarded under the company’s 2023 Stock Incentive Plan.
The options vest in full on the one-year anniversary of the grant date if Novak continues to serve as a director through that date. The award will also fully vest upon a Change in Control, as defined in the plan, providing additional equity-based compensation tied to his board service.
Pasithea Therapeutics Corp. filed an initial Form 3 for Kartik Krishnan, who serves as Chief Medical Officer. The filing establishes his status as an officer and a reportable insider of the company but does not list any share holdings or recent transactions.
Pasithea Therapeutics Corp. filed an initial Form 3 for Kartik Krishnan, who serves as Chief Medical Officer. The filing establishes his status as an officer and a reportable insider of the company but does not list any share holdings or recent transactions.