How to Buy Pasithea Therapeutics Corp. Common Stock (KTTA) Stock

Where to buy KTTA

15 brokers in our matrix offer KTTA (penny/OTC-friendly subset). Verify availability and current fees with each broker before trading.

Broker	Commission	Fractional	Extended	Overnight	Options	OTCQX	OTCQB	Pink Cur.	Pink Ltd.	Grey	Surcharge	Short locate
FirstradeReview	$0	~4,000+ tickers, ≥ $5		~1,200	$0	Full	Full	Full	Full	Limited	—	limited
Interactive BrokersReview	$0 (Lite) / per-share (Pro)			~10,000	per-contract pricing	Full	Full	Full	Full	Full	Per-share pricing applies	best
TradeStationReview	$0 listed				$0.50 / $0.60	Full	Full	Full	Full	Limited	$0.005/share OTC (TS Select/TS Go), $0 up to 10,000 shares	strong
Charles Schwab (thinkorswim)Review	$0	Schwab Stock Slices, S&P 500 only, ≥ $5/slice, up to 30 at once		~1,130	$0.65	Full	Full	Full	Limited	Limited	Variable service fees on certain restricted	moderate
E*TRADE (Morgan Stanley)Review	$0 listed			~20	$0.65	Full	Full	Full	Full	Limited	$6.95 flat on penny stocks	moderate
FidelityReview	$0	Stocks by the Slice, 7,000+ stocks/ETFs, from $1			$0.65	Full	Full	No	No	No	—	limited
Merrill EdgeReview	$0				$0.65	Full	Full	Full	Limited	No	—	none
MoomooReview	$0				$0	Limited	Limited	Limited	No	No	—	limited
Public.comReview	$0				rebate model	Limited	Limited	Limited	No	No	—	none
SoFi Active InvestingReview	$0				$0	Full	Limited	Limited	No	No	—	none
tastytradeReview	$0 stocks				$1.00 open, $0 close (capped at $10 per leg)	Limited	Limited	Limited	No	No	—	limited
WebullReview	$0				$0	Limited	Limited	Limited	No	No	—	limited
CenterPoint SecuritiesReview	Per-share (day-trader oriented)				per-contract	Full	Full	Full	Full	Full	Per-share	best
Cobra TradingReview	Per-share (day-trader oriented)				per-contract	Full	Full	Full	Full	Full	Per-share	best
SpeedTraderReview	Per-share (day-trader oriented)				per-contract	Full	Full	Full	Full	Full	Per-share	best

24-Hour / Overnight trading

KTTA may be eligible for overnight trading via Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), Webull, Moomoo, Firstrade. Each broker maintains its own eligibility list — confirm before placing an order.

Penny stock / OTC routing

KTTA trades on the OTC markets. Broker support varies sharply by tier (OTCQX, OTCQB, Pink Current, Pink Limited, Grey). Fidelity and Robinhood exclude pink/grey entirely. For short-locate on small-caps, Interactive Brokers and the day-trader specialists (Cobra Trading, SpeedTrader, CenterPoint) have the deepest inventory.

About Pasithea Therapeutics Corp. Common Stock

Pasithea Therapeutics Corp is a biotechnology company. It is focused on the discovery, research, and development of treatments for central nervous system (CNS) disorders and other diseases, including RASopathies and certain cancers. It leveraging in the fields of neuroscience, translational medicine, and drug development. The disorders covered includes Neurofibromatosis Type 1, Amyotrophic Lateral Sclerosis (ALS), Multiple Sclerosis (MS), and Schizophrenia. Companies pipelines includes PAS-004 (Macrocyclic Small Module[MEK1/2]), PAS-003 (Monoclonal antibody),PAS-001 (Small Module). The Company has reportable segment, which is the business of research and development of treatments for central nervous system (CNS) disorders and other diseases, including RASopathies and certain cancers.

Sector

PHARMACEUTICAL PREPARATIONS

Employees

5

Headquarters

MIAMI BEACH, FL

Listed

2021-09-15

Market cap

$18.01M

Frequently asked

Where can I buy Pasithea Therapeutics Corp. Common Stock (KTTA)?

KTTA is offered by 15 brokers in our matrix, including Firstrade, Interactive Brokers, TradeStation, Charles Schwab (thinkorswim), E*TRADE (Morgan Stanley). Compare commissions, fractional eligibility, and overnight availability in the broker matrix above.

Can I buy KTTA after hours or overnight?

Yes. KTTA is on the 24-hour eligibility list for Charles Schwab (thinkorswim), Interactive Brokers, Robinhood, E*TRADE (Morgan Stanley), and others. Overnight sessions route through ATSs with wider spreads and limit-orders only.

Does Robinhood offer KTTA?

No. Robinhood does not provide access to the OTC tier KTTA trades on. Interactive Brokers, TradeStation, and Firstrade have the broadest OTC coverage.

Does Fidelity offer KTTA?

Partial. Fidelity's OTC access is tier-limited — see the OTC columns in the matrix to check whether KTTA's specific tier is supported.

Does Webull offer KTTA?

Partial. Webull's OTC access is tier-limited — see the OTC columns in the matrix to check whether KTTA's specific tier is supported.

Is KTTA optionable?

No. KTTA does not have listed options contracts at the moment.

Is there a tokenized version of KTTA?

Not in our current dataset. The tokenized stock universe (Kraken xStocks, Binance Alpha/Ondo, Robinhood EU, Hyperliquid HIP-3) is expanding quickly — we refresh quarterly.

Can I buy a fractional share of KTTA?

Yes. Multiple brokers in the matrix support fractional shares for KTTA — see the Fractional column above for per-broker eligibility and minimums.