How to Buy Mirum Pharmaceuticals, Inc. Common Stock (MIRM) Stock

Where to buy MIRM

13 brokers in our matrix offer MIRM. Verify availability and current fees with each broker before trading.

Broker	Commission	Fractional	Extended	Overnight	Options	OTC access
Charles Schwab (thinkorswim)Review	$0	Schwab Stock Slices, S&P 500 only, ≥ $5/slice, up to 30 at once		~1,130	$0.65	Most (3/5)
E*TRADE (Morgan Stanley)Review	$0 listed			~20	$0.65	Most (4/5)
FidelityReview	$0	Stocks by the Slice, 7,000+ stocks/ETFs, from $1			$0.65	Partial (2+0)
FirstradeReview	$0	~4,000+ tickers, ≥ $5		~1,200	$0	Most (4/5)
Interactive BrokersReview	$0 (Lite) / per-share (Pro)			~10,000	per-contract pricing	Full
Merrill EdgeReview	$0				$0.65	Most (3/5)
MoomooReview	$0				$0	Limited only
Public.comReview	$0				rebate model	Limited only
RobinhoodReview	$0	≥ $1 stocks, market cap ≥ $25M		~1,134	$0	None
SoFi Active InvestingReview	$0				$0	Partial (1+2)
tastytradeReview	$0 stocks				$1.00 open, $0 close (capped at $10 per leg)	Limited only
TradeStationReview	$0 listed				$0.50 / $0.60	Most (4/5)
WebullReview	$0				$0	Limited only

24-Hour / Overnight trading

MIRM 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.

About Mirum Pharmaceuticals, Inc. Common Stock

Mirum Pharmaceuticals Inc. is a biopharmaceutical company focused on developing and commercializing therapies for rare and orphan diseases. Its main product, Livmarli (maralixibat), is an orally administered IBAT inhibitor approved to treat cholestatic pruritus in patients with Alagille syndrome. The company is also developing treatments such as maralixibat for PFIC and ALGS, and volixibat for adult cholestatic liver diseases. Mirum currently has three approved medicines: Livmarli, Cholbam, and Ctexli.

Sector

PHARMACEUTICAL PREPARATIONS

Employees

418

Headquarters

FOSTER CITY, CA

Listed

2019-07-18

Market cap

$5.91B

Frequently asked

Where can I buy Mirum Pharmaceuticals, Inc. Common Stock (MIRM)?

MIRM is offered by 13 brokers in our matrix, including Charles Schwab (thinkorswim), E*TRADE (Morgan Stanley), Fidelity, Firstrade, Interactive Brokers. Compare commissions, fractional eligibility, and overnight availability in the broker matrix above.

Can I buy MIRM after hours or overnight?

Yes. MIRM 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 MIRM?

Yes. Robinhood offers MIRM as a regular exchange-listed security.

Does Fidelity offer MIRM?

Yes. Fidelity offers MIRM as a regular exchange-listed security.

Does Webull offer MIRM?

Yes. Webull offers MIRM as a regular exchange-listed security.

Is MIRM optionable?

Yes. MIRM has listed options contracts. Per-contract pricing varies by broker — see the Options column in the matrix.

Is there a tokenized version of MIRM?

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 MIRM?

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