Mirum Pharmaceuticals, Inc. (MIRM) - Dilution Analysis

Visualizing historical and potential share dilution over time

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Dilution Analysis

Medium Risk

Moderate dilution risk

Last updated: May 06, 2026

Risk Assessment Details

Potential Dilution: 29.96% of current shares

Recent Dilution: 23.8% (2 years)

Historical Dilution Factor: moderate recent dilution

Outstanding Shares

59M

Potential Supply

18M

Additional shares possible

Splits

None

Past 2 years

Summary

MIRM currently has 58.9M outstanding shares. with moderate dilution risk from 17.6M authorized shares representing 30.0% potential dilution. The company has diluted shareholders by 23.8% over the past 2 years through share issuances.

Share Structure Timeline

Outstanding Shares

Total Supply

Historical Data Points

Date	Event	Outstanding	Supply
May 06, 2026	10-Q filing \| 58.9M shares outstanding	59M	18M
Nov 04, 2025	10-Q filing \| 50.6M shares outstanding	51M	18M
Aug 06, 2025	10-Q filing \| 49.7M shares outstanding	50M	18M
May 07, 2025	10-Q filing \| 48.9M shares outstanding	49M	18M
Feb 26, 2025	10-K filing \| 47.5M shares outstanding	48M	18M
Nov 12, 2024	10-Q filing \| 47.8M shares outstanding	48M	18M
Aug 07, 2024	10-Q filing \| 47.2M shares outstanding	47M	18M
May 08, 2024	10-Q filing \| 46.9M shares outstanding	47M	18M
Mar 15, 2024	10-K filing \| 47.0M shares outstanding	47M	18M
Nov 02, 2023	10-Q filing \| 46.6M shares outstanding	47M	18M
Aug 07, 2023	10-Q filing \| 38.1M shares outstanding	38M	18M
May 04, 2023	10-Q filing \| 37.7M shares outstanding	38M	18M
Mar 08, 2023	10-K filing \| 38.0M shares outstanding	38M	18M
Nov 09, 2022	10-Q filing \| 34.9M shares outstanding	35M	18M
Aug 04, 2022	10-Q filing \| 32.2M shares outstanding	32M	18M
May 25, 2022	S-3 filing: This S-3 filing pertains to the resale of up to 841,792 shares of common stock by selling stockholders.	32M	18M
May 05, 2022	10-Q filing \| 31.8M shares outstanding	32M	17M
Mar 09, 2022	10-K filing \| 31.7M shares outstanding	32M	17M
Nov 15, 2021	10-Q filing \| 30.6M shares outstanding	31M	17M
Aug 05, 2021	10-Q filing \| 30.5M shares outstanding	31M	17M
May 06, 2021	10-Q filing \| 30.5M shares outstanding	30M	17M
Mar 09, 2021	10-K filing \| 30.4M shares outstanding	30M	17M
Nov 12, 2020	10-Q filing \| 25.7M shares outstanding	26M	17M
Aug 10, 2020	S-3/A filing: The filing is for a shelf offering of common stock, preferred stock and debt securities, with a total proposed amount of $300,000,000.	25M	17M
Aug 06, 2020	10-Q filing \| 25.4M shares outstanding	25M	17M
Aug 03, 2020	S-3 filing: The company may offer up to $300,000,000 of any combination of common stock, preferred stock and debt securities from time to time.	25M	17M
May 07, 2020	10-Q filing \| 25.4M shares outstanding	25M	2.8M
Mar 12, 2020	10-K filing \| 25.4M shares outstanding	25M	2.8M
Jan 06, 2020	S-1 filing: This S-1 filing includes information on the offering of common stock.	25M	2.8M

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