INSMED Inc (INSM) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: October 30, 2025

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 39.6% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
210M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

INSM currently has 212M outstanding shares. with minimal authorized share overhang for future dilution. The company has significantly diluted shareholders by 39.6% over the past 2 years, indicating aggressive capital raising.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Oct 30, 2025

10-Q filing | 211.8M shares outstanding

210M 0
Aug 07, 2025

10-Q filing | 211.4M shares outstanding

210M 0
Jun 13, 2025

8-K filing: Insmed Incorporated has agreed to sell 7,812,500 shares of common stock to Underwriters at a price of $91.68 per share, resulting in net proceeds of approximately $716.3 million before other offering expenses, and granted the Underwriters a 30-day option to purchase up to an additional 1,171,875 shares of Common Stock. The transaction is expected to close on June 13, 2025. ($716.3M proceeds)

180M 0
May 08, 2025

10-Q filing | 180.9M shares outstanding

180M 0
Feb 20, 2025

10-K filing | 164.0M shares outstanding

160M 0
Oct 31, 2024

10-Q filing | 173.7M shares outstanding

170M 0
Aug 08, 2024

10-Q filing | 154.7M shares outstanding

150M 0
May 30, 2024

8-K filing: Insmed Incorporated completed an offering of 14,514,562 shares of common stock at a price of $49.1825 per share, resulting in net proceeds of approximately $713.9 million. ($713.9M proceeds)

150M 0
May 09, 2024

10-Q filing | 148.5M shares outstanding

150M 0
Feb 22, 2024

10-K filing | 140.4M shares outstanding

140M 0
Oct 26, 2023

10-Q filing | 142.9M shares outstanding

140M 0
Aug 03, 2023

10-Q filing | 137.6M shares outstanding

140M 0
May 04, 2023

10-Q filing | 136.4M shares outstanding

140M 0
Feb 23, 2023

10-K filing | 123.0M shares outstanding

120M 0
Oct 27, 2022

10-Q filing | 135.5M shares outstanding

140M 0
Oct 20, 2022

8-K filing: Insmed Incorporated has agreed to sell 13,750,000 shares of common stock to Underwriters at an offering price of $20.00 per share, with gross proceeds of $275 million, pursuant to an Underwriting Agreement dated October 19, 2022. ($275.0M proceeds)

120M 0
Aug 04, 2022

10-Q filing | 119.6M shares outstanding

120M 0
May 05, 2022

10-Q filing | 118.9M shares outstanding

120M 0
Feb 17, 2022

10-K filing | 112.1M shares outstanding

110M 0
Oct 28, 2021

10-Q filing | 117.1M shares outstanding

120M 0
Aug 05, 2021

10-Q filing | 109.6M shares outstanding

110M 0
May 13, 2021

8-K filing: Insmed Incorporated closed its underwritten public offering of $575 million aggregate principal amount of 0.75% Convertible Senior Notes due 2028 and a concurrent public offering of 11,500,000 shares of Common Stock.

100M 0
May 13, 2021

8-K filing: Insmed Incorporated completed a public offering of 11,500,000 shares of common stock at a price of $23.50 per share, resulting in gross proceeds of $287.5 million before deducting underwriting discounts and commissions. ($287.5M proceeds)

100M 0
May 06, 2021

10-Q filing | 103.0M shares outstanding

100M 0
Feb 25, 2021

10-K filing | 97.6M shares outstanding

98M 0
Oct 29, 2020

10-Q filing | 101.6M shares outstanding

100M 0
Aug 06, 2020

10-Q filing | 96.6M shares outstanding

97M 0
May 07, 2020

8-K filing: Insmed Incorporated completed an offering of 11,155,000 shares of common stock at a price of $22.0875 per share, resulting in net proceeds of approximately $246.4 million. ($246.4M proceeds)

90M 0
Apr 30, 2020

10-Q filing | 89.8M shares outstanding

90M 0
Feb 25, 2020

10-K filing | 84.6M shares outstanding

85M 0
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