IRONWOOD PHARMACEUTICALS INC (IRWD) - Dilution Analysis

Visualizing historical and potential share dilution over time

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Dilution Analysis

Low Risk

Limited dilution potential

Last updated: May 07, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares

Recent Dilution: 2.85% (2 years)

Historical Dilution Factor: minimal recent dilution

Outstanding Shares

160M

Potential Supply

Additional shares possible

Splits

None

Past 2 years

Summary

IRWD currently has 163M outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 2.85% over the past 2 years.

Share Structure Timeline

Outstanding Shares

Total Supply

Historical Data Points

Date	Event	Outstanding
May 07, 2026	10-Q filing \| 163.5M shares outstanding	160M
Nov 10, 2025	10-Q filing \| 162.2M shares outstanding	160M
Aug 11, 2025	10-Q filing \| 161.7M shares outstanding	160M
May 12, 2025	10-Q filing \| 161.0M shares outstanding	160M
Mar 31, 2025	10-K filing \| 160.1M shares outstanding	160M
Nov 07, 2024	10-Q filing \| 160.2M shares outstanding	160M
Aug 08, 2024	10-Q filing \| 159.0M shares outstanding	160M
May 09, 2024	10-Q filing \| 157.7M shares outstanding	160M
Feb 16, 2024	10-K filing \| 155.4M shares outstanding	160M
Nov 09, 2023	10-Q filing \| 155.9M shares outstanding	160M
Aug 09, 2023	10-Q filing \| 155.4M shares outstanding	160M
May 04, 2023	10-Q filing \| 154.5M shares outstanding	150M
Feb 16, 2023	10-K filing \| 154.4M shares outstanding	150M
Nov 03, 2022	10-Q filing \| 153.1M shares outstanding	150M
Aug 04, 2022	10-Q filing \| 153.3M shares outstanding	150M
May 05, 2022	10-Q filing \| 157.8M shares outstanding	160M
Feb 18, 2022	10-K filing \| 162.2M shares outstanding	160M
Nov 04, 2021	10-Q filing \| 162.7M shares outstanding	160M
Aug 05, 2021	10-Q filing \| 163.5M shares outstanding	160M
May 06, 2021	10-Q filing \| 162.3M shares outstanding	160M
Feb 17, 2021	10-K filing \| 160.7M shares outstanding	160M
Nov 05, 2020	10-Q filing \| 160.1M shares outstanding	160M
Aug 06, 2020	10-Q filing \| 160.0M shares outstanding	160M
May 06, 2020	10-Q filing \| 159.4M shares outstanding	160M
Feb 13, 2020	10-K filing \| 157.5M shares outstanding	160M

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