Amentum Holdings, Inc. (AMTM) - Dilution Analysis

Visualizing historical and potential share dilution over time

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Dilution Analysis

Low Risk

Limited dilution potential

Last updated: May 12, 2026

Risk Assessment Details

Potential Dilution: 7.57% of current shares

Recent Dilution: 0.54% (2 years)

Historical Dilution Factor: minimal recent dilution

Outstanding Shares

240M

Potential Supply

18M

Additional shares possible

Splits

None

Past 2 years

Summary

AMTM currently has 244M outstanding shares. with limited dilution risk as only 18.5M additional shares (7.6%) are authorized for issuance. The company has minimally diluted shareholders by 0.54% over the past 2 years.

Share Structure Timeline

Outstanding Shares

Total Supply

Historical Data Points

Date	Event	Outstanding	Supply
May 12, 2026	10-Q filing \| 244.0M shares outstanding	240M	18M
Nov 25, 2025	10-K filing \| 244.0M shares outstanding	240M	18M
Aug 06, 2025	10-Q filing \| 243.0M shares outstanding	240M	19M
May 07, 2025	10-Q filing \| 243.0M shares outstanding	240M	19M
Mar 10, 2025	S-1 filing: An offering of 19,464,174 shares of common stock by a selling shareholder, BofA Securities, Inc., in exchange for certain indebtedness of JEG held by the Lender pursuant to an exchange agreement expected to be entered into following the date of this prospectus supplement.	240M	19M
Feb 05, 2025	10-Q filing \| 243.0M shares outstanding	240M	0
Dec 17, 2024	10-K filing \| 243.3M shares outstanding	240M	0

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