AMTM - CIK 0002011286
As of 2026-06-11, Amentum Holdings, Inc. (AMTM) has a market capitalization of $5.37 B, making it the #1331 most valuable US-listed company.
| Date | Market cap |
|---|---|
| 2026-06-11 | $5.37 B |
| 2026-06-10 | $5.37 B |
| 2026-05-29 | $5.76 B |
| 2026-05-28 | $5.65 B |
| 2026-05-26 | $5.60 B |
| 2026-05-25 | $5.68 B |
| 2026-05-24 | $5.68 B |
| 2026-05-22 | $5.68 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
As of 2026-06-11, Amentum Holdings, Inc. (AMTM) has a market capitalization of $5.37 B, making it the #1331 most valuable US-listed company.
Amentum Holdings, Inc. is the #1331 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.