Transaction Details

Footnotes

The price reported in column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $156.14 to $158.00. The reporting person undertakes to provide Howmet Aerospace Inc. ("Howmet"), any security holder of Howmet, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote. | Shares held in a trust, of which the reporting person is the trustee, grantor and beneficiary. | Shares held in a remainder trust, of which the reporting person is the trustee and grantor, and his children are the beneficiaries.