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$ Value

$8.8M

Shares

72,907

Price

$121

Filed

Jan 7

Insider

Name

WETHERBEE ROBERT S

Title

Executive Chairman

CIK

0001572385

Roles

Director Officer

Transaction Details

Transaction Date

2026-01-05

Code

F

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

405,644

Footnotes

Settlement of one-half of certain Performance Stock Units awarded in 2022 ("2022 Breakout Performance Units"), each of which represented a contingent right to receive shares of the Issuer's Common Stock if the Issuer's Common Stock achieved specified target market prices (based on a 20-trading day average) on the New York Stock Exchange ("NYSE") for at least 20 consecutive trading days (the "20-day Average Market Price") prior to December 31, 2025, up to a maximum of three shares per Unit. The shares underlying one-half of the 2022 Breakout Performance Units became payable as of January 5, 2026 following certification of the Issuer's achievement of the relevant performance criteria by the Compensation and Leadership Development Committee of the Company's Board of Directors (the "CLDC"). The remaining half of the 2022 Breakout Performance Units are scheduled by their terms to become payable in early 2027. | Represents the average of the high and low trading prices for one share of the Issuer's Common Stock on the NYSE on January 5, 2026. | Settlement of performance-vested restricted stock units that were granted in 2023, the vesting of which was contingent on the Issuer's total shareholder return relative to a specified peer group during the period from January 1, 2023 through December 31, 2025 (the "2023-2025 PSUs"). The shares underlying the 2023-2025 PSUs became payable as of January 5, 2026 following certification of the Issuer's achievement of the relevant performance criteria by the CLDC. | Awarded under the Issuer's 2022 Incentive Plan. | Shares withheld for the payment of taxes in connection with the settlement of the 2023-2025 PSUs. | Shares withheld for payment of taxes on restricted stock units awarded in 2023, 2024 and 2025. | Shares withheld for the payment of taxes in connection with the settlement of 2022 Breakout Performance Units.

Filing Info

Accession No.

0001193125-26-006570

Form Type

4

Issuer CIK

0001018963

WETHERBEE ROBERT S's History

Date Ticker Type Value
2026-04-15 CMC A $454
2026-02-17 ATI $1.8M
2026-02-17 ATI $1.2M
2026-02-17 ATI $4.2M
2026-02-10 ATI $1.5M
2026-02-02 CMC A $402
2026-01-14 CMC A $165K
2026-01-05 ATI M $0
2026-01-05 ATI F $8.4M
2026-01-05 ATI A $0

Other Insiders at ATI (90d)

Insider Bought Sold Last
BALL M LEROY 2026-02-17
WETHERBEE ROBERT S
Executive Chairman
$8.7M 2026-02-17
Morehouse David J $1.0M 2026-03-09
Bhatia Vaishali S.
SVP, General Counsel and CCO
2026-03-20
Miller Michael Benjamin
VP Chief Accounting Officer
2026-03-02