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Harris Timothy J

Disclosed activity across 1 company

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945
SEC CIK
0001776844

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ATI INCATI · Entity 944Senior VP and CDIOSeptember 21, 2026September 23, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ATI INC

Report date September 21, 2026 · Filed September 23, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.10 per shareSEC Table I · non-derivativeDirect88,187 Reported balance After 2026-09-21 transaction · row 1
1 source row

Row 1 · 2026-09-21 · Sale · Disposed 9,000 · Balance 88,187

F1: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Filing footnotes · ownership attribution and instrument terms

F1: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 21, 2026 Filed Sep 23, 2026 14:32 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 9,000 $191.82 $1,726,380.00
Disclosure

SEC source: 0001193125-26-398695 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 88,187

F1 · kind: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Read SEC document
September 14, 2026 Filed Sep 17, 2026 00:20 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 16,500 $193.06 $3,185,490.00
Disclosure

SEC source: 0001193125-26-393438 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,187

F1 · kind: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:12 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 16,500 $207.54 $3,424,410.00
Disclosure

SEC source: 0001193125-26-387885 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 113,687

F1 · kind: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Read SEC document
August 31, 2026 Filed Sep 2, 2026 21:41 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 16,500 $210.01 $3,465,165.00
Disclosure

SEC source: 0001193125-26-380514 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 130,187

F1 · kind: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Read SEC document
August 24, 2026 Filed Aug 26, 2026 19:57 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 16,500 $206.92 $3,414,180.00
Disclosure

SEC source: 0001193125-26-368175 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 146,687

F1 · kind: Shares sold pursuant to a 10b5-1 Trading Plan dated May 21, 2026, entered into for personal tax and estate planning purposes.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 Exercise / conversionPerformance Stock Unit · Derivative 25,641 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · derivative · entry 7

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,641

Underlying: Common Stock, par value $0.10 per share · 70,442 shares

Expires 2026-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F3 · price: 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.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 3,359 $121.08 $406,707.72
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · nonDerivative · entry 6

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,187

F8 · shares: Shares withheld for payment of taxes on restricted stock units awarded in 2023, 2024 and 2025. One third of each such award vested by the terms thereof on January 5, 2026.

F5 · price: 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.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 20,283 $121.08 $2,455,865.64
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · nonDerivative · entry 5

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,546

F7 · shares: Shares withheld for the payment of taxes in connection with the settlement of the 2023-2025 PSUs.

F5 · price: 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.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 46,318 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · nonDerivative · entry 4

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,829

F6 · shares: 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.

F2 · price: Awarded under the Issuer's 2022 Incentive Plan.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 30,918 $121.08 $3,743,551.44
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · nonDerivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,511

F4 · shares: Shares withheld for the payment of taxes in connection with the settlement of 2022 Breakout Performance Units.

F5 · price: 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.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 Exercise / conversionCommon Stock, par value $0.10 per share 70,442 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,429

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: 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.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 22:19 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 2,677 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-006554 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,987

F1 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

F2 · price: Awarded under the Issuer's 2022 Incentive Plan.

Read SEC document
December 05, 2025 Filed Dec 9, 2025 23:16 UTC ATI INC ATI · Entity 944 GrantPerformance Stock Unit · Derivative 6,837 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-313069 · ownership.xml · derivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,837

Underlying: Common Stock, par value $0.10 per share · 6,837 shares

Expires 2029-12-31

F1 · derivative.exercise_price: Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 10-trading day average) on the NYSE for at least 20 consecutive trading days (the "Average Market Price") prior to December 31, 2029. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock acheives Average Market Prices at specified levels in excess of the target market price prior to December 31, 2029. Vested shares, if any, generally are apyable in two equal installments in early 2030 and 2031.

F2 · price: Awarded under the Issuer's 2022 Incentive Plan.

F1 · derivative.exercise_date: Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 10-trading day average) on the NYSE for at least 20 consecutive trading days (the "Average Market Price") prior to December 31, 2029. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock acheives Average Market Prices at specified levels in excess of the target market price prior to December 31, 2029. Vested shares, if any, generally are apyable in two equal installments in early 2030 and 2031.

F1 · derivative.expiration_date: Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 10-trading day average) on the NYSE for at least 20 consecutive trading days (the "Average Market Price") prior to December 31, 2029. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock acheives Average Market Prices at specified levels in excess of the target market price prior to December 31, 2029. Vested shares, if any, generally are apyable in two equal installments in early 2030 and 2031.

Read SEC document
November 25, 2025 Filed Nov 26, 2025 01:08 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 10,542 $97.88 $1,031,850.96
Disclosure

SEC source: 0001193125-25-297818 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,310

F1 · shares: Shares sold pursuant to a 10b5-1 Plan dated August 6, 2025.

Read SEC document
November 18, 2025 Filed Nov 21, 2025 01:31 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 10,542 $97.77 $1,030,691.34
Disclosure

SEC source: 0001193125-25-290261 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 108,852

F1 · shares: Shares sold pursuant to a 10b5-1 Plan dated August 6, 2025.

Read SEC document
November 11, 2025 Filed Nov 13, 2025 00:28 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 10,543 $97.69 $1,029,945.67
Disclosure

SEC source: 0001193125-25-278250 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,394

F1 · shares: Shares sold pursuant to a 10b5-1 Plan dated August 6, 2025.

Read SEC document
November 04, 2025 Filed Nov 5, 2025 19:19 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 10,543 $96.07 $1,012,866.01
Disclosure

SEC source: 0001193125-25-266571 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,937

F1 · shares: Shares sold pursuant to a 10b5-1 Plan dated August 6, 2025.

Read SEC document
January 06, 2025 Filed Jan 7, 2025 21:40 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 29,516 $56.63 $1,671,491.08
Disclosure

SEC source: 0000950170-25-002901 · ownership.xml · nonDerivative · entry 5

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,480

F8 · shares: Shares withheld for the payment of taxes in connection with the settlement of the 2022-2024 PSUs.

F6 · price: Represents the average of the high and low trading prices for one share of the Issuer's stock on the NYSE on January 6, 2025.

Read SEC document
January 06, 2025 Filed Jan 7, 2025 21:40 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 67,402 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-002901 · ownership.xml · nonDerivative · entry 4

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,996

F7 · shares: Settlement of performance-vested restricted stock units that were granted in 2022, the vesting of which was contingent upon the Issuer's total shareholder return relative to a specified peer group during the period from January 1, 2022 through December 31, 2024 (the "2022-2024 PSUs"). The shares underlying the 2022-2024 PSUs became payable as of January 6, 2025 following certification of the Issuer's achievement of the relevant performance criteria by the Compensation and Leadership Development Committee of the Issuer's Board of Directors.

Read SEC document
January 06, 2025 Filed Jan 7, 2025 21:40 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 3,280 $56.63 $185,746.40
Disclosure

SEC source: 0000950170-25-002901 · ownership.xml · nonDerivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,594

F5 · shares: Shares withheld for the payment of taxes on restricted stock units awarded in 2022. On third of such award vested by its terms on January 6, 2025.

F6 · price: Represents the average of the high and low trading prices for one share of the Issuer's stock on the NYSE on January 6, 2025.

Read SEC document
January 03, 2025 Filed Jan 7, 2025 21:40 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,692 $55.81 $150,240.52
Disclosure

SEC source: 0000950170-25-002901 · ownership.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,874

F3 · shares: Shares withheld for payment of taxes on restricted stock units awarded in 2023 and 2024. One third of each such award vested by the terms thereof on January 3, 2025.

F4 · price: Represents the average of the high and low trading prices for one share of the Issuer's Common Stock on the New York Stock Exchange ("NYSE") on January 3, 2025

Read SEC document
January 03, 2025 Filed Jan 7, 2025 21:40 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 5,560 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-002901 · ownership.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,566

F1 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

F2 · price: Awarded under the Issuer's 2022 Incentive Plan.

Read SEC document
February 13, 2024 Filed Feb 15, 2024 01:15 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 6,325 $41.88 $264,891.00
Disclosure

SEC source: 0001209191-24-003384 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,006

F1 · acquired: Shares sold pursuant to a 10b5-1 Trading Plan dated November 14, 2023.

Read SEC document
February 12, 2024 Filed Feb 15, 2024 01:15 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 6,325 $42.44 $268,433.00
Disclosure

SEC source: 0001209191-24-003384 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,331

F1 · acquired: Shares sold pursuant to a 10b5-1 Trading Plan dated November 14, 2023.

Read SEC document
January 09, 2024 Filed Jan 11, 2024 21:15 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 32,540 $42.44 $1,380,997.60
Disclosure

SEC source: 0001209191-24-001444 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,656

F2 · shares: Shares withheld for payment of taxes in connection with the January 9, 2024 settlement of the 2021-2023 PSUs.

F3 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on January 9, 2024.

Read SEC document
January 09, 2024 Filed Jan 11, 2024 21:15 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 74,309 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-001444 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 148,196

F1 · shares: Settlement of performance-vested restricted stock units that were granted in 2021, the vesting of which was contingent upon the Issuer's total shareholder return relative to a specified peer group during the period from January 1, 2021 through December 31, 2023 (the "2021-2023 PSUs"). The shares underlying the 2021-2023 PSUs became payable as of January 9, 2024 following certification of the Issuer's achievement of the relevant performance criteria by the Compensation and Leadership Development Committee of the Issuer's Board of Directors.

Read SEC document
January 04, 2024 Filed Jan 5, 2024 21:29 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 8,743 $43.56 $380,845.08
Disclosure

SEC source: 0001209191-24-001027 · doc4.xml · nonDerivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,887

F5 · shares: Shares withheld for the payment of taxes on restricted stock units that vested on January 4, 2024.

F6 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on January 4, 2024.

Read SEC document
January 03, 2024 Filed Jan 5, 2024 21:29 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 1,661 $43.19 $71,738.59
Disclosure

SEC source: 0001209191-24-001027 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,630

F3 · shares: Shares withheld for the payment of taxes on restricted stock units that vested on January 3, 2024.

F4 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on January 3, 2024.

Read SEC document
January 03, 2024 Filed Jan 5, 2024 21:29 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 7,299 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-001027 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,291

F1 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

F2 · price: Awarded under ATI's 2022 Incentive Plan.

Read SEC document
August 10, 2023 Filed Aug 11, 2023 21:21 UTC ATI INC ATI · Entity 944 SaleCommon Stock, par value $0.10 per share 12,858 $43.57 $560,223.06
Disclosure

SEC source: 0001209191-23-045478 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,992

F1 · acquired: Shares sold pursuant to a 10b5-1 Trading Plan dated May 10, 2023.

Read SEC document
February 24, 2023 Filed Feb 27, 2023 22:56 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 1,892 $39.45 $74,639.40
Disclosure

SEC source: 0001209191-23-013341 · doc4.xml · nonDerivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,850

F4 · shares: Shares withheld for payment of taxes on restricted stock units awarded on February 24, 2020. One-third of such restricted stock units vested by their terms on February 24, 2023.

F5 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 24, 2023.

Read SEC document
February 23, 2023 Filed Feb 27, 2023 22:56 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 4,119 $40.51 $166,860.69
Disclosure

SEC source: 0001209191-23-013341 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,742

F2 · shares: Shares withheld for payment of taxes in connection with the February 23, 2022 settlement of the 2020-2022 PSUs.

F3 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 23, 2023.

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February 23, 2023 Filed Feb 27, 2023 22:56 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 9,406 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-013341 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,861

F1 · shares: Settlement of performance-vested restricted stock units that were granted in 2020, the vesting of which was contingent upon the Issuer's achievement of specified performance criteria during the period from January 1, 2020 through December 31, 2022 (the "2020-2022 PSUs"). The shares underlying the 2020-2022 PSUs became payable as of February 23, 2023 following certification of the Issuer's achievement of such performance criteria by the Personnel and Compensation Committee of the Issuer's Board of Directors.

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January 04, 2023 Filed Jan 5, 2023 22:57 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 3,279 $30.38 $99,616.02
Disclosure

SEC source: 0001209191-23-002025 · doc4.xml · nonDerivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,455

F5 · shares: Shares withheld for payment of taxes on restricted stock units awarded on January 4, 2022. One-third of such restricted stock units vested by their terms on January 4, 2023.

F4 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange ("NYSE") on January 4, 2023.

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January 04, 2023 Filed Jan 5, 2023 22:57 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 5,701 $30.38 $173,196.38
Disclosure

SEC source: 0001209191-23-002025 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,734

F3 · shares: Shares withheld for payment of taxes on restricted stock units awarded on January 4, 2021. One-third of such restricted stock units vested by their terms on January 4, 2023.

F4 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange ("NYSE") on January 4, 2023.

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January 03, 2023 Filed Jan 5, 2023 22:57 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 10,148 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-002025 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,435

F1 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

F2 · price: Awarded under ATI's 2022 Incentive Plan.

Read SEC document
May 06, 2022 Filed May 9, 2022 19:08 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,639 $26.39 $69,643.21
Disclosure

SEC source: 0001209191-22-027804 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,531

F1 · shares: Shares withheld for payment of taxes on restricted stock units.

F2 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on May 6, 2022.

Read SEC document
February 28, 2022 Filed Mar 2, 2022 18:54 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,288 $25.70 $58,801.60
Disclosure

SEC source: 0001209191-22-014560 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,287

F1 · shares: Shares withheld for payment of taxes on restricted stock units awarded in 2019 that vested by their terms on February 28, 2022.

F2 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 28, 2022.

Read SEC document
February 24, 2022 Filed Feb 28, 2022 22:02 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 1,892 $23.54 $44,537.68
Disclosure

SEC source: 0001209191-22-013645 · doc4.xml · nonDerivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,575

F4 · shares: Shares withheld for payment of taxes on restricted stock units awarded on February 24, 2020. One-third of such restricted stock units vested by their terms on February 24, 2022.

F3 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 24, 2022.

Read SEC document
February 24, 2022 Filed Feb 28, 2022 22:02 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,078 $23.54 $48,916.12
Disclosure

SEC source: 0001209191-22-013645 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,467

F2 · shares: Shares withheld for payment of taxes in connection with the February 24, 2022 settlement of the 2019-2021 PSUs.

F3 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 24, 2022.

Read SEC document
February 24, 2022 Filed Feb 28, 2022 22:02 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 4,745 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-013645 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,545

F1 · shares: Settlement of performance-vested restricted stock units that were granted in 2019, the vesting of which was contingent upon the Issuer's achievement of specified performance criteria during the period form January 1, 2019 through December 31, 2021 (the "2019-2021 PSUs"). The shares underlying the 2019-2021 PSUs became payable as of February 24, 2022 following certification of the Issuer's achievement of such performance criteria by the Personnel and Compensation Committee of the Issuer's Board of Directors.

Read SEC document
January 04, 2022 Filed Jan 6, 2022 21:54 UTC ATI INC ATI · Entity 944 GrantPerformance Stock Unit · Derivative 51,282 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-002206 · doc4.xml · derivative · entry 3

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,282

Underlying: Common Stock · 51,282 shares

Expires 2025-12-31

F5 · derivative.exercise_price: Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 20-trading day average) on the NYSE for at least 20 consecutive trading days ("20-Day Average Market Price") prior to December 31, 2025. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock achieves 20-Day Average Market Prices at specified levels in excess of the target market price prior to December 31, 2025. Vested shares, if any, generally are payable in two equal installments in early 2026 and early 2027.

F4 · price: Awarded under ATI's 2020 Incentive Plan.

F5 · derivative.exercise_date: Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 20-trading day average) on the NYSE for at least 20 consecutive trading days ("20-Day Average Market Price") prior to December 31, 2025. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock achieves 20-Day Average Market Prices at specified levels in excess of the target market price prior to December 31, 2025. Vested shares, if any, generally are payable in two equal installments in early 2026 and early 2027.

F5 · derivative.expiration_date: Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 20-trading day average) on the NYSE for at least 20 consecutive trading days ("20-Day Average Market Price") prior to December 31, 2025. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock achieves 20-Day Average Market Prices at specified levels in excess of the target market price prior to December 31, 2025. Vested shares, if any, generally are payable in two equal installments in early 2026 and early 2027.

Read SEC document
January 04, 2022 Filed Jan 6, 2022 21:54 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 22,467 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-002206 · doc4.xml · nonDerivative · entry 2

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,800

F3 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

F4 · price: Awarded under ATI's 2020 Incentive Plan.

Read SEC document
January 04, 2022 Filed Jan 6, 2022 21:54 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 5,902 $16.74 $98,799.48
Disclosure

SEC source: 0001209191-22-002206 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,333

F1 · shares: Shares withheld for payment of taxes on restricted stock units awarded on January 4, 2021. One-third of such restricted stock units vested by their terms on January 4, 2022.

F2 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange ("NYSE") on January 4, 2022.

Read SEC document
March 01, 2021 Filed Mar 4, 2021 00:46 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,271 $20.69 $46,986.99
Disclosure

SEC source: 0001209191-21-017408 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,235

F1 · shares: Shares withheld for payment of taxes on restricted stock units that vested by their terms on March 1, 2021.

F2 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on March 1, 2021.

Read SEC document
February 24, 2021 Filed Feb 26, 2021 21:13 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,069 $21.28 $44,028.32
Disclosure

SEC source: 0001209191-21-014716 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,506

F1 · shares: Shares withheld for payment of taxes on restricted stock units awarded on February 24, 2020. One-third of such restricted stock units vested by their terms on February 24, 2021.

F2 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 24, 2021.

Read SEC document
January 04, 2021 Filed Jan 6, 2021 21:22 UTC ATI INC ATI · Entity 944 GrantCommon Stock, par value $0.10 per share 37,436 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-002052 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,575

F1 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

Read SEC document
February 27, 2020 Filed Feb 28, 2020 21:26 UTC ATI INC ATI · Entity 944 Tax withholdingCommon Stock, par value $0.10 per share 2,157 $18.12 $39,084.84
Disclosure

SEC source: 0001209191-20-013838 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,139

F1 · shares: Shares withheld for payment of taxes on restricted stock units that vested on February 27, 2020.

F2 · price: Represents the average of the high and low trading prices for one share of the Issuer's common stock on the New York Stock Exchange on February 27, 2020.

Read SEC document
February 24, 2020 Filed Feb 26, 2020 21:07 UTC ATI INC ATI · Entity 944 GrantCommon Stock, $0.10 par value per share 12,962 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-012962 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,296

F1 · shares: Award of restricted stock units, which are settled in shares of stock upon vesting. The award vests in three equal annual installments on each of the first three anniversaries of the grant date.

Read SEC document
August 14, 2019 Filed Aug 15, 2019 10:55 UTC ATI INC ATI · Entity 944 PurchaseCommon Stock, par value $0.10 per share 2,900 $17.80 $51,620.00
Disclosure

SEC source: 0001209191-19-046025 · doc4.xml · nonDerivative · entry 1

Harris Timothy J · CIK 0001776844 · Senior VP and CDIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,334

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.