CVSA

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in two equal installments beginning on July 15, 2027.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $130.6625 to $134.02. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $135.00 to $135.71. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $135.00 to $135.56. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $135.00 to $135.63. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $135.00 to $135.59. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $130.26 to $131.465. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $130.02 to $130.39. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 11, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $125.00 to $128.20. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $125.00 to $128.09. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $130.00 to $132.67. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 15, 2025 in accordance with Covista's Insider Sales and Ownership Policy Addendum.

Shares sold represent a portion of holdings in excess of Covista's Stock Ownership and Holding Requirements and were executed in pre-scheduled increments under the trading plan.

No discretionary trades by the reporting person are permitted under Covista policy; all sales must occur pursuant to a pre-established Rule 10b5-1 trading plan absent a hardship exception.

This transaction was executed in multiple trades at prices ranging from $124.00 to $125.00. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

The reported securities are held by an irrevocable trust of which the reporting person serves as a trustee.

This transaction was executed in multiple trades at prices ranging from $100.58 to $101.00. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

The reported securities are held by an irrevocable trust of which the reporting person serves as a trustee.

This transaction was executed in multiple trades at prices ranging from $99.51 to $102.73. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades at prices ranging from $99.51 to $102.73. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

The reported securities are held by an irrevocable trust of which the reporting person serves as a trustee.

This transaction was executed in multiple trades at prices ranging from $97.87 to $98.00. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This reported transaction was a gift from Mr. Beard to a Charitable Donor-Advised Fund.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

Represents the satisfaction of tax withholding obligations upon the vesting of previously awarded restricted stock units.

The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. Stock units vest 100% on the one year anniversary of the transaction date.

The number of restricted stock units awarded to the Reporting Person was determined by dividing the total dollar value of director compensation awarded to the Reporting Person by $96.86, the closing price of ATGE common stock on November 12, 2025.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.

The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. Stock units vest 100% on the one year anniversary of the transaction date.

The number of restricted stock units awarded to the Reporting Person was determined by dividing the total dollar value of director compensation awarded to the Reporting Person by $96.86, the closing price of ATGE common stock on November 12, 2025.

The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. Stock units vest 100% on the one year anniversary of the transaction date.

The number of restricted stock units awarded to the Reporting Person was determined by dividing the total dollar value of director compensation awarded to the Reporting Person by $96.86, the closing price of ATGE common stock on November 12, 2025.

The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. Stock units vest 100% on the one year anniversary of the transaction date.

The number of restricted stock units awarded to the Reporting Person was determined by dividing the total dollar value of director compensation awarded to the Reporting Person by $96.86, the closing price of ATGE common stock on November 12, 2025.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.

The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. Stock units vest 100% on the one year anniversary of the transaction date.

The number of restricted stock units awarded to the Reporting Person was determined by dividing the total dollar value of director compensation awarded to the Reporting Person by $96.86, the closing price of ATGE common stock on November 12, 2025.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.

The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. Stock units vest 100% on the one year anniversary of the transaction date.

The number of restricted stock units awarded to the Reporting Person was determined by dividing the total dollar value of director compensation awarded to the Reporting Person by $96.86, the closing price of ATGE common stock on November 12, 2025.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.

Consists of restricted stock units which convert into a share of common stock on a one-for-one basis. The restricted stock units vest in three equal installments beginning on November 12, 2026.