ONON · On Holding AG · Insider Trading

The shares are withheld at the election of the reporting person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units granted on September 21, 2026, as reported on the Reporting Person's Form 4 filed on September 23, 2026. The transaction does not represent a discretionary trade by the Reporting Person.

The shares are withheld at the election of the reporting person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units granted on September 21, 2026, as reported on the Reporting Person's Form 4 filed on September 23, 2026. The transaction does not represent a discretionary trade by the Reporting Person.

The shares are withheld at the election of the reporting person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units granted on September 21, 2026, as reported on the Reporting Person's Form 4 filed on September 23, 2026. The transaction does not represent a discretionary trade by the Reporting Person.

On September 21, 2026, the Reporting Person was granted 2,433 restricted stock units, which vested into Class A Shares immediately after the grant.

On September 21, 2026, the Reporting Person was granted 2,433 restricted stock units, which vested into Class A Shares immediately after the grant.

On September 21, 2026, the Reporting Person was granted 2,892 restricted stock units, which vested into Class A Shares immediately after the grant.

On September 21, 2026, the Reporting Person was granted 2,892 restricted stock units, which vested into Class A Shares immediately after the grant.

On September 21, 2026, the Reporting Person was granted 2,433 restricted stock units, which vested into Class A Shares immediately after the grant.

Shares acquired upon the vesting and settlement of restricted stock units at no additional cost. See Table II.

Shares acquired upon the vesting and settlement of restricted stock units at no additional cost. See Table II.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted 06/23/2025; vests quarterly in 1/12 installments ending 06/05/2028.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted 04/01/2026; vests quarterly in 1/12 installments ending 03/05/2029.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted on 03/23/2026; vests quarterly in 1/12 installments ending 03/05/2029.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted 06/22/2026; vests quarterly in 1/12 installments ending 06/05/2029.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $30.5700 to $30.7800, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $30.5700 to $30.7800, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The shares are withheld at the election of the reporting person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units granted on June 22, 2026, as reported on the Reporting Person's Form 4 filed on June 24, 2026. The transaction does not represent a discretionary trade by the Reporting Person.

The shares are withheld at the election of the reporting person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units granted on June 22, 2026, as reported on the Reporting Person's Form 4 filed on June 24, 2026. The transaction does not represent a discretionary trade by the Reporting Person.

On June 22, 2026, the Reporting Person was granted 2,064 restricted stock units, which vested into Class A Shares immediately after the grant.

On June 22, 2026, the Reporting Person was granted 1,736 restricted stock units, which vested into Class A Shares immediately after the grant.

On June 22, 2026, the Reporting Person was granted 1,736 restricted stock units, which vested into Class A Shares immediately after the grant.

On June 22, 2026, the Reporting Person was granted 2,064 restricted stock units, which vested into Class A Shares immediately after the grant.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted 06/22/2026; vests quarterly in 1/12 installments ending 06/05/2029.

On June 22, 2026, the Reporting Person was granted 1,736 restricted stock units, which vested into Class A Shares immediately after the grant.

Shares acquired upon the vesting and settlement of restricted stock units at no additional cost. See Table II.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted on 03/23/2026; vests quarterly in 1/12 installments ending 03/05/2029.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted 06/23/2025; vests quarterly in 1/12 installments ending 06/05/2028.

Each restricted stock unit represents a contingent right to receive one share of the Issuer's class A shares.

Granted 04/01/2026; vests quarterly in 1/12 installments ending 03/05/2029.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $35.3800 to $36.3700, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $35.3800 to $36.3700, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $36.3800 to $36.9700, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $35.3800 to $36.3700, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $36.3800 to $36.9700, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $36.3800 to $36.9700, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 30, 2025.

The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.4150 to $36.1800, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 30, 2025.

The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.9000 to $37.3950, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 30, 2025.

The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.1800 to $34.3950, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 30, 2025.

The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.1000 to $33.9550, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 30, 2025.

The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.7650 to $33.0900, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Options exercised on March 27, 2026. Shares settled on March 30, 2026. Exercise price in cash.

Shares acquired upon exercise of stock option described in Table II.

Options exercised on March 27, 2026. Shares settled on March 30, 2026. Exercise price in cash.

Shares acquired upon exercise of stock option described in Table II.

Options exercised on March 27, 2026. Shares settled on March 30, 2026. Exercise price in cash.

Stock Option granted under the Issuer's Long Term Incentive Plan 2020 (the "LTIP 2020"). All options granted under the LTIP 2020 met their full vesting requirements in connection with the Issuer's initial public offering in September 2021, which constituted an exit event. Outstanding awards under the LTIP 2020 are fully vested and exercisable. Vested options may be exercised until the seventh anniversary of the contractual granting date.

Options exercised on March 27, 2026. Shares settled on March 30, 2026. Exercise price in cash.

Stock Option granted under the Issuer's Long Term Incentive Plan 2020 (the "LTIP 2020"). All options granted under the LTIP 2020 met their full vesting requirements in connection with the Issuer's initial public offering in September 2021, which constituted an exit event. Outstanding awards under the LTIP 2020 are fully vested and exercisable. Vested options may be exercised until the seventh anniversary of the contractual granting date.

The shares are withheld at the election of the reporting person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units. The transaction does not represent a discretionary trade by the Reporting Person.

The shares are withheld at the election of the Reporting Person to satisfy tax withholding obligations in connection with the release of shares underlying restricted stock units. This transaction does not represent a discretionary trade by the Reporting Person.

Effective as of March 24, 2026, 1,051,966 options to purchase Class B ordinary shares held by the Reporting Person were converted based on a board resolution into 105,197 options to purchase Class A ordinary shares. In connection with the conversion, the exercise price was adjusted from 0.773 to 7.73 per share. Except for the change in the class and number of underlying securities and the corresponding exercise price adjustment, the terms of such options remained unchanged.

Stock Option granted under the Issuer's Long Term Incentive Plan 2020 (the "LTIP 2020"). All options granted under the LTIP 2020 met their full vesting requirements in connection with the Issuer's initial public offering in September 2021, which constituted an exit event. Outstanding awards under the LTIP 2020 are fully vested and exercisable. Vested options may be exercised until the seventh anniversary of the contractual granting date.

The Class B Shares are subject to transfer restrictions and rights of first refusal in favor of the other members of the Issuer's extended founder team pursuant to a shareholders' agreement. Upon the occurrence of certain individual or general sunset events specified in the shareholders' agreement, the Class B Shares are subject to mandatory conversion into Class A Shares within a specified timeframe. Conversion of Class B Shares into Class A Shares results in ten (10) Class B Shares being converted into one (1) Class A Share

Effective as of March 24, 2026, 2,110,534 options to purchase Class B ordinary shares held by the Reporting Person were converted based on a board resolution into 211,053 options to purchase Class A ordinary shares. In connection with the conversion, the exercise price was adjusted from 0.773 to 7.73 per share. Except for the change in the class and number of underlying securities and the corresponding exercise price adjustment, the terms of such options remained unchanged.

Stock Option granted under the Issuer's Long Term Incentive Plan 2020 (the "LTIP 2020"). All options granted under the LTIP 2020 met their full vesting requirements in connection with the Issuer's initial public offering in September 2021, which constituted an exit event. Outstanding awards under the LTIP 2020 are fully vested and exercisable. Vested options may be exercised until the seventh anniversary of the contractual granting date.

The Class B Shares are subject to transfer restrictions and rights of first refusal in favor of the other members of the Issuer's extended founder team pursuant to a shareholders' agreement. Upon the occurrence of certain individual or general sunset events specified in the shareholders' agreement, the Class B Shares are subject to mandatory conversion into Class A Shares within a specified timeframe. Conversion of Class B Shares into Class A Shares results in ten (10) Class B Shares being converted into one (1) Class A Share