David Michael Allemann - 18 Mar 2026 Form 3 Insider Report for On Holding AG (ONON)

Role: Executive Officer, Director
Signature: /s/ Zlatina Iliev, Attorney-in-Fact
Issuer symbol: ONON
Transactions as of: 18 Mar 2026
Net transactions value: $0
Form type: 3
Filing time: 18 Mar 2026, 12:04:28 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Allemann David Michael	Executive Officer, Director	C/O ON HOLDING AG, FORRLIBUCKSTRASSE 190, ZURICH, SWITZERLAND	/s/ Zlatina Iliev, Attorney-in-Fact	18 Mar 2026	0001859853

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	ONON	Class A Shares						2,781,108	18 Mar 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	ONON	Class B Shares	18 Mar 2026	Class A Shares	10,000,000		Direct	F1
holding	ONON	Non-Qualified Stock Option (Right to Buy)	18 Mar 2026	Class B Shares	2,110,534	$0.7730	Direct	F1, F2
holding	ONON	Non-Qualified Stock Option (Right to Buy)	18 Mar 2026	Class B Shares	1,051,966	$0.7730	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	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.

Content

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.

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.