On Holding (NYSE: ONON) co-CEO adds 60,000 Class A shares in open-market buys

Rhea-AI Filing Summary

On Holding AG executive and co-CEO David Michael Allemann bought additional Class A Shares in two open-market transactions. On May 14, 2026, he purchased 50,856 Class A Shares at a weighted average price of $36.7540 and another 9,144 shares at a weighted average price of $35.9730. After these purchases, his directly held stake reported in the filing was between 2,790,252 and 2,841,108 Class A Shares, depending on the specific transaction row referenced.

Insider Trade Summary

Net Buyer: 60,000 shares ($2,198,099)

Net Buy 2 txns

Insider Allemann David Michael

Role Executive Officer & Co-CEO

Bought 60,000 shs ($2.20M)

Type	Security	Shares	Price	Value
Purchase	Class A Shares	9,144	$35.973	$329K
Purchase	Class A Shares	50,856	$36.754	$1.87M

Holdings After Transaction: Class A Shares — 2,790,252 shares (Direct, null)

Footnotes (1)

1. 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.

Key Figures

Shares purchased (block 1): 50,856 shares Price per share (block 1): $36.7540/share Shares purchased (block 2): 9,144 shares +4 more

7 metrics

Shares purchased (block 1) 50,856 shares Class A Shares bought May 14, 2026 at $36.7540 weighted average

Price per share (block 1) $36.7540/share Weighted average purchase price for 50,856 Class A Shares

Shares purchased (block 2) 9,144 shares Class A Shares bought May 14, 2026 at $35.9730 weighted average

Price per share (block 2) $35.9730/share Weighted average purchase price for 9,144 Class A Shares

Total shares purchased 60,000 shares Sum of two open-market purchases reported in Form 4

Post-trade holdings (high) 2,841,108 shares Total Class A Shares directly held after larger transaction row

Post-trade holdings (low) 2,790,252 shares Total Class A Shares directly held after smaller transaction row

Key Terms

open-market purchase, Class A Shares, weighted average purchase price, non-derivative

4 terms

open-market purchase financial

"transaction_action": "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Class A Shares financial

"security_title": "Class A Shares""

Class A shares are one of a company’s distinct types of stock that come with a specific set of rights—commonly different voting power, dividend treatment, or transfer rules—defined in the company’s charter. Investors care because those rights affect control, income and resale value; like holding a seat at a table that has different rules or stronger chips than other seats, owning Class A changes how much influence and return you can expect.

weighted average purchase price financial

"The reported price is a weighted average purchase price."

The weighted average purchase price is the average cost per share you paid across multiple buys, calculated so larger purchases count more than smaller ones. Imagine buying apples at different prices: the overall price you effectively paid depends on how many apples you bought at each price. Investors use it to measure true cost basis, calculate gains or losses, decide when to sell, and manage taxes and portfolio performance.

non-derivative financial

"transaction_type": "non-derivative""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Allemann David Michael

(Last) (First) (Middle)

C/O ON HOLDING AG

FORRLIBUCKSTRASSE 190

(Street)

ZURICH 8005

(City) (State) (Zip)

SWITZERLAND

(Country)

2. Issuer Name and Ticker or Trading Symbol
On Holding AG [ ONON ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Officer & Co-CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Shares	05/14/2026		P		9,144	A	$35.973(1)	2,790,252	D
Class A Shares	05/14/2026		P		50,856	A	$36.754(2)	2,841,108	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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.

	/s/ Zlatina Iliev, Attorney-in-Fact	05/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did On Holding (ONON) report for David Michael Allemann?

On Holding reported that co-CEO David Michael Allemann made two open-market purchases of Class A Shares on May 14, 2026, acquiring a total of 60,000 shares at weighted average prices in the mid-$30 range.

How many On Holding (ONON) shares did the co-CEO buy and at what prices?

David Michael Allemann bought 50,856 Class A Shares at a weighted average price of $36.7540 and 9,144 shares at a weighted average price of $35.9730, all through open-market purchase transactions on May 14, 2026.

What was David Michael Allemann’s On Holding (ONON) ownership after the reported trades?

Following the reported May 14, 2026 purchases, David Michael Allemann’s direct holdings were shown in the filing as between 2,790,252 and 2,841,108 Class A Shares across the two transaction lines, reflecting his sizeable ownership position.

Were the On Holding (ONON) insider purchases single-price or multiple-price trades?

Each reported transaction used a weighted average purchase price. Footnotes explain the 50,856-share block was bought between $36.38 and $36.97, and the 9,144-share block between $35.38 and $36.37, across multiple trades.

What type of security did the On Holding (ONON) insider purchase?

The insider transactions involved purchases of Class A Shares of On Holding AG. Both entries were reported as non-derivative securities acquired in open-market transactions under Form 4, rather than options or other derivative instruments.