On Holding (NYSE: ONON) CEO sells 4,150 shares in planned trade

Rhea-AI Filing Summary

On Holding AG CEO Martin Hoffmann sold 4,150 Class A Shares in an open-market transaction at a weighted average price of $35.8441 per share. The trades, executed at prices between $35.4150 and $36.1800, were made under a pre-arranged Rule 10b5-1 trading plan adopted on May 30, 2025. After this sale, he continues to hold 1,385,099 shares directly, so the transaction represents a small portion of his overall stake.

Insider Trade Summary 10b5-1

Net Seller: 4,150 shares ($148,753)

Net Sell 1 txn

Insider Hoffmann Martin

Role CEO

Sold 4,150 shs ($149K)

Type	Security	Shares	Price	Value
Sale	Class A Shares	4,150	$35.8441	$149K

Holdings After Transaction: Class A Shares — 1,385,099 shares (Direct, null)

Footnotes (1)

1. 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.

Key Figures

Shares sold: 4,150 shares Weighted average sale price: $35.8441 per share Post-transaction holdings: 1,385,099 shares +2 more

5 metrics

Shares sold 4,150 shares Open-market sale of Class A Shares on April 27, 2026

Weighted average sale price $35.8441 per share Average across multiple transactions in the reported sale

Post-transaction holdings 1,385,099 shares CEO Martin Hoffmann’s direct Class A Share holdings after the sale

Sale price range $35.4150–$36.1800 per share Price interval for individual trades within the reported transaction

Trading plan adoption date May 30, 2025 Date CEO adopted the Rule 10b5-1 trading plan used for these sales

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale

3 terms

Rule 10b5-1 trading plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The reported price is a weighted average price. These shares were sold in multiple transactions..."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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).

X

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^*

Hoffmann Martin

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026

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	04/27/2026(1)		S		4,150	D	$35.8441(2)	1,385,099	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 sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 30, 2025.

2. 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.

	/s/ Zlatina Iliev, Attorney-in-Fact	04/28/2026
	** 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 transaction did On Holding (ONON) report for CEO Martin Hoffmann?

On Holding reported that CEO Martin Hoffmann sold 4,150 Class A Shares in an open-market transaction. The sale used a weighted average price of $35.8441 per share and was executed across multiple trades within a narrow price range around $36.

At what prices did the On Holding (ONON) CEO sell his shares?

The CEO’s shares were sold at prices ranging from $35.4150 to $36.1800 per share. The filing reports a weighted average sale price of $35.8441, reflecting multiple individual trades executed within this disclosed price band.

How many On Holding (ONON) shares does the CEO hold after this Form 4 sale?

Following the reported transaction, CEO Martin Hoffmann directly holds 1,385,099 Class A Shares. This shows that the 4,150 shares sold represent only a small fraction of his overall direct ownership position in the company.

Was the On Holding (ONON) CEO’s share sale part of a trading plan?

Yes. The filing states the sales were effected under a Rule 10b5-1 trading plan adopted on May 30, 2025. Such plans allow executives to pre-schedule trades, helping separate routine portfolio management from discretionary timing decisions.

What does a weighted average price mean in this On Holding (ONON) Form 4?

A weighted average price reflects multiple trades executed at different prices, combined into one average figure. Here, the CEO sold 4,150 shares at varying prices between $35.4150 and $36.1800, resulting in a reported weighted average of $35.8441 per share.

Does this On Holding (ONON) Form 4 report any option exercises or derivatives?

No. The reported transaction involves only non-derivative Class A Shares. The filing’s derivative section is empty, indicating no option exercises, conversions, or other derivative-related transactions were disclosed in this particular Form 4.