On Holding AG (ONON) CEO executes pre-planned sale of 4,150 Class A Shares

Rhea-AI Filing Summary

On Holding AG CEO Martin Hoffmann sold 4,150 Class A Shares in an open-market trade. The shares were sold on April 20, 2026 at a weighted average price of $36.5614 per share, in multiple transactions between $35.9000 and $37.3950. After the sale, he directly holds 1,389,249 Class A Shares. The sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person.

Insights

Equity compensation and insider-trading analyst

CEO executes small, pre-planned share sale under Rule 10b5-1 plan.

The CEO of On Holding AG, Martin Hoffmann, completed an open-market sale of 4,150 Class A Shares at a weighted average of $36.5614 on April 20, 2026. The trades occurred within a price range from $35.9000 to $37.3950.

Following the transaction, he continues to directly hold 1,389,249 Class A Shares, indicating that the sale is small relative to his remaining position. The filing notes that the sale was executed pursuant to a Rule 10b5-1 trading plan, which is a pre-arranged trading program designed to systematically sell shares over time.

Because the transaction is modest in size and conducted under a pre-established plan, it typically carries limited informational value about management’s view of the company. Future company filings may provide additional context on any further transactions under this plan.

Insider Trade Summary 10b5-1

Net Seller: 4,150 shares ($151,730)

Net Sell 1 txn

Insider Hoffmann Martin

Role CEO

Sold 4,150 shs ($152K)

Type	Security	Shares	Price	Value
Sale	Class A Shares	4,150	$36.5614	$152K

Holdings After Transaction: Class A Shares — 1,389,249 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 $35.9000 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.

Key Figures

Shares sold: 4,150 shares Weighted average sale price: $36.5614 per share Post-transaction holdings: 1,389,249 shares +1 more

4 metrics

Shares sold 4,150 shares Open-market sale on April 20, 2026

Weighted average sale price $36.5614 per share Class A Shares sale on April 20, 2026

Post-transaction holdings 1,389,249 shares Class A Shares directly held after sale

Sale price range $35.9000–$37.3950 per share Multiple transactions included in reported sale

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"

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)
04/20/2026

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	04/20/2026(1)		S		4,150	D	$36.5614(2)	1,389,249	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 $35.9000 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.

	/s/ Zlatina Iliev, Attorney-in-Fact	04/21/2026
	** 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 AG (ONON) report for CEO Martin Hoffmann?

On Holding AG reported that CEO Martin Hoffmann sold 4,150 Class A Shares in an open-market transaction. The sale occurred on April 20, 2026 at a weighted average price of $36.5614 per share, executed in multiple trades within a disclosed price range.

At what prices did the On Holding AG CEO sell his ONON Class A Shares?

The CEO’s reported sale used a weighted average price of $36.5614 per share. According to the filing, individual trades were executed in multiple transactions at prices ranging from $35.9000 to $37.3950 per share, inclusive, on April 20, 2026.

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

After selling 4,150 Class A Shares, CEO Martin Hoffmann directly holds 1,389,249 Class A Shares of On Holding AG. This figure reflects his position immediately following the April 20, 2026 open-market sale reported in the Form 4 filing.

Was the On Holding AG CEO’s ONON share sale part of a Rule 10b5-1 plan?

Yes. The filing states that the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Such plans pre-arrange trading activity, helping separate routine liquidity or diversification trades from discretionary timing decisions.

How large was the CEO’s On Holding AG (ONON) share sale compared with his remaining holdings?

The CEO sold 4,150 Class A Shares and retained 1,389,249 Class A Shares directly after the transaction. This indicates the reported sale represents only a small portion of his total direct holdings at the time of the April 20, 2026 trade.