Senior insider sale

CEO at ON HOLDING AG — senior position signals high conviction

$8.90M

197.90K shares

What this filing means

HOFFMANN MARTIN plans to sell 197.90K shares of ON HOLDING AG valued at approximately $8.90M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

HOFFMANN MARTIN

Filed: 12/30/2025ACC: 0001958244-25-004575

InsiderHOFFMANN MARTINCIK 1860218

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IssuerON HOLDING AGCIK 1858985

Officer· CEO

Since Mar 2026

197.90K

Shares to sell

$8.90M

Approx. market value

49.80K

Acquired (3 months)

Planned

17 completed

Securities Acquired — Last 3 Months1

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Acquired from Issuer in private transaction

12/21/2017

49.80K

Total acquired49.80K

Acquisition Date	Type	Amount Acquired	Gift
12/21/2017	Acquired from Issuer in private transaction NA	49.80K	—
Total		49.80K

Planned & Completed Dispositions18

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Completed

—Completed

Units to sell

4.15K

Market value

$197.1K

12/29/2025

—Completed

Units to sell

4.15K

Market value

$199.9K

12/22/2025

—Completed

Units to sell

4.15K

Market value

$199.2K

12/15/2025

—Completed

Units to sell

4.15K

Market value

$193.6K

12/8/2025

—Completed

Units to sell

40K

Market value

$1.91M

12/5/2025

—Completed

Units to sell

4.15K

Market value

$185.2K

12/1/2025

—Completed

Units to sell

25K

Market value

$1.10M

11/28/2025

—Completed

Units to sell

4.15K

Market value

$170.3K

11/24/2025

—Completed

Units to sell

4.15K

Market value

$174.0K

11/17/2025

—Completed

Units to sell

25K

Market value

$1.04M

11/13/2025

—Completed

Units to sell

4.15K

Market value

$145.0K

11/10/2025

—Completed

Units to sell

4.15K

Market value

$150.7K

11/3/2025

—Completed

Units to sell

4.15K

Market value

$176.1K

10/27/2025

—Completed

Units to sell

4.15K

Market value

$174.0K

10/20/2025

—Completed

Units to sell

4.15K

Market value

$176.3K

10/13/2025

—Completed

Units to sell

4.15K

Market value

$175.9K

10/6/2025

—Completed

Units to sell

4.15K

Market value

$171.1K

10/1/2025

Planned — Approximate Date

NYSEPlanned

Units to sell

49.80K

Market value

$2.36M

12/30/2025

Total

Units

197.90K

Value

$8.90M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
12/29/2025	4.15K	$197.1K	—	Completed
12/22/2025	4.15K	$199.9K	—	Completed
12/15/2025	4.15K	$199.2K	—	Completed
12/8/2025	4.15K	$193.6K	—	Completed
12/5/2025	40K	$1.91M	—	Completed
12/1/2025	4.15K	$185.2K	—	Completed
11/28/2025	25K	$1.10M	—	Completed
11/24/2025	4.15K	$170.3K	—	Completed
11/17/2025	4.15K	$174.0K	—	Completed
11/13/2025	25K	$1.04M	—	Completed
11/10/2025	4.15K	$145.0K	—	Completed
11/3/2025	4.15K	$150.7K	—	Completed
10/27/2025	4.15K	$176.1K	—	Completed
10/20/2025	4.15K	$174.0K	—	Completed
10/13/2025	4.15K	$176.3K	—	Completed
10/6/2025	4.15K	$175.9K	—	Completed
10/1/2025	4.15K	$171.1K	—	Completed
Planned — Approximate Date
12/30/2025	49.80K	$2.36M	NYSE	Planned
Total	197.90K	$8.90M