SEC Form 4
On Holding AG (ONON) insider trading
In the 12 months to Oct 24, 2026, 3 ONON insiders reported open-market sales of $995.3K across 9 filings; 3 insiders bought $10.6M.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $995.3K
- 9 filings · 3 insiders
- Open-market purchases
- $10.6M
- 5 filings
- Pre-arranged sales (10b5-1)
- 6 of 9
- $880.0K of $995.3K sold (88%)
Who traded ONON, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
ONON daily close from Oct 24, 2025 to Oct 23, 2026, between $26.76 and $50.63, last $32.51. 9 sale and 5 purchase filings by 6 insiders, marked at their filing dates. Caspar Felix Coppetti, Executive Officer & Co-CEO: bought $4.2M across 2 filings, first filed May 15, 2026, last Aug 17, 2026. Olivier Bernhard, Executive Officer: bought $4.2M across 2 filings, first filed May 15, 2026, last Aug 17, 2026. David Michael Allemann, Executive Officer & Co-CEO: bought $2.2M across 1 filing, first filed May 15, 2026, last May 15, 2026. Martin Hoffmann, CEO: sold $880.0K across 6 filings, first filed Mar 24, 2026, last Apr 28, 2026. Scott Andrew Maguire, COO: sold $96.3K across 2 filings, first filed Jun 9, 2026, last Sep 9, 2026. Frank Sluis, CFO: sold $19.1K across 1 filing, first filed Sep 9, 2026, last Sep 9, 2026.
Largest mark · tap a row for others
Caspar Felix Coppetti · Executive Officer & Co-CEO
Purchase $2,198,102
60,000 shares at $36.64 avg
Filed May 15, 2026 · traded May 14
Close on filing date $37.26
Caspar Felix Coppetti · Executive Officer & Co-CEO
Executive Officer & Co-CEO
$4.2M boughtOlivier Bernhard · Executive Officer
Executive Officer
$4.2M boughtDavid Michael Allemann · Executive Officer & Co-CEO
Executive Officer & Co-CEO
$2.2M boughtMartin Hoffmann · CEO
CEO
$880.0K soldScott Andrew Maguire · COO
COO
$96.3K soldFrank Sluis · CFO
CFO
$19.1K soldHas On Holding AG's CEO sold stock?
Yes. Martin Hoffmann (CEO) sold 24,900 shares ($880.0K) between Mar 2026 and Apr 2026, all under a pre-arranged 10b5-1 plan. Caspar Felix Coppetti and David Michael Allemann (CEOs) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
14 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Caspar Felix Coppetti | Executive Officer & Co-CEO | — | $4.2M | 2 | — | |
| Olivier Bernhard | Executive Officer | — | $4.2M | 2 | — | |
| David Michael Allemann | Executive Officer & Co-CEO | — | $2.2M | 1 | — | |
| Martin Hoffmann | CEO | $880.0K | — | 6 | 100% of sales | |
| Scott Andrew Maguire | COO | $96.3K | — | 2 | — | |
| Frank Sluis | CFO | $19.1K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Frank Sluis CFO | Sale | 687 | $27.74 | $19.1K | 997 | |
traded | Scott Andrew Maguire COO | Sale | 1,475 | $27.74 | $40.9K | 7,329 | |
traded | Olivier Bernhard Executive Officer | Purchase | 65,000 | $30.67 | $2.0M | 5,228,184 | |
traded | Caspar Felix Coppetti Executive Officer & Co-CEO | Purchase | 65,000 | $30.67 | $2.0M | 2,440,855 | |
traded | Scott Andrew Maguire COO | Sale | 1,534 | $36.08 | $55.4K | 5,032 | |
traded | David Michael Allemann Executive Officer & Co-CEO | Purchase | 60,000 | $36.63 | $2.2M | 2,841,108 | |
traded | Olivier Bernhard Executive Officer | Purchase | 60,000 | $36.63 | $2.2M | 5,112,328 | |
traded | Caspar Felix Coppetti Executive Officer & Co-CEO | Purchase | 60,000 | $36.64 | $2.2M | 2,325,002 | |
traded | Martin Hoffmann CEO | SalePre-arranged (10b5-1) | 4,150 | $35.84 | $148.8K | 1,385,099 | |
traded | Martin Hoffmann CEO | SalePre-arranged (10b5-1) | 4,150 | $36.56 | $151.7K | 1,389,249 | |
traded | Martin Hoffmann CEO | SalePre-arranged (10b5-1) | 4,150 | $33.95 | $140.9K | 1,393,399 | |
traded | Martin Hoffmann CEO | SalePre-arranged (10b5-1) | 4,150 | $33.58 | $139.4K | 1,397,549 | |
traded | Martin Hoffmann CEO | SalePre-arranged (10b5-1) | 4,150 | $32.31 | $134.1K | 1,401,699 | |
traded | Martin Hoffmann CEO | SalePre-arranged (10b5-1) | 4,150 | $39.79 | $165.1K | 1,357,020 |
GET /stocks/filings/vX/form-4?tickers=ONON&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ONON"
],
"issuer_cik": "0001858985",
"owner_cik": "0002129772",
"accession_number": "0002129772-26-000006",
"form_type": "4",
"filing_date": "2026-09-09",
"period_of_report": "2026-09-05",
"issuer_name": "On Holding AG",
"issuer_trading_symbol": "ONON",
"owner_name": "Maguire Scott Andrew",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "COO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-08",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1475,
"transaction_price_per_share": 27.742,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 7329,
"transaction_value": 40919.450000000004,
"direct_or_indirect": "D"
},
{
"tickers": [
"ONON"
],
"issuer_cik": "0001858985",
"owner_cik": "0002126576",
"accession_number": "0002126576-26-000006",
"form_type": "4",
"filing_date": "2026-09-09",
"period_of_report": "2026-09-05",
"issuer_name": "On Holding AG",
"issuer_trading_symbol": "ONON",
"owner_name": "Sluis Frank",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CFO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-08",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 687,
"transaction_price_per_share": 27.742,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 997,
"transaction_value": 19058.754,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 28 records
- Option exercises6 records
- Tax withholding7 records
- Grants and awards15 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for ONON every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.