ONON · Insider Trading

On Holding AG

Every open-market purchase and sale reported by ONON officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
38
most recent
Open-Market Buys
5
code P
Sales
6
code S
Reporting Insiders
11
current holders
ONON — Recent Form 4 Transactions (latest 2026-09-28)
FiledInsiderRole TypeSharesValue
2026-09-28 Helena Helmersson Director F −633 −$19.09K
2026-09-28 Dennis M Durkin Director F −723 −$21.81K
2026-09-28 Laura Miele Director F −609 −$18.37K
2026-09-23 Dennis M Durkin Director A +2,892 —
2026-09-23 Amy Banse Director A +2,433 —
2026-09-23 Helena Helmersson Director A +2,433 —
2026-09-23 Laura Miele Director A +2,433 —
2026-09-23 Alexandre Perez Director A +2,892 —
2026-09-09 Scott Andrew Maguire COO MIXED +2,297 −$40.92K
2026-09-09 Frank Sluis CFO MIXED +997 −$19.06K
2026-08-17 Olivier Bernhard Executive Officer Buy +65,000 +$1.99M
2026-08-17 Caspar Felix Coppetti Executive Officer & Co-CEO Buy +65,000 +$1.99M
2026-06-29 Laura Miele Director F −434 −$16.02K
2026-06-29 Helena Helmersson Director F −452 −$16.69K
2026-06-24 Alexandre Perez Director A +2,064 —
2026-06-24 Helena Helmersson Director A +1,736 —
2026-06-24 Laura Miele Director A +1,736 —
2026-06-24 Dennis M Durkin Director A +2,064 —
2026-06-24 Frank Sluis CFO A +20,221 deriv. —
2026-06-24 Amy Banse Director A +1,736 —
2026-06-09 Scott Andrew Maguire COO MIXED +2,237 −$55.35K
2026-05-15 David Michael Allemann Executive Officer & Co-CEO Buy +60,000 +$2.20M
2026-05-15 Caspar Felix Coppetti Executive Officer & Co-CEO Buy +60,000 +$2.20M
2026-05-15 Olivier Bernhard Executive Officer Buy +60,000 +$2.20M
2026-04-28 Martin Hoffmann CEO Sell −4,150 −$148.75K
2026-04-21 Martin Hoffmann CEO Sell −4,150 −$151.73K
2026-04-15 Martin Hoffmann CEO Sell −4,150 −$140.91K
2026-04-07 Martin Hoffmann CEO Sell −4,150 −$139.38K
2026-03-31 Martin Hoffmann CEO M +25,000 +$936.00K
2026-03-31 Martin Hoffmann CEO M +23,829 +$779.29K
2026-03-31 Martin Hoffmann CEO Sell −4,150 −$134.07K
2026-03-26 Alexandre Perez Director A +2,008 —
2026-03-26 Dennis M Durkin Director A +2,008 —
2026-03-26 Amy Banse Director A +1,689 —
2026-03-26 Laura Miele Director MIXED +1,266 −$14.87K
2026-03-26 Helena Helmersson Director MIXED +1,249 −$15.47K
2026-03-25 Martin Hoffmann CEO J −2,846,250 deriv. —
2026-03-24 Martin Hoffmann CEO Sell −4,150 −$165.13K
ONON — Current Insider Holders
InsiderRole Shares HeldValue
Alexandre Perez Director 9,778,074 $324.34M
Olivier Bernhard Executive Officer 5,228,184 $173.42M
David Michael Allemann Executive Officer & Co-CEO 2,790,252 $92.55M
Caspar Felix Coppetti Executive Officer & Co-CEO 2,440,855 $80.96M
Martin Hoffmann CEO 1,385,099 $45.94M
Dennis M Durkin Director 103,755 $3.44M
Amy Banse Director 81,914 $2.72M
Laura Miele Director 10,720 $355.58K
Scott Andrew Maguire COO 7,329 $243.10K
Helena Helmersson Director 6,189 $205.29K
Frank Sluis CFO 1,684 $55.86K
ONON Insider Trading FAQ
Who are the insiders at ONON?
11 officers, directors and 10%+ beneficial owners currently report holdings in ONON via SEC Form 4.
Are ONON insiders buying or selling?
Across the 38 most recent Form 4 filings for ONON, 5 were open-market purchases (code P) and 6 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is ONON insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent ONON filing is dated 2026-09-28.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the ONON quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.