ONON On Holding AG
On Holding AG (ONON) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
How much of that selling was preplanned? 88% planned / 12% discretionary
Largest single sale: $165.1K.
Where they traded
Last open-market purchase: August 14, 2026 , by Bernhard Olivier .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| Maguire Scott Andrew | COO | Sell | 1,475 | $27.74 | $40.9K | 7,329 −16.8% of holding | |
| Sluis Frank | CFO | Sell | 687 | $27.74 | $19.1K | 997 −40.8% of holding | |
| Bernhard Olivier | Executive Officer | Buy | 65,000 | $30.67 | $2.0M | 5,228,184 | |
| Coppetti Caspar Felix | Executive Officer & Co-CEO | Buy | 65,000 | $30.67 | $2.0M | 2,440,855 | |
| Maguire Scott Andrew | COO | Sell | 1,534 | $36.08 | $55.4K | 5,032 −23.4% of holding | |
| Coppetti Caspar Felix 2 fills | Executive Officer & Co-CEO | Buy | 60,000 | $36.64 | $2.2M | 2,375,855 | |
| Allemann David Michael 2 fills | Executive Officer & Co-CEO | Buy | 60,000 | $36.63 | $2.2M | 2,841,108 | |
| Bernhard Olivier 2 fills | Executive Officer | Buy | 60,000 | $36.63 | $2.2M | 5,163,184 | |
| Hoffmann Martin | CEO | Sell 10b5-1 | 4,150 | $35.84 | $148.8K | 1,385,099 −0.3% of holding | |
| Hoffmann Martin | CEO | Sell 10b5-1 | 4,150 | $36.56 | $151.7K | 1,389,249 −0.3% of holding | |
| Hoffmann Martin | CEO | Sell 10b5-1 | 4,150 | $33.95 | $140.9K | 1,393,399 −0.3% of holding | |
| Hoffmann Martin | CEO | Sell 10b5-1 | 4,150 | $33.58 | $139.4K | 1,397,549 −0.3% of holding | |
| Hoffmann Martin | CEO | Sell 10b5-1 | 4,150 | $32.31 | $134.1K | 1,401,699 −0.3% of holding | |
| Hoffmann Martin | CEO | Sell 10b5-1 | 4,150 | $39.79 | $165.1K | 1,357,020 −0.3% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.