On Holding AG (ONON) Insider Trading
Over the last 3 months, ONON insiders made 2 open-market buys and 1 sale, a net purchase of $3.9M (SEC Form 4). Multiple insiders bought within days of each other (cluster buying). Over the last 6 months, 303 institutions increased and 378 reduced their position (13F).
Insider Activity
Sentiment
99/100
Buys (3m)
2
Sells (3m)
1
Net (3m)
$3.9M
Insiders buyingCluster buying
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Aug
Context3-month price -29%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 17, 2026 | Bernhard Olivierdirector, officer: Executive Officer | Buy | 65,000 | $30.67 |
| Aug 17, 2026 | Coppetti Caspar Felixdirector, officer: Executive Officer & Co-CEO | Buy | 65,000 | $30.67 |
| Jun 29, 2026 | Miele Lauradirector | Tax | 434 | $36.92 |
| Jun 29, 2026 | Helmersson Helenadirector | Tax | 452 | $36.92 |
| Jun 24, 2026 | Helmersson Helenadirector | Grant | 1,736 | — |
| Jun 24, 2026 | Sluis Frankofficer: CFO | Grant | 20,221 | — |
| Jun 24, 2026 | Miele Lauradirector | Grant | 1,736 | — |
| Jun 24, 2026 | Banse Amydirector | Grant | 1,736 | — |
| Jun 24, 2026 | Durkin Dennis Mdirector | Grant | 2,064 | — |
| Jun 24, 2026 | Perez Alexandredirector | Grant | 2,064 | — |
| Jun 9, 2026 | Maguire Scott Andrewofficer: COO | Sell | 1,534 | $36.08 |
| Jun 9, 2026 | Maguire Scott Andrewofficer: COO | Option | 521 | — |
| Jun 9, 2026 | Maguire Scott Andrewofficer: COO | Option | 1,699 | — |
| Jun 9, 2026 | Maguire Scott Andrewofficer: COO | Option | 1,551 | — |
| Jun 9, 2026 | Maguire Scott Andrewofficer: COO | Option | 3,771 | — |
| May 15, 2026 | Coppetti Caspar Felixdirector, officer: Executive Officer & Co-CEO | Buy | 9,147 | $35.97 |
| May 15, 2026 | Bernhard Olivierdirector, officer: Executive Officer | Buy | 9,144 | $35.97 |
| May 15, 2026 | Bernhard Olivierdirector, officer: Executive Officer | Buy | 50,856 | $36.75 |
| May 15, 2026 | Coppetti Caspar Felixdirector, officer: Executive Officer & Co-CEO | Buy | 50,853 | $36.75 |
| May 15, 2026 | Allemann David Michaeldirector, officer: Executive Officer & Co-CEO | Buy | 9,144 | $35.97 |
| May 15, 2026 | Allemann David Michaeldirector, officer: Executive Officer & Co-CEO | Buy | 50,856 | $36.75 |
| Apr 28, 2026 | Hoffmann Martinofficer: CEO | Sell | 4,150 | $35.84 |
| Apr 21, 2026 | Hoffmann Martinofficer: CEO | Sell | 4,150 | $36.56 |
| Apr 15, 2026 | Hoffmann Martinofficer: CEO | Sell | 4,150 | $33.95 |
| Apr 7, 2026 | Hoffmann Martinofficer: CEO | Sell | 4,150 | $33.58 |
| Mar 31, 2026 | Hoffmann Martinofficer: CEO | Option | 11,329 | $32.68 |
| Mar 31, 2026 | Hoffmann Martinofficer: CEO | Option | 25,000 | $37.44 |
| Mar 31, 2026 | Hoffmann Martinofficer: CEO | Option | 12,500 | $32.73 |
| Mar 31, 2026 | Hoffmann Martinofficer: CEO | Sell | 4,150 | $32.31 |
| Mar 26, 2026 | Helmersson Helenadirector | Tax | 440 | $35.16 |
Source: ONON SEC Form 4 filings, latest Aug 17, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ONON positions over the last 6 months (SEC Form 13F).
Increased
303
New positions
184
Reduced
378
Sold out
95
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Reduced | 24.1M | May 15, 2026 |
| MORGAN STANLEY | Reduced | 22.5M | May 15, 2026 |
| MORGAN STANLEY | Reduced | 20.4M | Aug 13, 2026 |
| BAMCO INC /NY/ | Increased | 16.9M | Aug 14, 2026 |
| FMR LLC | Reduced | 16.0M | Aug 13, 2026 |
| LONE PINE CAPITAL LLC | New Position | 13.3M | Aug 14, 2026 |
| PLATINUM PARAMOUNT INVESTMENT LTD. | New Position | 11.3M | Mar 3, 2026 |
| PLATINUM PARAMOUNT INVESTMENT LTD. | Unchanged | 11.3M | May 14, 2026 |
| PLATINUM PARAMOUNT INVESTMENT LTD. | Unchanged | 11.3M | Aug 14, 2026 |
| BAMCO INC /NY/ | Increased | 9.7M | May 15, 2026 |
| JANE STREET GROUP, LLC | Increased | 9.6M | May 12, 2026 |
| CITADEL ADVISORS LLC | Increased | 9.4M | Aug 14, 2026 |
| UBS GROUP AG | Increased | 8.6M | May 5, 2026 |
| JANE STREET GROUP, LLC | Reduced | 8.5M | Aug 14, 2026 |
| Sinvest Investments II Ltd. | Unchanged | 8.4M | Aug 7, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.