On Holding AG (ONON) Ownership
ONON ownership summary
as of October 17, 2026- Institutions
- 72.3% of shares outstanding
- Insiders
- 24.22% of shares outstanding
- Shares outstanding
- 301.7M
- Float
- 248.7M shares available to trade
- Short interest
- 11.10% 27.9M shares short
- Days to cover
- 2.51 short interest up 21.6% vs prior month
- Institutions 72.26%
- Insiders 24.22%
- Other investors 3.52%
ONON top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Morgan Stanley - Brokerage Accounts | 6.12% | 20.4M | $710.5M | −2.0M (−9.0%) | June 30, 2026 |
| 2 | BAMCO Inc | 5.07% | 16.9M | $588.3M | +7.2M (+74.3%) | June 30, 2026 |
| 3 | FMR Inc | 4.80% | 16.0M | $557.4M | −8.0M (−33.4%) | June 30, 2026 |
| 4 | Lone Pine Capital LLC | 3.97% | 13.3M | $461.5M | +13.3M (0.0%) | June 30, 2026 |
| 5 | PLATINUM PARAMOUNT INVESTMENT LTD. | 3.38% | 11.3M | $393.1M | — | June 30, 2026 |
| 6 | Sinvest Investments II Ltd. | 2.51% | 8.4M | $291.9M | — | June 30, 2026 |
| 7 | Sands Capital Management, LLC | 2.24% | 7.5M | $260.1M | +1.2M (+18.3%) | June 30, 2026 |
| 8 | Citadel Advisors Llc | 2.12% | 7.1M | $246.7M | +3.3M (+84.6%) | June 30, 2026 |
| 9 | BlackRock Inc | 1.66% | 5.5M | $192.4M | −227,339 (−3.9%) | June 30, 2026 |
| 10 | Jane Street Group LLC | 1.57% | 5.2M | $182.2M | +14,309 (+0.3%) | June 30, 2026 |
| 11 | UBS Group AG | 1.51% | 5.0M | $174.9M | −2.3M (−31.6%) | June 30, 2026 |
| 12 | Marshall Wace Asset Management Ltd | 1.05% | 3.5M | $121.4M | +2.2M (+176.3%) | June 30, 2026 |
| 13 | The Goldman Sachs Group Inc | 1.01% | 3.4M | $117.4M | +783,189 (+30.2%) | June 30, 2026 |
| 14 | Ameriprise Financial Inc | 0.96% | 3.2M | $111.7M | +612,999 (+23.6%) | June 30, 2026 |
| 15 | NORGES BANK | 0.95% | 3.2M | $110.6M | +411,698 (+14.9%) | June 30, 2026 |
| 16 | Ilex Capital Partners (Uk) LLP | 0.91% | 3.0M | $105.2M | −3.6M (−54.0%) | June 30, 2026 |
| 17 | Wellington Management Company LLP | 0.82% | 2.8M | $95.6M | +62,404 (+2.3%) | June 30, 2026 |
| 18 | State Street Corp | 0.73% | 2.4M | $85.0M | −82,826 (−3.3%) | June 30, 2026 |
| 19 | Pertento Partners LLP | 0.67% | 2.2M | $77.4M | +1.9M (+614.1%) | June 30, 2026 |
| 20 | ClearBridge Advisors, LLC | 0.63% | 2.1M | $72.9M | +127,652 (+6.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 31.1M shares and 6 cut 16.2M.
ONON top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Baron Partners Retail | 2.62% | 8.8M | $304.5M | −109,310 (−1.2%) | September 30, 2026 |
| 2 | Baron Focused Growth Retail | 1.68% | 5.6M | $195.1M | +1.1M (+23.5%) | September 30, 2026 |
| 3 | MS INVF Global Opportunity Z | 1.31% | 4.4M | $152.5M | −195,183 (−4.3%) | June 30, 2026 |
| 4 | Fidelity Growth Company Fund | 1.04% | 3.5M | $121.1M | −1.6M (−31.9%) | August 31, 2026 |
| 5 | Sands Capital Global Growth A USD Acc | 0.46% | 1.6M | $54.0M | — | August 31, 2026 |
| 6 | iShares Russell Mid-Cap Growth ETF | 0.38% | 1.3M | $44.3M | −1,362 (−0.1%) | September 30, 2026 |
| 7 | Putnam Sustainable Leaders A | 0.38% | 1.3M | $43.9M | — | August 31, 2026 |
| 8 | Nomura Mid Cap Growth A | 0.38% | 1.3M | $43.6M | +80,845 (+6.9%) | August 31, 2026 |
| 9 | Baron Asset Retail | 0.31% | 1.0M | $36.4M | −100,000 (−8.7%) | September 30, 2026 |
| 10 | Morgan Stanley Inst Global Opp I | 0.31% | 1.0M | $36.0M | −123,550 (−10.7%) | June 30, 2026 |
| 11 | Hartford Growth Opportunities Y | 0.30% | 1.0M | $35.4M | — | August 31, 2026 |
| 12 | Fidelity Growth Company K6 | 0.30% | 1.0M | $34.9M | −402,800 (−28.6%) | August 31, 2026 |
| 13 | PGIM Jennison Mid-Cap Growth Z | 0.30% | 1.0M | $34.8M | — | August 31, 2026 |
| 14 | MS INVF Europe Opportunity Z | 0.29% | 968K | $33.7M | — | July 31, 2026 |
| 15 | Old Westbury Large Cap Strategies | 0.28% | 946K | $32.9M | −101,000 (−9.7%) | July 31, 2026 |
| 16 | iShares Russell Mid-Cap ETF | 0.28% | 934K | $32.4M | +1,729 (+0.2%) | September 30, 2026 |
| 17 | Morgan Stanley Inst Intl Advtg I | 0.27% | 891K | $31.0M | −49,976 (−5.3%) | June 30, 2026 |
| 18 | Fidelity Mid Cap Index | 0.26% | 861K | $29.9M | +4,843 (+0.6%) | August 31, 2026 |
| 19 | iShares Russell 1000 Growth ETF | 0.25% | 848K | $29.5M | −588 (−0.1%) | September 30, 2026 |
| 20 | Fidelity Series Growth Company | 0.25% | 840K | $29.2M | −425,400 (−33.6%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ONON insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-20 | Martin Hoffmann | Sell | $36.56 | 4,150 | $151,724 |
| 2026-04-13 | Martin Hoffmann | Sell | $33.95 | 4,150 | $140,892 |
| 2026-04-06 | Martin Hoffmann | Sell | $33.58 | 4,150 | $139,357 |
| 2026-03-23 | Martin Hoffmann | Sell | $39.79 | 4,150 | $165,128 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
ONON shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ONON
Institutional investors own 72.3% of On's shares and insiders 24.22%. The largest holder is Morgan Stanley - Brokerage Accounts with 6.12% of the shares (20.4M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 6 reduced their stake in the latest filings. Short interest is 11.10% of the float, or 2.51 days of average trading volume. The share count rose 23.8% since 2020.
Related: ONON analyst forecast, ONON key metrics. See the ONON stock overview for the latest quote and news.
ONON ownership FAQ
Who owns the most On stock?
The largest shareholders of On are Morgan Stanley - Brokerage Accounts (6.12%), BAMCO Inc (5.07%), FMR Inc (4.80%), Lone Pine Capital LLC (3.97%), PLATINUM PARAMOUNT INVESTMENT LTD. (3.38%).
What percentage of On is owned by institutions?
Institutions hold 72.3% of On's shares outstanding; insiders hold 24.22%.
Which funds own On?
The largest fund holders of On are Baron Partners Retail (2.62%), Baron Focused Growth Retail (1.68%), MS INVF Global Opportunity Z (1.31%), Fidelity Growth Company Fund (1.04%), Sands Capital Global Growth A USD Acc (0.46%).
What is On's short interest?
27.9M shares of On were sold short, 11.10% of the float; at the average daily volume it would take 2.51 days to cover.
Are insiders buying or selling On?
Of the latest 4 reported insider transactions in On (since March 23, 2026), 0 were purchases and 4 were sales.
How many shares of On are outstanding?
On has 301.7M shares outstanding, of which 248.7M are in the public float.