On Holding (ONON)
On Holding on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders and insider trades. Listed on NYSE.
27.9M
Short interest
settlement 2026-09-30
1.9
Days to cover
-1.2 days vs prior
43.2%
Short share of volume
2026-10-09
767
Fails to deliver
settlement 2026-09-14
$3.9M
Insider flow, 90 days
2 buys, 2 sells
As of 2026-10-09.
Short interest
FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in ONON is 27,891,279 shares, up 4,945,728 shares over the last month. Over the last 48 readings it ranged from 11,141,358 shares (15 April 2026) to 27,891,279 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 14.8M shares a day that is 1.9 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/onon" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 27,891,279 | +21.3% | 14,824,992 | 1.88 |
| 2026-09-15 | 22,998,830 | +0.2% | 7,502,830 | 3.07 |
| 2026-08-31 | 22,945,551 | +32.5% | 7,653,521 | 3.00 |
| 2026-08-14 | 17,319,747 | -12.6% | 11,354,766 | 1.53 |
| 2026-07-31 | 19,819,226 | -6.7% | 4,011,382 | 4.94 |
| 2026-07-15 | 21,251,241 | +2.6% | 4,000,285 | 5.31 |
| 2026-06-30 | 20,710,841 | +5.0% | 5,781,550 | 3.58 |
| 2026-06-15 | 19,729,664 | -1.8% | 4,568,763 | 4.32 |
| 2026-05-29 | 20,083,892 | +28.3% | 5,903,561 | 3.40 |
| 2026-05-15 | 15,655,861 | +23.4% | 8,873,902 | 1.76 |
| 2026-04-30 | 12,689,174 | +13.9% | 4,040,970 | 3.14 |
| 2026-04-15 | 11,141,358 | -24.0% | 7,438,638 | 1.50 |
| 2026-03-31 | 14,651,199 | +4.2% | 8,623,404 | 1.70 |
| 2026-03-13 | 14,064,597 | -1.4% | 8,228,707 | 1.71 |
| 2026-02-27 | 14,264,759 | -14.5% | 4,054,938 | 3.52 |
| 2026-02-13 | 16,692,374 | +4.5% | 4,870,359 | 3.43 |
| 2026-01-30 | 15,977,303 | -29.1% | 4,726,514 | 3.38 |
| 2026-01-15 | 22,519,448 | +3.8% | 5,530,532 | 4.07 |
| 2025-12-31 | 21,687,850 | +6.2% | 3,833,987 | 5.66 |
| 2025-12-15 | 20,425,117 | +9.6% | 5,520,905 | 3.70 |
| 2025-11-28 | 18,641,459 | +8.1% | 6,020,434 | 3.10 |
| 2025-11-14 | 17,248,523 | +0.7% | 14,228,838 | 1.21 |
| 2025-10-31 | 17,133,741 | +16.3% | 5,772,636 | 2.97 |
| 2025-10-15 | 14,732,339 | +0.2% | 5,489,578 | 2.68 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 9 October 2026, the short share of ONON volume is 43.2%, down 2.6 points over the last five sessions. Over the last 30 readings it ranged from 29.5% (4 September 2026) to 65.2% (25 September 2026). The latest reading is in line with the 30-session average of 44.1%, on 4.5M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-09 | 1.9M | 4.5M | 43.2% | 7,807 |
| 2026-10-08 | 2.7M | 5.3M | 50.3% | 2,914 |
| 2026-10-07 | 1.5M | 3.1M | 49.5% | 500 |
| 2026-10-06 | 2.4M | 4.9M | 49.6% | 14,251 |
| 2026-10-05 | 1.9M | 3.8M | 51.0% | 17,275 |
| 2026-10-02 | 2.0M | 4.4M | 45.8% | 6,547 |
| 2026-10-01 | 1.4M | 4.5M | 30.9% | 202 |
| 2026-09-30 | 1.1M | 2.7M | 41.4% | 23,104 |
| 2026-09-29 | 1.5M | 3.0M | 49.1% | 12,919 |
| 2026-09-28 | 1.5M | 3.0M | 50.0% | 8,119 |
| 2026-09-25 | 3.3M | 5.1M | 65.2% | 4,825 |
| 2026-09-24 | 2.9M | 4.6M | 63.4% | 33,568 |
| 2026-09-23 | 3.8M | 7.5M | 50.6% | 13,262 |
| 2026-09-22 | 9.9M | 20.0M | 49.2% | 14,136 |
| 2026-09-21 | 2.6M | 5.6M | 47.1% | 7,594 |
| 2026-09-18 | 4.8M | 9.2M | 51.9% | 53,340 |
| 2026-09-17 | 2.0M | 5.5M | 36.4% | 39,880 |
| 2026-09-16 | 1.2M | 3.7M | 32.0% | 4,235 |
| 2026-09-15 | 1.4M | 3.8M | 36.1% | 20,267 |
| 2026-09-14 | 833K | 2.2M | 37.8% | 0 |
| 2026-09-11 | 1.5M | 3.4M | 44.3% | 3,437 |
| 2026-09-10 | 1.5M | 3.7M | 41.5% | 1,848 |
| 2026-09-09 | 1.3M | 3.6M | 37.5% | 4,433 |
| 2026-09-08 | 1.4M | 4.6M | 31.4% | 2,897 |
| 2026-09-04 | 933K | 3.2M | 29.5% | 55,929 |
| 2026-09-03 | 844K | 2.3M | 36.0% | 1,311 |
| 2026-09-02 | 1.0M | 2.9M | 35.6% | 492 |
| 2026-09-01 | 1.4M | 2.9M | 47.2% | 1,073 |
| 2026-08-31 | 1.1M | 2.7M | 42.5% | 4,461 |
| 2026-08-28 | 1.1M | 2.3M | 45.8% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 September 2026, the fails-to-deliver balance in ONON is 767 shares, up 732 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (20 August 2026) to 54,828 shares (28 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-14 | 767 | $27.41 | $21K |
| 2026-09-09 | 35 | $27.27 | $954 |
| 2026-09-02 | 102 | $27.73 | $3K |
| 2026-08-24 | 321 | $30.02 | $10K |
| 2026-08-20 | 6 | $31.26 | $188 |
| 2026-08-18 | 20,563 | $31.31 | $644K |
| 2026-08-14 | 50 | $31.59 | $2K |
| 2026-08-11 | 6,707 | $38.78 | $260K |
| 2026-08-06 | 605 | $38.19 | $23K |
| 2026-08-04 | 3,894 | $37.95 | $148K |
| 2026-07-20 | 932 | $37.20 | $35K |
| 2026-07-17 | 25 | $38.20 | $955 |
| 2026-07-16 | 129 | $37.46 | $5K |
| 2026-07-13 | 311 | $38.54 | $12K |
| 2026-07-09 | 35,283 | $36.38 | $1.3M |
| 2026-07-08 | 35,283 | $36.62 | $1.3M |
| 2026-07-06 | 99 | $36.83 | $4K |
| 2026-07-02 | 183 | $35.56 | $7K |
| 2026-06-30 | 10 | $35.42 | $354 |
| 2026-06-26 | 102 | $36.58 | $4K |
| 2026-06-22 | 36,843 | $38.88 | $1.4M |
| 2026-06-18 | 4,903 | $37.72 | $185K |
| 2026-06-17 | 33 | $38.06 | $1K |
| 2026-06-15 | 81 | $38.58 | $3K |
| 2026-06-12 | 59 | $39.21 | $2K |
| 2026-06-10 | 58 | $38.25 | $2K |
| 2026-06-04 | 19,889 | $37.52 | $746K |
| 2026-06-03 | 2,526 | $38.32 | $97K |
| 2026-06-01 | 100 | $40.82 | $4K |
| 2026-05-28 | 54,828 | $39.62 | $2.2M |
Insider trades
SEC Form 4, newest first. JSONOver the last 90 days ONON insiders reported 2 open-market buys ($4.0M) against 2 sells ($60K), so the dollar flow leans toward buying. Latest filing: Miele Laura (Director) on 2026-09-24.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-24 | Miele Laura | Director | Tax withholding | 609 | $30.16 | $18K | 11K |
| 2026-09-24 | Helmersson Helena | Director | Tax withholding | 633 | $30.16 | $19K | 6K |
| 2026-09-24 | Durkin Dennis M | Director | Tax withholding | 723 | $30.16 | $22K | 104K |
| 2026-09-21 | Perez Alexandre | Director | Grant | 3K | price not stated in the filing | not stated | 9.8M |
| 2026-09-21 | Miele Laura | Director | Grant | 2K | price not stated in the filing | not stated | 11K |
| 2026-09-21 | Helmersson Helena | Director | Grant | 2K | price not stated in the filing | not stated | 7K |
| 2026-09-21 | Durkin Dennis M | Director | Grant | 3K | price not stated in the filing | not stated | 104K |
| 2026-09-21 | Banse Amy | Director | Grant | 2K | price not stated in the filing | not stated | 82K |
| 2026-09-08 | Sluis Frank | CFO | Sell | 687 | $27.74 | $19K | 997 |
| 2026-09-08 | Maguire Scott Andrew | COO | Sell | 1K | $27.74 | $41K | 7K |
| 2026-09-05 | Sluis Frank | CFO | Option exercise | 2K | $0.00 | $0 | 2K |
| 2026-09-05 | Maguire Scott Andrew | COO | Option exercise | 4K | $0.00 | $0 | 9K |
| 2026-08-14 | Coppetti Caspar Felix | Executive Officer & Co-CEO | Buy | 65K | $30.67 | $2.0M | 2.4M |
| 2026-08-14 | Bernhard Olivier | Executive Officer | Buy | 65K | $30.67 | $2.0M | 5.2M |
| 2026-06-25 | Miele Laura | Director | Tax withholding | 434 | $36.92 | $16K | 9K |
| 2026-06-25 | Helmersson Helena | Director | Tax withholding | 452 | $36.92 | $17K | 4K |
| 2026-06-22 | Banse Amy | Director | Grant | 2K | price not stated in the filing | not stated | 79K |
| 2026-06-22 | Durkin Dennis M | Director | Grant | 2K | price not stated in the filing | not stated | 102K |
| 2026-06-22 | Perez Alexandre | Director | Grant | 2K | price not stated in the filing | not stated | 9.8M |
| 2026-06-22 | Helmersson Helena | Director | Grant | 2K | price not stated in the filing | not stated | 5K |
| 2026-06-22 | Miele Laura | Director | Grant | 2K | price not stated in the filing | not stated | 9K |
| 2026-06-08 | Maguire Scott Andrew | COO | Sell | 2K | $36.08 | $55K | 5K |
| 2026-06-05 | Maguire Scott Andrew | COO | Option exercise | 4K | $0.00 | $0 | 7K |
| 2026-05-14 | Coppetti Caspar Felix | Executive Officer & Co-CEO | Buy | 51K | $36.75 | $1.9M | 2.4M |
| 2026-05-14 | Coppetti Caspar Felix | Executive Officer & Co-CEO | Buy | 9K | $35.97 | $329K | 2.3M |
| 2026-05-14 | Bernhard Olivier | Executive Officer | Buy | 51K | $36.75 | $1.9M | 5.2M |
| 2026-05-14 | Bernhard Olivier | Executive Officer | Buy | 9K | $35.97 | $329K | 5.1M |
| 2026-05-14 | Allemann David Michael | Executive Officer & Co-CEO | Buy | 51K | $36.75 | $1.9M | 2.8M |
| 2026-05-14 | Allemann David Michael | Executive Officer & Co-CEO | Buy | 9K | $35.97 | $329K | 2.8M |
| 2026-04-27 | Hoffmann Martin | CEO | Sell | 4K | $35.84 | $149K | 1.4M |
| 2026-04-20 | Hoffmann Martin | CEO | Sell | 4K | $36.56 | $152K | 1.4M |
| 2026-04-13 | Hoffmann Martin | CEO | Sell | 4K | $33.95 | $141K | 1.4M |
| 2026-04-06 | Hoffmann Martin | CEO | Sell | 4K | $33.58 | $139K | 1.4M |
| 2026-03-30 | Hoffmann Martin | CEO | Sell | 4K | $32.31 | $134K | 1.4M |
| 2026-03-27 | Hoffmann Martin | CEO | Option exercise | 13K | $32.73 | $409K | 1.4M |
| 2026-03-27 | Hoffmann Martin | CEO | Option exercise | 11K | $32.68 | $370K | 1.4M |
| 2026-03-26 | Miele Laura | Director | Tax withholding | 423 | $35.16 | $15K | 8K |
| 2026-03-26 | Helmersson Helena | Director | Tax withholding | 440 | $35.16 | $15K | 3K |
| 2026-03-24 | Perez Alexandre | Director | Grant | 2K | price not stated in the filing | not stated | 9.8M |
| 2026-03-24 | Durkin Dennis M | Director | Grant | 2K | price not stated in the filing | not stated | 100K |
| 2026-03-24 | Banse Amy | Director | Grant | 2K | price not stated in the filing | not stated | 78K |
| 2026-03-24 | Miele Laura | Director | Grant | 2K | price not stated in the filing | not stated | 8K |
| 2026-03-24 | Helmersson Helena | Director | Grant | 2K | price not stated in the filing | not stated | 4K |
| 2026-03-23 | Hoffmann Martin | CEO | Sell | 4K | $39.79 | $165K | 1.4M |
| 2026-03-20 | Hoffmann Martin | CEO | Option exercise | 25K | $37.44 | $936K | 1.4M |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON6 Form 144 notices on file for ONON worth $8.7M at the prices reported; 0 in the last 90 days worth $0. Latest: Maurer Marc filed on 2026-04-08 to sell 165,258 shares ($5.7M) from 2026-04-08.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-04-08 | Maurer MarcFormer Officer | 165K | $5.7M | 0.056% | 2026-04-08 | Fidelity Brokerage Services LLC |
| 2026-03-06 | Maurer MarcOfficer | 14K | $592K | 0.005% | 2026-03-06 | Fidelity Brokerage Services LLC |
| 2026-03-06 | Hoffmann MartinOfficer | 14K | $592K | 0.005% | 2026-03-06 | Fidelity Brokerage Services LLC |
| 2026-03-06 | Coppetti Caspar FelixOfficer, Director | 14K | $592K | 0.005% | 2026-03-06 | Fidelity Brokerage Services LLC |
| 2026-03-06 | Bernhard OlivierOfficer, Director | 14K | $592K | 0.005% | 2026-03-06 | Fidelity Brokerage Services LLC |
| 2026-03-06 | Allemann David MichaelOfficer, Director | 14K | $592K | 0.005% | 2026-03-06 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON10 holders report 5% or more of ONON in their latest filing, all on Schedule 13G (passive). The largest reported stake is David Allemann at 12.9% of the class (43,195,565 shares), filed 2026-08-12 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G | Baron Capital Group, Inc.corporation, parent holding company | 16.9M | 5.7% | 2026-06-30 |
| 2026-08-14 | 13G | Ronald Baronparent holding company, individual | 16.9M | 5.7% | 2026-06-30 |
| 2026-08-14 | 13G | BAMCO INC /NY/investment adviser, corporation | 15.3M | 5.1% | 2026-06-30 |
| 2026-08-14 | 13G | Baron Capital Management, Inc.investment adviser, corporation | 1.6M | 0.5% | 2026-06-30 |
| 2026-08-12 | 13G/Ano. 6 | David Allemannindividual | 43.2M | 12.9% | 2026-06-30 |
| 2026-08-12 | 13G/Ano. 6 | Caspar Coppettiindividual | 42.9M | 12.8% | 2026-06-30 |
| 2026-08-12 | 13G/Ano. 6 | Olivier Bernhardindividual | 42.9M | 12.8% | 2026-06-30 |
| 2026-08-12 | 13G | Martin Hoffmannindividual | 3.2M | 1.0% | 2026-06-30 |
| 2026-08-06 | 13G/Ano. 5 | FMR LLCparent holding company | 16.0M | 5.4% | 2026-06-30 |
| 2026-08-06 | 13G/Ano. 5 | Abigail P. Johnsonindividual | 16.0M | 5.4% | 2026-06-30 |
| 2026-02-12 | 13G | Morgan Stanleyparent holding company, corporation | 19.2M | 6.5% | 2025-12-31 |
| 2026-02-12 | 13G | Morgan Stanley Investment Management Inc.investment adviser, corporation | 18.9M | 6.4% | 2025-12-31 |
| 2025-11-14 | 13G/Ano. 1 | AllianceBernstein L.P.investment adviser | 9.8M | 3.3% | 2025-09-30 |
13F holders
Tracked managers holding ONON at their latest 13F. JSON8 of the 30 tracked managers held ONON at their latest 13F, $855.8M in total at quarter-end prices. Lone Pine Capital is the largest at $470.4M (2.9% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Lone Pine Capital | 2026-06-30 | 13.3M | $470.4M | 2.88% | new |
| Citadel Advisors | 2026-06-30 | 7.1M | $251.5M | 0.03% | +3.3M |
| Millennium Management | 2026-06-30 | 2.0M | $72.5M | 0.03% | +361K |
| D. E. Shaw & Co. | 2026-06-30 | 920K | $32.6M | 0.02% | +870K |
| Gates Foundation Trust | 2026-06-30 | 500K | $17.7M | 0.05% | 0 |
| Bridgewater Associates | 2026-06-30 | 206K | $7.3M | 0.03% | -404K |
| AQR Capital Management | 2026-06-30 | 102K | $3.6M | 0.00% | -39K |
| Two Sigma Investments | 2026-06-30 | 6K | $213K | 0.00% | -4K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
On Holding in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows On Holding (ONON), SEC CIK 1858985, listed on NYSE. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-04-08.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-24.JSON and CSV
- Company record
- EDGAR filing index for CIK 1858985Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of ONON is sold short?
What is ONON's daily short volume?
Does ONON have fails to deliver?
Are ONON insiders buying or selling?
Have ONON insiders filed to sell?
Who owns 5% or more of ONON?
Which tracked 13F managers own ONON?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.