On Holding AG
US ˙ NYSE

SecurityONON / On Holding AG
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership3,847,157 shares
Latest Disclosed Value $ 130,880,281
Citadel Advisors Llc ownership in ONON / On Holding AG

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 3,847,157 shares of On Holding AG (US:ONON) valued at $130,880,281 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,078,451 shares of On Holding AG. This represents a change in shares of 24.97% during the quarter. The current value of the position is $142,652,582 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (ONON) in the form of stock options. The firm currently holds call options representing 715,900 of underlying shares valued at $24,354,918 USD and put options representing 1,273,200 of underlying shares valued at $43,314,264 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ONON / On Holding AG Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ON HLDG NAMEN AKT A H5919C104 3,847,157 768,706 24.97 130,880 -8.53 0.0186
2026-02-17 2025-12-31 13F ON HLDG NAMEN AKT A H5919C104 3,078,451 1,228,966 66.45 143,086 82.68 0.0215
2025-11-14 2025-09-30 13F ON HLDG NAMEN AKT A H5919C104 1,849,485 1,757,923 1,919.93 78,326 1,543.76 0.0119
2025-08-14 2025-06-30 13F ON HLDG NAMEN AKT A H5919C104 91,562 -481,826 -84.03 4,766 -81.08 0.0008
2025-05-15 2025-03-31 13F ON HLDG NAMEN AKT A H5919C104 573,388 502,548 709.41 25,183 549.21 0.0048
2025-02-14 2024-12-31 13F ON HLDG NAMEN AKT A H5919C104 70,840 -803,947 -91.90 3,880 -91.16 0.0007
2024-11-14 2024-09-30 13F ON HLDG NAMEN AKT A H5919C104 874,787 97,712 12.57 43,871 45.51 0.0085
2024-08-14 2024-06-30 13F ON HLDG NAMEN AKT A H5919C104 777,075 -495,820 -38.95 30,151 -33.05 0.0061
2024-05-15 2024-03-31 13F ON HLDG NAMEN AKT A H5919C104 1,272,895 702,780 123.27 45,035 192.89 0.0087
2024-02-14 2023-12-31 13F ON HLDG NAMEN AKT A H5919C104 570,115 -2,701,463 -82.57 15,376 -83.11 0.0031
2023-11-14 2023-09-30 13F ON HLDG NAMEN AKT A H5919C104 3,271,578 2,949,183 914.77 91,015 755.48 0.0195
2023-08-14 2023-06-30 13F ON HLDG NAMEN AKT A H5919C104 322,395 -537,178 -62.49 10,639 -60.11 0.0022
2023-05-15 2023-03-31 13F ON HLDG NAMEN AKT A H5919C104 859,573 -552,783 -39.14 26,673 10.05 0.0059
2023-02-14 2022-12-31 13F ON HLDG NAMEN AKT A H5919C104 1,412,356 544,150 62.68 24,236 73.93 0.0057
2022-11-14 2022-09-30 13F ON HLDG NAMEN AKT A H5919C104 868,206 -178,231 -17.03 13,934 -24.73 0.0032
2022-08-15 2022-06-30 13F ON HLDG NAMEN AKT A H5919C104 1,046,437 200,231 23.66 18,511 -13.33 0.0047
2022-05-16 2022-03-31 13F ON HLDG NAMEN AKT A H5919C104 846,206 823,412 3,612.41 21,358 2,377.73 0.0044
2022-02-14 2021-12-31 13F ON HLDG NAMEN AKT A H5919C104 22,794 -623,096 -96.47 862 -95.57 0.0002
2021-11-15 2021-09-30 13F ON HLDG Cmn H5919C104 645,890 645,890 19,461 0.0040
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F ON HLDG NAMEN AKT A Call 715,900 -43.13 24,355 -58.38 n/a n/a n/a
2026-02-17 2025-12-31 13F ON HLDG NAMEN AKT A Call 1,258,800 -6.53 58,509 2.59 n/a n/a n/a
2025-11-14 2025-09-30 13F ON HLDG NAMEN AKT A Call 1,346,700 51.09 57,033 22.93 n/a n/a n/a
2025-08-14 2025-06-30 13F ON HLDG NAMEN AKT A Call 891,300 -27.87 46,392 -14.52 n/a n/a n/a
2025-05-15 2025-03-31 13F ON HLDG NAMEN AKT A Call 1,235,700 -28.43 54,272 -42.61 n/a n/a n/a
2025-02-14 2024-12-31 13F ON HLDG NAMEN AKT A Call 1,726,600 4.29 94,566 13.90 n/a n/a n/a
2024-11-14 2024-09-30 13F ON HLDG NAMEN AKT A Call 1,655,600 -12.62 83,028 12.94 n/a n/a n/a
2024-08-14 2024-06-30 13F ON HLDG NAMEN AKT A Call 1,894,800 -29.20 73,518 -22.36 n/a n/a n/a
2024-05-15 2024-03-31 13F ON HLDG NAMEN AKT A Call 2,676,400 71.21 94,691 124.60 n/a n/a n/a
2024-02-14 2023-12-31 13F ON HLDG NAMEN AKT A Call 1,563,200 43.98 42,160 39.58 n/a n/a n/a
2023-11-14 2023-09-30 13F ON HLDG NAMEN AKT A Call 1,085,700 -16.93 30,204 -29.96 n/a n/a n/a
2023-08-14 2023-06-30 13F ON HLDG NAMEN AKT A Call 1,306,900 6.06 43,128 12.79 n/a n/a n/a
2023-05-15 2023-03-31 13F ON HLDG NAMEN AKT A Call 1,232,200 46.43 38,235 164.79 n/a n/a n/a
2023-02-14 2022-12-31 13F ON HLDG NAMEN AKT A Call 841,500 -38.12 14,440 -33.84 n/a n/a n/a
2022-11-14 2022-09-30 13F ON HLDG NAMEN AKT A Call 1,359,900 57.10 21,826 42.54 n/a n/a n/a
2022-08-15 2022-06-30 13F ON HLDG NAMEN AKT A Call 865,600 244.72 15,312 141.59 n/a n/a n/a
2022-05-16 2022-03-31 13F ON HLDG NAMEN AKT A Call 251,100 90.52 6,338 27.19 n/a n/a n/a
2022-02-14 2021-12-31 13F ON HLDG NAMEN AKT A Call 131,800 321.09 4,983 428.42 n/a n/a n/a
2021-11-15 2021-09-30 13F ON HLDG Cmn Call 31,300 943 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F ON HLDG NAMEN AKT A Put 1,273,200 -44.02 43,314 -59.03 n/a n/a n/a
2026-02-17 2025-12-31 13F ON HLDG NAMEN AKT A Put 2,274,500 33.95 105,719 47.01 n/a n/a n/a
2025-11-14 2025-09-30 13F ON HLDG NAMEN AKT A Put 1,698,000 47.36 71,910 19.90 n/a n/a n/a
2025-08-14 2025-06-30 13F ON HLDG NAMEN AKT A Put 1,152,300 27.30 59,977 50.86 n/a n/a n/a
2025-05-15 2025-03-31 13F ON HLDG NAMEN AKT A Put 905,200 -5.03 39,756 -23.84 n/a n/a n/a
2025-02-14 2024-12-31 13F ON HLDG NAMEN AKT A Put 953,100 25.21 52,201 36.74 n/a n/a n/a
2024-11-14 2024-09-30 13F ON HLDG NAMEN AKT A Put 761,200 -50.69 38,174 -36.27 n/a n/a n/a
2024-08-14 2024-06-30 13F ON HLDG NAMEN AKT A Put 1,543,800 -13.20 59,899 -4.81 n/a n/a n/a
2024-05-15 2024-03-31 13F ON HLDG NAMEN AKT A Put 1,778,500 46.66 62,923 92.39 n/a n/a n/a
2024-02-14 2023-12-31 13F ON HLDG NAMEN AKT A Put 1,212,700 1.46 32,707 -1.64 n/a n/a n/a
2023-11-14 2023-09-30 13F ON HLDG NAMEN AKT A Put 1,195,200 3.04 33,250 -13.13 n/a n/a n/a
2023-08-14 2023-06-30 13F ON HLDG NAMEN AKT A Put 1,159,900 -16.02 38,277 -10.69 n/a n/a n/a
2023-05-15 2023-03-31 13F ON HLDG NAMEN AKT A Put 1,381,200 1,313.72 42,859 2,457.16 n/a n/a n/a
2023-02-14 2022-12-31 13F ON HLDG NAMEN AKT A Put 97,700 -60.06 1,677 -57.31 n/a n/a n/a
2022-11-14 2022-09-30 13F ON HLDG NAMEN AKT A Put 244,600 -19.57 3,926 -27.03 n/a n/a n/a
2022-08-15 2022-06-30 13F ON HLDG NAMEN AKT A Put 304,100 -33.11 5,380 -53.11 n/a n/a n/a
2022-05-16 2022-03-31 13F ON HLDG NAMEN AKT A Put 454,600 81.48 11,474 21.15 n/a n/a n/a
2022-02-14 2021-12-31 13F ON HLDG NAMEN AKT A Put 250,500 44.13 9,471 80.85 n/a n/a n/a
2021-11-15 2021-09-30 13F ON HLDG Cmn Put 173,800 5,237 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.