ON Semiconductor Corporation
CH ˙ SWX ˙ US6821891057
SecurityCH:ON / ON Semiconductor Corporation
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership241,990 shares
Latest Disclosed Value $ 14,984,021
Millennium Management Llc ownership in ON / ON Semiconductor Corporation

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 241,990 shares of ON Semiconductor Corporation (CH:ON) valued at $14,984,021 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,349,378 shares of ON Semiconductor Corporation. This represents a change in shares of -89.70% during the quarter.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (ON) in the form of stock options. The firm currently holds call options representing 214,900 of underlying shares valued at $13,306,608 USD and put options representing 221,900 of underlying shares valued at $13,740,048 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

CH:ON / ON Semiconductor Corporation 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 SEMICONDUCTOR COM 682189105 241,990 -2,107,388 -89.70 14,984 -88.22 0.0062
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 2,349,378 94,780 4.20 127,219 14.43 0.0535
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 2,254,598 1,301,599 136.58 111,174 122.59 0.0475
2025-08-14 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 952,999 225,157 30.93 49,947 68.65 0.0241
2025-05-15 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 727,842 103,138 16.51 29,616 -24.81 0.0158
2025-02-14 2024-12-31 13F ON SEMICONDUCTOR COM 682189105 624,704 129,413 26.13 39,388 9.52 0.0192
2024-11-14 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 495,291 156,787 46.32 35,963 54.99 0.0171
2024-08-14 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 338,504 69,325 25.75 23,204 17.20 0.0107
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 269,179 -462,520 -63.21 19,798 -67.61 0.0085
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 731,699 618,678 547.40 61,119 481.80 0.0264
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 113,021 -5,733 -4.83 10,505 -6.46 0.0053
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 118,754 -57,668 -32.69 11,232 -22.67 0.0055
2023-05-15 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 176,422 -403,144 -69.56 14,523 -59.82 0.0083
2023-02-14 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 579,566 -556,229 -48.97 36,148 -48.94 0.0200
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM 682189105 1,135,795 1,104,572 3,537.69 70,794 4,406.30 0.0419
2022-08-15 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 31,223 -291,416 -90.32 1,571 -92.22 0.0010
2022-05-16 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 322,639 -666,585 -67.38 20,200 -69.94 0.0107
2022-02-14 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 989,224 -371,838 -27.32 67,188 7.85 0.0341
2021-11-15 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 1,361,062 345,954 34.08 62,296 60.32 0.0374
2021-08-16 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 1,015,108 3,338 0.33 38,858 -7.70 0.0238
2021-05-17 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 1,011,770 -414,148 -29.04 42,100 -9.79 0.0301
2021-02-16 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 1,425,918 -251,829 -15.01 46,670 28.25 0.0337
2020-11-16 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 1,677,747 273,601 19.49 36,390 30.76 0.0448
2020-08-14 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 1,404,146 1,404,146 27,830 0.0381
2020-05-14 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 0 -51,620 -100.00 0 -100.00
2020-02-14 2019-12-31 13F ON SEMICONDUCTOR COM 682189105 51,620 -214,400 -80.60 1,258 -75.38 0.0016
2019-11-14 2019-09-30 13F ON SEMICONDUCTOR COM 682189105 266,020 -942,750 -77.99 5,110 -79.08 0.0081
2019-08-15 2019-06-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 1,208,770 -2,367,509 -66.20 24,429 -66.79 0.0367
2019-08-14 2019-06-30 13F DOLLAR GEN CORP COM 682189105 623,271 -2,953,008 84,241
2019-05-14 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 3,576,279 360,575 11.21 73,564 38.56 0.1101
2019-02-15 2018-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 3,215,704 3,056,275 1,917.01 53,091 1,707.05 0.0828
2019-02-14 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 3,215,704 53,091
2018-11-14 2018-09-30 13F ON SEMICONDUCTOR COM 682189105 159,429 -2,098,973 -92.94 2,938 -94.15 0.0036
2018-08-14 2018-06-30 13F ON SEMICONDUCTOR COM 682189105 2,258,402 29,482 1.32 50,216 -7.89 0.0655
2018-05-15 2018-03-31 13F ON SEMICONDUCTOR COM 682189105 2,228,920 -1,219,172 -35.36 54,519 -24.49 0.0727
2018-02-14 2017-12-31 13F ON SEMICONDUCTOR COM 682189105 3,448,092 -1,262,450 -26.80 72,203 -17.01 0.0997
2017-11-14 2017-09-30 13F ON SEMICONDUCTOR COM 682189105 4,710,542 1,520,703 47.67 87,004 94.27 0.1326
2017-08-14 2017-06-30 13F ON SEMICONDUCTOR COM 682189105 3,189,839 -750,851 -19.05 44,785 -26.63 0.0799
2017-05-15 2017-03-31 13F ON SEMICONDUCTOR COM 682189105 3,940,690 3,940,690 61,041 0.1118
2017-02-14 2016-12-31 13F ON SEMICONDUCTOR COM 682189105 0 -1,366,393 -100.00 0 -100.00
2016-11-14 2016-09-30 13F ON SEMICONDUCTOR COM 682189105 1,366,393 -47,089 -3.33 16,834 35.03 0.0282
2016-08-15 2016-06-30 13F ON SEMICONDUCTOR COM 682189105 1,413,482 1,312,386 1,298.16 12,467 1,185.26 0.0285
2016-05-16 2016-03-31 13F ON SEMICONDUCTOR COM 682189105 101,096 -1,849,948 -94.82 970 -94.93 0.0024
2016-02-16 2015-12-31 13F ON SEMICONDUCTOR COM 682189105 1,951,044 1,332,197 215.27 19,120 228.69 0.0402
2015-11-16 2015-09-30 13F ON SEMICONDUCTOR COM 682189105 618,847 330,351 114.51 5,817 72.46 0.0113
2015-08-14 2015-06-30 13F ON SEMICONDUCTOR COM 682189105 288,496 -4,208,457 -93.58 3,373 -93.81 0.0064
2015-05-15 2015-03-31 13F ON SEMICONDUCTOR COM 682189105 4,496,953 4,360,486 3,195.27 54,458 3,840.52 0.1013
2015-02-17 2014-12-31 13F ON SEMICONDUCTOR COM 682189105 136,467 -1,163,210 -89.50 1,382 -88.11 0.0029
2014-11-14 2014-09-30 13F ON SEMICONDUCTOR COM 682189105 1,299,677 -1,532,442 -54.11 11,619 -55.11 0.0294
2014-08-14 2014-06-30 13F ON SEMICONDUCTOR COM 682189105 2,832,119 624,283 28.28 25,886 24.73 0.0717
2014-05-15 2014-03-31 13F ON SEMICONDUCTOR COM 682189105 2,207,836 2,084,785 1,694.24 20,754 1,946.75 0.0602
2014-02-14 2013-12-31 13F ON SEMICONDUCTOR COM 682189105 123,051 -752,253 -85.94 1,014 -84.15 0.0032
2013-11-14 2013-09-30 13F ON SEMICONDUCTOR COM 682189105 875,304 38,690 4.62 6,398 -5.36 0.0206
2013-08-14 2013-06-30 13F ON SEMICONDUCTOR COM 682189105 836,614 836,614 6,760 0.0207
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 SEMICONDUCTOR COM Call 214,900 -73.78 13,307 -70.01 n/a n/a n/a
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM Call 819,500 70.41 44,376 87.13 n/a n/a n/a
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM Call 480,900 -0.25 23,713 -6.15 n/a n/a n/a
2025-08-14 2025-06-30 13F ON SEMICONDUCTOR COM Call 482,100 39.05 25,267 79.10 n/a n/a n/a
2025-05-15 2025-03-31 13F ON SEMICONDUCTOR COM Call 346,700 -68.54 14,107 -79.70 n/a n/a n/a
2025-02-14 2024-12-31 13F ON SEMICONDUCTOR COM Call 1,102,000 67.89 69,481 45.78 n/a n/a n/a
2024-11-14 2024-09-30 13F ON SEMICONDUCTOR COM Call 656,400 168.91 47,661 184.83 n/a n/a n/a
2024-08-14 2024-06-30 13F ON SEMICONDUCTOR COM Call 244,100 138.38 16,733 122.19 n/a n/a n/a
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM Call 102,400 -56.78 7,532 -61.94 n/a n/a n/a
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM Call 236,900 -8.11 19,788 -17.42 n/a n/a n/a
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM Call 257,800 46.15 23,963 43.63 n/a n/a n/a
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM Call 176,400 -38.30 16,684 -29.11 n/a n/a n/a
2023-05-15 2023-03-31 13F ON SEMICONDUCTOR COM Call 285,900 -8.01 23,535 21.41 n/a n/a n/a
2023-02-14 2022-12-31 13F ON SEMICONDUCTOR COM Call 310,800 -26.18 19,385 -26.13 n/a n/a n/a
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM Call 421,000 65.55 26,241 105.10 n/a n/a n/a
2022-08-15 2022-06-30 13F ON SEMICONDUCTOR COM Call 254,300 24.47 12,794 0.02 n/a n/a n/a
2022-05-16 2022-03-31 13F ON SEMICONDUCTOR COM Call 204,300 -65.33 12,791 -68.04 n/a n/a n/a
2022-02-14 2021-12-31 13F ON SEMICONDUCTOR COM Call 589,200 76.51 40,018 161.93 n/a n/a n/a
2021-11-15 2021-09-30 13F ON SEMICONDUCTOR COM Call 333,800 0.00 15,278 19.56 n/a n/a n/a
2021-08-16 2021-06-30 13F ON SEMICONDUCTOR COM Call 333,800 -47.33 12,778 -51.55 n/a n/a n/a
2021-05-17 2021-03-31 13F ON SEMICONDUCTOR COM Call 633,800 15.24 26,372 46.50 n/a n/a n/a
2021-02-16 2020-12-31 13F ON SEMICONDUCTOR COM Call 550,000 120.00 18,001 231.94 n/a n/a n/a
2020-11-16 2020-09-30 13F ON SEMICONDUCTOR COM Call 250,000 -10.71 5,423 -2.29 n/a n/a n/a
2020-08-14 2020-06-30 13F ON SEMICONDUCTOR COM Call 280,000 5,550 n/a n/a n/a
2017-02-14 2016-12-31 13F ON SEMICONDUCTOR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-11-14 2016-09-30 13F ON SEMICONDUCTOR COM Call 100,000 1,232 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 SEMICONDUCTOR COM Put 221,900 -66.25 13,740 -61.40 n/a n/a n/a
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM Put 657,400 76.15 35,598 93.45 n/a n/a n/a
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM Put 373,200 -7.03 18,402 -12.53 n/a n/a n/a
2025-08-14 2025-06-30 13F ON SEMICONDUCTOR COM Put 401,400 40.99 21,037 81.60 n/a n/a n/a
2025-05-15 2025-03-31 13F ON SEMICONDUCTOR COM Put 284,700 24.81 11,584 -19.45 n/a n/a n/a
2025-02-14 2024-12-31 13F ON SEMICONDUCTOR COM Put 228,100 -58.49 14,382 -63.96 n/a n/a n/a
2024-11-14 2024-09-30 13F ON SEMICONDUCTOR COM Put 549,500 -28.67 39,899 -24.45 n/a n/a n/a
2024-08-14 2024-06-30 13F ON SEMICONDUCTOR COM Put 770,400 7.21 52,811 -0.08 n/a n/a n/a
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM Put 718,600 64.63 52,853 44.96 n/a n/a n/a
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM Put 436,500 37.70 36,461 23.74 n/a n/a n/a
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM Put 317,000 872.39 29,465 855.72 n/a n/a n/a
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM Put 32,600 -7.12 3,083 6.72 n/a n/a n/a
2023-05-15 2023-03-31 13F ON SEMICONDUCTOR COM Put 35,100 -90.35 2,889 -87.26 n/a n/a n/a
2023-02-14 2022-12-31 13F ON SEMICONDUCTOR COM Put 363,700 -10.81 22,684 -10.76 n/a n/a n/a
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM Put 407,800 12.31 25,418 39.14 n/a n/a n/a
2022-08-15 2022-06-30 13F ON SEMICONDUCTOR COM Put 363,100 2.57 18,268 -17.58 n/a n/a n/a
2022-05-16 2022-03-31 13F ON SEMICONDUCTOR COM Put 354,000 -46.71 22,164 -50.88 n/a n/a n/a
2022-02-14 2021-12-31 13F ON SEMICONDUCTOR COM Put 664,300 -28.88 45,119 5.54 n/a n/a n/a
2021-11-15 2021-09-30 13F ON SEMICONDUCTOR COM Put 934,000 54.64 42,749 84.89 n/a n/a n/a
2021-08-16 2021-06-30 13F ON SEMICONDUCTOR COM Put 604,000 -56.67 23,121 -60.14 n/a n/a n/a
2021-05-17 2021-03-31 13F ON SEMICONDUCTOR COM Put 1,394,000 32.76 58,004 68.78 n/a n/a n/a
2021-02-16 2020-12-31 13F ON SEMICONDUCTOR COM Put 1,050,000 320.00 34,366 533.71 n/a n/a n/a
2020-11-16 2020-09-30 13F ON SEMICONDUCTOR COM Put 250,000 5,423 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.