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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1097864	On Semiconductor Corp	ON	Semiconductors & Related Devices (3674)	363840979

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1429850	A. Robert Klosterboer	5005 E. Mcdowell Road Phoenix AZ 85008	Evp & Gm, Asg	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common	Acquisiton	2017-11-10	27,937	$8.40	437,785	No	4	M	Direct
Common	Disposition	2017-11-10	27,937	$21.52	409,848	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common	Stock Option (Right to Buy)	Disposition	2017-11-10	27,937	$0.00	27,937	$8.40

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2013-03-05	2019-03-05	No	4	M	Direct

Footnotes

This disposition transaction was executed in multiple trades at prices ranging from $21.48 to $21.60. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
On March 5, 2012, the Reporting Person was awarded an employee stock option (the "Option") to acquire 57,937 shares (the "Shares") of the Issuer's common stock, including the underlying securities reported in Table II of this Form 4. Pursuant to the terms of the Option, 25% of the Shares became exercisable on March 5, 2013 and the remaining 75% of the Shares became exercisable in equal, quarterly installments thereafter until March 5, 2016, at which time all remaining Shares under the Option became fully exercisable.