Home > Insider Trading > Filing (0001225208-10-006911)

Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1097864	On Semiconductor Corp	ONNN	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	Svp & Gm, Dig & Mxdsig Prd Grp	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	Disposition	2010-03-01	895	$8.20	26,681	No	4	F	Direct
Common	Disposition	2010-03-02	7,500	$8.31	19,181	No	4	S	Direct

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

Footnotes

On March 1, 2010, the Reporting Person vested in 2,836 restricted stock units ("RSUs") and as a result acquired 2,836 shares of common stock of the Issuer pursuant to the Reporting Person's January 29, 2007 grant of RSUs. The RSUs acquisition was previously reported on an earlier Form 4 filed by the Reporting Person. This Form 4 reports the disposition of shares withheld by the Issuer pursuant to the RSUs' grant agreement in order to satisfy the Reporting Person's withholding obligations for various taxes due upon the vesting of the RSUs. The Issuer will pay the taxes on behalf of the Reporting Person.
These transactions were made pursuant to the Reporting Person's existing Rule 10b5-1 plan (i.e. a stock trading plan designed to comply with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended). This disposition transaction was executed in multiple trades at prices ranging from $8.30 to $8.32. 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.