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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1354217	Volcano Corp	VOLC	Electromedical & Electrotherapeutic Apparatus (3845)	330928885

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1292605	M David Sheehan	C/O Volcano Corporation 3661 Valley Centre Drive, Suite 200 San Diego CA 92130	Chief Operating Officer	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 Stock	Acquisiton	2012-05-03	1,250	$0.00	19,035	No	4	M	Direct
Common Stock	Disposition	2012-05-04	463	$29.23	18,572	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	Restricted Stock Units	Disposition	2012-05-03	1,250	$0.00	1,250	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
3,750			No	4	M	Direct

Footnotes

Pursuant to an instruction that complies with the provisions of Rule 10b5-1.
1/3 of the remaining Restricted Stock Units vest on each of 5/3/2013, 5/3/2014, and 5/3/2015, contingent upon continuous service.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.09 to $29.23, inclusive. The reporting person undertakes to provide to Volcano Corporation, any security holder of Volcano Corporation, or staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4.