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Home > Insider Trading > Filing (0001179110-12-005697)

Filing Details

Accession Number:: 0001179110-12-005697
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2012-03-23 17:18:24
Reporting Period:: 2012-03-22

Filing Date:: 2012-03-23
Accepted Time:: 2012-03-23 17:18:24
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1166036	Markwest Energy Partners L P	MWE	Crude Petroleum & Natural Gas (1311)	270005456

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1526751	L Paula Rosson	1515 Arapahoe Street Tower 1 Suite 1600 Denver CO 80202	Vp/Chief Accounting Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Units	Disposition	2012-03-22	4,000	$60.17	23,964	No	4	S	Direct

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

Footnotes

Sales were effected pursuant to instructions given by the reporting person on March 8, 2012, pursuant to a Rule 10b5-1 trading plan.
Amount of securities beneficially owned following the reported transaction(s) includes Common Units owned and Restricted Units subject to varying vesting terms.