Alpha Natural Resources Director Sells $2.2M Worth

NEW YORK (TheStreet) -- Which insiders are selling and buying chunks of stocks?

Below are lists of the top 10 open-market insider purchases and sales filed at the Securities and Exchange Commission Tuesday as ranked by dollar value. Company executives and directors are in the best position to assess the attractiveness of their firms' shares, and here is how many of them are voting their wallets! Please note, however, that these are factual lists, not buy and sell recommendations. Dollar value is only one metric to assess the importance of an insider transaction.

Mimedx Group (MDXG.OB) Petit Parker H CEO,DIR 1,666,667 $1,000,000 Boulder Growth & Inc Fund (BIF) Ernest Horejsi Trust No 1b BO 136,771 $791,504 Vector Group Ltd (VGR) Frost Phillip Md Et Al BO 20,000 $283,000 Mimedx Group (MDXG.OB) Petit Parker H CEO,DIR 200,000 $120,000 LMI Aerospace (LMIA) Saks Ronald S CEO,DIR,BO 7,200 $97,161 Chimera Investment (CIM) Keenan Paul A DIR 24,485 $95,002 Chelsea Therapeutics (CHTP) Austin Josiah T BO 33,000 $89,661 Cogent Communications (CCOI) Liebhaber Richard DIR 7,500 $74,896 Cogent Communications (CCOI) Weingarten Tim DIR 7,379 $74,849 Cogent Communications (CCOI) Bath Blake DIR 7,500 $74,647

Berkshire Hathaway (BRK.B) Bill Melinda Gates Foundation BO 2,393 $7,890,442 Alpha Natural Resources (ANR) Quillen Michael J DIR 50,000 $2,230,000 Helmerich Payne (HP) Helmerich W H III DIR 20,000 $875,824 Savvis (SVVS) Koen Philip J CEO,DIR 55,100 $827,051 Cimarex Energy (XEC) Abbott Gary R VP 13,500 $742,836 National Health Investors (NHI) Webb Robert T DIR 15,000 $563,828 Providence Service (PRSC) Rustand Warren DIR 34,000 $532,709 Double Take Software (DBTK) Abs Partners Iv LLC DIR 47,700 $477,184 Omnivision Technologies (OVTI) Hong Shaw CEO,PR,DIR 30,224 $440,968 Biodel (BIOD) Kroin David DIR 78,890 $399,183

Key to Titles: A=Assistant, AI=Affiliated Investor, AO=Accounting Officer, BD=Business Development, BO=Beneficial Owner, CAO=Chief Accounting Officer, CB=Chairman, CCO=Chief Compliance Officer, CEO=Chief Executive Officer, CFO=Chief Financial Officer, CIO=Chief Information Officer, CO=Compliance Officer, COO=Chief Operating Officer, CT=Controller, CTO=Chief Technology Officer, DIR=Director, F=Founder, FO=Financial Officer, GC=General Counsel, HR=Human Resources, IO=Information Officer, IR=Investor Relations, LO=Legal Officer, MD=Managing Director, O=Officer, OO=Operating Officer, PR=President, PT=Partner, REL=Relative of an insider, SEC=Secretary, SH=Shareholder, SO=Sales Officer, TO=Technology Officer, TR=Treasurer, TT=Trustee, VCB=Vice Chairman, VP=Vice President, X=Ex Officer or other title displayed.

>To order reprints of this article, click here: Reprints