By Jonathan Moreland, founder of and author of Profit From Legal Insider Trading.

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 Wednesday 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.
Plains Exploration Production (PXP) Flores James C CB,DIR 200,000 $5,912,000
THQ (THQI) Mak Capital One LLC BO 471,349 $3,368,896
Ceco Environmental (CECE) Dezwirek Phillip CB,DIR,
69,100 $245,663
Cleco (CNL) Crowell Richard B DIR 8,200 $219,360
Seattle Genetics Wa (SGEN) Berger Franklin M DIR 11,500 $138,528
Taylor Capital Group (TAYC) Second Curve Capital LLC BO 10,000 $124,600
Geoeye (GEOY) Schuster William COO 2,274 $67,811
New Century Bancorp (NCBC) Harris Oscar N DIR 12,000 $65,400
Arabian American Dev (ARSD) Al Athel Fahad Mohammed Saleh BO 20,000 $54,000
Shiloh Industries (SHLO) Abruzzo Cloyd J DIR 9,876 $53,954
Leucadia National (LUK) Steinberg Joseph S PR,DIR,
1,000,000 $25,063,003
Developers Diversified Realty (DDR) Wolstein Iris S BO 535,304 $6,696,104
Douglas Emmett (DEI) Emmett Dan A CB,DIR,
210,000 $3,225,600
First Cash Financial Svs (FCFS) Burke Richard T BO 100,000 $2,168,778
Rackspace Hosting (RAX) Weston Graham M CB,DIR,
100,000 $1,798,870
Dynegy (DYN) Ls Power Development L L C BO 1,387,670 $1,749,700
SXC Health Solutions (SXCI) Romza John VP,CTO 16,500 $1,112,265
Mellanox Technologies (MLNX) Waldman Eyal CEO,DIR 47,814 $1,110,224
Arca Biopharma (ABIO) Atlas Venture Fund Vii L P BO 140,000 $1,058,400
Lululemon Athletica (LULU) Waterson Sheree VP 23,750 $972,100

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.

Jonathan Moreland is the founder of, which produces a weekly newsletter and offers professional screening and alerting tools to analyze a proprietary, real-time insider data feed. He is also the principal of Insider Asset Management, a registered investment advisor in New York. Mr. Moreland has been analyzing insider data professionally for two decades and has been a contributor to since 2001. A fundamental analyst with an MBA in finance, Mr. Moreland long ago identified insider data as an excellent first screen to determine where to focus his research efforts. He is quoted frequently in the media for his insider analysis and stock recommendations stemming from it. He is also author of Profit From Legal Insider Trading.

Under no circumstances does the information in this column represent a recommendation to buy or sell stocks. While he cannot provide investment advice or recommendations, Moreland appreciates your feedback; click here to send him an email.