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 Thursday, Feb. 17, 2011 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.

Chevron (CVX) Stumpf John G DIR 10,000 $964,336
Pennymac Mortgage (PMT) Kurland Stanford L CB,CEO
50,000 $900,000
Airgas (ARG) Miller Ted B Jr DIR 10,000 $645,000
Spectrum Group (SPGZ) Roberts Gregory N CEO,DIR 200,000 $412,000
Transdigm (TDG) Hennessy Sean P DIR 5,000 $408,297
Boeing (BA) Williams Ronald A DIR 4,200 $300,571
Chimera Investment (CIM) Lambiase Matthew CEO,PR
50,000 $209,000
Spectrum Group (SPGZ) Benjamin Jeffrey D DIR 100,000 $205,000
Pennymac Mortgage (PMT) Spector David PR,COO
10,000 $180,000
Coca Cola Enterprises (CCE) Brock John CB,CEO
6,860 $179,651
TD Ameritrade (AMTD) TD Luxembourg Intl BO 1,228,612 $26,175,050
Acme Packet (APKT) Bowen Gary J DIR 200,000 $14,653,552
LML Payment Systems (LMLP) Millennium Partners BO 1,002,000 $5,084,801
AC Moore Arts & Crafts (ACMR) Glenhill Advisors Llc BO 1,000,000 $2,958,332
Acme Packet (APKT) Melampy Patrick J CTO,DIR 40,000 $2,918,122
Netsuite (N) Nelson Zachary PR,CEO
80,749 $2,389,678
Sinclair Broadcast (SBGI) Smith Frederick G VP,DIR
181,275 $2,287,963
Inergy LP (NRGY) Hughes Carl A VP,PT 50,000 $2,099,715
Andersons (ANDE) Anderson Richard P CB 35,000 $1,673,350
Quinstreet (QNST) Simons James R DIR 69,300 $1,673,203

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, EVP=Executive Vice President, 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.