By Jonathan Moreland, founder of Insider Insights 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 mainly open-market insider purchases and sales filed at the Securities and Exchange Commission Friday, June 24, 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.

Pharmacyclics (PCYC) Duggan Robert W CB,CEO
678,000 $6,000,300
Berkshire Hathaway (BRK.A) Keough Donald R DIR 22 $2,493,348
Mediware Information Systems (MEDW) Auriana Lawrence DIR,BO 22,500 $226,913
Valhi (VHI) Simmons Harold C CB,DIR
4,575 $211,763
China Transinfo Technology (CTFO) Xia Shudong CEO,PR
34,200 $113,236
China Recycling Energy (CREG) Ku Guohua CEO,CB
50,000 $104,056
PSB Holdings (PSBQ) Connor Gordon P DIR 3,433 $82,392
Stage Stores (SSI) Hesterberg Earl J DIR 5,000 $78,150
Philip Morris Intl (PM) Marchionne Sergio DIR 1,150 $75,544
Steel Dynamics (STLD) Teets Richard P Jr VP,DIR 3,532 $53,757
Autozone (AZO) Lampert Edward S BO 258,934 $75,902,534
Wal Mart Stores (WMT) Castro Wright Eduardo VCB 74,006 $3,921,164
Chicago Bridge & Iron (CBI) Asherman Philip K PR,CEO
75,000 $2,654,175
MetroPCS Communications (PCS) TA Associates DIR 150,000 $2,476,620
Aaron S (AAN) Loudermilk R Charles Sr CB,DIR
85,146 $2,321,897
Western Refining (WNR) Foster Paul L CB,DIR
127,500 $2,170,179
Nxstage Medical (NXTM) Utterberg David S DIR,BO 75,056 $1,509,320
Western Refining (WNR) Franklin Mountain Investments BO 85,000 $1,446,782
Netsuite (N) Farrington Deborah A DIR 33,100 $1,258,829
Stryker (SYK) Stryker Ronda E DIR 18,000 $1,037,985

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.

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