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 open-market insider purchases and sales filed at the Securities and Exchange Commission Tuesday, August 23, 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.

A special note on today's table: The SEC shut down yesterday at about 3:15pm ET as a precaution against aftershocks to the Virginia earthquake. Insider filing volumes were therefore less than expected yesterday, but those delayed filings should make their way to the SEC today.

Kraton Performance Polymers (KRA) GMT Capital BO 43,100 $926,219
State Street (STT) Summe Gregory L DIR 10,000 $319,900
Northrop Grumman (NOC) Bush Wesley G CB,CEO
PR,DIR
5,000 $248,750
Central European Media (CETV) Sach David J CFO 20,000 $240,000
Primus Guaranty (PRS) Second Curve Capital BO 45,000 $237,300
SS&C Technologies (SSNC) Boulanger Normand A PR,COO
DIR
15,000 $232,077
Golden Star Resources (GSS) Thompson Christopher M T DIR 100,000 $232,000
Allscripts Healthcare (MDRX) Tullman Glen CEO,DIR 13,500 $200,340
Chemical Financial (CHFC) Gwizdala Lori A VP,CFO 10,000 $165,000
Isramco (ISRL) Naphtha Holding BO 2,600 $152,200
Source: www.InsiderInsights.com
Motorcar Parts America (MPAA) Marks Mel DIR 50,106 $487,313
Ariba (ARBA) Rubaie Ahmed CFO 20,866 $470,021
Whirlpool (WHR) Todman Michael PR,DIR 5,000 $282,478
Allete (ALE) Shippar Donald J DIR 5,000 $182,240
Reynolds American (RAI) Wajnert Thomas C DIR 4,000 $147,492
Pacwest Bancorp (PACW) Perdue Michael J PR 10,000 $146,540
Astronics (ATRO) Kramer James S VP 5,546 $140,425
Tyler Technologies (TYL) Moore H Lynn Jr VP,GC 5,000 $116,250
Bacterin International (BONE) Holmes Darrel Lee COO 10,133 $32,426
Greene County Bancorp (GCBC) Slutzky Paul DIR 1,100 $20,020
Source: www.InsiderInsights.com

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 InsiderInsights.com, 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 TheStreet.com 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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