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 Thursday, September 22, 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.

Jefferies Group (JEF) Leucadia National Corp BO 2,000,000 $25,160,000
Cumulus Media (CMLS) Crestview Radio Investors DIR,BO 3,425,770 $9,900,715
Aruba Networks (ARUN) Leone Douglas M DIR 351,931 $7,126,372
Transcept Pharmaceuticals (TSPT) Ehrlich Christopher B DIR,BO 732,076 $4,963,396
Zogenix (ZGNX) Scale Venture Partners II Lp BO 1,250,000 $2,500,000
Valhi (VHI) Simmons Harold C CB,DIR
BO
27,070 $1,381,467
Community Trust Bancorp (CTBI) Parrish M Lynn DIR 20,000 $473,782
Smithfield Foods (SFD) Nelson David C DIR 25,000 $461,605
Benihana (BNHNA) Coliseum Capital Management BO 42,335 $350,008
NL Industries (NL) Simmons Harold C CB,CEO
DIR,BO
20,000 $242,333
Source: www.InsiderInsights.com
Heinz HJ (HNZ) Peltz Nelson DIR 835,000 $42,362,248
Jefferies Group (JEF) Handler Richard B CB,CEO
DIR
2,000,000 $25,160,000
Primus Guaranty (PRS) Second Curve Capital BO 500,000 $2,510,000
Abercrombie & Fitch (ANF) Stapleton Craig R DIR 7,398 $515,641
Cimarex Energy (XEC) Richardson Thomas A VP,GC 8,000 $472,188
Pimco Global Stocks plus Inc Fund (PGP) Gross William H O 21,200 $406,306
Best Buy (BBY) Surface Carol A VP,HR 10,894 $276,521
ECB Bancorp (ECBE) Gibbs Charles G Jr BO 15,000 $161,250
Northwest Natural Gas (NWN) Dodson Mark S DIR 1,000 $44,178
Dreams (DRJ) Larsson Dale E DIR 12,000 $24,600
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.