By Jonathan Moreland, founder of InsiderInsights.com 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, March 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.

American Superconductor (AMSC) Douglas Kevin BO 222,000 $5,189,700
Chinacast Education (CAST) Sherwood Ned L DIR 220,420 $1,351,682
Cleco Corp (CNL) Crowell Richard B DIR 10,000 $328,653
Oasis Petroleum (OAS) Collins Ted Jr DIR 5,000 $152,850
Atricure (ATRC) Discovery Group I BO 11,247 $122,015
Opko Health (OPK) Frost Phillip Md CEO,CB
DIR,BO
15,000 $56,475
Alamo Group (ALG) Cornell Helen W DIR 1,000 $27,400
Center Bancorp (CNBC) Seidman Lawrence B DIR,BO 1,600 $14,501
Federal Signal (FSS) Mudge Richard R DIR 2,000 $12,490
Nevada Gold & Casinos (UWN) Sturges Robert B CEO 10,000 $10,900
Source: www.InsiderInsights.com
Resolute Energy (REN) Hicks Thomas O BO 420,000 $7,588,002
Apartment Investment & Mgt (AIV) Considine Terry CB,CEO
DIR
200,000 $4,805,940
Wiley John & Sons (JWA) Pesce William J PR,CEO
DIR
39,071 $1,943,001
DSW (DSW) Ferree Deborah L VCB 43,506 $1,657,294
Stryker (SYK) Stryker Ronda E DIR 27,000 $1,649,322
Sun Hydraulics (SNHY) Koski Christine L DIR,BO 30,610 $1,248,729
Denbury Resources (DNR) Dubuisson Harold Raymond VP,LO 50,496 $1,211,955
Public Storage (PSA) Harkham Uri P DIR 10,000 $1,068,259
Postrock Energy (PSTR) Spears Daniel L DIR 154,721 $780,899
Intermune (ITMN) Welch Daniel G CB,CEO
PR,DIR
17,440 $758,973
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.

If you liked this article you might like

These 5 Stocks Are Set to Soar on Bullish Earnings

Fasten Your Seatbelts: More Craziness in the Week Ahead

4 Stocks Under $10 Making Big Moves: Aegon, Care.com and More

Wind Industry Will Do Just Fine Regardless of U.S. Clean-Energy Subsidy

Sears Soars Nearly +40% As REIT News Boosts Confidence