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 Monday, March 21, 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 319,260 $7,466,958
Chinacast Education (CAST) Sherwood Ned L DIR 499,510 $2,829,628
LL&E Royalty Trust (LRTR) Mehta Shrikant BO 490,397 $604,691
Echo Global Logistics (ECHO) Lefkofsky Eric P DIR,BO 45,947 $563,007
Corelogic (CLGX) Skilling David Van DIR 14,500 $255,563
Unilife (UNIS) Mojdehbakhsh Ramin O 54,600 $252,023
Dicks Sporting Goods (DKS) Stone Larry D DIR 4,000 $155,976
One Liberty Properties (OLP) Lovejoy Jesse Robert DIR 10,000 $146,322
Atricure (ATRC) Discovery Group I BO 11,437 $114,596
China Transinfo Technology (CTFO) Xia Shudong CEO,PR
21,400 $97,704
Hersha Hospitality Trust (HT) Elsztain Eduardo S DIR,BO 2,086,000 $12,605,631
Acme Packet (APKT) Melampy Patrick J CTO,DIR 40,000 $2,744,418
Exide Technologies (XIDE) Gendell Jeffrey L BO 250,000 $2,697,869
Kellogg (K) Kellogg WK Foundation BO 45,400 $2,454,306
Western Refining (WNR) Foster Paul L CB,DIR
127,500 $2,074,525
Stryker Corp (SYK) Stryker Ronda E DIR 27,000 $1,664,835
Host Hotels & Resorts (HST) Walter W Edward PR,CEO 80,000 $1,400,504
Western Refining (WNR) Franklin Mountain Investments BO 85,000 $1,383,005
Reachlocal (RLOC) Hanks Nathan O 58,250 $1,251,512
Host Hotels & Resorts (HST) Larson Gregory J VP 53,958 $949,661

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.