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 Wednesday, April 18, 2012 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.

Pendrell (PCO) Highland Capital Mgt BO 2,500,000 2,853,402
Cracker Barrel (CBRL) Biglari Sardar BO 43,788 2,442,234
Ev Energy Partners (EVEP) Walker John B CB,DIR 10,000 590,200
Winmark (WINA) Morgan John L CB,CEO,BO 10,000 524,300
Forum Energy Technologies (FET) Myers Franklin DIR 25,000 500,000
Global Indemnity (GBLI) Richmond Hill Investments BO 19,396 347,635
First Opportunity Fund (FOFI) Adams Nicholas C FO 22,014 162,951
Digital Ally (DGLY) Gans Stephen BO 171,483 115,249
Encision (ECIA) Kornelsen Vern D DIR,BO 100,000 100,000
First Opportunity Fund (FOFI) Lola Brown Trust 1b BO 13,642 99,711
Source: Insider Insights
Delphi Automotive (DLPH) Paulson & Co BO 3,032,000 97,704,826
Comcast (CMCSA) Roberts Brian L CB,PR,CEO 105,495 3,150,693
Conns (CONN) Stephens Warren A BO 150,000 2,726,115
Stryker (SYK) Stryker Ronda E DIR 27,000 1,483,236
Priceline Com (PCLN) Boyd Jeffery H PR,CEO,DIR 2,000 1,469,873
Kellogg (K) Kellogg W K Foundation BO 19,500 1,050,126
Linkedin (LNKD) Nishar Dipchand VP 8,988 926,808
Linkedin (LNKD) Scott James Kevin VP 9,000 921,856
Caribou Coffee (CBOU) Tattersfield Michael J CEO,PR 50,000 834,000
Vonage (VG) Citron Jeffrey A DIR,BO 300,000 621,610
Source: Insider Insights

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.