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 Friday, April 20, 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.

Universal Stainless (USAP) Pennant Capital Mgt BO 63,100 2,772,901
Pimco Inc Opp Fd (PKO) Ivascyn Daniel J O 16,797 441,941
Hallmark Financial (HALL) Detroit Stoker O 32,425 229,488
Us Bancorp (USB) Mitau Lee R VP,GC,SEC 8,000 204,160
Bank Of The Ozarks (OZRK) Reynolds John B DIR 5,000 155,335
Synergy Resources (SYRG) Seward George L DIR 45,000 147,353
Opko Health (OPK) Frost Phillip MD CEO,CB,BO 30,000 143,067
Valhi (VHI) Simmons Harold C CB,DIR,BO 2,000 106,665
Protext Mobility (TXTM) Lewis David M DIR,BO 3,809,600 102,301
Food Technology (VIFL) Fort Ashford BO 11,148 71,459
Source: Insider Insights
QR Energy (QRE) Quantum Resources A1 O 11,297,737 216,690,592
Delphi Automotive (DLPH) Elliott International BO 2,490,886 80,196,712
DDI (DDIC) Riley Bryant R DIR 437,735 5,676,239
Boingo Wireless (WIFI) Mitsui And BO 411,998 4,533,722
Kellogg (K) Kellogg W K Foundation BO 78,000 4,212,141
Elizabeth Arden (RDEN) Mauran Richard C W DIR 89,383 3,575,674
Web Com (WWWW) Brown David CB,CEO,PR 243,507 3,435,375
Oxford Industries (OXM) Lanier J Reese Sr DIR 40,849 1,870,855
Red Hat (RHT) Cunningham Michael VP,GC 25,000 1,533,500
Synchronoss Tech (SNCR) Waldis Stephen G CEO,CB,DIR 40,000 1,265,400
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.