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 Tuesday, April 3, 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.

Enphase Energy (ENPH) Loeb Daniel S DIR,BO 919,890 $7,379,954
Ascent Solar Technologies (ASTI) TFG Radiant Investment BO 8,067,390 $4,001,426
Spectrum Brands (SPB) Harbinger Group BO 105,100 $3,674,865
Paramount Gold & Silver (PZG) FCMI Financial BO 1,170,732 $2,400,001
Air T (AIRT) AO Partners BO 58,026 $554,373
Rait Financial Trust (RAS) Rima Senvest Management BO 99,856 $498,281
Cafepress (PRSS) Dearing Michael Charles DIR 25,000 $475,000
Encision (ECIA) CMED Partners BO 414,000 $414,000
Ironstone Group (IRNS) Hambrecht William R DIR,BO 1,130,857 $339,257
Opko Health (OPK) Frost Phillip Md CEO,CB
45,000 $210,635
Delphi Automotive (DLPH) Elliott Associates BO 2,885,603 $91,038,152
Oxford Industries (OXM) Lanier J Reese Sr DIR 235,086 $11,944,202
Cafepress (PRSS) Durham Fred E III DIR,BO 597,562 $10,558,921
Cafepress (PRSS) Jain Family Trust BO 547,882 $9,681,075
Mattel (MAT) Eckert Robert DIR 274,118 $9,341,914
Cornerstone Therapeutics (CRTX) Collard Craig A CEO,DIR
1,443,913 $9,024,456
Google (GOOG) Doerr L John DIR 12,933 $8,333,990
Masimo (MASI) Coleman Robert DIR 248,000 $5,791,222
Zynga (ZNGA) Wehner David M CFO 447,082 $5,272,248
Zynga (ZNGA) Davis Reginald D VP,GC
315,277 $3,670,574

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.