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 open-market insider purchases and sales filed at the Securities and Exchange Commission Tuesday, June 07, 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.

Fortune Brands (FO) Pershing Square Capital BO 501,397 $31,552,260
Overseas Shipholding (OSG) Fribourg Charles DIR 60,000 $1,496,047
ADPT Corp (ADPT) SPH Group BO 474,100 $1,399,584
Overseas Shipholding (OSG) Recanati Oudi DIR,BO 28,500 $737,325
Valhi (VHI) Simmons Harold C CB,DIR
11,775 $508,661
Two Harbors Investment (TWO) Johnson William W DIR 35,000 $372,750
Two Harbors Investment (TWO) Kuhn Steven VP,CIO 30,000 $320,100
DXP Enterprises (DXPE) Little David R CB,CEO
12,700 $309,118
Two Harbors Investment (TWO) Taylor Brian DIR 20,000 $213,600
MAM Software (MAMS) Wynnefield Partners Small Cap Value BO 121,836 $208,340
Travelzoo (TZOO) Azzurro Capital BO 68,839 $4,584,678
SEI Investments (SEIC) West Alfred P Jr DIR,BO 75,000 $1,674,000
Stryker (SYK) Stryker Ronda E DIR 18,000 $1,068,979
Electronics For Imaging (EFII) Rosenzweig Fred PR 54,747 $925,731
Chesapeake Energy (CHK) Dixon Steven C VP,COO 30,000 $918,900
Dolby Laboratories (DLB) Dolby Ray BO 20,000 $889,026
MSCI (MSCI) Retelny Gary BD 24,088 $879,212
Validus Holdings (VR) Singh Alok DIR 26,700 $854,491
Tiffany (TIF) Canavan Beth O VP 10,000 $740,000
Semgroup (SEMG) BNP Paribas BO 26,806 $677,605

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.

If you liked this article you might like

'Mad Money' Lightning Round: Skip Cabela's, Buy Tech Stocks

Jim Cramer's 'Mad Money' Recap: Here's Where Money Can Still Be Made

Academic Research Reveals Strong Stocks

Academic Research Reveals Strong Stocks

Ex-Dividends To Watch: 3 Stocks Going Ex-Dividend Tomorrow: OSG, BWG, GHY

5 Stocks Under $10 Soaring Higher