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 Tuesday 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.
Adaptec (ADPT) Steel Partners II LP BO 609,574 $1,866,927
Photronics (PLAB) GMT Capital Corp BO 85,200 $426,852
Regeneron Pharmaceuticals (REGN) Ryan Arthur F DIR 10,000 $269,800
Taylor Capital Group (TAYC) Second Curve Capital LLC BO 20,000 $241,600
Pacific Harbour Capital (PCF) Reynolds Michael William DIR 3,200,000 $240,000
Hooker Furniture (HOFT) Williamson Henry G Jr DIR 9,000 $109,980
Selectica (SLTC) Miller Lloyd I III BO 15,265 $85,484
Primus Guaranty (PRS) Second Curve Capital LLC BO 20,000 $75,200
Locateplus Holdings (LPHC) Williamson Christian Thoreau DIR 605,457 $54,491
Vectren (VVC) Degraffenreidt James H Jr DIR 2,000 $47,051
Mercadolibre (MELI) Levy Anton J DIR 700,956 $40,674,664
Google (GOOG) Page Lawrence PR,DIR,
55,556 $27,264,044
Gap (GPS) Fisher Doris F O 716,500 $15,871,910
Intrepid Potash (IPI) Harvey Hugh E Jr DIR,BO 500,000 $11,125,000
Intrepid Potash (IPI) Jornayvaz Robert P III CB,DIR,
500,000 $11,125,000
Knight Transportation (KNX) Knight L Randy VCB,DIR 192,102 $4,064,280
Netapp (NTAP) Warmenhoven Daniel J CB 100,000 $4,041,000
Cerner Corp (CERN) Illig Clifford W VCB,DIR 25,851 $2,074,377
American Reprographics (ARP) Chandramohan Sathiyamurthy BO 200,000 $1,749,935
Cinemark Holdings (CNK) Warner Timothy PR,COO 100,000 $1,548,000

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, 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

Stocks Are Fighting Back: Cramer's 'Mad Money' Recap (Wednesday 8/9/17)

Southwest Airlines, Alibaba, Procter & Gamble, Clorox: 'Mad Money' Lightning Round

'I Love the Down-and-Outers': Cramer's 'Mad Money' Recap (Thursday 7/13/17)

You Better Buy Apple Here, a Top Chart-Loving Analyst Says