Insiders Trading JNS, OPK, ZIPR, PRKR

By Jonathan Moreland, founder of Insider Insights and author of Profit From Legal Insider Trading.

NEW YORK ( TheStreet) -- It is a victory for common sense. Tracking the trading behavior of company executives, directors and large shareholders in the stocks of firms they're registered in as "insiders" has proven to be profitable, according to both academic studies and (more importantly) the experience of professional investors.

Below are lists of the top 10 mainly open-market insider purchases and sales filed at the Securities and Exchange Commission Monday, Sept. 24, 2012 as ranked by dollar value. Please note, however, that these are only factual lists, not buy and sell recommendations. Dollar value is only one metric to assess the importance of an insider transaction, and, frankly, often not even the most important metric that determines if an insider transaction is significant.

At, we find new investment ideas just about every day using these and more intricate insider screens to determine where we should focus our subsequent fundamental and technical analysis. And while stocks don't (or shouldn't) move up or down based on insider activity alone, insiders tend to be good indicators of when real stock-moving events like earnings surprises, corporate actions, and new products may be in the offing.

So use these regular Top Insider Trades columns as the initial research tools they are meant to be, and click the links in the tables to analyze a company's or insider's full insider history. Also feel free to contact us with any questions on our proprietary insider data, and how it is best analyzed.

Janus Capital (JNS) Dai Ichi Life BO 1,145,147 10,631,667
Prime Global (PGCG) Wong W K CEO,DIR,BO 2,260,000 5,424,000
Mercer (MERC) Kellogg Peter R BO 322,000 2,016,400
Opko Health (OPK) Frost Phillip MD CEO,CB,BO 150,000 631,013
Ziprealty (ZIPR) Osmium Partners BO 72,020 207,703
Acme United (ACU) North Star Inv Mgt BO 11,511 126,646
C&S Ltd Duration (LDP) Cohen Martin CB,DIR 5,100 126,007
Hudson Global (HSON) Sagard Capital BO 25,000 112,500
Home Depot (HD) Sargent Ronald DIR 1,667 99,086
Repligen (RGEN) Cooper Glenn L Md DIR 10,000 60,874
Source: Insider Insights
Alnylam Pharm (ALNY) Novartis Ag BO 1,551,896 30,137,820
Parkervision (PRKR) Del Mar Asset Mgt BO 2,000,000 4,600,000
Alliance Data (ADS) Minicucci Robert A DIR 30,000 4,278,222
Douglas Emmett (DEI) Emmett Dan A CB,DIR,BO 140,000 3,292,800
Kellogg (K) Kellogg Foundation BO 52,200 2,686,191
Bankunited (BKU) Bohlsen John DIR 88,636 2,233,042
Lowes (LOW) Keener Gaither LO,CCO,SEC 62,453 1,843,327
Portfolio (PRAA) Fredrickson Steven D PR,CEO,CB 12,500 1,261,862
Linkedin (LNKD) Gamson Michael VP 10,000 1,221,128
Everest Re (RE) Taranto Joseph V CB,CEO,DIR 9,977 1,088,663
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.