Recently, various executives have taken part in insider selling activity for the stocks of LinkedIn Corp (NYSE:LNKD), Yelp Inc (NYSE:YELP), Insmed Incorporated (NASDAQ:INSM), and salesforce.com, inc. (NYSE:CRM).

LinkedIn Corp

Director Stanley Meresman yesterday unloaded 1,562 LinkedIn Corp shares (50.26% of total stake), valued at $311,355 . The shares were sold via automatic sale program. Meresman now holds 1546 of the company’s shares that are valued at $308,489.

Yelp Inc

Chief Operating Officer Geoffrey Donaker divested entire direct stake in Yelp Inc., which amounted to 6,000 common shares. The insider sold the shares for $300,000 in a single transaction dated May 8.

Insmed Incorporated

Vice President of Quality Mark Quigley yesterday sold 18,750 Insmed shares (100% of total stake), valued at $413,813.

salesforce.com, inc.

Co-Founder Parker Harris yesterday unloaded 5,000 Salesforce.com shares valued at $357,571. The shares were sold via automatic sale program. Harris now holds 2,067,351 of the company’s shares that are valued at $148,415,128.

According to TipRanks.com, which measures corporate insiders’ success based on their transactions, Parker Harris has an average return of -42.8% and a 0% success rate. Harris is ranked #29346 out of 35697 corporate insiders.