Insiders sell stock to diversify assets and is highly regulated and scrutinized. Insiders can only sell shares at certain times during the year, and when they do, they must acknowledge that they are not in possession of material, nonpublic information. Many insiders use planned selling programs as a means to ensure they do not violate insider-trading laws. Recently, various executives have taken part in insider selling activity for the stocks of Exelixis, Inc. (NASDAQ:EXEL), ACADIA Pharmaceuticals Inc. (NASDAQ:ACAD), Gevo, Inc. (NASDAQ:GEVO). Let’s take a closer look:

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Exelixis, Inc.

On November 9, Chief Scientific Officer Peter Lamb unloaded 70,000 Exelixis shares, valued at $920,500. The shares were sold via automatic sale program. Lamb now holds 73,600 of the company’s shares that are valued at $1,212,192.

In addition, Chief Medical Officer Gisela Schwab unloaded 22,000 shares, valued at $330,000. The shares were sold via automatic sale program. Schwab now holds 158,053 of the company’s shares that are valued at $2,603,132.

CEO Michael Morrissey also joins the party, selling 200,000 Exelixis shares, valued at $3,000,000. The shares were sold via automatic sale program. Morrissey now holds 60,000 of the company’s shares that are valued at $988,200.

ACADIA Pharmaceuticals

On November 10, Executive Vice President, General Counsel and Secretary Glenn Baity sold 10,200 ACADIA shares, valued at $306,612. The shares were sold via automatic sale program. Baity now holds 62,921 of the company’s shares that are valued at $1,763,046.

Gevo Inc

CFO Mike Willis yesterday sold 21 Gevo shares valued at $9 . The shares were sold via automatic sale program. Willis now holds 23,702 of the company’s shares that are valued at $8,462.

CEO Patrick Gruber yesterday disposed 108 Gevo Inc shares valued at $48 . The shares were sold via automatic sale program. Gruber now holds 45,748 of the company’s shares that are valued at $20,149.

President & COO Christopher Michael Ryan yesterday unloaded 121 Gevo shares valued at $53. The shares were sold via automatic sale program. Ryan now holds 41,449 of the company’s shares that are valued at $18,237. According to TipRanks.com, Christopher Michael Ryan has an average return of 48.4% and a 75% success rate. Ryan is ranked #2918 out of 35775 corporate insiders.

CCO Gregory Roda yesterday unloaded 16 Gevo shares valued at $7.00. The shares were sold via automatic sale program. Roda now holds 7,547 of the company’s shares that are valued at $2,694.