Welcome to "Fly Insider," The Fly's weekly recap of notable insider stock transactions.

NOTABLE INSIDER PURCHASES: Significant insider purchases reported in the prior week from October 14 through October 18 include:

• Director of Streamline Health Solutions (STRM) Kenan Lucas purchased 1,500,000 shares of company stock at $1.02 per share for a total transaction value of $1,530,000
  
• Officer of Assured Guaranty (AGO) Andrew Feldstein purchased 23,400 shares of company stock at $46.27 per share for a total transaction value of $1,082,601
  
• Beneficial owner of Taylor Devices (TAYD) Ira Sochet purchased 11,450 shares of company stock at $10.98 per share for a total transaction value of $125,721
  
• Beneficial owner of CIM Commercial Trust (CMCT) CIM Service Provider purchased 2,468,390 shares of company stock at $19.17 per share for a total transaction value of $47,315,334
  
• Beneficial owner of Athenex (ATNX) Perceptive Advisors purchased 67,222 shares of company stock at $10.29 per share for a total transaction value of $691,714

NOTABLE INSIDER SALES: Significant insider sales reported in the prior week from October 14 through October 18 include:

• Director of Okta (OKTA) Benjamin Horowitz sold 48,899 shares of company stock at $115.77 per share for a total transaction value of $5,661,027
  
• VP of Lam Research (LRCX) Seshasayee Varadarajan sold 20,000 shares of company stock at $240.00 per share for a total transaction value of $4,800,000
  
• Chairman of Fiserv (FISV) Jeffery Yabuki sold 25,000 shares of company stock at $106.33 per share for a total transaction value of $2,658,225
  
• Chairman of Proofpoint (PFPT) Gary Steele sold 20,000 shares of company stock at $130.74 per share for a total transaction value of $2,614,792
  
• VP of Arista Networks (ANET) Kenneth Duda sold 10,876 shares of company stock at $226.89 per share for a total transaction value of $2,467,686
  

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTIONS: Shares of Streamline Health Solutions are up over 10% after director Kenan Lucas purchased shares, while shares of Proofpoint are down approximately 10% after chairman Gary Steele sold shares.