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 March 18 through March 22 include:

• Chairman of Armour Residential (ARR) Daniel Staton purchased 12,863 shares of company stock at $19.51 per share for a total transaction value of $250,957
  
• Director of Tivity Health (TVTY) Benjamin Kirshner purchased 14,569 shares of company stock at $17.26 for a total transaction value of $251,461
  
• Chairman of Revlon (REV) Ronald Perelman purchased 355,000 shares of company stock at $19.90 per share for a total transaction value of $7,065,956
  
• Director of Kingsway Financial Services (KFS) Douglas Levine purchased 171,806 shares of company stock at $2.24 per share for a total transaction value of $384,330
  
• Director of Fidelity National Information Services (FIS) Alexander Navab purchased 5,075 shares of company stock at $107.22 per share for a total transaction value of $544,142
  
• Director of Health Insurance Innovations (HIIQ) John Fichthorn purchased 93,742 shares of company stock at $29.28 per share for a total transaction value of $2,745,178
  
• Chairman of Plug Power(PLUG) George McNamee purchased 100,000 shares of company stock at $2.34 per share for a total transaction value of $233,840
  
• CEO of Willscot (WSC) Bradley Soultz purchased 35,000 shares of company stock at $11.20 per share for a total transaction value of $391,850
  
• Director of Kennedy-Wilson Holdings (KW) Trevor Bowen purchased 13,500 shares of company stock at $20.93 per share for a total transaction value of $282,555
  

NOTABLE INSIDER SALES: Significant insider sales reported in the prior week from March 18 through March 22 include:

• Director and Beneficial Owner of Walmart (WMT) Robson Walton sold 1,649,023 shares of company stock at an average price of $98.88 per share for a total transaction value of $163,060,506
  
• Director of Ulta Beauty (ULTA) Charles Heilbronn sold 242,432 shares of company stock at $334.99 per share for a total transaction value of $81,213,484
  
• Director of O'Reilly Automotive (ORLY) Lawrence O'Reilly sold 5,600 shares of company stock at $375.48 per share for a total transaction value of $2,102,688
  
• VP of Abbott (ABT) Joseph Manning sold 5,613 shares of company stock at $79.58 per share for a total transaction value of $446,665
  
• VP of Applied Materials (AMAT) Omkaram Nalamasu sold 143,255 shares of company stock at $40.73 per share for a total transaction value of $5,834,776
  
• Chairman of Medical Properties Trust (MPW) Edward Aldag sold 273,577 shares of company stock at $18.72 per share for a total transaction value of $5,121,361
  
• CFO of Ross Stores (ROST) Michael Hartshorn sold 9,924 shares of company stock at $91.48 per share for a total transaction value of $907,852
  
• Officer of Pool Corp (POOL) Arthur Cook sold 10,550 shares of company stock at $159.38 per share for a total transaction value of $1,681,493
  
• Director of Sinclair Broadcast Group (SBGI) Robert Smith sold 143,002 shares of company stock at $38.58 for a total transaction value of $5,517,103
  
• Chairman of LGI Homes (LGIH) Eric Lipar sold 40,478 shares of company stock at $56.76 for a total transaction value of $2,297,697
  
• CEO of Brady Corp (BRC) Michael Nauman sold 18,671 shares of company stock at $47.16 for a total transaction value of $880,504

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTION: Shares of Revlon are up approximately 20% since chairman Ronald Perelman purchased shares, while shares of Applied Materials are lower by approximately 7% after VP  Omkaram Nalamasu sold shares.