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 September 16 through September 20 include:

• Director of Kraft Heinz (KHC) Alexandre van Damme purchased 250,000 shares of company stock at $28.45 per share for a total transaction value of $7,112,500; Director Jorge Lemann purchased 3,496,503 shares of company stock at $28.60 per share for a total transaction value of $99,999,986

• Chairman of Scientific Games (SGMS) Ronald Perelman purchased 100,000 shares of company stock at $22.41 per share for a total transaction value of $2,241,000

• Chairman of Lexicon Pharmaceuticals (LXRX) Raymond Debbane purchased 103,042 shares of company stock at $2.69 per share for a total transaction value of $277,585

• CEO of Church & Dwight (CHD) Matthew Farrell purchased 7,000 shares of company stock at $71.32 per share for a total transaction value of $499,268

• Director of Cadence BanCorporation (CADE) Richard Fredericks purchased 17,940 shares of company stock at $17.96 per share for a total transaction value of $322,202

• Director of Flotek (FTK) David Nierenberg purchased 113,500 shares of company stock at $2.51 per share for a total transaction value of $284,420.

NOTABLE INSIDER SALES: Significant insider sales reported in the prior week from September 16 through September 20 include:

• Director of Erie Indemnity (ERIE) Ralph Borneman sold 20,000 shares of company stock at an average price of $210 per share for a total transaction value of $4,200,066

• COO of Hess (HES) Gregory Hill sold 17,750 shares of company stock at an average price of $70.94 per share for a total transaction value of $1,259,185

• President of RH (RH) David Stanchak sold 6,000 shares of company stock at an average price of $172.01 per share for a total transaction value of $1,032,053

• COO of Cerner (CERN) Michael Nill sold 13,124 shares of company stock at an average price of $68.07 per share for a total transaction value of $893,351

• Director of Brady Corp (BRC) Bradley Richardson sold 5,170 shares of company stock at an average price of $54.11 per share for a total transaction value of $279,749

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTIONS: Shares of Lexicon Pharmaceuticals are up 30% after Chairman Raymond Debbane purchased 103,042 shares while shares of Hes are down 7% after COO Gregory Hill sold 17,750 shares