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 November 4 through November 8 include:

• Director of MGM Resorts (MGM) Keith Meister purchased 79,000 shares of company stock at an average price of $29.43 per share for a total transaction value of $2,324,867

• Chairman of Document Security Systems (DSS) Heng Fai Ambrose Chan purchased 6,000,000 shares of company stock at an average price of 30c per share for a total transaction value of $1,822,200

• Chairman of Conifer Holdings (CNFR) James Petcoff purchased 222,222 shares of company stock at an average price of $4.50 per share for a total transaction value of $999,999

• Director of Orthofix Medical (OFIX) Ronald Matricaria purchased 20,000 shares of company stock at an average price of $42.27 per share for a total transaction value of $845,304

• Chairman of Luminex (LMNX) Walter Loewenbaum purchased 81,657 shares of company stock at an average price of $18.00 per share for a total transaction value of $1,469,434

NOTABLE INSIDER SALES: Significant insider sales reported in the prior week from November 4 through November 8 include:

• Director of Uber Technologies (UBER) Travis Kalanick sold 20,264,846 shares of company stock at an average price of $26.99 per share for a total transaction value of $546,885,373

• CEO of Replimune Group (REPL) Robert Coffin sold 48,500 shares of company stock at an average price of $17.01 per share for a total transaction value of $824,985

• Director of Tempur Sealy International (TPX) Arik Ruchim sold 2,300,000 shares of company stock at an average price of $85.67 per share for a total transaction value of $197,047,210

• Director of IDEXX Laboratories (IDXX) Anne Szotak sold 3,283 shares of company stock at an average price of $279.37 per share for a total transaction value of $917,162

• Officer of Blackstone Group (BX) Hamilton James sold 553,700 shares of company stock at an average price of $51.77 per share for a total transaction value of $28,663,333

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTIONS: Shares of MGM Resorts are up approximately 8% since director Keith Meister purchased 79,000 shares of company stock, while shares of Idexx Laboratories are down approximately 9% since director Anne Szotak sold 3,283 shares of company stock.