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 13 through March 17 include:

Director of Matador Resources (MTDR) Timothy Parker purchased 4,500 shares of company stock at $43.52 per share on March 16, for a total transaction amount of $195,840

Chairman of B Riley Financial (RILY) Bryant Riley purchased 12,963 shares of common stock at $29.87 per share for a total transaction amount of $387,223

Beneficial Owner of Southwest Gas Holdings (SWX) Carl Icahn purchased 539,022 shares of common stock at $59.39 per share for a total transaction amount of $32,015,050

Director of Schwab (SCHW) Stephen Ellis purchase 34,387 shares of company stock at $58.26 per share for a total transaction amount of $2,003,325

NOTABLE INSIDER SALES: Significant insider sales in the prior week from March 13 through March 17 include:

VP of American Airlines Group (AAL) Vasu Raja sold 9,954 shares of company stock at $15.07 per share for a total transaction amount of $150,007

Director of Agios Pharmaceuticals (AGIO) David Schenkein sold 20,000 shares of company stock at $22.49 per share for a total transaction amount of $449,816

VP of Brinks (BCO) Michael Beech sold 45,000 shares of company stock at $66.10 per share for a total transaction amount of $2,974,604

Director of Pathward Financial (CASH) Frederick Moore sold 3,350 shares of company stock at $46.61 per share for a total transaction amount of $156,144

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTION: Shares of Southwest Gas Holdings moved up approximately 5% after beneficial owner Carl Icahn purchased 539,022 shares of common stock at $59.39 per share, while shares of Pathward Financial are down over 9% after director Frederick Moore sold 3,350 shares of company stock at $46.61 per share.