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 19 through September 23 include:

•  President of NortonLifeLock (NLOK) Ondrej Vlcek purchased 456,475 shares of company stock at $21.91 per share for a total transaction amount of $9,999,998

• CFO of Adobe (ADBE) Daniel Durn purchased 3,250 shares of company stock at $288.11 per share for a total transaction amount of $936,358

• VP of Nautilus Biotechnology (NAUT) Sankar Subramanian purchased 75,000 shares of company stock at $2.18 per share for a total transaction amount of $163,200

• Director of Allakos (ALLK) Paul Walker purchased 3,984,000 shares of company stock at $5.02 per share for a total transaction amount of $19,999,680

NOTABLE INSIDER SALES: Significant insider sales in the prior week from September 19 through September 23 include:

• CEO of Live Nation (LYV) Michael Rapino sold 234,000 shares of company stock at $90.50 per share for a total transaction amount of $21,177,468

•  CFO of CrowdStrike (CRWD) Burt Podbere sold 11,590 shares of company stock at $ $173.00 per share for a total transaction amount of $2,005,126

• Beneficial Owner of AutoNation (AN) Edward Lampert sold 69,496 shares of company stock at $105.88 per share for a total transaction amount of $7,358,445

•  Director of Amyris (AMRS) Frank Kung sold 600,000 shares of company stock at $3.57 per share for a total transaction amount of $2,140,020.

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTION: Shares of Allakos advanced approximately 20% higher after Director Paul Walker purchased 3,984,000 shares of company stock at $5.02 per share, while Live Nation fell approximately 19% after CEO Michael Rapino sold 234,000 shares of company stock at $90.50 per share.