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 27 through March 31 include:

• Beneficial owner of Occidental Petroleum (OXY) Warren Buffett purchased 3,666,714 shares of company stock for $58.98 per share for a total transaction amount of $216,244,45
• CFO of SL Green Realty (SLG) Matthew Diliberto Matthew purchased 10,000 shares of company stock for $16.44 per share for a total transaction amount of $164,400
• CEO of Kohl's (KSS) Thomas Kingsbury purchased 92,500 shares of company stock for $21.82 per share for a total transaction amount of $2,018,350
• Chairman of Petco Health & Wellness (WOOF) Ron Coughlin purchased 61,040 shares of company stock for $8.27 per share for a total transaction amount of $504,801

NOTABLE INSIDER SALES: Significant insider sales in the prior week from March 27 through March 31 include:

• VP of DexCom (DXCM) Steven Pacelli sold 5,442 shares of company stock for $116.40 per share for a total transaction amount of $633,449
• CEO of 89Bio (ETNB) Rohan Palekar sold 15,000 shares of company stock for $16.00 per share for a total transaction amount of $240,000
• CEO of Etsy (ETSY) Josh Silverman sold 20,850 shares of company stock for $106.38 per share for a total transaction amount of $2,217,935
• VP of Intra-Cellular Therapies (ITCI) Mark Neumann sold 15,604 shares of company stock for $54.31 per share for a total transaction amount of $847,380.

NOTABLE PRICE MOVEMENT AFTER INSIDER TRANSACTION:

Shares of Kohls moved up 12% after CEO Thomas Kingsbury purchased 92,500 shares of company stock for $21.82 per share, while shares of89Bio are lower by 6.5% after 89Bio CEO Rohan Palekar sold 15,000 shares of company stock for $16.00 per share.