Viking Global Investors LP Buys Adaptive Biotechnologies Corp, Boeing Co, Facebook Inc, Sells Alibaba Group Holding, Marathon Petroleum Corp, Visa Inc

• New Purchases: ADPT, BA, BBIO, UBER, MNST, CRM, AVTR, SQ, WORK, LOW, COUP, AOS, GRUB, RTN, ATH, CHWY, GDI, AIZ, AIG,
• Added Positions: FB, AMZN, JD, CNC, UNH, BSX, EQH, MU, MELI, ATVI, ILMN, AON, CTLT, NFLX, CCK, DVA,
• Reduced Positions: BABA, V, BERY, ANTM, WCG, MSFT, BMRN, ADBE, NVDA, NXPI, ALGN, MRNA, GOOGL, EXAS, UTX, GOOG, EIDX, SYNH, CVET, FWONK, BPMC, ANAB,
• Sold Out: MPC, TMO, DIS, ALL, FANG, BKNG, MYL, HES, JAZZ, MIDD, PGR, ZEN, ZBH, LYB, BURL, AJG, NVRO,

For the details of Andreas Halvorsen's stock buys and sells, go to https://www.gurufocus.com/guru/andreas+halvorsen/current-portfolio/portfolio

1. Adaptive Biotechnologies Corp (ADPT) - 38,406,607 shares, 8.32% of the total portfolio. New Position
2. Amazon.com Inc (AMZN) - 802,837 shares, 6.82% of the total portfolio. Shares added by 157.55%
3. Anthem Inc (ANTM) - 5,198,006 shares, 6.58% of the total portfolio. Shares reduced by 16.09%
4. Facebook Inc (FB) - 7,063,705 shares, 6.12% of the total portfolio. Shares added by 231.74%
5. UnitedHealth Group Inc (UNH) - 4,812,185 shares, 5.27% of the total portfolio. Shares added by 28.63%

Viking Global Investors LP initiated holding in Adaptive Biotechnologies Corp. The purchase prices were between $40.3 and $48.3, with an estimated average price of $44.3. The stock is now traded at around $47.81. The impact to a portfolio due to this purchase was 8.32%. The holding were 38,406,607 shares as of .

Viking Global Investors LP initiated holding in Boeing Co. The purchase prices were between $337.37 and $395.86, with an estimated average price of $364.73. The stock is now traded at around $328.00. The impact to a portfolio due to this purchase was 4.54%. The holding were 2,777,120 shares as of .

Viking Global Investors LP initiated holding in BridgeBio Pharma Inc. The purchase prices were between $26.97 and $27.55, with an estimated average price of $27.26. The stock is now traded at around $26.76. The impact to a portfolio due to this purchase was 3.22%. The holding were 26,620,991 shares as of .

Viking Global Investors LP initiated holding in Uber Technologies Inc. The purchase prices were between $37.1 and $46.38, with an estimated average price of $42.42. The stock is now traded at around $33.22. The impact to a portfolio due to this purchase was 2.78%. The holding were 13,368,682 shares as of .

Viking Global Investors LP initiated holding in Monster Beverage Corp. The purchase prices were between $52.59 and $65.92, with an estimated average price of $60.23. The stock is now traded at around $56.95. The impact to a portfolio due to this purchase was 2.54%. The holding were 8,851,947 shares as of .

Viking Global Investors LP initiated holding in Salesforce.com Inc. The purchase prices were between $145.1 and $165.96, with an estimated average price of $156.67. The stock is now traded at around $142.13. The impact to a portfolio due to this purchase was 1.99%. The holding were 2,922,394 shares as of .

Viking Global Investors LP added to a holding in Facebook Inc by 231.74%. The purchase prices were between $164.15 and $195.47, with an estimated average price of $182.62. The stock is now traded at around $182.59. The impact to a portfolio due to this purchase was 4.28%. The holding were 7,063,705 shares as of .

Viking Global Investors LP added to a holding in Amazon.com Inc by 157.55%. The purchase prices were between $1692.69 and $1962.46, with an estimated average price of $1862.37. The stock is now traded at around $1776.12. The impact to a portfolio due to this purchase was 4.17%. The holding were 802,837 shares as of .

Viking Global Investors LP added to a holding in JD.com Inc by 175.45%. The purchase prices were between $25.76 and $31.26, with an estimated average price of $28.75. The stock is now traded at around $30.16. The impact to a portfolio due to this purchase was 2.76%. The holding were 31,821,898 shares as of .

Viking Global Investors LP added to a holding in Centene Corp by 233.30%. The purchase prices were between $47.01 and $57.88, with an estimated average price of $53.96. The stock is now traded at around $47.56. The impact to a portfolio due to this purchase was 2.3%. The holding were 13,994,550 shares as of .

Viking Global Investors LP added to a holding in UnitedHealth Group Inc by 28.63%. The purchase prices were between $216.84 and $252.28, with an estimated average price of $240.34. The stock is now traded at around $244.25. The impact to a portfolio due to this purchase was 1.17%. The holding were 4,812,185 shares as of .

Viking Global Investors LP added to a holding in Boston Scientific Corp by 185.53%. The purchase prices were between $34.91 and $42.98, with an estimated average price of $38.41. The stock is now traded at around $41.87. The impact to a portfolio due to this purchase was 1.15%. The holding were 9,195,192 shares as of .

Viking Global Investors LP sold out a holding in Marathon Petroleum Corp. The sale prices were between $45.99 and $63.6, with an estimated average price of $54.73.

Viking Global Investors LP sold out a holding in Thermo Fisher Scientific Inc. The sale prices were between $257.51 and $295.55, with an estimated average price of $275.13.

Viking Global Investors LP sold out a holding in The Walt Disney Co. The sale prices were between $111.96 and $142.02, with an estimated average price of $132.62.

Viking Global Investors LP sold out a holding in Allstate Corp. The sale prices were between $94.08 and $103.55, with an estimated average price of $97.67.

Viking Global Investors LP sold out a holding in Diamondback Energy Inc. The sale prices were between $96.12 and $113.8, with an estimated average price of $104.45.

Viking Global Investors LP sold out a holding in Booking Holdings Inc. The sale prices were between $1650.46 and $1887.73, with an estimated average price of $1795.29.

Viking Global Investors LP reduced to a holding in Alibaba Group Holding Ltd by 89.76%. The sale prices were between $149.26 and $195.21, with an estimated average price of $172.54. The stock is now traded at around $166.97. The impact to a portfolio due to this sale was -5.39%. Viking Global Investors LP still held 587,268 shares as of .

Viking Global Investors LP reduced to a holding in Visa Inc by 87.4%. The sale prices were between $157.26 and $173.85, with an estimated average price of $163.66. The stock is now traded at around $176.27. The impact to a portfolio due to this sale was -2.4%. Viking Global Investors LP still held 387,368 shares as of .