PRIMECAP Management Buys United Continental Holdings Inc, Bristol-Myers Squibb Company, Qualcomm Inc, Sells Bioverativ Inc, AT&T Inc, Merck Inc

• New Purchases: SHL, MCO, BAH, FB, ICFI, SPR, BURL,
• Added Positions: BMY, UAL, QCOM, SIE, BMRN, INTC, WHR, AZN, AAL, BAC,
• Reduced Positions: NVDA, TXN, ADBE, T, MSFT, ROG, SCHW, MRK, AMGN, NKTR,
• Sold Out: BIVV, CUDA, CSTM, ESL, AZO, CCK, CVA,

For the details of PRIMECAP Management's stock buys and sells, go to http://www.gurufocus.com/StockBuy.php?GuruName=PRIMECAP+Management

1. Adobe Systems Inc (ADBE) - 21,702,128 shares, 3.52% of the total portfolio. Shares reduced by 7.53%
2. Eli Lilly and Co (LLY) - 54,546,783 shares, 3.17% of the total portfolio. Shares reduced by 1.1%
3. Biogen Inc (BIIB) - 14,953,231 shares, 3.07% of the total portfolio. Shares reduced by 1.03%
4. Southwest Airlines Co (LUV) - 69,883,831 shares, 3% of the total portfolio. Shares reduced by 0.85%
5. Microsoft Corp (MSFT) - 41,934,453 shares, 2.87% of the total portfolio. Shares reduced by 6.47%

PRIMECAP Management initiated holding in Siemens Healthineers AG. The purchase prices were between $31.1 and $33.35, with an estimated average price of $32.4. The stock is now traded at around $33.81. The impact to a portfolio due to this purchase was 0.22%. The holding were 7,000,000 shares as of 2018-03-31.

PRIMECAP Management initiated holding in Moody's Corporation. The purchase prices were between $146.13 and $170.2, with an estimated average price of $161.89. The stock is now traded at around $171.68. The impact to a portfolio due to this purchase was 0.02%. The holding were 181,000 shares as of 2018-03-31.

PRIMECAP Management initiated holding in ICF International Inc. The purchase prices were between $50.9 and $61.4, with an estimated average price of $56.39. The stock is now traded at around $66.65. The impact to a portfolio due to this purchase was 0.01%. The holding were 114,419 shares as of 2018-03-31.

PRIMECAP Management initiated holding in Facebook Inc. The purchase prices were between $152.22 and $193.09, with an estimated average price of $179.55. The stock is now traded at around $182.57. The impact to a portfolio due to this purchase was 0.01%. The holding were 113,700 shares as of 2018-03-31.

PRIMECAP Management initiated holding in Spirit AeroSystems Holdings Inc. The purchase prices were between $82.57 and $102.93, with an estimated average price of $91.41. The stock is now traded at around $85.15. The impact to a portfolio due to this purchase was 0.01%. The holding were 164,200 shares as of 2018-03-31.

PRIMECAP Management initiated holding in Booz Allen Hamilton Holding Corp. The purchase prices were between $35.93 and $40.02, with an estimated average price of $38.66. The stock is now traded at around $41.12. The impact to a portfolio due to this purchase was 0.01%. The holding were 347,773 shares as of 2018-03-31.

PRIMECAP Management added to a holding in United Continental Holdings Inc by 32.90%. The purchase prices were between $62.98 and $78.4, with an estimated average price of $69.09. The stock is now traded at around $69.61. The impact to a portfolio due to this purchase was 0.47%. The holding were 36,260,399 shares as of 2018-03-31.

PRIMECAP Management added to a holding in Bristol-Myers Squibb Company by 150.56%. The purchase prices were between $59.92 and $68.98, with an estimated average price of $64.33. The stock is now traded at around $53.15. The impact to a portfolio due to this purchase was 0.47%. The holding were 16,430,950 shares as of 2018-03-31.

PRIMECAP Management added to a holding in Qualcomm Inc by 41.10%. The purchase prices were between $53.66 and $68.67, with an estimated average price of $63.72. The stock is now traded at around $56.56. The impact to a portfolio due to this purchase was 0.26%. The holding were 21,609,105 shares as of 2018-03-31.

PRIMECAP Management added to a holding in Biomarin Pharmaceutical Inc by 34.37%. The purchase prices were between $77.67 and $92.63, with an estimated average price of $85.82. The stock is now traded at around $87.70. The impact to a portfolio due to this purchase was 0.21%. The holding were 13,766,539 shares as of 2018-03-31.

PRIMECAP Management added to a holding in Siemens AG by 42.61%. The purchase prices were between $100.38 and $125.14, with an estimated average price of $112.33. The stock is now traded at around $116.98. The impact to a portfolio due to this purchase was 0.21%. The holding were 7,260,000 shares as of 2018-03-31.

PRIMECAP Management added to a holding in Whirlpool Corp by 70.44%. The purchase prices were between $151.17 and $185.97, with an estimated average price of $167.03. The stock is now traded at around $161.07. The impact to a portfolio due to this purchase was 0.17%. The holding were 3,611,068 shares as of 2018-03-31.

PRIMECAP Management sold out a holding in Bioverativ Inc. The sale prices were between $54.95 and $104.98, with an estimated average price of $91.34.

PRIMECAP Management sold out a holding in Barracuda Networks Inc. The sale prices were between $27.42 and $27.58, with an estimated average price of $27.51.

PRIMECAP Management sold out a holding in Constellium NV. The sale prices were between $10.3 and $13.95, with an estimated average price of $12.2.

PRIMECAP Management sold out a holding in Esterline Technologies Corp. The sale prices were between $68.45 and $78.05, with an estimated average price of $74.46.

PRIMECAP Management sold out a holding in AutoZone Inc. The sale prices were between $634.52 and $796.95, with an estimated average price of $715.82.

PRIMECAP Management sold out a holding in Crown Holdings Inc. The sale prices were between $48.3 and $59.26, with an estimated average price of $53.38.