Ardsley Advisory Partners Buys Baidu Inc, Marathon Petroleum Corp, Alibaba Group Holding, Sells ProShares UltraShort Lehman 20 Year Treasury, Atlantica Yield PLC, Celgene Corp

• New Purchases: BIDU, MPC, BABA, PENN, C, GTT, URI, AVYA, TTOO, CAT,
• Added Positions: GLNG, COOL, MU, MRK, MGM, AMD, HASI, JAZZ, ANTM, PANW,
• Reduced Positions: AY, CELG, XBI, RUN, CNC, PAH, BG, VSLR, TXMD, ALXN,
• Sold Out: TBT, ASH, MITL, OKTA, ARCC, FB, HDP, EEFT, CLVS, NCLH,

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

1. Golar LNG Ltd (GLNG) - 880,000 shares, 4.24% of the total portfolio. Shares added by 69.23%
2. Sunrun Inc (RUN) - 1,940,000 shares, 4.17% of the total portfolio. Shares reduced by 30.3%
3. SunOpta Inc (STKL) - 2,976,801 shares, 4.09% of the total portfolio. Shares added by 12.26%
4. Anthem Inc (ANTM) - 92,500 shares, 3.6% of the total portfolio. Shares added by 17.83%
5. Jazz Pharmaceuticals PLC (JAZZ) - 126,000 shares, 3.55% of the total portfolio. Shares added by 18.87%

Ardsley Advisory Partners initiated holding in Baidu Inc. The purchase prices were between $219.82 and $284.07, with an estimated average price of $249.09. The stock is now traded at around $213.47. The impact to a portfolio due to this purchase was 3.38%. The holding were 85,000 shares as of 2018-06-30.

Ardsley Advisory Partners initiated holding in Marathon Petroleum Corp. The purchase prices were between $69.2 and $82.93, with an estimated average price of $76.33. The stock is now traded at around $77.18. The impact to a portfolio due to this purchase was 2.29%. The holding were 200,000 shares as of 2018-06-30.

Ardsley Advisory Partners initiated holding in Alibaba Group Holding Ltd. The purchase prices were between $167.52 and $210.86, with an estimated average price of $190.49. The stock is now traded at around $169.83. The impact to a portfolio due to this purchase was 2.28%. The holding were 75,000 shares as of 2018-06-30.

Ardsley Advisory Partners initiated holding in Penn National Gaming Inc. The purchase prices were between $25.13 and $35.45, with an estimated average price of $31.19. The stock is now traded at around $31.05. The impact to a portfolio due to this purchase was 1.65%. The holding were 300,000 shares as of 2018-06-30.

Ardsley Advisory Partners initiated holding in Citigroup Inc. The purchase prices were between $65.46 and $72.86, with an estimated average price of $68.88. The stock is now traded at around $68.65. The impact to a portfolio due to this purchase was 1.37%. The holding were 125,000 shares as of 2018-06-30.

Ardsley Advisory Partners initiated holding in GTT Communications Inc. The purchase prices were between $45 and $56.6, with an estimated average price of $49.8. The stock is now traded at around $36.80. The impact to a portfolio due to this purchase was 1.1%. The holding were 150,000 shares as of 2018-06-30.

Ardsley Advisory Partners added to a holding in Golar LNG Ltd by 69.23%. The purchase prices were between $26.07 and $34.74, with an estimated average price of $30.44. The stock is now traded at around $23.69. The impact to a portfolio due to this purchase was 1.73%. The holding were 880,000 shares as of 2018-06-30.

Ardsley Advisory Partners added to a holding in PolarityTE Inc by 1968.06%. The purchase prices were between $16.35 and $38.97, with an estimated average price of $23.75. The stock is now traded at around $25.85. The impact to a portfolio due to this purchase was 1.45%. The holding were 395,000 shares as of 2018-06-30.

Ardsley Advisory Partners added to a holding in Micron Technology Inc by 177.65%. The purchase prices were between $45.89 and $62.62, with an estimated average price of $54.03. The stock is now traded at around $47.49. The impact to a portfolio due to this purchase was 1.29%. The holding were 236,000 shares as of 2018-06-30.

Ardsley Advisory Partners added to a holding in Merck & Co Inc by 2233.33%. The purchase prices were between $53.27 and $62.59, with an estimated average price of $59.12. The stock is now traded at around $67.37. The impact to a portfolio due to this purchase was 1%. The holding were 105,000 shares as of 2018-06-30.

Ardsley Advisory Partners added to a holding in MGM Resorts International by 2100.00%. The purchase prices were between $28.37 and $36.41, with an estimated average price of $32.31. The stock is now traded at around $28.37. The impact to a portfolio due to this purchase was 0.99%. The holding were 220,000 shares as of 2018-06-30.

Ardsley Advisory Partners added to a holding in Advanced Micro Devices Inc by 740.00%. The purchase prices were between $9.53 and $17.11, with an estimated average price of $12.7. The stock is now traded at around $19.70. The impact to a portfolio due to this purchase was 0.91%. The holding were 420,000 shares as of 2018-06-30.

Ardsley Advisory Partners sold out a holding in ProShares UltraShort Lehman 20 Year Treasury. The sale prices were between $35.71 and $39.63, with an estimated average price of $37.41.

Ardsley Advisory Partners sold out a holding in Ashland Global Holdings Inc. The sale prices were between $66.18 and $80.01, with an estimated average price of $74.42.

Ardsley Advisory Partners sold out a holding in Mitel Networks Corp. The sale prices were between $9.27 and $11.2, with an estimated average price of $10.7.

Ardsley Advisory Partners sold out a holding in Okta Inc. The sale prices were between $38.64 and $57.36, with an estimated average price of $47.45.

Ardsley Advisory Partners sold out a holding in Ares Capital Corp. The sale prices were between $15.9 and $17.09, with an estimated average price of $16.43.

Ardsley Advisory Partners sold out a holding in Facebook Inc. The sale prices were between $155.1 and $202, with an estimated average price of $180.53.

Ardsley Advisory Partners reduced to a holding in Atlantica Yield PLC by 55.46%. The sale prices were between $18.94 and $20.39, with an estimated average price of $19.89. The stock is now traded at around $20.75. The impact to a portfolio due to this sale was -3.53%. Ardsley Advisory Partners still held 851,196 shares as of 2018-06-30.

Ardsley Advisory Partners reduced to a holding in Celgene Corp by 97.55%. The sale prices were between $74.69 and $92.08, with an estimated average price of $83.1. The stock is now traded at around $89.27. The impact to a portfolio due to this sale was -3.33%. Ardsley Advisory Partners still held 5,500 shares as of 2018-06-30.

Ardsley Advisory Partners reduced to a holding in SPDR Series Trust S&P Biotech by 53.04%. The sale prices were between $82.9 and $101.15, with an estimated average price of $91.92. The stock is now traded at around $93.08. The impact to a portfolio due to this sale was -1.89%. Ardsley Advisory Partners still held 112,000 shares as of 2018-06-30.

Ardsley Advisory Partners reduced to a holding in Sunrun Inc by 30.3%. The sale prices were between $8.19 and $14.18, with an estimated average price of $10.85. The stock is now traded at around $13.26. The impact to a portfolio due to this sale was -1.28%. Ardsley Advisory Partners still held 1,940,000 shares as of 2018-06-30.

Ardsley Advisory Partners reduced to a holding in Centene Corp by 44.34%. The sale prices were between $105.93 and $125.75, with an estimated average price of $115.31. The stock is now traded at around $143.70. The impact to a portfolio due to this sale was -1.25%. Ardsley Advisory Partners still held 86,000 shares as of 2018-06-30.

Ardsley Advisory Partners reduced to a holding in Platform Specialty Products Corp by 75.14%. The sale prices were between $9.33 and $12.27, with an estimated average price of $10.88. The stock is now traded at around $12.02. The impact to a portfolio due to this sale was -1.07%. Ardsley Advisory Partners still held 215,000 shares as of 2018-06-30.