Lyon Street Capital, LLC Buys Strongbridge Biopharma PLC, Recro Pharma Inc, Stemline Therapeutics Inc, Sells Natus Medical Inc, GTT Communications Inc, Concert Pharmaceuticals Inc

• New Purchases: FOR, QTNA, IONS, ACXM, TWLO, CALX,
• Added Positions: SBBP, REPH, STML, SVRA, NEOS, HDP, BOX, SREV, MTEM, CARB,
• Reduced Positions: BABY, GTT, CNCE, HIIQ, IMMU, HLF, TYL, FIVN, UPLD, LOPE,
• Sold Out: CALD, TSEM, IVTY, QUOT, ADS, MRVL, MCRI, IMMR, TNAV,

For the details of Lyon Street Capital, LLC's stock buys and sells, go to http://www.gurufocus.com/StockBuy.php?GuruName=Lyon+Street+Capital%2C+LLC

1. Health Insurance Innovations Inc (HIIQ) - 1,301,920 shares, 12.12% of the total portfolio. Shares reduced by 10.43%
2. Strongbridge Biopharma PLC (SBBP) - 3,182,149 shares, 9.07% of the total portfolio. Shares added by 126.31%
3. Stemline Therapeutics Inc (STML) - 1,241,293 shares, 6.12% of the total portfolio. Shares added by 49.72%
4. Savara Inc (SVRA) - 1,441,984 shares, 4.27% of the total portfolio. Shares added by 84.98%
5. Model N Inc (MODN) - 680,452 shares, 3.96% of the total portfolio. Shares added by 2.13%

Lyon Street Capital, LLC initiated holding in Forestar Group Inc. The purchase prices were between $20.95 and $26.35, with an estimated average price of $23.24. The stock is now traded at around $21.95. The impact to a portfolio due to this purchase was 1.49%. The holding were 218,683 shares as of 2018-03-31.

Lyon Street Capital, LLC initiated holding in Quantenna Communications Inc. The purchase prices were between $12.17 and $15.62, with an estimated average price of $13.86. The stock is now traded at around $14.73. The impact to a portfolio due to this purchase was 1.39%. The holding were 314,440 shares as of 2018-03-31.

Lyon Street Capital, LLC initiated holding in Ionis Pharmaceuticals Inc. The purchase prices were between $44.08 and $55.05, with an estimated average price of $50.8. The stock is now traded at around $44.39. The impact to a portfolio due to this purchase was 0.99%. The holding were 69,554 shares as of 2018-03-31.

Lyon Street Capital, LLC initiated holding in Acxiom Corp. The purchase prices were between $22.71 and $32.34, with an estimated average price of $28.58. The stock is now traded at around $27.38. The impact to a portfolio due to this purchase was 0.66%. The holding were 89,758 shares as of 2018-03-31.

Lyon Street Capital, LLC initiated holding in Twilio Inc. The purchase prices were between $23.91 and $42.06, with an estimated average price of $31.67. The stock is now traded at around $53.13. The impact to a portfolio due to this purchase was 0.37%. The holding were 30,500 shares as of 2018-03-31.

Lyon Street Capital, LLC initiated holding in Calix Inc. The purchase prices were between $5.65 and $7.25, with an estimated average price of $6.46. The stock is now traded at around $6.25. The impact to a portfolio due to this purchase was 0.33%. The holding were 150,000 shares as of 2018-03-31.

Lyon Street Capital, LLC added to a holding in Strongbridge Biopharma PLC by 126.31%. The purchase prices were between $6.55 and $8.85, with an estimated average price of $7.49. The stock is now traded at around $7.75. The impact to a portfolio due to this purchase was 5.06%. The holding were 3,182,149 shares as of 2018-03-31.

Lyon Street Capital, LLC added to a holding in Recro Pharma Inc by 182.61%. The purchase prices were between $7.84 and $11.86, with an estimated average price of $9.35. The stock is now traded at around $10.75. The impact to a portfolio due to this purchase was 2.35%. The holding were 1,027,271 shares as of 2018-03-31.

Lyon Street Capital, LLC added to a holding in Stemline Therapeutics Inc by 49.72%. The purchase prices were between $13.4 and $18.5, with an estimated average price of $15.59. The stock is now traded at around $19.20. The impact to a portfolio due to this purchase was 2.03%. The holding were 1,241,293 shares as of 2018-03-31.

Lyon Street Capital, LLC added to a holding in Savara Inc by 84.98%. The purchase prices were between $8.99 and $14.95, with an estimated average price of $11.77. The stock is now traded at around $9.50. The impact to a portfolio due to this purchase was 1.96%. The holding were 1,441,984 shares as of 2018-03-31.

Lyon Street Capital, LLC added to a holding in Neos Therapeutics Inc by 85.76%. The purchase prices were between $8.05 and $11.4, with an estimated average price of $9.57. The stock is now traded at around $7.40. The impact to a portfolio due to this purchase was 1.8%. The holding were 1,455,614 shares as of 2018-03-31.

Lyon Street Capital, LLC added to a holding in Hortonworks Inc by 52.24%. The purchase prices were between $17.15 and $21.34, with an estimated average price of $19.69. The stock is now traded at around $17.24. The impact to a portfolio due to this purchase was 0.98%. The holding were 434,462 shares as of 2018-03-31.

Lyon Street Capital, LLC sold out a holding in Callidus Software Inc. The sale prices were between $28.5 and $35.98, with an estimated average price of $34.17.

Lyon Street Capital, LLC sold out a holding in Tower Semiconductor Ltd. The sale prices were between $26.62 and $35.95, with an estimated average price of $31.83.

Lyon Street Capital, LLC sold out a holding in Invuity Inc. The sale prices were between $3.35 and $6.1, with an estimated average price of $4.57.

Lyon Street Capital, LLC sold out a holding in Quotient Technology Inc. The sale prices were between $10.5 and $14.8, with an estimated average price of $12.66.

Lyon Street Capital, LLC sold out a holding in Alliance Data Systems Corp. The sale prices were between $212.86 and $276.37, with an estimated average price of $244.84.

Lyon Street Capital, LLC sold out a holding in Marvell Technology Group Ltd. The sale prices were between $20.52 and $24.37, with an estimated average price of $22.89.