Rock Springs Capital Management LP Buys Baxter International Inc, Warby Parker Inc, Ultragenyx Pharmaceutical Inc, Sells BeiGene, Ardelyx Inc, Biogen Inc

• New Purchases: BAX, WRBY, IMRX, ABOS, AADI, ICVX, AMYT, LPTX, VINC, FULC, IMRA, APLS,
• Added Positions: RARE, ASND, CERE, HUM, NVRO, ACCD, NVTA, HZNP, ALGN, PODD, SRRA, ZLAB, KYMR, MRTX, EVH, BPMC, LUNG, MGNX, HCAT, CVET, NBIX, ADAP, LFST, OSH, EPZM, FRPT, FATE, SRPT, MRSN, ALNY, AGL, IMCR, OLK, ABCM, AKRO, MREO, ACRS, RXDX, RXDX, BOLT, BOLT, WST, ACHC, RLAY, CGEN, PHR, KRTX, DXCM, INZY, NKTX, XENE, RPHM, GMDA,
• Reduced Positions: EAR, PRTA, BHG, INNV, ARVN, DVAX, GRPH, AUPH, ATHA, PCRX, AVIR, COLL, SPRO, PRLD, NUVB,
• Sold Out: BGNE, ARDX, BIIB, BSX, PPD, ADPT, ACAD, TBIO, CHMA, GLPG, FGEN, CNST, TARA, ARPO,

For the details of Rock Springs Capital Management LP's stock buys and sells, go to https://www.gurufocus.com/guru/rock+springs+capital+management+lp/current-portfolio/portfolio

1. Agilon Health Inc (AGL) - 7,075,000 shares, 3.94% of the total portfolio. Shares added by 1.09%
2. Align Technology Inc (ALGN) - 200,000 shares, 2.83% of the total portfolio. Shares added by 6.52%
3. Humana Inc (HUM) - 342,000 shares, 2.83% of the total portfolio. Shares added by 13.06%
4. Insulet Corp (PODD) - 437,566 shares, 2.64% of the total portfolio. Shares added by 7.05%
5. Intuitive Surgical Inc (ISRG) - 360,000 shares, 2.54% of the total portfolio.

Rock Springs Capital Management LP initiated holding in Baxter International Inc. The purchase prices were between $73.77 and $83.61, with an estimated average price of $79.12. The stock is now traded at around $79.650000. The impact to a portfolio due to this purchase was 0.77%. The holding were 450,000 shares as of 2021-09-30.

Rock Springs Capital Management LP initiated holding in Warby Parker Inc. The purchase prices were between $53.05 and $54.49, with an estimated average price of $53.77. The stock is now traded at around $58.535000. The impact to a portfolio due to this purchase was 0.73%. The holding were 650,000 shares as of 2021-09-30.

Rock Springs Capital Management LP initiated holding in Immuneering Corp. The purchase prices were between $17 and $32.84, with an estimated average price of $26.9. The stock is now traded at around $27.290000. The impact to a portfolio due to this purchase was 0.62%. The holding were 1,089,816 shares as of 2021-09-30.

Rock Springs Capital Management LP initiated holding in Acumen Pharmaceuticals Inc. The purchase prices were between $14.5 and $20.28, with an estimated average price of $16.68. The stock is now traded at around $10.735000. The impact to a portfolio due to this purchase was 0.5%. The holding were 1,579,191 shares as of 2021-09-30.

Rock Springs Capital Management LP initiated holding in Aadi Bioscience Inc. The purchase prices were between $0 and $32.66, with an estimated average price of $27.53. The stock is now traded at around $25.450000. The impact to a portfolio due to this purchase was 0.48%. The holding were 764,701 shares as of 2021-09-30.

Rock Springs Capital Management LP initiated holding in Icosavax Inc. The purchase prices were between $24.85 and $40.25, with an estimated average price of $34.02. The stock is now traded at around $26.790000. The impact to a portfolio due to this purchase was 0.46%. The holding were 734,215 shares as of 2021-09-30.

Rock Springs Capital Management LP added to a holding in Ultragenyx Pharmaceutical Inc by 72.28%. The purchase prices were between $77.92 and $102.4, with an estimated average price of $90.63. The stock is now traded at around $79.420000. The impact to a portfolio due to this purchase was 0.65%. The holding were 801,109 shares as of 2021-09-30.

Rock Springs Capital Management LP added to a holding in Ascendis Pharma A/S by 71.31%. The purchase prices were between $112.67 and $176.92, with an estimated average price of $137.27. The stock is now traded at around $154.720000. The impact to a portfolio due to this purchase was 0.57%. The holding were 400,000 shares as of 2021-09-30.

Rock Springs Capital Management LP added to a holding in Cerevel Therapeutics Holdings Inc by 57.39%. The purchase prices were between $21.26 and $38.85, with an estimated average price of $28.11. The stock is now traded at around $37.820000. The impact to a portfolio due to this purchase was 0.36%. The holding were 1,600,589 shares as of 2021-09-30.

Rock Springs Capital Management LP added to a holding in Accolade Inc by 38.80%. The purchase prices were between $41.3 and $54.56, with an estimated average price of $47.11. The stock is now traded at around $34.495000. The impact to a portfolio due to this purchase was 0.23%. The holding were 923,000 shares as of 2021-09-30.

Rock Springs Capital Management LP added to a holding in Sierra Oncology Inc by 28.99%. The purchase prices were between $16.4 and $23.1, with an estimated average price of $19.99. The stock is now traded at around $22.410000. The impact to a portfolio due to this purchase was 0.14%. The holding were 1,313,997 shares as of 2021-09-30.

Rock Springs Capital Management LP added to a holding in Macrogenics Inc by 40.81%. The purchase prices were between $19.74 and $28.7, with an estimated average price of $24.13. The stock is now traded at around $19.205000. The impact to a portfolio due to this purchase was 0.08%. The holding were 641,816 shares as of 2021-09-30.

Rock Springs Capital Management LP sold out a holding in BeiGene Ltd. The sale prices were between $249.6 and $403.14, with an estimated average price of $327.28.

Rock Springs Capital Management LP sold out a holding in Ardelyx Inc. The sale prices were between $1.27 and $8.17, with an estimated average price of $2.73.

Rock Springs Capital Management LP sold out a holding in Biogen Inc. The sale prices were between $282.99 and $369.05, with an estimated average price of $328.16.

Rock Springs Capital Management LP sold out a holding in Boston Scientific Corp. The sale prices were between $41.23 and $45.88, with an estimated average price of $44.25.

Rock Springs Capital Management LP sold out a holding in PPD Inc. The sale prices were between $45.75 and $46.85, with an estimated average price of $46.29.

Rock Springs Capital Management LP sold out a holding in Adaptive Biotechnologies Corp. The sale prices were between $30.02 and $39.87, with an estimated average price of $36.27.