Emerald Advisers, Llc Buys Alkermes PLC, Biohaven Pharmaceutical Holding Co, First Advantage Corp, Sells The AZEK Co Inc, Dicerna Pharmaceuticals Inc, Summit Materials Inc

• New Purchases: ALKS, BHVN, FA, SKYT, IMGO, STER, FATE, TRIN, SWIM, ZVIA, TMCI, WHD, CVRX, AVIR, MASS, THRN, FANG, DV, GXO, OLPX, ZIP, MP, STVN, NKE, TJX, BYRN, AMD, PLTR, CUBI, FLL,
• Added Positions: SMTC, MNKD, MMSI, REPL, SMCI, ITGR, COHU, DIOD, ARNA, WOOF, RETA, GOSS, PLMR, RAMP, VC, ORIC, MC, TBK, BJRI, MTSI, NEO, SEAS, ARVN, EVRI, SMPL, TNET, MEG, EBC, PPBI, PRFT, BW, PSTG, AVNT, EYE, JACK, DKS, DOOR, PLNT, LIND, AIMC, GTLS, MODN, NVEE, CHGG, BPMC, RPD, LOB, KRTX, HLI, SAIL, LSCC, SI, SNCY, JAMF, JAMF, HASI, PING, HES, FWRD, RHP, GOOGL, FARO, OCFC, TTEK, UTHR, CRIS, WGO, PLCE, PINS, NDLS, VIAV, MAX, EEFT, MTZ, SPGI, CHUY, WSC, CRS, DXCM, SHEN, QTWO, TTI, SPNE, HEES, AZO, MPWR, CCK, AGS, MKTX, POOL, WSM, KEYS, ZEN, CMG, RNG, EPAM, PANW,
• Reduced Positions: EVER, ECHO, BRBR, BXS, TREX, ATRC, CNK, SSB, OCUL, PASG, FIVE, AHCO, COLL, CCOI, ONTO, FORM, KTOS, TMDX, KALV, RARE, OSTK, CWH, PYPL, ETSY, ALNY, LNG, SYNH, FB, HAYW, AYX, DOCU, PLAN, CHWY, CTLT, MRVI, H, SMG, APH, ADI, CDNS, CSGP, EXPE, MTCH, IONS, PEGA, PII, VEEV, XPO, TTWO, TER, TRMB, OC, FLT, HZNP, ZNGA, ENPH,
• Sold Out: AZEK, DRNA, SUM, CVET, RPAY, HYFM, SEER, AVRO, PTGX, FTI, PNFP, MRCY, NVCR, UTZ, LC, TRHC, DCPH, UIS, VSH, SQ, ALRM, XLRN, QTS, GLPI, ORRF, ARKG, KLAC, THG, EXAS, SHLS, AEO, GDRX, HEAR, S, S, ATEX, CERT, BLD, CNNE, ONEM, INMD, LTHM, ORGO, TIGO, ABT, APD, ATI, AMT, ANSS, CVS, CSCO, C, CZFS, GS, IIVI, JPM, TWTR, ODFL, PFIS, PLUG, CRM, TGT, XPER, EMAN, VG, MRTX, SEM, ATSG, BURL,

For the details of EMERALD ADVISERS, LLC's stock buys and sells, go to https://www.gurufocus.com/guru/emerald+advisers%2C+llc/current-portfolio/portfolio

1. Rapid7 Inc (RPD) - 592,117 shares, 2.43% of the total portfolio. Shares added by 1.43%
2. Chart Industries Inc (GTLS) - 342,436 shares, 2.38% of the total portfolio. Shares added by 1.06%
3. Varonis Systems Inc (VRNS) - 863,687 shares, 1.91% of the total portfolio. Shares added by 0.85%
4. Freshpet Inc (FRPT) - 360,367 shares, 1.87% of the total portfolio. Shares added by 0.18%
5. Perficient Inc (PRFT) - 442,475 shares, 1.86% of the total portfolio. Shares added by 2.76%

Emerald Advisers, Llc initiated holding in Alkermes PLC. The purchase prices were between $23.37 and $32.13, with an estimated average price of $28.23. The stock is now traded at around $28.940000. The impact to a portfolio due to this purchase was 1.28%. The holding were 1,140,633 shares as of 2021-09-30.

Emerald Advisers, Llc initiated holding in Biohaven Pharmaceutical Holding Co Ltd. The purchase prices were between $98.85 and $138.91, with an estimated average price of $124.65. The stock is now traded at around $140.740000. The impact to a portfolio due to this purchase was 1.04%. The holding were 207,006 shares as of 2021-09-30.

Emerald Advisers, Llc initiated holding in First Advantage Corp. The purchase prices were between $18.32 and $24.13, with an estimated average price of $21.02. The stock is now traded at around $19.840000. The impact to a portfolio due to this purchase was 0.67%. The holding were 963,969 shares as of 2021-09-30.

Emerald Advisers, Llc initiated holding in SkyWater Technology Inc. The purchase prices were between $15.75 and $34.35, with an estimated average price of $26.15. The stock is now traded at around $32.050000. The impact to a portfolio due to this purchase was 0.59%. The holding were 600,297 shares as of 2021-09-30.

Emerald Advisers, Llc initiated holding in Imago BioSciences Inc. The purchase prices were between $16 and $28.84, with an estimated average price of $21.56. The stock is now traded at around $27.680000. The impact to a portfolio due to this purchase was 0.42%. The holding were 572,029 shares as of 2021-09-30.

Emerald Advisers, Llc initiated holding in Sterling Check Corp. The purchase prices were between $25.42 and $26.9, with an estimated average price of $26.22. The stock is now traded at around $22.790000. The impact to a portfolio due to this purchase was 0.39%. The holding were 411,880 shares as of 2021-09-30.

Emerald Advisers, Llc added to a holding in Semtech Corp by 30.10%. The purchase prices were between $59.32 and $82.39, with an estimated average price of $68.63. The stock is now traded at around $84.310000. The impact to a portfolio due to this purchase was 0.27%. The holding were 411,291 shares as of 2021-09-30.

Emerald Advisers, Llc added to a holding in MannKind Corp by 49.61%. The purchase prices were between $3.89 and $5.48, with an estimated average price of $4.52. The stock is now traded at around $4.800000. The impact to a portfolio due to this purchase was 0.22%. The holding were 4,229,289 shares as of 2021-09-30.

Emerald Advisers, Llc added to a holding in Merit Medical Systems Inc by 21.83%. The purchase prices were between $59.6 and $73.23, with an estimated average price of $67.87. The stock is now traded at around $67.700000. The impact to a portfolio due to this purchase was 0.21%. The holding were 449,787 shares as of 2021-09-30.

Emerald Advisers, Llc added to a holding in Replimune Group Inc by 25.88%. The purchase prices were between $28.98 and $39.54, with an estimated average price of $32.59. The stock is now traded at around $29.950000. The impact to a portfolio due to this purchase was 0.2%. The holding were 921,775 shares as of 2021-09-30.

Emerald Advisers, Llc added to a holding in Super Micro Computer Inc by 24.21%. The purchase prices were between $32.95 and $38.95, with an estimated average price of $36.28. The stock is now traded at around $35.440000. The impact to a portfolio due to this purchase was 0.13%. The holding were 507,854 shares as of 2021-09-30.

Emerald Advisers, Llc added to a holding in Petco Health and Wellness Co Inc by 22.93%. The purchase prices were between $19.2 and $22.7, with an estimated average price of $21.1. The stock is now traded at around $24.700000. The impact to a portfolio due to this purchase was 0.11%. The holding were 771,556 shares as of 2021-09-30.

Emerald Advisers, Llc sold out a holding in The AZEK Co Inc. The sale prices were between $35.21 and $43.21, with an estimated average price of $39.03.

Emerald Advisers, Llc sold out a holding in Dicerna Pharmaceuticals Inc. The sale prices were between $19.68 and $39.99, with an estimated average price of $27.67.

Emerald Advisers, Llc sold out a holding in Summit Materials Inc. The sale prices were between $30.47 and $36.25, with an estimated average price of $33.22.

Emerald Advisers, Llc sold out a holding in Covetrus Inc. The sale prices were between $18.14 and $27.03, with an estimated average price of $22.96.

Emerald Advisers, Llc sold out a holding in Repay Holdings Corp. The sale prices were between $21.53 and $25.29, with an estimated average price of $23.47.

Emerald Advisers, Llc sold out a holding in Hydrofarm Holdings Group Inc. The sale prices were between $37.85 and $58.44, with an estimated average price of $48.75.