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Biren Amin's Stock Ratings
Piper Sandler Analyst
Biren Amin is an analyst at Piper Sandler. Analyst ratings are quantitative and qualitative analysis of a stock by Wall Street stock rating analysts. Stock ratings consist of expected future growth, current stock valuation and macroeconomic trends. Updated 12/15/2025
Updated: Dec 15, 2025
Overall Average Return
4.89%
Smart Score
Overall Average Return Percentile
45th
Number of Ratings
105
| Buy Now | Get Alert | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11/25/2025 | IRD | Buy Now | Opus Genetics | $2.12 | 230.19% | → $7 | Initiates | → Overweight | Get Alert | |
| 11/05/2025 | AAPG | Buy Now | Ascentage Pharma Group | $30.35 | 58.15% | → $48 | Initiates | → Overweight | Get Alert | |
| 10/30/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | -25.37% | $15 → $16 | Maintains | Neutral | Get Alert | |
| 10/30/2025 | BBIO | Buy Now | BridgeBio Pharma | $73.90 | 32.61% | $93 → $98 | Maintains | Overweight | Get Alert | |
| 10/10/2025 | LENZ | Buy Now | LENZ Therapeutics | $17.90 | 274.3% | $51 → $67 | Maintains | Overweight | Get Alert | |
| 10/03/2025 | OCUL | Buy Now | Ocular Therapeutix | $14.17 | 118.77% | $21 → $31 | Maintains | Overweight | Get Alert | |
| 09/25/2025 | MNPR | Buy Now | Monopar Therapeutics | $75.12 | 26.46% | $76 → $95 | Maintains | Overweight | Get Alert | |
| 07/29/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | -30.03% | $11 → $15 | Maintains | Neutral | Get Alert | |
| 07/22/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | -48.69% | $18 → $11 | Maintains | Neutral | Get Alert | |
| 07/21/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | -16.04% | $32 → $18 | Maintains | Neutral | Get Alert | |
| 07/14/2025 | BBIO | Buy Now | BridgeBio Pharma | $73.90 | -7.98% | $63 → $68 | Maintains | Overweight | Get Alert | |
| 07/10/2025 | ACRS | Buy Now | Aclaris Therapeutics | $3.21 | 86.92% | → $6 | Assumes | → Overweight | Get Alert | |
| 06/26/2025 | CNTX | Buy Now | Context Therapeutics | $1.13 | 252.98% | $4.5 → $4 | Reiterates | Overweight → Overweight | Get Alert | |
| 06/16/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 67.92% | $70 → $36 | Downgrade | Overweight → Neutral | Get Alert | |
| 05/16/2025 | SLDB | Buy Now | Solid Biosciences | $5.71 | 197.72% | $20 → $17 | Maintains | Overweight | Get Alert | |
| 05/14/2025 | ALLO | Buy Now | Allogene Therapeutics | $1.53 | 356.26% | $9 → $7 | Maintains | Overweight | Get Alert | |
| 05/07/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 226.52% | $110 → $70 | Maintains | Overweight | Get Alert | |
| 04/30/2025 | BBIO | Buy Now | BridgeBio Pharma | $73.90 | -14.75% | $46 → $63 | Maintains | Overweight | Get Alert | |
| 04/21/2025 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 413.1% | $182 → $110 | Maintains | Overweight | Get Alert | |
| 04/14/2025 | LENZ | Buy Now | LENZ Therapeutics | $17.90 | 184.92% | $38 → $51 | Maintains | Overweight | Get Alert | |
| 03/31/2025 | CNTA | Buy Now | Centessa Pharmaceuticals | $26.15 | 45.32% | → $38 | Initiates | → Overweight | Get Alert | |
| 03/21/2025 | ELEV | Buy Now | Elevation Oncology | — | — | $10 → $0.7 | Downgrade | Overweight → Neutral | Get Alert | |
| 03/19/2025 | MNPR | Buy Now | Monopar Therapeutics | $75.12 | 1.17% | → $76 | Assumes | → Overweight | Get Alert | |
| 02/19/2025 | CMPX | Buy Now | Compass Therapeutics | $5.07 | 136.69% | → $12 | Initiates | → Overweight | Get Alert | |
| 02/06/2025 | VKTX | Buy Now | Viking Therapeutics | $36.24 | 95.92% | $74 → $71 | Maintains | Overweight | Get Alert | |
| 01/30/2025 | CRGX | Buy Now | Cargo Therapeutics | — | — | $34 → $4 | Downgrade | Overweight → Neutral | Get Alert | |
| 12/02/2024 | VKTX | Buy Now | Viking Therapeutics | $36.24 | 104.19% | → $74 | Initiates | → Overweight | Get Alert | |
| 12/02/2024 | CRBP | Buy Now | Corbus Pharmaceuticals | $9.44 | 270.76% | → $35 | Initiates | → Overweight | Get Alert | |
| 11/27/2024 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 748.94% | $200 → $182 | Maintains | Overweight | Get Alert | |
| 11/14/2024 | IMNM | Buy Now | Immunome | $22.25 | -5.62% | $23 → $21 | Maintains | Overweight | Get Alert | |
| 11/14/2024 | ALLO | Buy Now | Allogene Therapeutics | $1.53 | 486.62% | $11 → $9 | Maintains | Overweight | Get Alert | |
| 11/08/2024 | ACLX | Buy Now | Arcellx | $68.34 | 68.28% | $91 → $115 | Maintains | Overweight | Get Alert | |
| 11/06/2024 | APLS | Buy Now | Apellis Pharmaceuticals | $24.55 | 30.35% | $40 → $32 | Maintains | Neutral | Get Alert | |
| 09/04/2024 | BBIO | Buy Now | BridgeBio Pharma | $73.90 | -37.75% | → $46 | Initiates | → Overweight | Get Alert | |
| 08/13/2024 | CRGX | Buy Now | Cargo Therapeutics | — | — | $37 → $34 | Maintains | Overweight | Get Alert | |
| 08/13/2024 | IMNM | Buy Now | Immunome | $22.25 | 3.37% | $27 → $23 | Maintains | Overweight | Get Alert | |
| 08/08/2024 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 832.9% | $205 → $200 | Maintains | Overweight | Get Alert | |
| 07/19/2024 | AGEN | Buy Now | Agenus | $3.77 | 85.68% | $3 → $7 | Downgrade | Buy → Hold | Get Alert | |
| 07/01/2024 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 856.22% | $205 → $205 | Maintains | Overweight | Get Alert | |
| 06/27/2024 | CRGX | Buy Now | Cargo Therapeutics | — | — | → $37 | Initiates | → Overweight | Get Alert | |
| 06/21/2024 | SLDB | Buy Now | Solid Biosciences | $5.71 | 250.26% | $20 → $20 | Reiterates | Overweight → Overweight | Get Alert | |
| 06/21/2024 | OCUL | Buy Now | Ocular Therapeutix | $14.17 | 5.86% | $15 → $15 | Maintains | Overweight | Get Alert | |
| 06/21/2024 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 632.33% | $157 → $157 | Maintains | Overweight | Get Alert | |
| 05/31/2024 | SRPT | Buy Now | Sarepta Therapeutics | $21.44 | 632.33% | → $157 | Initiates | → Overweight | Get Alert | |
| 05/31/2024 | IMNM | Buy Now | Immunome | $22.25 | 21.35% | → $27 | Initiates | → Overweight | Get Alert | |
| 05/31/2024 | ELEV | Buy Now | Elevation Oncology | — | — | → $10 | Initiates | → Overweight | Get Alert | |
| 05/31/2024 | APLS | Buy Now | Apellis Pharmaceuticals | $24.55 | 87.37% | → $46 | Initiates | → Neutral | Get Alert | |
| 05/31/2024 | ALLO | Buy Now | Allogene Therapeutics | $1.53 | 616.99% | → $11 | Initiates | → Overweight | Get Alert | |
| 05/31/2024 | ACLX | Buy Now | Arcellx | $68.34 | 2.43% | → $70 | Initiates | → Overweight | Get Alert | |
| 05/19/2023 | ZNTL | Buy Now | Zentalis Pharma | $1.43 | 4794.76% | $120 → $70 | Maintains | Buy | Get Alert | |
| 02/17/2021 | CRTX | Buy Now | Cortexyme | — | — | $59 → $34 | Downgrade | Buy → Hold | Get Alert | |
| 01/11/2021 | BCAB | Buy Now | BioAtla | $0.81 | 6164.59% | → $51 | Initiates | → Buy | Get Alert | |
| 11/13/2020 | UROV | Buy Now | Urovant Sciences | — | — | → $16.25 | Downgrade | Buy → Hold | Get Alert | |
| 10/30/2020 | ALDX | Buy Now | Aldeyra Therapeutics | $3.46 | 593.64% | → $24 | Initiates | → Buy | Get Alert | |
| 10/19/2020 | TSHA | Buy Now | Taysha Gene Therapies | $5.75 | 491.3% | → $34 | Initiates | → Buy | Get Alert | |
| 09/14/2020 | KALA | Buy Now | Kala Pharmaceuticals | $0.60 | 1566.11% | $21 → $10 | Downgrade | Buy → Hold | Get Alert | |
| 07/24/2020 | IMTX | Buy Now | Immatics | $9.98 | 40.28% | → $14 | Initiates | → Buy | Get Alert | |
| 07/14/2020 | FMTX | Buy Now | Forma Therapeutics Hldgs | — | — | → $54 | Initiates | → Buy | Get Alert | |
| 06/12/2020 | REGN | Buy Now | Regeneron Pharmaceuticals | $752.62 | -8.19% | $657 → $691 | Maintains | Buy | Get Alert | |
| 06/02/2020 | CRTX | Buy Now | Cortexyme | — | — | → $59 | Initiates | → Buy | Get Alert | |
| 06/01/2020 | CTMX | Buy Now | CytomX Therapeutics | $4.12 | 142.72% | $16 → $10 | Downgrade | Buy → Hold | Get Alert | |
| 04/28/2020 | ZNTL | Buy Now | Zentalis Pharma | $1.43 | 2766.93% | → $41 | Initiates | → Buy | Get Alert | |
| 03/27/2020 | CALA | Buy Now | Calithera Biosciences | $0.00 | 1999900% | → $6 | Initiates | → Buy | Get Alert | |
| 02/25/2020 | REGN | Buy Now | Regeneron Pharmaceuticals | $752.62 | -34.63% | $355 → $492 | Upgrade | Hold → Buy | Get Alert | |
| 12/19/2019 | THOR | Buy Now | Synthorx | — | — | $23 → $68 | Downgrade | Buy → Hold | Get Alert | |
| 09/16/2019 | ZYNE | Buy Now | Zynerba Pharmaceuticals | — | — | → $11 | Assumes | → Hold | Get Alert | |
| 03/14/2019 | KALA | Buy Now | Kala Pharmaceuticals | $0.60 | 2399.17% | → $15 | Initiates | → Buy | Get Alert | |
| 10/22/2018 | UROV | Buy Now | Urovant Sciences | — | — | → $19 | Initiates | → Buy | Get Alert | |
| 06/13/2018 | ADXS | Buy Now | Advaxis | $0.05 | 3821.57% | $9 → $2 | Downgrade | Buy → Hold | Get Alert | |
| 06/13/2018 | ARMO | Buy Now | ARMO BioSciences | — | — | $61 → $50 | Downgrade | Buy → Hold | Get Alert | |
| 02/20/2018 | ARMO | Buy Now | ARMO BioSciences, Inc. - Common Stock | — | — | → $61 | Initiates | → Buy | Get Alert | |
| 12/11/2017 | BLUE | Buy Now | bluebird bio | — | — | — | Upgrade | Hold → Buy | Get Alert | |
| 11/09/2017 | ANAB | Buy Now | AnaptysBio | $47.63 | 112.05% | → $101 | Initiates | → Buy | Get Alert | |
| 10/11/2017 | BLUE | Buy Now | bluebird bio | — | — | — | Downgrade | Buy → Hold | Get Alert | |
| 10/03/2017 | NBIX | Buy Now | Neurocrine Biosciences | $155.00 | -55.48% | $66 → $69 | Maintains | Buy | Get Alert | |
| 08/15/2017 | ZYNE | Buy Now | Zynerba Pharmaceuticals | — | — | — | Downgrade | Buy → Hold | Get Alert | |
| 07/11/2017 | VRTX | Buy Now | Vertex Pharmaceuticals | $457.05 | -66.09% | → $155 | Initiates | → Buy | Get Alert | |
| 04/03/2017 | FWP | Buy Now | Forward Pharma | — | — | — | Downgrade | Buy → Hold | Get Alert | |
| 03/07/2017 | ONS | Buy Now | Oncobiologics | — | — | $7 → $3 | Downgrade | Buy → Hold | Get Alert | |
| 03/06/2017 | NERV | Buy Now | Minerva Neurosciences | $3.95 | 330.38% | → $17 | Initiates | → Buy | Get Alert | |
| 02/21/2017 | OBSV | Buy Now | ObsEva | — | — | — | Initiates | → Buy | Get Alert | |
| 01/24/2017 | NK | Buy Now | NantKwest | — | — | — | Downgrade | Buy → Hold | Get Alert | |
| 12/06/2016 | ZYNE | Buy Now | Zynerba Pharmaceuticals | — | — | → $32 | Reinstates | Buy → Buy | Get Alert | |
| 10/05/2016 | VRTX | Buy Now | Vertex Pharmaceuticals | $457.05 | -77.03% | $104 → $105 | Maintains | Buy | Get Alert | |
| 09/29/2016 | VRTX | Buy Now | Vertex Pharmaceuticals | $457.05 | -77.25% | $107 → $104 | Maintains | Buy | Get Alert | |
| 05/27/2016 | NERV | Buy Now | Minerva Neurosciences | $3.95 | 330.38% | $10 → $17 | Maintains | Buy | Get Alert | |
| 05/12/2016 | NERV | Buy Now | Minerva Neurosciences | $3.95 | 153.16% | → $10 | Assumes | → Buy | Get Alert | |
| 02/03/2016 | BEAV | Buy Now | B/E Aerospace | — | — | $50 → $46 | Maintains | Hold | Get Alert | |
| 02/01/2016 | VRTX | Buy Now | Vertex Pharmaceuticals | $457.05 | -73.74% | → $120 | Upgrade | Hold → Buy | Get Alert | |
| 01/28/2016 | STJ | Buy Now | St Jude Medical | — | — | $70 → $60 | Maintains | Hold | Get Alert | |
| 01/28/2016 | JNS | Buy Now | Janus Capital Group | — | — | $16 → $18 | Maintains | Buy | Get Alert | |
| 01/28/2016 | EMC | Buy Now | EMC | $30.18 | -7.22% | $29 → $28 | Maintains | Hold | Get Alert | |
| 01/25/2016 | JAH | Buy Now | Jarden | — | — | $68 → $65 | Maintains | Buy | Get Alert | |
| 01/21/2016 | TMH | Buy Now | Team Health Holdings | $60.87 | 6.78% | $80 → $65 | Maintains | Buy | Get Alert | |
| 01/20/2016 | JOY | Buy Now | Joy Global | — | — | $13 → $15 | Maintains | Hold | Get Alert | |
| 01/19/2016 | NMBL | Buy Now | Nimble Storage | $19.95 | -24.79% | $20 → $15 | Maintains | Buy | Get Alert | |
| 01/19/2016 | HGG | Buy Now | HHGregg | — | — | $4.4 → $2 | Maintains | Hold | Get Alert | |
| 12/07/2015 | BLUE | Buy Now | bluebird bio | — | — | $108 → $96 | Maintains | Buy | Get Alert | |
| 11/12/2015 | ZYNE | Buy Now | Zynerba Pharmaceuticals | — | — | $33 → $32 | Maintains | Buy | Get Alert | |
| 10/23/2015 | BLUE | Buy Now | bluebird bio | — | — | → $108 | Initiates | → Buy | Get Alert | |
| 09/09/2015 | FWP | Buy Now | Forward Pharma | — | — | $43 → $42 | Maintains | Buy | Get Alert | |
| 09/09/2015 | VRTX | Buy Now | Vertex Pharmaceuticals | $457.05 | -71.56% | → $130 | Initiates | → Hold | Get Alert | |
| 08/24/2015 | NK | Buy Now | NantKwest | — | — | → $23 | Initiates | → Buy | Get Alert | |
| 05/15/2015 | ADXS | Buy Now | Advaxis | $0.05 | 52841.18% | → $27 | Initiates | → Buy | Get Alert | |
| 07/28/2014 | NERV | Buy Now | Minerva Neurosciences | $3.95 | 153.16% | → $10 | Initiates | → Buy | Get Alert |
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