Palo Alto Investors LP holdings history

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137 is the total number of securities Palo Alto Investors LP has owned. The longest Palo Alto Investors LP has owned a single stock is 45 quarters.

Palo Alto Investors LP historical holdings. Includes current and past holdings.
Period Weighting Quarter
TickerNameLongestShortestMin.Avg.Max.FirstLatest↓ Count
BMRN Biomarin Pharmaceutica...45454.20%9.92%16.64%Q2 2013Q2 202445
UTHR UNITED THERAPEUTICS CO...45454.35%9.59%15.29%Q2 2013Q2 202445
INSM INSMED INC45450.38%7.42%16.61%Q2 2013Q2 202445
STAA STAAR Surgical Company45450.97%5.04%11.83%Q2 2013Q2 202445
FOLD AMICUS THERAPEUTICS INC45450.68%4.96%13.26%Q2 2013Q2 202445
PRTA PROTHENA CORP PLC45450.14%2.79%9.14%Q2 2013Q2 202445
VNDA VANDA PHARMACEUTICALS INC43430.11%2.84%5.78%Q2 2013Q4 202343
CYTK CYTOKINETICS INC43430.03%0.19%0.88%Q4 2013Q2 202443
ALGN ALIGN TECHNOLOGY INC42420.02%1.32%2.52%Q1 2014Q2 202442
ABMD ABIOMED INC38384.13%10.13%17.12%Q2 2013Q3 202238
KPTI KARYOPHARM THERAPEUTIC...38380.40%2.31%6.92%Q1 2015Q2 202438
CLVS CLOVIS ONCOLOGY INC36360.42%5.17%14.55%Q4 2013Q3 202236
RIGL RIGEL PHARMACEUTICALS INC36360.11%0.68%2.36%Q2 2013Q1 202236
ACAD ACADIA PHARMACEUTICALS...34341.01%3.38%6.80%Q1 2016Q2 202434
SAGE SAGE THERAPEUTICS INC33330.95%3.11%7.08%Q2 2016Q2 202433
AMAG AMAG PHARMACEUTICALS INC30301.36%3.53%6.73%Q2 2013Q3 202030
EPZM EPIZYME INC29290.06%3.28%8.32%Q2 2015Q2 202229
MNTA MOMENTA PHARMACEUTICAL...29291.03%1.50%3.48%Q2 2013Q2 202029
ALIM ALIMERA SCIENCES INC28280.07%0.58%2.37%Q2 2013Q1 202028
DRNA DICERNA PHARMACEUTICAL...26260.03%0.28%1.04%Q2 2015Q3 202126
ZGNX ZOGENIX INC26260.02%0.09%0.24%Q3 2015Q4 202126
SPHS SOPHIRIS BIO INC26260.01%0.03%0.10%Q3 2013Q4 201926
CELG CELGENE CORP25250.02%1.28%2.10%Q3 2013Q3 201925
GILD GILEAD SCIENCES INC24240.01%0.99%2.16%Q1 2014Q4 201924
EXAS EXACT SCIENCES CORP24240.20%0.72%1.81%Q3 2013Q2 201924
RVNC REVANCE THERAPEUTICS INC1930.08%4.53%14.06%Q1 2014Q2 202422
ALXN ALEXION PHARMACEUTICAL...21210.96%4.90%6.93%Q2 2016Q2 202121
AIMT AIMMUNE THERAPEUTICS INC21210.04%1.91%6.23%Q3 2015Q3 202021
ALDX ALDEYRA THERAPEUTICS INC21210.02%0.07%0.13%Q2 2019Q2 202421
SHPG SHIRE PLC20200.01%1.08%1.66%Q1 2014Q4 201820
HSGX HISTOGENICS CORP19190.00%0.07%0.29%Q4 2014Q2 201919
WMGI WRIGHT MEDICAL GROUP NV18180.58%3.16%4.13%Q4 2015Q1 202018
SNDX SYNDAX PHARMACEUTICALS...18180.06%0.71%1.33%Q1 2020Q2 202418
SNSS SUNESIS PHARMACEUTICAL...18180.01%0.10%0.30%Q3 2016Q4 202018
URGN UROGEN PHARMA LTD18180.02%0.03%0.05%Q1 2020Q2 202418
GOSS GOSSAMER BIO INC17170.01%0.80%1.66%Q2 2020Q2 202417
EHTH EHEALTH INC16160.61%2.03%4.39%Q3 2020Q2 202416
ANAB ANAPTYSBIO INC16160.30%0.94%2.33%Q3 2020Q2 202416
BIIB BIOGEN INC15153.01%7.12%9.27%Q4 2020Q2 202415
ALKS ALKERMES PLC15150.16%1.19%1.60%Q4 2020Q2 202415
TVTX TRAVERE THERAPEUTICS INC15150.09%0.23%0.35%Q4 2020Q2 202415
IMMU IMMUNOMEDICS INC14141.24%5.98%22.65%Q2 2017Q3 202014
KZR KEZAR LIFE SCIENCES INC14140.06%0.31%0.84%Q2 2020Q3 202314
IDRA IDERA PHARMACEUTICALS INC14140.03%0.12%0.22%Q1 2015Q2 201814
SQNM SEQUENOM INC13130.71%1.88%4.08%Q2 2013Q2 201613
ARIA ARIAD PHARMACEUTICALS INC13130.63%1.31%2.30%Q4 2013Q4 201613
ACRX ACELRX PHARMACEUTICALS...13130.10%0.34%0.84%Q3 2014Q3 201713
KLDO KALEIDO BIOSCIENCES INC13130.04%0.33%0.52%Q1 2019Q1 202213
MRNS MARINUS PHARMACEUTICAL...850.01%0.02%0.02%Q3 2015Q4 202013
IDRA IDERA PHARMACEUTICALS INC13130.01%0.01%0.03%Q3 2018Q3 202113
ANAC ANACOR PHARMACEUTICALS...12121.07%6.36%14.60%Q2 2013Q1 201612
PBYI PUMA BIOTECHNOLOGY INC12120.59%0.92%1.91%Q4 2018Q3 202112
TCMD TACTILE SYSTEMS TECHNO...12120.02%0.05%0.08%Q4 2020Q3 202312
ZLTQ ZELTIQ AESTHETICS INC11110.48%1.95%5.34%Q3 2014Q1 201711
MIRM MIRUM PHARMACEUTICALS INC11110.07%0.14%0.26%Q4 2021Q2 202411
ALIMERA SCIENCES INC11110.04%0.07%0.11%Q2 2020Q4 202211
ADHD ALCOBRA LTD11110.01%0.05%0.09%Q1 2015Q3 201711
KYTH Kythera BioPharm CMN10100.28%2.74%4.32%Q2 2013Q3 201510
GRTS GRITSTONE ONCOLOGY INC10100.10%0.81%1.94%Q1 2021Q2 202310
OREX OREXIGEN THERAPEUTICS INC10100.05%0.47%0.90%Q1 2014Q2 201610
XOMA Xoma Ltd.10100.03%0.16%0.22%Q2 2013Q3 201510
MGTA MAGENTA THERAPEUTICS INC10100.04%0.14%0.29%Q2 2020Q3 202210
XON INTREXON CORP10100.04%0.08%0.12%Q4 2014Q1 201710
NERV MINERVA NEUROSCIENCES INC10100.00%0.01%0.02%Q2 2019Q3 202110
CYBX CYBERONICS INC991.09%7.18%11.91%Q2 2013Q2 20159
MDVN MEDIVATION INC990.70%1.13%1.88%Q2 2014Q2 20169
ALDR ALDER BIOPHARMACEUTICA...990.03%1.09%2.34%Q3 2017Q3 20199
CEMP CEMPRA INC880.05%1.42%4.00%Q4 2015Q3 20178
QLTI QLT INC880.06%0.75%1.07%Q2 2013Q1 20158
AUXL AUXILIUM PHARMACEUTICA...775.59%8.95%10.88%Q2 2013Q4 20147
CBST CUBIST PHARMACEUTICALS...774.31%7.53%9.14%Q2 2013Q4 20147
ENDP ENDO INTL PLC771.09%2.33%3.82%Q1 2015Q3 20167
AVEO AVEO PHARMACEUTICALS INC770.03%0.36%1.04%Q2 2013Q4 20147
HPTX HYPERION THERAPEUTICS INC770.09%0.14%0.22%Q2 2013Q4 20147
TRVN TREVENA INC770.02%0.03%0.06%Q1 2017Q3 20187
MARINUS PHARMACEUTICAL...770.01%0.02%0.03%Q1 2021Q3 20227
NVCR NOVOCURE LTD660.16%1.00%1.94%Q1 2023Q2 20246
HTWR HEARTWARE INTL INC660.61%0.83%1.19%Q1 2015Q2 20166
ISRG INTUITIVE SURGICAL INC660.56%0.72%0.81%Q2 2014Q3 20156
SNSS SUNESIS PHARMACEUTICAL...660.07%0.23%0.35%Q1 2015Q2 20166
RLMD RELMADA THERAPEUTICS INC660.10%0.23%0.38%Q1 2023Q2 20246
ATNX ATHENEX INC660.06%0.12%0.18%Q2 2020Q3 20216
BSTC BIOSPECIFICS TECHNOLOG...660.02%0.08%0.12%Q2 2014Q3 20156
ITMN INTERMUNE INC552.02%8.43%16.88%Q2 2013Q2 20145
QCOR QUESTCOR PHARMACEUTICA...551.51%3.87%5.20%Q2 2013Q2 20145
T107PS WRIGHT MED GROUP INC551.88%2.44%3.22%Q3 2014Q3 20155
SRPT SAREPTA THERAPEUTICS INC550.87%2.06%3.69%Q2 2023Q2 20245
P103PS NPS PHARMACEUTICALS INC551.08%1.92%3.30%Q4 2013Q4 20145
CLDN CELLADON CORP551.14%1.46%1.75%Q1 2014Q1 20155
NVRO NEVRO CORP550.38%0.90%1.46%Q2 2023Q2 20245
QURE UNIQURE NV550.01%0.02%0.02%Q3 2015Q3 20165
MLNT MELINTA THERAPEUTICS INC550.00%0.01%0.03%Q4 2017Q4 20185
THOR THORATEC CORP440.51%2.92%5.26%Q4 2014Q3 20154
SPPI SPECTRUM PHARMACEUTICA...440.26%0.32%0.35%Q2 2013Q1 20144
MNKKQ MALLINCKRODT PUB LTD CO440.02%0.02%0.02%Q3 2014Q2 20154
MLNTQ MELINTA THERAPEUTICS INC440.00%0.00%0.00%Q1 2019Q4 20194
VPHM ViroPharma Incorporated331.35%9.17%13.42%Q2 2013Q4 20133
IOVA IOVANCE BIOTHERAPEUTIC...331.54%2.35%3.53%Q4 2023Q2 20243
VERV VERVE THERAPEUTICS INC330.33%0.64%0.86%Q4 2023Q2 20243
BLUE BLUEBIRD BIO INC330.41%0.53%0.66%Q4 2023Q2 20243
PRVB PROVENTION BIO INC330.14%0.42%0.78%Q3 2022Q1 20233
GERN GERON CORP330.09%0.19%0.30%Q1 2014Q3 20143
TSHA TAYSHA GENE THERAPIES INC330.08%0.19%0.26%Q4 2023Q2 20243
VYNE THERAPEUTICS INC ...330.09%0.12%0.15%Q4 2023Q2 20243
APRE APREA THERAPEUTICS INC330.03%0.10%0.16%Q2 2020Q4 20203
RTRX RETROPHIN INC330.06%0.09%0.16%Q1 2020Q3 20203
NVAX NOVAVAX INC330.06%0.08%0.11%Q4 2021Q2 20223
ITCI INTRA-CELLULAR THERAPI...330.05%0.06%0.07%Q4 2019Q2 20203
NXTM NXSTAGE MEDICAL INC210.02%0.05%0.07%Q2 2013Q4 20143
SYRS SYROS PHARMACEUTICALS INC330.02%0.03%0.03%Q1 2021Q3 20213
VIRX VIRACTA THERAPEUTICS INC330.02%0.02%0.02%Q1 2021Q3 20213
ONXX Onyx Pharmaceuticals, ...224.49%9.03%13.58%Q2 2013Q3 20132
ALNY ALNYLAM PHARMACEUTICAL...222.66%2.87%3.08%Q4 2023Q1 20242
ACELYRIN INC220.88%1.09%1.31%Q1 2024Q2 20242
ELEV ELEVATION ONCOLOGY INC220.56%0.67%0.78%Q1 2024Q2 20242
SVNTQ Savient Pharmaceutical...220.57%0.61%0.64%Q2 2013Q3 20132
BIVV BIOVERATIV INC220.51%0.56%0.61%Q3 2017Q4 20172
AZN ASTRAZENECA PLC-SPONS ADR220.11%0.42%0.73%Q3 2021Q4 20212
NUVB NUVATION BIO INC220.26%0.29%0.32%Q1 2024Q2 20242
CYTK Cytokinetics Inc.220.21%0.28%0.36%Q2 2013Q3 20132
SLXP SALIX PHARMACEUTICALS INC220.04%0.28%0.52%Q4 2014Q1 20152
STOK STOKE THERAPEUTICS INC220.19%0.19%0.20%Q1 2024Q2 20242
HUM HUMANA INC220.16%0.16%0.17%Q1 2024Q2 20242
PEAK BIO INC220.03%0.10%0.17%Q4 2022Q1 20232
ACRS ACLARIS THERAPEUTICS INC220.07%0.08%0.08%Q1 2024Q2 20242
Align Technology, Inc.220.03%0.03%0.04%Q3 2013Q4 20132
SLNO SOLENO THERAPEUTICS INC220.01%0.01%0.01%Q2 2017Q3 20172
ALNYLAM PHARMACEUTICAL...115.16%5.16%5.16%Q2 2024Q2 20241
AGN ALLERGAN INC110.93%0.93%0.93%Q2 2014Q2 20141
AEGR Aegerion Pharmaceutica...110.37%0.37%0.37%Q2 2013Q2 20131
DNDNQ Dendreon Corp110.10%0.10%0.10%Q2 2013Q2 20131
TCDA TRICIDA INC110.08%0.08%0.08%Q3 2020Q3 20201
SIGHT SCIENCES INC110.08%0.08%0.08%Q4 2023Q4 20231
EOLS EVOLUS INC110.06%0.06%0.06%Q3 2020Q3 20201
GBIO GENERATION BIO CO110.05%0.05%0.05%Q2 2024Q2 20241
OREXQ OREXIGEN THERAPEUTICS INC110.03%0.03%0.03%Q3 2016Q3 20161
CAPN CAPNIA INC110.01%0.01%0.01%Q1 2017Q1 20171
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The securities at the top of the list , including Biomarin Pharmaceuticals, Inc, UNITED THERAPEUTICS CORP DEL, and INSMED INC, are the highest-conviction holdings of Palo Alto Investors LP.

The conviction is calculated by counting the number of quarters a security has been reported by Palo Alto Investors LP. The higher the number, the higher the conviction and longer the holding period.

This page lists all the securities that Palo Alto Investors LP owns currently or has owned in the past.