Stock Screener
Stock Research
Market Indexes
Precious Metals
Energy
Commodities
Interest Rates
Economy
Global Metrics

ProPhase Labs - 31 Year Stock Price History | PRPH

Historical daily share price chart and data for ProPhase Labs since 1994 adjusted for splits and dividends. The latest closing stock price for ProPhase Labs as of July 23, 2025 is 0.43.
  • The all-time high ProPhase Labs stock closing price was 14.70 on July 11, 2022.
  • The ProPhase Labs 52-week high stock price is 3.37, which is 683.7% above the current share price.
  • The ProPhase Labs 52-week low stock price is 0.22, which is 48.8% below the current share price.
  • The average ProPhase Labs stock price for the last 52 weeks is 1.07.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
  
ProPhase Labs Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 0.3971 0.8800 0.8800 0.2370 0.4350 -42.54%
2024 3.6071 4.6400 7.3500 0.6105 0.7571 -83.25%
2023 6.6414 9.5700 9.7800 4.2300 4.5200 -53.06%
2022 9.4213 6.8227 14.7000 5.9804 9.6300 45.87%
2021 6.1446 9.2826 14.0380 4.0447 6.6017 -18.04%
2020 3.1622 1.7460 9.8705 1.0528 8.0543 366.00%
2019 1.9582 2.3410 2.6256 1.2658 1.7284 -23.83%
2018 1.7923 0.9481 2.3555 0.9481 2.2690 147.03%
2017 0.8856 0.8593 0.9735 0.7915 0.9185 8.49%
2016 0.6753 0.5884 0.9142 0.4910 0.8466 33.34%
2015 0.6095 0.6011 0.7238 0.5079 0.6349 2.73%
2014 0.7058 0.7026 0.9524 0.5291 0.6180 -9.32%
2013 0.7054 0.5926 0.9524 0.5926 0.6815 18.38%
2012 0.5049 0.5164 0.7111 0.2760 0.5757 18.26%
2011 0.4449 0.5122 0.6899 0.3175 0.4868 -4.15%
2010 0.6590 0.8466 0.9524 0.3386 0.5079 -38.78%
2009 1.5125 1.7566 2.8233 0.6349 0.8296 -51.00%
2008 2.0674 2.2095 2.4762 1.3122 1.6932 -16.14%
2007 2.3164 2.4085 3.3228 1.2783 2.0191 -16.17%
2006 3.9418 5.9132 6.6624 2.3746 2.4085 -58.83%
2005 3.9722 3.5513 6.7556 3.1661 5.8497 63.98%
2004 3.7009 4.3683 4.5672 3.0730 3.5674 -20.79%
2003 3.2094 2.4169 4.7196 2.1418 4.5037 93.46%
2002 2.2268 1.2741 3.5471 1.1979 2.3280 139.14%
2001 0.5071 0.3704 0.9735 0.3439 0.9735 183.08%
2000 0.6465 0.6481 1.2698 0.2910 0.3439 -49.02%
1999 1.8496 2.4339 2.5397 0.6614 0.6746 -71.19%
1998 3.8822 6.1640 6.7990 2.0899 2.3413 -61.69%
1997 5.7178 3.8222 9.3915 3.2672 6.1111 65.59%
1996 0.9398 0.0317 4.4180 0.0212 3.6905 12367.91%
1995 0.0314 0.0296 0.0463 0.0132 0.0296 -12.68%
Sector Industry Market Cap Revenue
Medical Medical - Drug Manufacturing $0.018B $0.007B
ProPhase Labs, Inc., formerly known as The Quigley Corporation, is a manufacturer, marketer and distributor of a diversified range of homeopathic and health products that are offered to the general public. The Company's mission is to develop and market natural health care pharmaceuticals and nutriceuticals that offer pioneering new options to improve patient treatment results. Its consumer health products, marketed through ProPhase Labs and certain subsidiaries, include the original COLD-EEZE?, a zinc gluconate glycine product. COLD-EEZE? family of lozenges and sugar free tablets reduce the severity and duration of the common cold. Its customers include wholesalers and distributors, as well as independent and chain food, drug and mass merchandise stores and pharmacies. ProPhase Labs is also engaged in the research and development of potential natural base health products along with supplements and cosmeceuticals for human and veterinary use. The Company is headquartered in Doylestown, Pennsylvania.
Stock Name Country Market Cap PE Ratio
Chugai Pharmaceutical (CHGCY) Japan $80.235B 30.10
Zoetis (ZTS) United States $68.317B 25.49
Daiichi Sankyo, - (DSNKY) Japan $47.094B 24.14
Takeda Pharmaceutical (TAK) Japan $46.902B 9.33
BeOne Medicines - (ONC) Cayman Islands $32.313B 0.00
Sandoz Group AG (SDZNY) Switzerland $26.352B 0.00
Summit Therapeutics (SMMT) United States $20.802B 0.00
Merck (MKKGY) Germany $17.312B 12.69
Shionogi (SGIOY) Japan $14.547B 14.57
United Therapeutics (UTHR) United States $13.785B 12.19
Neurocrine Biosciences (NBIX) United States $13.228B 45.31
Orion OYJ (ORINY) Finland $11.714B 28.23
IPSEN (IPSEY) France $10.869B 0.00
Stevanato Group S.p.A (STVN) Italy $7.695B 47.06
Corcept Therapeutics (CORT) United States $7.252B 58.96
Madrigal Pharmaceuticals (MDGL) United States $6.811B 0.00
Grifols, S.A (GRFS) Spain $6.772B 0.00
Ionis Pharmaceuticals (IONS) United States $6.745B 0.00
Hikma Pharmaceuticals Plc (HKMPF) United Kingdom $5.947B 0.00
Ono Pharmaceutical (OPHLF) Japan $5.214B 15.86
Soleno Therapeutics (SLNO) United States $4.407B 0.00
Hypermarcas (HYPMY) Brazil $3.066B 20.17
Crinetics Pharmaceuticals (CRNX) United States $2.901B 0.00
NewAmsterdam Pharma (NAMS) Netherlands $2.692B 0.00
Catalyst Pharmaceuticals (CPRX) United States $2.631B 9.22
Procaps Group, S.A (PROCF) Luxembourg $2.534B 0.00
AMNEAL PHARMACEUTICALS, INC (AMRX) United States $2.529B 13.68
Centessa Pharmaceuticals (CNTA) United Kingdom $2.079B 0.00
Ocular Therapeutix (OCUL) United States $1.905B 0.00
BioCryst Pharmaceuticals (BCRX) United States $1.802B 0.00
ARS Pharmaceuticals (SPRY) United States $1.768B 0.00
Endo (NDOI) United States $1.603B 0.00
Evotec AG (EVO) Germany $1.357B 0.00
Harrow (HROW) United States $1.356B 0.00
Guardian Pharmacy Services (GRDN) United States $1.310B 0.00
Aurinia Pharmaceuticals Inc (AUPH) Canada $1.242B 24.84
Enliven Therapeutics (ELVN) United States $1.097B 0.00
Avadel Pharmaceuticals (AVDL) Ireland $1.071B 0.00
Dyne Therapeutics (DYN) United States $1.066B 0.00
Akebia Therapeutics (AKBA) United States $1.053B 0.00
Ardelyx (ARDX) United States $1.050B 0.00
Collegium Pharmaceutical (COLL) United States $1.041B 5.62
Verve Therapeutics (VERV) United States $0.989B 0.00
ProKidney (PROK) United States $0.942B 0.00
Cronos Group (CRON) Canada $0.806B 0.00
Xeris Biopharma Holdings (XERS) United States $0.801B 0.00
KalVista Pharmaceuticals (KALV) United States $0.777B 0.00
Amylyx Pharmaceuticals (AMLX) United States $0.748B 0.00
Xencor (XNCR) United States $0.681B 0.00
USANA Health Sciences (USNA) United States $0.660B 13.27
Relay Therapeutics (RLAY) United States $0.650B 0.00
Zevra Therapeutics (ZVRA) United States $0.644B 0.00
Organogenesis (ORGO) United States $0.632B 0.00
Elite Pharmaceuticals (ELTP) United States $0.589B 0.00
Theravance Biopharma (TBPH) United States $0.565B 0.00
Oruka Therapeutics (ORKA) United States $0.544B 0.00
Bioventus (BVS) United States $0.531B 13.48
Siga Technologies (SIGA) United States $0.512B 10.69
Tourmaline Bio (TRML) United States $0.486B 0.00
Savara (SVRA) United States $0.430B 0.00
Aquestive Therapeutics (AQST) United States $0.423B 0.00
Rigel Pharmaceuticals (RIGL) United States $0.377B 10.18
Altimmune (ALT) United States $0.348B 0.00
Tonix Pharmaceuticals Holding (TNXP) United States $0.335B 0.00
Aldeyra Therapeutics (ALDX) United States $0.331B 0.00
AleAnna (ANNA) United States $0.319B 0.00
Nektar Therapeutics (NKTR) United States $0.310B 0.00
Heron Therapeutics (HRTX) United States $0.299B 0.00
Nature's Sunshine Products (NATR) United States $0.281B 25.78
Nanobiotix S.A (NBTX) France $0.273B 0.00
Esperion Therapeutics (ESPR) United States $0.264B 0.00
OmniAb (OABI) United States $0.263B 0.00
Larimar Therapeutics (LRMR) United States $0.241B 0.00
MediWound (MDWD) Israel $0.227B 0.00
4D Molecular Therapeutics (FDMT) United States $0.218B 0.00
China SXT Pharmaceuticals (SXTC) China $0.196B 0.00
Aclaris Therapeutics (ACRS) United States $0.182B 0.00
Galectin Therapeutics (GALT) United States $0.178B 0.00
Profound Medical (PROF) Canada $0.175B 0.00
Journey Medical (DERM) United States $0.172B 0.00
Liminatus Pharma (LIMN) United States $0.168B 0.00
Avita Medical (RCEL) United States $0.165B 0.00
Lyell Immunopharma (LYEL) United States $0.163B 0.00
Korro Bio (KRRO) United States $0.158B 0.00
Inhibikase Therapeutics (IKT) United States $0.147B 0.00
Ironwood Pharmaceuticals (IRWD) United States $0.140B 0.00
Protara Therapeutics (TARA) United States $0.131B 0.00
Cassava Sciences (SAVA) United States $0.130B 0.00
Lexeo Therapeutics (LXEO) United States $0.129B 0.00
Cardiol Therapeutics (CRDL) Canada $0.119B 0.00
Innate Pharma SA (IPHYF) France $0.110B 0.00
Corbus Pharmaceuticals Holdings (CRBP) United States $0.108B 0.00
Champions Oncology (CSBR) United States $0.107B 24.22
Nutriband (NTRB) United States $0.096B 0.00
VAXART, INC (VXRT) United States $0.096B 0.00
Achieve Life Sciences (ACHV) Canada $0.095B 0.00
Fractyl Health (GUTS) United States $0.094B 0.00
Vivani Medical (VANI) United States $0.093B 0.00
Metagenomi (MGX) United States $0.089B 0.00
Arch Biopartners (ACHFF) Canada $0.084B 0.00
ESSA Pharma (EPIX) Canada $0.083B 0.00
Inotiv (NOTV) United States $0.077B 0.00
Wellgistics Health (WGRX) United States $0.076B 0.00
Rafael Holdings (RFL) United States $0.075B 0.00
Dominari Holdings (DOMH) United States $0.075B 0.00
Context Therapeutics (CNTX) United States $0.074B 0.00
Surrozen (SRZN) United States $0.074B 0.00
Assertio Holdings (ASRT) United States $0.074B 0.00
Pyxis Oncology (PYXS) United States $0.073B 0.00
Avalo Therapeutics (AVTX) United States $0.072B 0.00
PMV Pharmaceuticals (PMVP) United States $0.070B 0.00
Verrica Pharmaceuticals (VRCA) United States $0.065B 0.00
Telomir Pharmaceuticals (TELO) United States $0.061B 0.00
Allergy Therapeutics (AGYTF) United Kingdom $0.059B 0.00
Klotho Neurosciences (KLTO) United States $0.058B 0.00
Unicycive Therapeutics (UNCY) United States $0.058B 0.00
Jupiter Neurosciences (JUNS) United States $0.057B 0.00
Century Therapeutics (IPSC) United States $0.055B 0.00
ElectroCore (ECOR) United States $0.055B 0.00
Cumberland Pharmaceuticals (CPIX) United States $0.053B 39.56
NRx Pharmaceuticals (NRXP) United States $0.052B 0.00
Prelude Therapeutics (PRLD) United States $0.051B 0.00
Gain Therapeutics (GANX) United States $0.051B 0.00
Acrivon Therapeutics (ACRV) United States $0.045B 0.00
Mural Oncology (MURA) Ireland $0.043B 0.00
Karyopharm Therapeutics (KPTI) United States $0.042B 0.00
PolyPid (PYPD) Israel $0.038B 0.00
Iterum Therapeutics (ITRM) Ireland $0.033B 0.00
Vivos Therapeutics (VVOS) United States $0.033B 0.00
FibroGen (FGEN) United States $0.031B 0.00
Incannex Healthcare (IXHL) Australia $0.030B 0.00
Plus Therapeutics (PSTV) United States $0.030B 0.00
SCYNEXIS (SCYX) United States $0.029B 0.00
Scienture Holdings (SCNX) United States $0.028B 0.00
Enlivex Therapeutics (ENLV) Israel $0.028B 0.00
Relmada Therapeutics (RLMD) United States $0.024B 0.00
Tempest Therapeutics (TPST) United States $0.023B 0.00
Natural Alternatives (NAII) United States $0.023B 0.00
VYNE Therapeutics (VYNE) United States $0.022B 0.00
Reviva Pharmaceuticals Holdings (RVPH) United States $0.020B 0.00
BioLineRx (BLRX) Israel $0.019B 0.00
DURECT (DRRX) United States $0.018B 0.00
MARKER THERAPEUTICS, INC (MRKR) United States $0.018B 0.00
Citius Pharmaceuticals (CTXR) United States $0.018B 0.00
Lipocine (LPCN) United States $0.018B 0.00
CASI Pharmaceuticals (CASI) China $0.017B 0.00
Carisma Therapeutics (CARM) United States $0.016B 0.00
Ernexa Therapeutics (ERNA) United States $0.016B 0.00
Mannatech (MTEX) United States $0.016B 0.00
BioVie (BIVI) United States $0.015B 0.00
Cosmos Health (COSM) United States $0.014B 0.00
Minerva Neurosciences (NERV) United States $0.014B 2.44
TherapeuticsMD (TXMD) United States $0.014B 0.00
Phio Pharmaceuticals (PHIO) United States $0.012B 0.00
Ainos (AIMD) United States $0.011B 0.00
Lyra Therapeutics (LYRA) United States $0.011B 0.00
Aptorum Group (APM) United Kingdom $0.010B 0.00
XTL Biopharmaceuticals (XTLB) Israel $0.010B 0.00
Kiora Pharmaceuticals (KPRX) United States $0.009B 0.00
TransCode Therapeutics (RNAZ) United States $0.009B 0.00
Traws Pharma (TRAW) United States $0.009B 0.00
Biomerica (BMRA) United States $0.009B 0.00
Talphera (TLPH) United States $0.009B 0.00
Addex Therapeutics (ADXN) Switzerland $0.009B 0.00
Mangoceuticals (MGRX) United States $0.009B 0.00
NLS Pharmaceutics (NLSP) Switzerland $0.008B 0.00
Nuvilex (PMCB) United States $0.007B 0.00
Sonoma Pharmaceuticals (SNOA) United States $0.006B 0.00
Indaptus Therapeutics (INDP) United States $0.006B 0.00
Xenetic Biosciences (XBIO) United States $0.006B 0.00
InMed Pharmaceuticals (INM) Canada $0.005B 0.00
Alaunos Therapeutics (TCRT) United States $0.005B 0.00
Quoin Pharmaceuticals (QNRX) United States $0.005B 0.00
Clearmind Medicine (CMND) Canada $0.005B 0.00
Qualigen Therapeutics (QLGN) United States $0.005B 0.00
Redhill Biopharma (RDHL) Israel $0.005B 0.00
SciSparc (SPRC) Israel $0.004B 0.00
SHINECO (SISI) China $0.004B 0.00
XORTX Therapeutics (XRTX) Canada $0.003B 0.00
CERo Therapeutics Holdings (CERO) United States $0.003B 0.00
Galmed Pharmaceuticals (GLMD) Israel $0.003B 0.00
PainReform (PRFX) Israel $0.003B 0.00
Heatwurx (PCSA) United States $0.003B 0.00
Aditxt (ADTX) United States $0.003B 0.00
Jaguar Animal Health (JAGX) United States $0.002B 0.00
60 Degrees Pharmaceuticals (SXTP) United States $0.002B 0.00
Shuttle Pharmaceuticals Holdings (SHPH) United States $0.002B 0.00
Conduit Pharmaceuticals (CDT) United States $0.002B 0.00
TNF Pharmaceuticals (TNFA) United States $0.002B 0.00
Salarius Pharmaceuticals (SLRX) United States $0.001B 0.00
Universe Pharmaceuticals INC (UPC) China $0.000B 0.00
Indivior (INDV) United States $0.000B 9.91
4D Pharma (LBPS) United Kingdom $0.000B 0.00
MEI Pharma (MEIP) United States $0.000B 0.00
Patheon (PTHN) Netherlands $0.000B 0.00
RVL Pharmaceuticals (RVLP) United States $0.000B 0.00
Silence Therapeutics (SLN) United Kingdom $0.000B 0.00