MetaCap

Atossa Therapeutics (ATOS) vs Immutep (IMMP)

Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.

Summary

Immutep (IMMP) has outperformed Atossa Therapeutics (ATOS) over the past year, gaining 90.1% versus a loss of 85.5%. Over five years, IMMP leads with a -2.8% price change compared with -94.4% for ATOS. Immutep is the larger company by market cap ($26.3 million vs $24.7 million), about 1.1 times the size.

Summary generated from market data by MetaCap's automated system. Methodology

Relative performance

ATOS-85.47%IMMP+90.10%
+305%+98%-108%
Oct 8, 20251 yearOct 8, 2026
ATOS-94.93%IMMP+0.52%
+114%+4%-106%
Oct 4, 20215 yearsOct 5, 2026

Percent change in share price from the first common trading day shown; excludes dividends.

Head-to-head

ATOS versus IMMP key metrics
MetricATOSIMMP
Share price$2.47$3.57
Market cap$24.68M$26.31M
1-day change+2.19%-7.03%
YTD return-72.66%+34.27%
1-year return-85.47%+90.10%
5-year return-94.36%-2.78%
EPS (TTM)$-4.45$-7.30
Dividend yield0.00%0.00%
Annual dividend$0.00$0.00
52-week high$18.00$70.60
52-week low$1.70$3.55
Distance from 52-week high-86.26%-94.94%
Analyst consensusstrong_buynone
Avg. price target upside+668.27%+740.34%
Average volume63.48K14.85K
Shares outstanding9.98M7.37M
Employees16—
SectorHealth CareHealth Care
IndustryBiotechnology: Pharmaceutical PreparationsBiotechnology: Pharmaceutical Preparations

Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.

Key differences

  • IMMP has outperformed ATOS by 175.6 percentage points over the past year.

About Atossa Therapeutics

ATOS stock →

Atossa Therapeutics, Inc., a clinical-stage biopharmaceutical company, develops medicines in areas of significant unmet medical need in oncology in the United States. Its lead drug candidate is oral (Z)-endoxifen, a selective estrogen receptor modulator and selective estrogen receptor degrader currently in Phase 2 clinical development for the treatment and reduction of risk of breast cancer, as well as in other therapeutic areas.

Health Care · Biotechnology: Pharmaceutical Preparations · 16 employees

About Immutep

IMMP stock →

Immutep Limited, a clinical-stage biotechnology company, develops lymphocyte activation gene-3 (LAG-3) related immunotherapies for cancer and autoimmune diseases in Australia. The company's lead product candidate is the eftilagimod alfa (efti or IMP321), a soluble LAG-3lg fusion based on the LAG-3 immune control mechanism for the treatment of cancer.

Health Care · Biotechnology: Pharmaceutical Preparations

ATOS vs IMMP FAQ

Which is bigger, Atossa Therapeutics or Immutep?

Immutep (IMMP) is larger, with a market capitalization of $26.31M compared with $24.68M for Atossa Therapeutics (ATOS).

Which stock has performed better over the past year, ATOS or IMMP?

IMMP returned +90.10% over the past 12 months, compared with -85.47% for ATOS (price return, excluding dividends). Past performance does not predict future results.

Are Atossa Therapeutics and Immutep in the same industry?

Yes. Both are classified in the Biotechnology: Pharmaceutical Preparations industry within the Health Care sector.

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