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Micro Cap Biotechnology
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
PLYX
76
Polaryx Therapeutics Inc
PLYX
$105M
$105M $2.10 1.87%
PMN icon
77
ProMIS Neurosciences
PMN
$102M
$102M $11.38 1.64%
BMEA icon
78
Biomea Fusion
BMEA
$99.3M
$99.3M $1.37 8.05%
NTHI
79
NeOnc Technologies
NTHI
$99.1M
$99.1M $3.44 4.24%
CRDF icon
80
Cardiff Oncology
CRDF
$97.2M
$97.2M $1.25 2.34%
MIST icon
81
Milestone Pharmaceuticals
MIST
$95.6M
$95.6M $0.7680 3.38%
ANIX icon
82
Anixa Biosciences
ANIX
$94.9M
$94.9M $2.73 1.8%
NTRB icon
83
Nutriband
NTRB
$94.2M
$94.2M $7.75 13.8%
ACRV icon
84
Acrivon Therapeutics
ACRV
$90.4M
$90.4M $2.11 0.47%
CGTX icon
85
Cognition Therapeutics
CGTX
$90.3M
$90.3M $0.9492 0.17%
ICCC icon
86
ImmuCell
ICCC
$90.1M
$90.1M $9.92 0.5%
RLYB icon
87
Rallybio
RLYB
$89.7M
$89.7M $16.89 1.69%
ONCY
88
Oncolytics Biotech
ONCY
$87.4M
$87.4M $0.6858 0.97%
ATRA icon
89
Atara Biotherapeutics
ATRA
$87.4M
$87.4M $8.71 1.99%
RANI icon
90
Rani Therapeutics
RANI
$86.6M
$86.6M $0.7505 0.2%
TELO icon
91
Telomir Pharmaceuticals
TELO
$84.6M
$84.6M $1.23 1.65%
ACET icon
92
Adicet Bio
ACET
$83.1M
$83.1M $8.88 7.38%
GANX icon
93
Gain Therapeutics
GANX
$78.6M
$78.6M $1.80 2.17%
IBIO icon
94
iBio
IBIO
$77.2M
$77.2M $1.20 0%
FBIO icon
95
Fortress Biotech
FBIO
$77M
$77M $2.31 1.32%
RNXT icon
96
RenovoRx
RNXT
$76.3M
$76.3M $1.69 0.6%
VRCA icon
97
Verrica Pharmaceuticals
VRCA
$75.9M
$75.9M $4.42 1.38%
ALDX icon
98
Aldeyra Therapeutics
ALDX
$74.2M
$74.2M $1.23 0.82%
GUTS icon
99
Fractyl Health
GUTS
$73.8M
$73.8M $0.4636 1.34%
CING icon
100
Cingulate
CING
$73.1M
$73.1M $5.03 0.59%
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Micro Cap Biotechnology Stocks at a Glance

Biotechnology companies research and develop novel drugs and therapies, often with no products yet on the market. Clinical-trial readouts and regulatory decisions drive binary stock moves, making pipeline breadth, cash runway, and partnership deals the key variables.

There are 276 micro cap Biotechnology stocks — companies in the Biotechnology industry with a market cap under $250M — worth a combined $18.9B.

The largest by market cap are Lyell Immunopharma (LYEL) at $242M, Cue Biopharma (CUE) at $242M and ProQR Therapeutics (PRQR) at $240M.

Among institutional investors, Eledon Pharmaceuticals (ELDN) drew the most net new fund positions in Q2 2026: 51 funds opened new positions, taking total fund holders up 40 (33%) quarter-over-quarter.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.