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Micro Cap Biotechnology
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
BDTX icon
76
Black Diamond Therapeutics
BDTX
$105M
$105M $1.83 3.98%
SEER icon
77
Seer Inc
SEER
$104M
$104M $1.89 4.06%
PLYX
78
Polaryx Therapeutics Inc
PLYX
$103M
$103M $2.07 0.98%
COYA icon
79
Coya Therapeutics
COYA
$103M
$103M $4.37 2.82%
ICCC icon
80
ImmuCell
ICCC
$99.9M
$99.9M $11.04 0.09%
ONCY
81
Oncolytics Biotech
ONCY
$97.8M
$97.8M $0.8190 0.84%
RANI icon
82
Rani Therapeutics
RANI
$97.7M
$97.7M $0.8690 2.13%
ALDX icon
83
Aldeyra Therapeutics
ALDX
$97.1M
$97.1M $1.61 5.92%
BMEA icon
84
Biomea Fusion
BMEA
$94M
$94M $1.30 4%
VRCA icon
85
Verrica Pharmaceuticals
VRCA
$91.7M
$91.7M $5.34 6.37%
HRTX icon
86
Heron Therapeutics
HRTX
$90.9M
$90.9M $0.4802 5.35%
NTHI
87
NeOnc Technologies
NTHI
$90.2M
$90.2M $3.48 1.46%
KLRS
88
Kalaris Therapeutics
KLRS
$88M
$88M $3.70 0.8%
RLYB icon
89
Rallybio
RLYB
$87.2M
$87.2M $16.44 0.8%
CGTX icon
90
Cognition Therapeutics
CGTX
$85.6M
$85.6M $0.9564 4.01%
CSBR icon
91
Champions Oncology
CSBR
$85.1M
$85.1M $6.13 0%
ATHE
92
Alterity Therapeutics
ATHE
$82.3M
$82.3M $4.54 0%
INO icon
93
Inovio Pharmaceuticals
INO
$81.9M
$81.9M $0.9950 2.57%
OKYO
94
OKYO Pharma
OKYO
$80.3M
$80.3M $1.53 1.29%
ELTX icon
95
Elicio Therapeutics
ELTX
$79.8M
$79.8M $3.04 1.33%
TELO icon
96
Telomir Pharmaceuticals
TELO
$79.1M
$79.1M $1.15 0%
GNTA
97
Genenta Science
GNTA
$78.6M
$78.6M $1.63 2.52%
ALPS
98
ALPS Group Inc
ALPS
$78.2M
$78.2M $0.4700 0.82%
GANX icon
99
Gain Therapeutics
GANX
$78.1M
$78.1M $1.83 4.57%
GOSS icon
100
Gossamer Bio
GOSS
$77.2M
$77.2M $0.1579 16.1%
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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 280 micro cap Biotechnology stocks — companies in the Biotechnology industry with a market cap under $250M — worth a combined $19.6B.

The largest by market cap are ProQR Therapeutics (PRQR) at $248M, MacroGenics (MGNX) at $247M and Cartesian Therapeutics (RNAC) at $242M.

Among institutional investors, Atrium Therapeutics (RNA) drew the most net new fund positions in Q1 2026: 162 funds opened new positions.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q1 2026.