Here is the sector-by-sector list of stocks moving lower in today's pre-market session:

Healthcare

• Sun BioPharma SNBP shares sank 66.0% to $3.23 during Monday's pre-market session. The market value of their outstanding shares is at $21.4 million.
• Aquestive Therapeutics AQST shares decreased by 31.67% to $5.2. The market cap stands at $174.6 million.
• Inovio Pharmaceuticals INO stock decreased by 31.47% to $11.61. The market cap stands at $1.8 billion. Eiger BioPharmaceuticals EIGR stock sank 9.0% to $9.0. The market cap stands at $225.5 million.
• TG Therapeutics TGTX shares fell 7.81% to $22.79. The market cap stands at $2.6 billion.

Industrials

• CBAK Energy Technology CBAT shares declined by 17.96% to $2.01 during Monday's pre-market session. The market value of their outstanding shares is at $108.0 million.
• TAT Technologies TATT stock declined by 11.52% to $5.15. The market cap stands at $45.7 million. Professional Diversity IPDN stock decreased by 11.29% to $1.1. The market cap stands at $12.0 million. SG Blocks SGBX stock declined by 9.22% to $1.97. The market value of their outstanding shares is at $16.7 million.
• Polar Power POLA shares fell 8.71% to $2.83. The market value of their outstanding shares is at $28.6 million.

Communication Services

• Urban One UONEK stock decreased by 13.94% to $1.42 during Monday's pre-market session. The market cap stands at $64.5 million.
• The9 NCTY stock fell 13.88% to $0.66. The market value of their outstanding shares is at $27.5 million. Salem Media Group SALM shares fell 8.58% to $0.96. The market value of their outstanding shares is at $25.6 million.
• Genius Brands Intl GNUS shares decreased by 4.01% to $1.2. The market value of their outstanding shares is at $115.6 million.
• Liberty Latin America LILA stock sank 3.19% to $7.6. The market value of their outstanding shares is at $1.3 billion.

Financial Services

• Senmiao Technology AIHS stock decreased by 19.42% to $0.6 during Monday's pre-market session. The market cap stands at $17.3 million.
• Broadway Financial BYFC stock declined by 15.39% to $1.76. The market cap stands at $49.3 million. Carver Bancorp CARV shares sank 12.96% to $6.25. The market cap stands at $23.1 million.
• AMCI Acquisition AMCI shares sank 3.43% to $10.03. The market cap stands at $276.5 million.