B RILEY PRINCIPAL 150 MERGER

CUSIP: 05601V111 Class: *W EXP 03/01/202

Nantahala Capital Management, LLC's Holding History (CIK: 0001472322)

Note: Option positions (PUT/CALL) are excluded.

Q2 2022
Shares 185,653 Value ($000) $69 Avg Close — Range —
Q1 2022
Shares 120,686 Value ($000) $109 Avg Close — Range —
Q4 2021
Shares 124,997 Value ($000) $181 Avg Close — Range —