B RILEY PRINCIPAL 150 MERGER

CUSIP: 05601V202 Class: UNIT 99/99/9999

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

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

Q4 2021
Shares 9 Value ($000) $0 Avg Close — Range —
Q3 2021
Shares 375,000 Value ($000) $3,754 Avg Close — Range —
Q2 2021
Shares 375,000 Value ($000) $3,799 Avg Close — Range —
Q1 2021
Shares 375,000 Value ($000) $3,750 Avg Close — Range —