ALLEGRO MERGER CORP

CUSIP: 01749N103 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q1 2020
Shares 1,184,800 Value ($000) $13,554,000 Avg Close — Range —
Q4 2019
Shares 434,800 Value ($000) $4,446,000 Avg Close — Range —