HUMANIGEN INC

CUSIP: 444863203 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2022
Shares 25,000 Value ($000) $75 Avg Close — Range —
Q4 2021
Shares 25,000 Value ($000) $93 Avg Close — Range —
Q3 2021
Shares 25,000 Value ($000) $148 Avg Close — Range —
Q2 2021
Shares 32,400 Value ($000) $563 Avg Close — Range —