FIVE9 INC

CUSIP: 338307AF8 Class: Convertible Debt

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q4 2025
Shares 12,805,000 Value ($000) $11,557 Avg Close — Range —
Q3 2025
Shares 13,345,000 Value ($000) $11,857 Avg Close — Range —
Q2 2025
Shares 12,970,000 Value ($000) $11,368 Avg Close — Range —
Q1 2025
Shares 12,970,000 Value ($000) $11,109 Avg Close — Range —