QUIDEL CORP

CUSIP: 74838J101 Class: COMMON STOCK

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q4 2020
Shares 1,292 Value ($000) $232 Avg Close — Range —
Q3 2020
Shares 1,292 Value ($000) $283 Avg Close — Range —
Q4 2018
Shares 37,122 Value ($000) $1,812 Avg Close — Range —
Q3 2018
Shares 35,785 Value ($000) $2,332 Avg Close — Range —
Q2 2018
Shares 34,591 Value ($000) $2,300 Avg Close — Range —