ADTRAN INC

CUSIP: 00738A106 Class: COMMON STOCK

Cornerstone Investment Partners, LLC's Holding History (CIK: 0001328062)

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

Q3 2021
Shares 15,076 Value ($000) $283 Avg Close — Range —
Q2 2021
Shares 18,576 Value ($000) $384 Avg Close — Range —
Q1 2021
Shares 18,576 Value ($000) $310 Avg Close — Range —
Q4 2020
Shares 18,576 Value ($000) $274 Avg Close — Range —
Q3 2020
Shares 18,576 Value ($000) $190 Avg Close — Range —
Q2 2020
Shares 18,576 Value ($000) $203 Avg Close — Range —
Q1 2020
Shares 20,971 Value ($000) $161 Avg Close — Range —