CONCERT PHARMACEUTICALS INC

CUSIP: 206022105 Class: COM

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

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

Q1 2021
Shares 40,300 Value ($000) $201 Avg Close — Range —
Q4 2020
Shares 40,300 Value ($000) $509 Avg Close — Range —
Q3 2020
Shares 40,300 Value ($000) $396 Avg Close — Range —
Q2 2020
Shares 40,300 Value ($000) $401 Avg Close — Range —
Q1 2020
Shares 36,000 Value ($000) $318 Avg Close — Range —
Q4 2019
Shares 36,000 Value ($000) $332 Avg Close — Range —
Q3 2019
Shares 36,000 Value ($000) $212 Avg Close — Range —
Q2 2019
Shares 36,000 Value ($000) $432 Avg Close — Range —
Q1 2019
Shares 27,300 Value ($000) $330 Avg Close — Range —
Q4 2018
Shares 25,400 Value ($000) $319 Avg Close — Range —
Q3 2018
Shares 23,300 Value ($000) $346 Avg Close — Range —
Q2 2018
Shares 22,100 Value ($000) $372 Avg Close — Range —
Q1 2018
Shares 17,700 Value ($000) $405 Avg Close — Range —
Q4 2017
Shares 13,800 Value ($000) $357 Avg Close — Range —
Q3 2017
Shares 12,500 Value ($000) $184 Avg Close — Range —
Q2 2017
Shares 12,500 Value ($000) $174 Avg Close — Range —