| ACIU |
AC Immune SA |
| ACIA |
Acacia Communications, Inc. |
| ACTG |
Acacia Research Corporation |
| ACHC |
Acadia Healthcare Company, Inc. |
| ACAD |
ACADIA Pharmaceuticals Inc. |
| ACST |
Acasti Pharma, Inc. |
| AXDX |
Accelerate Diagnostics, Inc. |
| XLRN |
Acceleron Pharma Inc. |
| ANCX |
Access National Corporation |
| ARAY |
Accuray Incorporated |
| ACRX |
AcelRx Pharmaceuticals, Inc. |
| ACER |
Acer Therapeutics Inc. |
| ACERW |
Acer Therapeutics Inc. |
| ACET |
Aceto Corporation |
| AKAO |
Achaogen, Inc. |
| ACHV |
Achieve Life Sciences, Inc. |
| ACHN |
Achillion Pharmaceuticals, Inc. |
| ACIW |
ACI Worldwide, Inc. |
| ACRS |
Aclaris Therapeutics, Inc. |
| ACMR |
ACM Research, Inc. |
