| ASND | Ascendis Pharma A/S - Ordinary Share | | |
| ASO | Academy Sports and Outdoors, Inc. - Common Stock | | |
| ASPC | A SPAC III Acquisition Corp. - Class A Ordinary Shares | D | |
| ASPCR | A SPAC III Acquisition Corp. - Right | D | |
| ASPCU | A SPAC III Acquisition Corp. - Unit | D | |
| ASPI | ASP Isotopes Inc. - Common Stock | | |
| ASPS | Altisource Portfolio Solutions S.A. - Common Stock | | |
| ASPSW | Altisource Portfolio Solutions S.A. - Net Settle Stakeholder Warrants | | |
| ASPSZ | Altisource Portfolio Solutions S.A. - Cash Exercise Stakeholder Warrants | | |
| ASRV | AmeriServ Financial Inc. - Common Stock | | |
| ASST | Strive, Inc. - Class A Common Stock | | |
| ASTC | Astrotech Corporation - Common Stock | | |
| ASTE | Astec Industries, Inc. - Common Stock | | |
| ASTH | Astrana Health Inc. - Common Stock | | |
| ASTI | Ascent Solar Technologies, Inc - Common Stock | | |
| ASTL | Algoma Steel Group Inc. - Common Shares | | |
| ASTS | AST SpaceMobile, Inc. - Class A Common Stock | | |
| ASUR | Asure Software Inc - Common Stock | | |
| ASYS | Amtech Systems, Inc. - Common Stock | | |
| ATAT | Atour Lifestyle Holdings Limited - American Depositary Shares | | |
| ATCX | Atlas Critical Minerals Corporation - Common Stock | | |
| ATEC | Alphatec Holdings, Inc. - Common Stock | | |
| ATER | Aterian, Inc. - Common Stock | D | |
| ATEX | Anterix Inc. - Common Stock | | |
| ATGL | Alpha Technology Group Limited - Class A Ordinary Shares | | |
| ATHE | Alterity Therapeutics Limited - American Depositary Shares | | |
| ATHR | Aether Holdings, Inc. - Common Stock | D | |
| ATLC | Atlanticus Holdings Corporation - Common Stock | | |
| ATLCL | Atlanticus Holdings Corporation - 6.125% Senior Notes due 2026 | | |
| ATLCP | Atlanticus Holdings Corporation - 7.625% Series B Cumulative Perpetual Preferred Stock, no par value per share | | |
| ATLCZ | Atlanticus Holdings Corporation - 9.25% Senior Notes due 2029 | | |
| ATLO | Ames National Corporation - Common Stock | | |
| ATLQ | JAB Acquisition Corp I - Class A Ordinary Shares | | |
| ATLQR | JAB Acquisition Corp I - Rights | | |
| ATLQU | JAB Acquisition Corp I - Units | | |
| ATLQW | JAB Acquisition Corp I - Warrants | | |
| ATLX | Atlas Lithium Corporation - Common Stock | | |
| ATNI | ATN International, Inc. - Common Stock | | |
| ATOM | Atomera Incorporated - Common Stock | | |
| ATOS | Atossa Therapeutics, Inc. - Common Stock | | |
| ATPC | Agape ATP Corporation - Common Stock | | |
| ATRA | Atara Biotherapeutics, Inc. - Common Stock | | |
| ATRC | AtriCure, Inc. - Common Stock | | |
| ATRO | Astronics Corporation - Common Stock | | |
| ATTO | Attovia Therapeutics, Inc. - Common Stock | | |
| ATTT | Atlas Trinity Tech Limited - Ordinary Shares | | |
| ATXG | Addentax Group Corp. - Common Stock | | |
| ATYR | aTyr Pharma, Inc. - Common Stock | D | |
| AUBN | Auburn National Bancorporation, Inc. - Common Stock | | |
| AUC | ATIF Holdings Limited - Ordinary Shares | | |