Notable Holders of (ATRA)
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Expand Research on ATRA
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* Does Not Fully Represent All Holders
| Fund | Title | Shares | % Owned | Source |
|---|---|---|---|---|
| Baupost Group | COM | 9,773,616 | N/A | 13F |
| WASATCH ADVISORS INC | COM | 8,283,981 | N/A | 13F |
| VANGUARD GROUP INC | COM | 6,946,331 | N/A | 13F |
| Maverick Capital | COM | 6,290,713 | N/A | 13F |
| Redmile Group, LLC | COM | 6,048,123 | N/A | 13F |
| D. E. Shaw & Co., INC. | COM | 4,349,328 | N/A | 13F |
| RENAISSANCE TECHNOLOGIES LLC | COM | 2,116,900 | N/A | 13F |
| GEODE CAPITAL MANAGEMENT LLC | COM | 2,031,553 | N/A | 13F |
| KPCB XV Associates, LLC | Common Stock | 1,876,650 | N/A | 13F |
| MILLENNIUM MANAGEMENT LLC | COM | 1,564,564 | N/A | 13F |
| BlackRock Fund Advisors | COM | 1,111,507 | N/A | 13F |
| Antipodean Advisors LLC | COM | 1,000,000 | N/A | 13F |
| 683 Capital Management, LLC | COM | 1,000,000 | N/A | 13F |
| STALEY CAPITAL ADVISERS INC | COM | 750,000 | N/A | 13F |
| ACADIAN ASSET MANAGEMENT LLC | COM | 704,694 | N/A | 13F |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | COM | 700,035 | N/A | 13F |
| DIMENSIONAL FUND ADVISORS LP | COM | 655,773 | N/A | 13F |
| JACOBS LEVY EQUITY MANAGEMENT INC | COM | 566,896 | N/A | 13F |
| PACIFIC HEIGHTS ASSET MANAGEMENT LLC | COM | 525,000 | N/A | 13F |
| BlackRock Institutional Trust Company, N.A. | COM | 506,378 | N/A | 13F |
| GROUP ONE TRADING, L.P. (CALL) | COM | 418,800 | N/A | 13F |
| ExodusPoint Capital Management, LP | COM | 417,882 | N/A | 13F |
| PINNACLE ASSOCIATES LTD | COM | 395,594 | N/A | 13F |
| DEUTSCHE BANK AG\ | COM | 388,384 | N/A | 13F |
| Marshall Wace North America, L.P. | COMMON STOCK | 368,531 | N/A | 13F |
| Fidelity Investments | COM | 223,707 | N/A | 13F |
| Cubist Systematic Strategies, LLC | COM | 204,350 | N/A | 13F |
| JOSH ARNOLD INVESTMENT CONSULTANT, LLC | COM | 200,000 | N/A | 13F |
| RAYMOND JAMES & ASSOCIATES | COM | 187,345 | N/A | 13F |
| Hennion & Walsh Asset Management, Inc. | COM | 179,137 | N/A | 13F |
| BP WEALTH MANAGEMENT, LLC | COM | 176,867 | N/A | 13F |
| HRT FINANCIAL LLC | COM | 161,929 | N/A | 13F |
| Susquehanna International Group, LLP | COM | 157,150 | N/A | 13F |
| RHUMBLINE ADVISERS | COM | 142,773 | N/A | 13F |
| XTX Topco Ltd | COM | 136,841 | N/A | 13F |
| Citadel | COM | 134,743 | N/A | 13F |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | COM | 121,000 | N/A | 13F |
| CORNERCAP INVESTMENT COUNSEL INC | COM | 116,159 | N/A | 13F |
| UBS GLOBAL ASSET MANAGEMENT AMERICAS INC | EQUITY US CM | 108,004 | N/A | 13F |
| Squarepoint Ops LLC | COM | 106,781 | N/A | 13F |
| TEACHERS ADVISORS INC | CS | 103,649 | N/A | 13F |
| ING INVESTMENT MANAGEMENT LLC | COM | 101,713 | N/A | 13F |
| LEGAL & GENERAL GROUP PLC | COM | 101,098 | N/A | 13F |
| Y-Intercept (Hong Kong) Ltd | COM | 99,685 | N/A | 13F |
| B. Metzler seel. Sohn & Co. AG | COM | 98,564 | N/A | 13F |
| BlackRock Investment Management, LLC | COM | 92,922 | N/A | 13F |
| TIAA CREF INVESTMENT MANAGEMENT LLC | CS | 89,778 | N/A | 13F |
| BNP PARIBAS ARBITRAGE, SA | Equity | 75,640 | N/A | 13F |
| Allspring Global Investments Holdings, LLC | COM | 66,404 | N/A | 13F |
| Nuveen Asset Management, LLC | COM | 63,720 | N/A | 13F |
| Private Advisor Group, LLC | COM | 62,400 | N/A | 13F |
| Marshall Wace LLP | COMMON STOCK | 62,180 | N/A | 13F |
| Graham Capital Management, L.P. | COM | 62,017 | N/A | 13F |
| JEFFERIES GROUP INC /DE/ | COM | 58,984 | N/A | 13F |
| CAXTON ASSOCIATES LP | COM | 56,151 | N/A | 13F |
| Rockefeller Capital Management L.P. | COM | 53,936 | N/A | 13F |
| AQR CAPITAL MANAGEMENT LLC | COM | 50,964 | N/A | 13F |
| HARBOR CAPITAL ADVISORS, INC. | COM | 50,076 | N/A | 13F |
| MetLife Investment Advisors, LLC | COM | 49,730 | N/A | 13F |
| SIMPLEX TRADING, LLC | COM | 45,264 | N/A | 13F |
| STATE OF WISCONSIN INVESTMENT BOARD | COM | 45,201 | N/A | 13F |
| MANUFACTURERES LIFE INSURANCE CO | COM | 43,086 | N/A | 13F |
| NEW YORK STATE COMMON RETIREMENT FUND | Common Stock | 39,370 | N/A | 13F |
| Qube Research & Technologies Ltd | COM | 34,908 | N/A | 13F |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | COMMON STOCK | 31,776 | N/A | 13F |
| PARAMETRIC PORTFOLIO ASSOCIATES | Common Stock | 31,731 | N/A | 13F |
| JustInvest LLC | COM | 31,423 | N/A | 13F |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | COM | 31,145 | N/A | 13F |
| ENVESTNET ASSET MANAGEMENT INC | COM | 29,585 | N/A | 13F |
| Centiva Capital, LP | COM | 29,143 | N/A | 13F |
| Leap Investments LP | Common Stock | 27,600 | N/A | 13F |
| Tower Research Capital LLC | COM | 26,669 | N/A | 13F |
| Aperio Group, LLC | COM | 25,896 | N/A | 13F |
| Point72 Middle East FZE | COM | 25,351 | N/A | 13F |
| TEACHER RETIREMENT SYSTEM OF TEXAS | COM | 24,844 | N/A | 13F |
| JANE STREET GROUP, LLC | COM | 23,404 | N/A | 13F |
| Cutler Group LP (CALL) | Call | 23,100 | N/A | 13F |
| OPPENHEIMER & CO INC | COM | 22,575 | N/A | 13F |
| Ergoteles LLC | COM | 20,326 | N/A | 13F |
| PITCAIRN CO | COM | 19,363 | N/A | 13F |
| ProShare Advisors LLC | COM | 18,763 | N/A | 13F |
| CAPTRUST FINANCIAL ADVISORS | Stock | 18,015 | N/A | 13F |
| LETKO, BROSSEAU & ASSOCIATES INC | COM | 17,500 | N/A | 13F |
| TWO SIGMA INVESTMENTS LLC | COM | 15,261 | N/A | 13F |
| DIMENSION CAPITAL MANAGEMENT PARTNERS | COM | 14,000 | N/A | 13F |
| Wealth Architects, LLC | COM | 13,277 | N/A | 13F |
| Belvedere Trading LLC | COM | 12,913 | N/A | 13F |
| BLACKROCK ADVISORS LLC | COM | 11,615 | N/A | 13F |
| LAKE STREET ADVISORS GROUP, LLC | COM | 11,560 | N/A | 13F |
| Amalgamated Financial Corp. | COM | 10,796 | N/A | 13F |
| Virtu Financial LLC | COM | 10,327 | N/A | 13F |
| AMALGAMATED BANK | COM | 10,288 | N/A | 13F |
| VICTORY CAPITAL MANAGEMENT INC | COM | 10,084 | N/A | 13F |
| Summit Investment Advisors, Inc. | COM | 6,782 | N/A | 13F |
| LAZARD ASSET MANAGEMENT LLC | Common Stock | 6,776 | N/A | 13F |
| BlackRock Group LTD | COM | 5,994 | N/A | 13F |
| Russell Investments Group, Ltd. | Common Stock | 5,711 | N/A | 13F |
| American Portfolios Advisors | COM | 4,500 | N/A | 13F |
| Quantbot Technologies LLC | COM | 3,900 | N/A | 13F |
| WIPFLI FINANCIAL ADVISORS LLC, | COM | 3,079 | N/A | 13F |
| SIGNATUREFD, LLC | COM | 2,400 | N/A | 13F |
| IFP Advisors, Inc | cs | 2,400 | N/A | 13F |
| China Universal Asset Management Co., Ltd. | Common Stock | 1,284 | N/A | 13F |
| ACT CAPITAL MANAGEMENT, LLC | COM | 900 | N/A | 13F |
| NISA INVESTMENT ADVISORS L L C | COM | 720 | N/A | 13F |
| NEXT Financial Group, Inc | COM | 685 | N/A | 13F |
| Advisor Group, Inc. | COM | 310 | N/A | 13F |
| CWM, LLC | COM | 133 | N/A | 13F |
| CARY STREET PARTNER INVESTMENT ADVISORY LLC | Stock | 66 | N/A | 13F |
| LADENBURG THALMANN FINANCIAL SERVICES INC | COM | 41 | N/A | 13F |
