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ATHERSYS INC
ATHERSYS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 63 Institutional holders with a total value of $36,028,688.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 2,495,512 7,187,000 19.95%
2 PRUDENTIAL PLC 1,775,000 5,112,000 14.19%
3 GREAT POINT PARTNERS LLC 830,200 2,391,000 6.64% Call
4 First Eagle Investment Management, LLC 807,601 2,326,000 6.46%
5 SUSQUEHANNA INTERNATIONAL GROUP, LLP 806,100 2,322,000 6.44% Call
6 SUSQUEHANNA INTERNATIONAL GROUP, LLP 785,700 2,263,000 6.28% Put
7 MILLENNIUM MANAGEMENT LLC 667,200 1,922,000 5.33% Call
8 MORGAN STANLEY 561,818 1,619,000 4.49%
9 GEODE CAPITAL MANAGEMENT, LLC 433,808 1,249,000 3.47%
10 SUSQUEHANNA INTERNATIONAL GROUP, LLP 243,733 702,000 1.95%
11 GROUP ONE TRADING LLC 211,215 608,000 1.69%
12 BlackRock Fund Advisors 201,311 580,000 1.61%
13 BlackRock Institutional Trust Company, N.A. 192,054 553,000 1.53%
14 PACIFIC ALTERNATIVE ASSET MANAGEMENT COMPANY, LLC 183,500 528,000 1.47% Put
15 Altus Capital Inc. 157,000 452,000 1.25%
16 CREDIT SUISSE AG/ 142,816 411,000 1.14%
17 LADENBURG THALMANN FINANCIAL SERVICES INC. 137,023 395,000 1.10%
18 NORTHERN TRUST CORP 132,773 382,000 1.06%
19 BANK OF AMERICA CORP /DE/ 126,600 365,000 1.01%
20 NEXT Financial Group, Inc 124,000 357,000 0.99%
21 GOLDMAN SACHS GROUP INC 112,368 324,000 0.90%
22 GREAT POINT PARTNERS LLC 100,000 288,000 0.80% Put
23 ROYAL BANK OF CANADA 91,150 263,000 0.73%
24 CITADEL ADVISORS LLC 90,176 260,000 0.72%
25 VICTORY CAPITAL MANAGEMENT INC 88,865 256,000 0.71%
26 MILLENNIUM MANAGEMENT LLC 87,471 252,000 0.70%
27 PANAGORA ASSET MANAGEMENT INC 82,351 237,000 0.66%
28 Bank of New York Mellon Corp 80,022 230,000 0.64%
29 Commonwealth Equity Services, Inc 70,600 203,000 0.56%
30 BlueCrest Capital Management Ltd 68,764 198,000 0.55%
31 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 85,400 194,000 0.54%
32 A.R.T. Advisors, LLC 66,758 192,000 0.53%
33 STATE STREET CORP 51,500 148,000 0.41%
34 Winfield Associates, Inc. 48,750 140,000 0.39%
35 SIMPLEX TRADING, LLC 45,686 131,000 0.36%
36 PACIFIC ALTERNATIVE ASSET MANAGEMENT COMPANY, LLC 45,418 131,000 0.36%
37 Rotella Capital Management, Inc. 40,700 117,000 0.32%
38 First Eagle Investment Management, LLC 2,500 80,000 0.22% Call
39 Spot Trading L.L.C 25,000 72,000 0.20% Call
40 WealthTrust Fairport, LLC 19,252 55,000 0.15%
41 GLENMEDE TRUST CO NA 18,500 52,000 0.14%
42 CTC Alternative Strategies, Ltd. 17,600 50,688 0.14%
43 JACOBS LEVY EQUITY MANAGEMENT, INC 17,500 50,000 0.14%
44 Private Advisor Group, LLC 13,788 40,000 0.11%
45 BLACKROCK ADVISORS LLC 12,887 37,000 0.10%
46 BlackRock Investment Management, LLC 12,612 36,000 0.10%
47 LPL Financial LLC 11,500 33,000 0.09%
48 MUHLENKAMP & CO INC 10,150 29,000 0.08%
49 UMB Bank, n.a. 10,000 29,000 0.08%
50 MARATHON CAPITAL MANAGEMENT 10,000 29,000 0.08%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.