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MAST THERAPEUTICS
MAST THERAPEUTICS. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 49 Institutional holders with a total value of $29,842,550.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FRANKLIN RESOURCES INC 11,946,100 6,690,000 22.42%
2 BVF INC/IL 7,291,600 4,083,000 13.68%
3 BAKER BROS. ADVISORS LP 4,774,434 2,674,000 8.96%
4 Alyeska Investment Group, L.P. 4,678,855 2,620,000 8.78%
5 Alyeska Investment Group, L.P. 4,118,800 2,307,000 7.73% Call
6 SABBY MANAGEMENT, LLC 3,539,779 1,982,000 6.64%
7 VANGUARD GROUP INC 3,382,483 1,894,000 6.35%
8 ProQuest Associates IV LLC 2,551,851 1,429,000 4.79%
9 MPM ASSET MANAGEMENT LLC 2,551,851 1,429,000 4.79%
10 DEUTSCHE BANK AG\ 1,915,800 1,072,000 3.59%
11 SPHERA FUNDS MANAGEMENT LTD. 1,374,900 770,000 2.58%
12 PERKINS CAPITAL MANAGEMENT INC 1,150,000 644,000 2.16%
13 DEERFIELD MANAGEMENT COMPANY, L.P. 700,000 392,000 1.31%
14 SHEPHERD KAPLAN KROCHUK, LLC 581,886 326,000 1.09%
15 GEODE CAPITAL MANAGEMENT, LLC 560,868 314,000 1.05%
16 Anson Funds Management LP 432,007 242,000 0.81%
17 Creative Planning 378,700 212,000 0.71%
18 RENAISSANCE TECHNOLOGIES LLC 242,475 136,000 0.46%
19 DIMENSIONAL FUND ADVISORS LP 220,903 124,000 0.42%
20 Bank of New York Mellon Corp 167,295 94,000 0.31%
21 Virtu KCG Holdings LLC 137,908 77,000 0.26%
22 NORTHERN TRUST CORP 129,547 73,000 0.24%
23 HighTower Advisors, LLC 91,500 51,000 0.17%
24 CITADEL ADVISORS LLC 81,561 46,000 0.15%
25 PIPER SANDLER & CO. 56,200 31,000 0.10% Call
26 MORGAN STANLEY 44,800 25,000 0.08%
27 UBS Group AG 25,900 15,000 0.05% Call
28 BlackRock Institutional Trust Company, N.A. 22,218 12,000 0.04%
29 GUGGENHEIM CAPITAL LLC 21,059 12,000 0.04%
30 ZACKS INVESTMENT MANAGEMENT 20,000 11,000 0.04%
31 HIGHBRIDGE CAPITAL MANAGEMENT LLC 14,226 8,000 0.03%
32 STATE STREET CORP 13,124 7,000 0.02%
33 SUSQUEHANNA INTERNATIONAL GROUP, LLP 10,107 6,000 0.02%
34 SUSQUEHANNA INTERNATIONAL GROUP, LLP 10,800 6,000 0.02% Call
35 Cetera Advisor Networks LLC 10,000 6,000 0.02%
36 Genesis Wealth Advisors, LLC 10,000 5,550 0.02%
37 Pine River Capital Management L.P. 687,500 4,000 0.01%
38 EARNEST PARTNERS LLC 5,400 3,000 0.01%
39 WELLS FARGO & COMPANY/MN 5,000 3,000 0.01%
40 UBS Group AG 6,793 3,000 0.01%
41 Hoxton Financial, Inc. 1,091 1,000 0.00%
42 MANUFACTURERS LIFE INSURANCE COMPANY, THE 2,139 1,000 0.00%
43 Godshalk Welsh Capital Management, Inc. 2,000 1,000 0.00%
44 Corbenic Partners LLC 1,500 1,000 0.00%
45 GROUP ONE TRADING LLC 253 0 0.00%
46 LADENBURG THALMANN FINANCIAL SERVICES INC. 4 0 0.00%
47 Pomelo Capital LLC 250,000 0 0.00% Call
48 B. Riley Wealth Management, Inc. 597 0 0.00%
49 PNC FINANCIAL SERVICES GROUP, INC. 600 0 0.00%

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.