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

Institutional Holders (2015Q1)
Portfolio Summary: 44 Institutional holders with a total value of $21,428,605.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FRANKLIN RESOURCES INC 11,946,100 5,794,000 27.04%
2 BVF INC/IL 7,241,600 3,512,000 16.39%
3 BAKER BROS. ADVISORS LP 4,707,464 2,283,000 10.65%
4 VANGUARD GROUP INC 3,695,062 1,792,000 8.36%
5 Alyeska Investment Group, L.P. 2,969,381 1,440,000 6.72% Call
6 MPM ASSET MANAGEMENT LLC 2,551,851 1,250,000 5.83%
7 ProQuest Associates IV LLC 2,551,851 1,238,000 5.78%
8 Alyeska Investment Group, L.P. 2,398,892 1,163,000 5.43%
9 SPHERA FUNDS MANAGEMENT LTD. 1,374,900 667,000 3.11%
10 DEUTSCHE BANK AG\ 834,296 403,000 1.88%
11 PERKINS CAPITAL MANAGEMENT INC 643,000 312,000 1.46%
12 RENAISSANCE TECHNOLOGIES LLC 602,094 292,000 1.36%
13 SHEPHERD KAPLAN KROCHUK, LLC 581,886 282,000 1.32%
14 GEODE CAPITAL MANAGEMENT, LLC 560,868 272,000 1.27%
15 Creative Planning 401,700 195,000 0.91%
16 DIMENSIONAL FUND ADVISORS LP 220,903 107,000 0.50%
17 Bank of New York Mellon Corp 167,295 81,000 0.38%
18 NOMURA HOLDINGS INC 129,000 64,000 0.30%
19 NORTHERN TRUST CORP 129,547 63,000 0.29%
20 BlackRock Institutional Trust Company, N.A. 82,226 40,000 0.19%
21 SUSQUEHANNA INTERNATIONAL GROUP, LLP 78,657 38,000 0.18%
22 HighTower Advisors, LLC 75,500 37,000 0.17%
23 Virtu KCG Holdings LLC 44,482 22,000 0.10%
24 GUGGENHEIM CAPITAL LLC 27,835 13,000 0.06%
25 UBS Group AG 24,960 12,000 0.06%
26 TWO SIGMA SECURITIES, LLC 23,697 11,000 0.05%
27 UBS Group AG 17,500 8,000 0.04% Call
28 HIGHBRIDGE CAPITAL MANAGEMENT LLC 14,226 7,000 0.03%
29 STATE STREET CORP 13,124 6,000 0.03%
30 Cetera Advisor Networks LLC 10,000 5,000 0.02%
31 Genesis Wealth Advisors, LLC 10,000 4,605 0.02%
32 GROUP ONE TRADING LLC 8,285 4,000 0.02%
33 BANK OF AMERICA CORP /DE/ 5,800 3,000 0.01%
34 EARNEST PARTNERS LLC 5,400 3,000 0.01%
35 MANUFACTURERS LIFE INSURANCE COMPANY, THE 2,139 1,000 0.00%
36 ALLIANCEBERNSTEIN L.P. 2,500 1,000 0.00%
37 Pine River Capital Management L.P. 687,500 1,000 0.00%
38 Hoxton Financial, Inc. 1,091 1,000 0.00%
39 Corbenic Partners LLC 1,500 1,000 0.00%
40 PNC FINANCIAL SERVICES GROUP, INC. 600 0 0.00%
41 B. Riley Wealth Management, Inc. 597 0 0.00%
42 CITIGROUP INC 255 0 0.00%
43 MORGAN STANLEY 700 0 0.00%
44 LADENBURG THALMANN FINANCIAL SERVICES INC. 4 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.