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INSMED INC COM PAR .01
INSMED INC COM PAR .01. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 123 Institutional holders with a total value of $1,122,931,187.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 8,617,514 179,245,000 15.96%
2 PRICE T ROWE ASSOCIATES INC /MD/ 8,371,147 174,120,000 15.51%
3 Palo Alto Investors LP 4,649,448 96,709,000 8.61%
4 JPMORGAN CHASE & CO 2,065,789 42,969,000 3.83%
5 BlackRock Fund Advisors 2,016,513 41,943,000 3.74%
6 JANUS HENDERSON INVESTORS US LLC 1,967,128 40,916,000 3.64%
7 STATE STREET CORP 1,776,482 36,952,000 3.29%
8 CITADEL ADVISORS LLC 1,652,123 34,364,000 3.06%
9 DEERFIELD MANAGEMENT COMPANY, L.P. 1,628,531 33,873,000 3.02%
10 BAKER BROS. ADVISORS LP 1,583,490 32,937,000 2.93%
11 VANGUARD GROUP INC 1,565,733 32,567,000 2.90%
12 Redmile Group, LLC 1,381,828 28,742,000 2.56%
13 BlackRock Institutional Trust Company, N.A. 1,363,418 28,359,000 2.53%
14 Tourbillon Capital Partners, L.P. 1,250,000 26,000,000 2.32%
15 JENNISON ASSOCIATES LLC 1,163,556 24,202,000 2.16%
16 MILLENNIUM MANAGEMENT LLC 1,157,604 24,078,000 2.14%
17 UBS Group AG 1,128,978 23,483,000 2.09%
18 PERCEPTIVE ADVISORS LLC 585,812 12,185,000 1.09%
19 NORTHERN TRUST CORP 563,633 11,723,000 1.04%
20 SENZAR ASSET MANAGEMENT, LLC 539,107 11,213,000 1.00%
21 MORGAN STANLEY 488,302 10,157,000 0.90%
22 STIFEL FINANCIAL CORP 483,593 10,059,000 0.90%
23 CITIGROUP INC 482,093 10,027,000 0.89%
24 EMERALD ADVISERS, LLC 416,622 8,762,000 0.78%
25 EMERALD MUTUAL FUND ADVISERS TRUST 367,720 7,733,000 0.69%
26 Rock Springs Capital Management LP 365,000 7,592,000 0.68%
27 TEACHERS ADVISORS, LLC 292,945 6,093,000 0.54%
28 GEODE CAPITAL MANAGEMENT, LLC 287,619 5,982,000 0.53%
29 Asset Management One Co., Ltd. 272,862 5,754,000 0.51%
30 Bank of New York Mellon Corp 265,821 5,529,000 0.49%
31 SPHERA FUNDS MANAGEMENT LTD. 250,000 5,200,000 0.46%
32 PUTNAM INVESTMENTS LLC 240,200 4,996,000 0.44%
33 First Light Asset Management, LLC 210,066 4,369,000 0.39%
34 OXFORD ASSET MANAGEMENT LLP 208,805 4,343,000 0.39%
35 TIAA CREF INVESTMENT MANAGEMENT LLC 207,468 4,315,000 0.38%
36 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 200,837 4,177,000 0.37%
37 DEUTSCHE BANK AG\ 195,263 4,060,000 0.36%
38 Candriam S.C.A. 190,000 3,953,000 0.35%
39 PRINCIPAL FINANCIAL GROUP INC 173,100 3,601,000 0.32%
40 ACUTA CAPITAL PARTNERS, LLC 150,000 3,120,000 0.28%
41 BlackRock Investment Management, LLC 144,425 3,004,000 0.27%
42 QS Investors, LLC 143,244 2,978,000 0.27%
43 AMERIPRISE FINANCIAL INC 136,088 2,831,000 0.25%
44 D. E. Shaw & Co., Inc. 128,575 2,674,000 0.24%
45 DENVER INVESTMENT ADVISORS LLC 117,550 2,445,000 0.22%
46 Alyeska Investment Group, L.P. 115,000 2,392,000 0.21%
47 Connor, Clark & Lunn Investment Management Ltd. 105,800 2,201,000 0.20%
48 TD ASSET MANAGEMENT INC 92,100 1,916,000 0.17%
49 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 90,329 1,879,000 0.17%
50 GOLDMAN SACHS GROUP INC 89,737 1,867,000 0.17%
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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.