MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$10.2
*  
0.14
1.39%
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*Delayed - data as of Jul. 30, 2015  -  Find a broker to begin trading MACK now
Exchange: NASDAQ
Industry: Health Care
Community Rating:
 
 
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Ownership Summary Institutional Holdings Insiders
(SEC Form 4)
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Ownership Summary


Institutional Ownership 62.91%
Total Shares Outstanding (millions) 110
Total Value of Holdings (millions) $696

Active Positions

Holders Shares
Increased Positions 79 15,015,995
Decreased Positions 61 4,109,199
Held Positions 30 50,096,046
Total Institutional Shares 170 69,221,240

New and Sold Out Positions


Holders Shares
New Positions 29 5,589,077
Sold Out Positions 15 1,496,639

79 Increased Institutional Holders
15,015,995 Increased Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).
Owner Name Date Shared Held Change (Shares) Change (%) Value (in 1,000s)
FMR LLC 03/31/2015 16,139,452 256,832 1.62 162,363
VANGUARD GROUP INC 03/31/2015 8,707,054 2,090,625 31.60 87,593
BLACKROCK FUND ADVISORS 03/31/2015 4,981,073 235,406 4.96 50,110
STATE STREET CORP 03/31/2015 3,465,430 257,024 8.01 34,862
WESTFIELD CAPITAL MANAGEMENT CO LP 03/31/2015 2,903,559 2,903,559 New 29,210
TIAA CREF INVESTMENT MANAGEMENT LLC 03/31/2015 2,577,414 2,140,644 490.11 25,929
BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. 03/31/2015 2,419,959 580,612 31.57 24,345
LAGODA INVESTMENT MANAGEMENT, L.P. 03/31/2015 1,931,872 371,342 23.80 19,435
TEACHERS ADVISORS INC 03/31/2015 1,124,536 985,445 708.49 11,313
NORTHERN TRUST CORP 03/31/2015 1,118,748 33,264 3.06 11,255
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. 03/31/2015 1,052,700 313,100 42.33 10,590
BALYASNY ASSET MANAGEMENT LLC 03/31/2015 1,010,126 1,010,126 New 10,162
CITY NATIONAL BANK 03/31/2015 987,946 217,481 28.23 9,939
VOYA INVESTMENT MANAGEMENT LLC 03/31/2015 891,658 829,000 1,323.06 8,970
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC 03/31/2015 870,244 13,047 1.52 8,755

Institutional Holdings information for this company is filed by major institutions on form 13-F with the Securities and Exchange Commission.
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