MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$10.72
*  
0.05
0.46%
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*Delayed - data as of Feb. 27, 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 54.42%
Total Shares Outstanding (millions) 107
Total Value of Holdings (millions) $624

Active Positions

Holders Shares
Increased Positions 78 8,798,814
Decreased Positions 64 4,634,046
Held Positions 21 44,763,397
Total Institutional Shares 163 58,196,257

New and Sold Out Positions


Holders Shares
New Positions 32 3,708,097
Sold Out Positions 20 2,655,583

163 Institutional Holders
58,196,257 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)
GEODE CAPITAL MANAGEMENT, LLC 12/31/2014 615,354 96,341 18.56 6,597
PORTOLAN CAPITAL MANAGEMENT, LLC 12/31/2014 607,288 184,313 43.58 6,510
TEKLA CAPITAL MANAGEMENT LLC 12/31/2014 567,787 0 0.00 6,087
CREDIT SUISSE AG/ 12/31/2014 561,683 14,310 2.61 6,021
LORD, ABBETT & CO. LLC 12/31/2014 544,200 (72,312) (11.73) 5,834
TFS CAPITAL LLC 12/31/2014 476,105 476,105 New 5,104
FULLER & THALER ASSET MANAGEMENT, INC. 12/31/2014 463,600 6,900 1.51 4,970
TIAA CREF INVESTMENT MANAGEMENT LLC 12/31/2014 436,770 (22,111) (4.82) 4,682
EAM INVESTORS, LLC 12/31/2014 412,233 139,328 51.05 4,419
TWO SIGMA INVESTMENTS LLC 12/31/2014 399,412 255,512 177.56 4,282
BLAIR WILLIAM & CO/IL 12/31/2014 384,750 (38,950) (9.19) 4,125
CADENCE CAPITAL MANAGEMENT LLC 12/31/2014 348,810 155,900 80.82 3,739
BLACKROCK ADVISORS LLC 12/31/2014 343,878 142,010 70.35 3,686
GUGGENHEIM CAPITAL LLC 12/31/2014 339,372 339,372 New 3,638
CANNELL PETER B & CO INC 12/31/2014 326,700 261,300 399.54 3,502

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