MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$9.59
*  
0.37
3.71%
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*Delayed - data as of Jan. 28, 2015 15:28 ET  -  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 51.04%
Total Shares Outstanding (millions) 106
Total Value of Holdings (millions) $538

Active Positions

Holders Shares
Increased Positions 71 6,863,103
Decreased Positions 50 8,996,650
Held Positions 33 38,180,875
Total Institutional Shares 154 54,040,628

New and Sold Out Positions


Holders Shares
New Positions 30 4,496,443
Sold Out Positions 17 6,566,614

154 Institutional Holders
54,040,628 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)
TEKLA CAPITAL MANAGEMENT LLC 09/30/2014 567,787 0 0.00 5,655
CREDIT SUISSE AG/ 09/30/2014 547,373 51,007 10.28 5,452
GEODE CAPITAL MANAGEMENT, LLC 09/30/2014 519,013 428 .08 5,169
TIAA CREF INVESTMENT MANAGEMENT LLC 09/30/2014 458,881 (12,242) (2.6) 4,570
FULLER & THALER ASSET MANAGEMENT, INC. 09/30/2014 456,700 0 0.00 4,549
BLAIR WILLIAM & CO/IL 09/30/2014 423,700 1,400 .33 4,220
PORTOLAN CAPITAL MANAGEMENT, LLC 09/30/2014 422,975 422,975 New 4,213
JPMORGAN CHASE & CO 09/30/2014 343,880 (7,225) (2.06) 3,425
JANE STREET GROUP, LLC 09/30/2014 322,161 322,161 New 3,209
RENAISSANCE TECHNOLOGIES LLC 09/30/2014 321,213 (248,200) (43.59) 3,199
GOLDMAN SACHS GROUP INC 09/30/2014 309,812 (348,367) (52.93) 3,086
NEW YORK STATE COMMON RETIREMENT FUND 09/30/2014 292,400 0 0.00 2,912
B & T CAPITAL MANAGEMENT DBA ALPHA CAPITAL MANAGEMENT 12/31/2014 280,113 7,021 2.57 2,790
EAM INVESTORS, LLC 09/30/2014 272,905 154,592 130.66 2,718
SCHWAB CHARLES INVESTMENT MANAGEMENT INC 09/30/2014 272,391 5,029 1.88 2,713

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