MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$9.96
*  
0.25
2.57%
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*Delayed - data as of Jan. 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 50.86%
Total Shares Outstanding (millions) 106
Total Value of Holdings (millions) $523

Active Positions

Holders Shares
Increased Positions 68 6,677,392
Decreased Positions 51 9,025,650
Held Positions 33 38,151,875
Total Institutional Shares 152 53,854,917

New and Sold Out Positions


Holders Shares
New Positions 27 4,310,732
Sold Out Positions 18 6,595,614

27 New Institutional Holders
4,310,732 New 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)
CONSONANCE CAPITAL MANAGEMENT LP 09/30/2014 1,536,902 1,536,902 New 14,923
LORD, ABBETT & CO. LLC 09/30/2014 616,512 616,512 New 5,986
PORTOLAN CAPITAL MANAGEMENT, LLC 09/30/2014 422,975 422,975 New 4,107
JANE STREET GROUP, LLC 09/30/2014 322,161 322,161 New 3,128
FIRST REPUBLIC INVESTMENT MANAGEMENT, INC. 09/30/2014 204,498 204,498 New 1,986
CADENCE CAPITAL MANAGEMENT LLC 09/30/2014 192,910 192,910 New 1,873
D. E. SHAW & CO., INC. 09/30/2014 169,710 169,710 New 1,648
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. 09/30/2014 157,500 157,500 New 1,529
RA CAPITAL MANAGEMENT, LLC 09/30/2014 116,400 116,400 New 1,130
AQR CAPITAL MANAGEMENT LLC 09/30/2014 99,900 99,900 New 970
SPARK INVESTMENT MANAGEMENT LLC 09/30/2014 90,500 90,500 New 879
MAZAMA CAPITAL MANAGEMENT INC 09/30/2014 86,657 86,657 New 841
BOSTON PRIVATE BANK & TRUST CO 12/31/2014 68,365 68,365 New 664
TWO SIGMA ADVISERS, LLC 09/30/2014 59,426 59,426 New 577
DYNAMIC TECHNOLOGY LAB PTE LTD 09/30/2014 25,396 25,396 New 247

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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