MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$11.42
*  
0.70
5.78%
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*Delayed - data as of May 5, 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 53.85%
Total Shares Outstanding (millions) 108
Total Value of Holdings (millions) $702

Active Positions

Holders Shares
Increased Positions 70 8,142,113
Decreased Positions 66 4,921,276
Held Positions 29 44,878,642
Total Institutional Shares 165 57,942,031

New and Sold Out Positions


Holders Shares
New Positions 25 3,053,185
Sold Out Positions 22 2,645,554

66 Decreased Institutional Holders
4,921,276 Decreased 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)
STATE STREET CORP 12/31/2014 3,208,406 (463,744) (12.63) 38,886
MILLENNIUM MANAGEMENT LLC 12/31/2014 1,797,848 (193,374) (9.71) 21,790
NORTHERN TRUST CORP 12/31/2014 1,085,484 (44,625) (3.95) 13,156
PUTNAM INVESTMENTS LLC 12/31/2014 777,625 (619) (0.08) 9,425
BANK OF NEW YORK MELLON CORP 12/31/2014 764,249 (9,494) (1.23) 9,263
LORD, ABBETT & CO. LLC 12/31/2014 544,200 (72,312) (11.73) 6,596
TIAA CREF INVESTMENT MANAGEMENT LLC 12/31/2014 436,770 (22,111) (4.82) 5,294
BLAIR WILLIAM & CO/IL 12/31/2014 384,750 (38,950) (9.19) 4,663
CADENCE CAPITAL MANAGEMENT LLC 03/31/2015 313,770 (35,040) (10.05) 3,803
GOLDMAN SACHS GROUP INC 12/31/2014 308,047 (1,765) (0.57) 3,734
BLACKROCK INVESTMENT MANAGEMENT, LLC 12/31/2014 269,375 (2,397) (0.88) 3,265
JPMORGAN CHASE & CO 12/31/2014 262,639 (81,241) (23.63) 3,183
RENAISSANCE TECHNOLOGIES LLC 12/31/2014 255,413 (65,800) (20.49) 3,096
CAMBRIDGE TRUST CO 12/31/2014 165,003 (15,000) (8.33) 2,000
FIRST REPUBLIC INVESTMENT MANAGEMENT, INC. 12/31/2014 161,899 (42,599) (20.83) 1,962

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