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MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$4.54
*  
0.03
0.67%
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*Delayed - data as of Nov. 20, 2018  -  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 as reported in the most recent 13F filings


Institutional Ownership 47.06%
Total Shares Outstanding (millions) 13
Total Value of Holdings (millions) $28

Active Positions

Holders Shares
Increased Positions 21 702,735
Decreased Positions 36 770,369
Held Positions 24 4,805,451
Total Institutional Shares 81 6,278,555

New and Sold Out Positions


Holders Shares
New Positions 3 96,574
Sold Out Positions 16 262,525

81 Institutional Holders
6,278,555 Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).


Owner Name Date Shares Held Change (Shares) Change (%) Value (in 1,000s)
BVF INC/IL 09/30/2018 1,110,588 0 0.00 5,009
NEWTYN MANAGEMENT, LLC 09/30/2018 675,000 41,703 6.59 3,044
DIMENSIONAL FUND ADVISORS LP 09/30/2018 573,514 105,137 22.45 2,587
RUBRIC CAPITAL MANAGEMENT LP 09/30/2018 554,338 78,174 16.42 2,500
VANGUARD GROUP INC 09/30/2018 546,632 (6,220) (1.13) 2,465
TIAA CREF INVESTMENT MANAGEMENT LLC 09/30/2018 402,457 0 0.00 1,815
CLEARLINE CAPITAL LP 09/30/2018 320,855 261,524 440.79 1,447
WITTENBERG INVESTMENT MANAGEMENT, INC. 09/30/2018 254,752 1,000 .39 1,149
BLACKROCK INC. 09/30/2018 254,218 1,624 .64 1,147
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. 09/30/2018 171,574 (3,200) (1.83) 774
MILLENNIUM MANAGEMENT LLC 09/30/2018 133,650 (37,256) (21.8) 603
J. GOLDMAN & CO LP 09/30/2018 100,000 0 0.00 451
GEODE CAPITAL MANAGEMENT, LLC 09/30/2018 83,213 872 1.06 375
CANNELL PETER B & CO INC 09/30/2018 75,367 0 0.00 340
GOLDMAN SACHS GROUP INC 09/30/2018 72,684 (63,557) (46.65) 328

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