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MACK

Merrimack Pharmaceuticals, Inc. Institutional Ownership

$5.61
*  
0.04
0.71%
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*Delayed - data as of Sep. 21, 2018 13:25 ET  -  Find a broker to begin trading MACK now
Exchange:NASDAQ
Industry: Health Care
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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 47.54%
Total Shares Outstanding (millions) 13
Total Value of Holdings (millions) $36

Active Positions

Holders Shares
Increased Positions 38 2,604,580
Decreased Positions 40 3,851,228
Held Positions 19 (112,319)
Total Institutional Shares 97 6,343,489

New and Sold Out Positions


Holders Shares
New Positions 17 1,537,159
Sold Out Positions 20 818,536

97 Institutional Holders
6,343,489 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 06/30/2018 1,110,588 1,110,588 New 6,275
NEWTYN MANAGEMENT, LLC 06/30/2018 633,297 492,440 349.60 3,578
VANGUARD GROUP INC 06/30/2018 552,852 (45,558) (7.61) 3,124
RUBRIC CAPITAL MANAGEMENT LP 06/30/2018 476,164 0 0.00 2,690
DIMENSIONAL FUND ADVISORS LP 06/30/2018 468,377 98,395 26.60 2,646
TIAA CREF INVESTMENT MANAGEMENT LLC 06/30/2018 402,457 (146,424) (26.68) 2,274
WITTENBERG INVESTMENT MANAGEMENT, INC. 06/30/2018 253,752 130,441 105.78 1,434
BLACKROCK INC. 06/30/2018 252,594 (552,726) (68.63) 1,427
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. 06/30/2018 174,774 31,509 21.99 987
MILLENNIUM MANAGEMENT LLC 06/30/2018 170,906 39,402 29.96 966
GOLDMAN SACHS GROUP INC 06/30/2018 136,241 107,395 372.31 770
RUSSELL INVESTMENTS GROUP, LTD. 06/30/2018 106,064 (400) (0.38) 599
J. GOLDMAN & CO LP 06/30/2018 100,000 100,000 New 565
FEDERATED INVESTORS INC /PA/ 06/30/2018 89,540 (19,639) (17.99) 506
GEODE CAPITAL MANAGEMENT, LLC 06/30/2018 82,341 (27,538) (25.06) 465

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