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MACK

Merrimack Pharmaceuticals, Inc.

Delisted

MACK was delisted on the 17th of May, 2024.

150 hedge funds and large institutions have $931M invested in Merrimack Pharmaceuticals, Inc. in 2015 Q2 according to their latest regulatory filings, with 19 funds opening new positions, 66 increasing their positions, 34 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

154% more call options, than puts

Call options by funds: $6.62M | Put options by funds: $2.61M

94% more repeat investments, than reductions

Existing positions increased: 66 | Existing positions reduced: 34

14% more capital invested

Capital invested by funds: $819M → $931M (+$112M)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

0% more first-time investments, than exits

New positions opened: 19 | Existing positions closed: 19

1% less funds holding

Funds holding: 152150 (-2)

Holders
150
Holders Change
-2
Holders Change %
-1.32%
% of All Funds
4.04%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.03%
New
19
Increased
66
Reduced
34
Closed
19
Calls
$6.62M
Puts
$2.61M
Net Calls
+$4.01M
Net Calls Change
+$2.39M
Name Holding Trade Value Shares
Change
Change in
Stake
PAG
76
Private Advisor Group
New Jersey
$819K +$103K +1,079 +15%
SGAM
77
Smith Group Asset Management
Texas
$806K +$214K +2,245 +37%
AIG
78
American International Group
New York
$797K +$33.2K +349 +4%
Royal Bank of Canada
79
Royal Bank of Canada
Ontario, Canada
$767K +$36.3K +381 +5%
MIG
80
Mariner Investment Group
New York
$706K +$690K +7,256 New
Susquehanna International Group
81
Susquehanna International Group
Pennsylvania
$649K -$191K -2,002 -23%
DekaBank Deutsche Girozentrale
82
DekaBank Deutsche Girozentrale
Germany
$643K +$22.9K +241 +4%
OC
83
Oppenheimer & Co
New York
$589K -$530K -5,567 -48%
Two Sigma Investments
84
Two Sigma Investments
New York
$574K -$4.04M -42,422 -88%
State Board of Administration of Florida Retirement System
85
State Board of Administration of Florida Retirement System
Florida
$547K +$10.1K +106 +2%
T. Rowe Price Associates
86
T. Rowe Price Associates
Maryland
$535K +$179K +1,881 +52%
RJA
87
Raymond James & Associates
Florida
$530K +$69K +725 +15%
BC
88
Birchview Capital
Vermont
$523K
Wells Fargo
89
Wells Fargo
California
$518K +$410K +4,309 +424%
Citigroup
90
Citigroup
New York
$490K -$105K -1,106 -18%
PPA
91
Parametric Portfolio Associates
Washington
$488K +$54.9K +577 +13%
CA
92
Commerzbank Aktiengesellschaft
Germany
$460K -$62.2K -654 -12%
Public Employees Retirement Association of Colorado
93
Public Employees Retirement Association of Colorado
Colorado
$444K -$19.5K -205 -4%
MCM
94
Manchester Capital Management
Vermont
$371K
SAM
95
Silvercrest Asset Management
New York
$359K +$351K +3,687 New
Commonwealth Equity Services
96
Commonwealth Equity Services
Massachusetts
$341K +$137K +1,442 +70%
WP
97
WMS Partners
Maryland
$317K
BG
98
BlackRock Group
United Kingdom
$311K -$186K -1,959 -38%
Jane Street
99
Jane Street
New York
$294K +$76.5K +804 +36%
LTFS
100
Ladenburg Thalmann Financial Services
Florida
$281K

MACK Hedge Fund Activity: Q2 2015 in Review

150 of the 3,712 institutional investors tracked by Wall St. Rank reported a position in Merrimack Pharmaceuticals, Inc. (MACK) for Q2 2015, worth a combined $931M — up 14% from $819M a quarter earlier.

Fund positioning in MACK was balanced in Q2 2015: 19 funds opened new positions, 19 closed out, 66 added to existing stakes and 34 trimmed.

The largest buyer was Westfield Capital Management, adding an estimated $23.9M. The largest seller was Millennium Management, cutting an estimated $7.66M.

  • 150 institutional investors held Merrimack Pharmaceuticals, Inc. (MACK) as of Q2 2015, down from 152 in Q1 2015.
  • Funds reported $931M of Merrimack Pharmaceuticals, Inc. stock for Q2 2015, up 14% quarter-over-quarter.
  • 19 funds opened new Merrimack Pharmaceuticals, Inc. positions in Q2 2015 and 19 closed out, a net change of 0 holders.
  • The largest Merrimack Pharmaceuticals, Inc. buyer in Q2 2015 was Westfield Capital Management, an estimated $23.9M added.
  • The largest Merrimack Pharmaceuticals, Inc. seller in Q2 2015 was Millennium Management, an estimated $7.66M sold.

Based on aggregated 13F filings for Q2 2015.