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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
Marshall Wace
26
Marshall Wace
United Kingdom
$6.11M +$5.98M +62,829 New
Fuller & Thaler Asset Management
27
Fuller & Thaler Asset Management
California
$5.84M +$120K +1,258 +2%
American Century Companies
28
American Century Companies
Missouri
$5.7M +$1.25M +13,123 +29%
Axa
29
Axa
France
$5.47M
CS
30
Credit Suisse
Switzerland
$5.46M +$1.17M +12,291 +28%
BIM
31
BlackRock Investment Management
Delaware
$4.65M +$1.23M +12,956 +37%
William Blair & Company
32
William Blair & Company
Illinois
$4.47M +$198K +2,078 +5%
Ameriprise
33
Ameriprise
Minnesota
$4.39M +$3.15M +33,116 +275%
EI
34
EAM Investors
California
$4.33M -$261K -2,746 -6%
Wellington Management Group
35
Wellington Management Group
Massachusetts
$4.16M +$238K +2,504 +6%
CCM
36
Cadence Capital Management
Massachusetts
$4.06M +$180K +1,893 +5%
Charles Schwab
37
Charles Schwab
California
$3.99M +$253K +2,657 +7%
QI
38
QS Investors
New York
$3.74M
Goldman Sachs
39
Goldman Sachs
New York
$3.3M -$211K -2,215 -6%
Millennium Management
40
Millennium Management
New York
$3.21M -$7.66M -80,455 -71%
JP Morgan Chase
41
JP Morgan Chase
New York
$3.12M -$134K -1,407 -4%
GCP
42
GSA Capital Partners
United Kingdom
$3.1M +$1.14M +11,959 +60%
Invesco
43
Invesco
Georgia
$3M -$1.83M -19,281 -38%
BA
44
BlackRock Advisors
Delaware
$2.84M -$1.29M -13,597 -32%
Brown Advisory
45
Brown Advisory
Maryland
$2.69M -$157K -1,650 -6%
ARTA
46
A.R.T. Advisors
New York
$2.5M +$1.62M +16,974 +195%
California State Teachers Retirement System (CalSTRS)
47
California State Teachers Retirement System (CalSTRS)
California
$2.48M +$254K +2,669 +12%
CS
48
Candriam SCA
Luxembourg
$2.41M +$2.36M +24,785 New
UBS Group
49
UBS Group
Switzerland
$2.4M -$255K -2,681 -10%
AllianceBernstein
50
AllianceBernstein
Tennessee
$2.12M +$127K +1,334 +7%

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.