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MACK

Merrimack Pharmaceuticals, Inc.

Delisted

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

43 hedge funds and large institutions have $50.5M invested in Merrimack Pharmaceuticals, Inc. in 2021 Q2 according to their latest regulatory filings, with 5 funds opening new positions, 7 increasing their positions, 17 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed

1% more capital invested

Capital invested by funds: $50M → $50.5M (+$484K)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

4% less funds holding

Funds holding: 4543 (-2)

29% less first-time investments, than exits

New positions opened: 5 | Existing positions closed: 7

59% less repeat investments, than reductions

Existing positions increased: 7 | Existing positions reduced: 17

88% less call options, than puts

Call options by funds: $38K | Put options by funds: $317K

Holders
43
Holders Change
-2
Holders Change %
-4.44%
% of All Funds
0.75%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.02%
New
5
Increased
7
Reduced
17
Closed
7
Calls
$38K
Puts
$317K
Net Calls
-$279K
Net Calls Change
+$43K
Name Holding Trade Value Shares
Change
Change in
Stake
NM
1
Newtyn Management
New York
$9.87M
WSL
2
Western Standard LLC
California
$8.11M +$1.7M +257,987 +26%
2L
3
22NW LP
Washington
$7.94M
Vanguard Group
4
Vanguard Group
Pennsylvania
$3.95M
NCM
5
Nantahala Capital Management
Connecticut
$3.65M -$244K -37,028 -6%
BCM
6
Bronte Capital Management
Australia
$3.51M -$12.2K -1,843 -0.3%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$3.31M -$10.4K -1,575 -0.3%
SC
8
Sepio Capital
Utah
$1.42M +$16.7K +2,532 +1%
Point72 Asset Management
9
Point72 Asset Management
Connecticut
$1.34M +$1.38M +209,563 New
WIM
10
Wittenberg Investment Management
Massachusetts
$1.21M +$20.4K +3,096 +2%
BlackRock
11
BlackRock
New York
$1.2M -$452K -68,413 -27%
Renaissance Technologies
12
Renaissance Technologies
New York
$652K -$569K -86,191 -46%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$617K +$36.2K +5,484 +6%
Two Sigma Investments
14
Two Sigma Investments
New York
$397K -$1.02M -154,722 -71%
YCM
15
Yakira Capital Management
Connecticut
$387K
BCM
16
Bridgeway Capital Management
Texas
$378K -$33K -5,000 -8%
State Street
17
State Street
Massachusetts
$297K +$233K +35,371 +316%
Two Sigma Advisers
18
Two Sigma Advisers
New York
$269K -$766K -116,079 -73%
Susquehanna International Group
19
Susquehanna International Group
Pennsylvania
$267K -$426K -64,507 -61%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$262K -$8.11K -1,229 -3%
Marshall Wace
21
Marshall Wace
United Kingdom
$250K -$347K -52,616 -57%
LPIC
22
LeJeune Puetz Investment Counsel
Michigan
$221K
Group One Trading
23
Group One Trading
Illinois
$220K +$228K +34,493 New
Northern Trust
24
Northern Trust
Illinois
$203K -$29.9K -4,535 -13%
Citadel Advisors
25
Citadel Advisors
Florida
$122K -$10.5K -1,592 -8%

MACK Hedge Fund Activity: Q2 2021 in Review

43 of the 5,745 institutional investors tracked by Wall St. Rank reported a position in Merrimack Pharmaceuticals, Inc. (MACK) for Q2 2021, worth a combined $50.5M — up 0.97% from $50M a quarter earlier.

Sellers outnumbered buyers: 7 funds closed out of MACK and 5 opened new positions — a net loss of 2 holders — while 17 trimmed existing stakes and 7 added.

The largest buyer was Western Standard LLC, adding an estimated $1.7M. The largest seller was Two Sigma Investments, cutting an estimated $1.02M.

  • 43 institutional investors held Merrimack Pharmaceuticals, Inc. (MACK) as of Q2 2021, down from 45 in Q1 2021.
  • Funds reported $50.5M of Merrimack Pharmaceuticals, Inc. stock for Q2 2021, up 0.97% quarter-over-quarter.
  • 5 funds opened new Merrimack Pharmaceuticals, Inc. positions in Q2 2021 and 7 closed out, a net change of -2 holders.
  • The largest Merrimack Pharmaceuticals, Inc. buyer in Q2 2021 was Western Standard LLC, an estimated $1.7M added.
  • The largest Merrimack Pharmaceuticals, Inc. seller in Q2 2021 was Two Sigma Investments, an estimated $1.02M sold.

Based on aggregated 13F filings for Q2 2021.