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ARNA

Arena Pharmaceuticals Inc

Delisted

ARNA was delisted on the 10th of March, 2022.

316 hedge funds and large institutions have $4.86B invested in Arena Pharmaceuticals Inc in 2021 Q4 according to their latest regulatory filings, with 119 funds opening new positions, 76 increasing their positions, 90 reducing their positions, and 35 closing their positions.

New
Increased
Maintained
Reduced
Closed

240% more first-time investments, than exits

New positions opened: 119 | Existing positions closed: 35

45% more capital invested

Capital invested by funds: $3.35B → $4.86B (+$1.52B)

40% more funds holding in top 10

Funds holding in top 10: 57 (+2)

34% more funds holding

Funds holding: 235316 (+81)

30% more call options, than puts

Call options by funds: $131M | Put options by funds: $101M

16% less repeat investments, than reductions

Existing positions increased: 76 | Existing positions reduced: 90

Holders
316
Holders Change
+81
Holders Change %
+34.47%
% of All Funds
4.86%
Holding in Top 10
7
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+40%
% of All Funds
0.11%
New
119
Increased
76
Reduced
90
Closed
35
Calls
$131M
Puts
$101M
Net Calls
+$30.2M
Net Calls Change
+$4.52M
Name Holding Trade Value Shares
Change
Change in
Stake
D.E. Shaw & Co
51
D.E. Shaw & Co
New York
$21.2M +$15M +228,325 New
WCMNY
52
Westchester Capital Management (New York)
New York
$20.9M +$14.8M +224,444 New
WP
53
Woodline Partners
California
$19.5M +$403K +6,112 +3%
Alyeska Investment Group
54
Alyeska Investment Group
Illinois
$18.6M +$13.2M +200,000 New
YCM
55
Yiheng Capital Management
California
$18M +$12.7M +193,195 New
Susquehanna International Group
56
Susquehanna International Group
Pennsylvania
$17.7M +$7.34M +111,395 +141%
Renaissance Technologies
57
Renaissance Technologies
New York
$16.9M +$12M +181,516 New
TCM
58
Tekla Capital Management
Massachusetts
$16.4M +$6.08M +92,347 +110%
American Century Companies
59
American Century Companies
Missouri
$16.1M +$2.55M +38,672 +29%
RA
60
Ramius Advisors
New York
$15M +$10.7M +161,770 New
Morgan Stanley
61
Morgan Stanley
New York
$14.8M +$6.47M +98,247 +161%
Barclays
62
Barclays
United Kingdom
$13.9M +$6.52M +98,954 +194%
UBS AM
63
UBS AM
Illinois
$13.9M -$56.5K -858 -0.6%
Man Group
64
Man Group
United Kingdom
$13.7M +$9.11M +138,281 +1,478%
MP
65
Mangrove Partners
Connecticut
$13.5M +$9.56M +145,087 New
WIC
66
Water Island Capital
New York
$13.1M +$9.28M +140,800 New
EA
67
Emerald Advisers
Pennsylvania
$13M -$15.4M -233,701 -63%
Russell Investments Group
68
Russell Investments Group
United Kingdom
$12.8M -$1.93M -29,324 -18%
Verition Fund Management
69
Verition Fund Management
Connecticut
$12.3M +$8.74M +132,701 New
PCM
70
Pentwater Capital Management
Florida
$12.1M +$8.56M +130,000 New
Swiss National Bank
71
Swiss National Bank
Switzerland
$11.9M +$26.4K +400 +0.3%
Assenagon Asset Management
72
Assenagon Asset Management
Luxembourg
$11.7M +$2.63M +39,878 +46%
JG
73
Jefferies Group
New York
$11.3M +$7.88M +119,658 +5,806%
DCM
74
Driehaus Capital Management
Illinois
$11.3M +$8.02M +121,698 New
PCM
75
Peregrine Capital Management
Minnesota
$11.2M +$222K +3,375 +3%

ARNA Hedge Fund Activity: Q4 2021 in Review

316 of the 6,499 institutional investors tracked by Wall St. Rank reported a position in Arena Pharmaceuticals Inc (ARNA) for Q4 2021, worth a combined $4.86B — up 45% from $3.35B a quarter earlier.

Buyers outnumbered sellers: 119 funds opened new ARNA positions and 35 closed out — a net gain of 84 holders — while 76 added to existing stakes and 90 trimmed.

The largest buyer was Magnetar Financial, opening a new position worth an estimated $69.4M. The largest seller was Wellington Management Group, cutting an estimated $295M.

  • 316 institutional investors held Arena Pharmaceuticals Inc (ARNA) as of Q4 2021, up from 235 in Q3 2021.
  • Funds reported $4.86B of Arena Pharmaceuticals Inc stock for Q4 2021, up 45% quarter-over-quarter.
  • 119 funds opened new Arena Pharmaceuticals Inc positions in Q4 2021 and 35 closed out, a net change of +84 holders.
  • The largest Arena Pharmaceuticals Inc buyer in Q4 2021 was Magnetar Financial, an estimated $69.4M added.
  • The largest Arena Pharmaceuticals Inc seller in Q4 2021 was Wellington Management Group, an estimated $295M sold.

Based on aggregated 13F filings for Q4 2021.