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1,031 hedge funds and large institutions have $34.2B invested in Biogen in 2022 Q4 according to their latest regulatory filings, with 159 funds opening new positions, 325 increasing their positions, 362 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

66% more first-time investments, than exits

New positions opened: 159 | Existing positions closed: 96

14% more funds holding in top 10

Funds holding in top 10: 2225 (+3)

5% more funds holding

Funds holding: 9861,031 (+45)

1.43% more ownership

Funds ownership: 85.29%86.72% (+1.4%)

4% more capital invested

Capital invested by funds: $32.8B → $34.2B (+$1.4B)

10% less repeat investments, than reductions

Existing positions increased: 325 | Existing positions reduced: 362

14% less call options, than puts

Call options by funds: $1.29B | Put options by funds: $1.51B

Holders
1,031
Holders Change
+45
Holders Change %
+4.56%
% of All Funds
16.57%
Holding in Top 10
25
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+13.64%
% of All Funds
0.4%
New
159
Increased
325
Reduced
362
Closed
96
Calls
$1.29B
Puts
$1.51B
Net Calls
-$216M
Net Calls Change
-$369M
Name Holding Trade Value Shares
Change
Change in
Stake
GGHC
176
Gilder Gagnon Howe & Co
New York
$15.7M +$16M +56,541 New
GIA
177
Gateway Investment Advisers
Ohio
$15.6M -$4.07M -14,395 -20%
Rafferty Asset Management
178
Rafferty Asset Management
New York
$15.6M -$4.65M -16,459 -23%
Fidelity International
179
Fidelity International
Bermuda
$15.2M +$776K +2,747 +5%
Baird Financial Group
180
Baird Financial Group
Wisconsin
$15.2M -$3.61M -12,784 -19%
AIG
181
American International Group
New York
$15M +$1.66M +5,885 +12%
BPC
182
Banque Pictet & Cie
Switzerland
$15M +$2.49M +8,821 +20%
CI
183
Clal Insurance
Israel
$14.7M +$15M +53,000 New
Macquarie Group
184
Macquarie Group
Australia
$14.7M +$247K +874 +2%
Hudson Bay Capital Management
185
Hudson Bay Capital Management
Connecticut
$14.5M +$1.41M +5,000 +11%
WorldQuant Millennium Advisors
186
WorldQuant Millennium Advisors
New York
$14.4M -$25.3M -89,604 -63%
Balyasny Asset Management
187
Balyasny Asset Management
Illinois
$14.2M -$35.2M -124,782 -71%
AAF
188
Andra AP-fonden
Sweden
$13.9M +$3.22M +11,400 +29%
SIG
189
Senator Investment Group
New York
$13.8M +$14.1M +50,000 New
SOADOR
190
State of Alaska Department of Revenue
Alaska
$13.4M +$238K +842 +2%
Twin Tree Management
191
Twin Tree Management
Texas
$13.3M -$18.5M -65,616 -58%
BM
192
Bridger Management
New York
$13.2M +$13.5M +47,777 New
OPERF
193
Oregon Public Employees Retirement Fund
Oregon
$13.2M +$4.96M +17,546 +58%
Mackenzie Financial
194
Mackenzie Financial
Ontario, Canada
$12.8M -$2.12M -7,491 -14%
Aviva
195
Aviva
United Kingdom
$12.8M +$6.81M +24,112 +110%
GC
196
Grimes & Company
Massachusetts
$12.7M -$194K -686 -1%
AIMCA
197
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$12.7M -$4.52M -16,006 -26%
AT
198
AMF Tjänstepension
Sweden
$12.6M
Calamos Advisors
199
Calamos Advisors
Illinois
$12.6M -$2.27M -8,020 -15%
DnB Asset Management
200
DnB Asset Management
Norway
$11.8M -$626K -2,217 -5%

BIIB Hedge Fund Activity: Q4 2022 in Review

1,031 of the 6,221 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q4 2022, worth a combined $34.2B — up 4.3% from $32.8B a quarter earlier.

Buyers outnumbered sellers: 159 funds opened new BIIB positions and 96 closed out — a net gain of 63 holders — while 325 added to existing stakes and 362 trimmed.

The largest buyer was Marshall Wace, adding an estimated $309M. The largest seller was Millennium Management, cutting an estimated $162M.

  • 1,031 institutional investors held Biogen (BIIB) as of Q4 2022, up from 986 in Q3 2022.
  • Funds reported $34.2B of Biogen stock for Q4 2022, up 4.3% quarter-over-quarter.
  • 159 funds opened new Biogen positions in Q4 2022 and 96 closed out, a net change of +63 holders.
  • The largest Biogen buyer in Q4 2022 was Marshall Wace, an estimated $309M added.
  • The largest Biogen seller in Q4 2022 was Millennium Management, an estimated $162M sold.

Based on aggregated 13F filings for Q4 2022.