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Biogen
BIIB

916 hedge funds and large institutions have $25.1B invested in Biogen in 2024 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 270 increasing their positions, 378 reducing their positions, and 118 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.51% more ownership

Funds ownership: 88.6% → 89.11% (+0.51%)

3% less funds holding

Funds holding: 943 → 916 (-27)

16% less first-time investments, than exits

New positions opened: 99 | Existing positions closed: 118

16% less capital invested

Capital invested by funds: $29.9B → $25.1B (-$4.82B)

24% less call options, than puts

Call options by funds: $214M | Put options by funds: $282M

29% less repeat investments, than reductions

Existing positions increased: 270 | Existing positions reduced: 378

33% less funds holding in top 10

Funds holding in top 10: 12 → 8 (-4)

Holders
916
Holders Change
-27
Holders Change %
-2.86%
% of All Funds
13.15%
Holding in Top 10
8
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-33.33%
% of All Funds
0.11%
New
99
Increased
270
Reduced
378
Closed
118
Calls
$214M
Puts
$282M
Net Calls
-$67.3M
Net Calls Change
-$32.9M

Top Buyers

1
BlackRock
BlackRock
New York
+$169M
2
Man Group
Man Group
United Kingdom
+$167M
3
JP Morgan Chase
JP Morgan Chase
New York
+$113M
4
Barclays
Barclays
United Kingdom
+$99.1M
5
Two Sigma Investments
Two Sigma Investments
New York
+$91.2M

Top Sellers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$298M
2
ClearBridge Investments
ClearBridge Investments
New York
-$181M
3
VanEck Associates
VanEck Associates
New York
-$172M
4
SCM
Sarissa Capital Management
Connecticut
-$129M
5
American Century Companies
American Century Companies
Missouri
-$126M
Name Holding Trade Value Shares
Change 		Change in
Stake
IGAM
276
iA Global Asset Management
Quebec, Canada
$2.88M +$114K +545 +4%
SF
277
Synovus Financial
Georgia
$2.8M +$172K +821 +6%
Parallax Volatility Advisers
278
Parallax Volatility Advisers
California
$2.79M +$25.5K +122 +0.9%
GF
279
Gabelli Funds
New York
$2.73M -$62.8K -300 -2%
Mackenzie Financial
280
Mackenzie Financial
Ontario, Canada
$2.73M -$2.42M -11,577 -45%
LWL
281
Leo Wealth LLC
Texas
$2.7M -$3.56K -17 -0.1%
AIMCA
282
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$2.69M +$2.91M +13,900 New
Creative Planning
283
Creative Planning
Kansas
$2.67M -$941K -4,500 -25%
Janney Montgomery Scott
284
Janney Montgomery Scott
Pennsylvania
$2.63M -$290K -1,387 -9%
ONSWM
285
Old North State Wealth Management
North Carolina
$2.62M +$20.9K +100 +0.7%
RJFSA
286
Raymond James Financial Services Advisors
Florida
$2.59M -$364K -1,742 -12%
GS
287
GTS Securities
New York
$2.58M -$131K -624 -4%
EAM
288
Exome Asset Management
New York
$2.57M +$2.79M +13,317 New
EMPI
289
Elo Mutual Pension Insurance
Finland
$2.5M -$39.5K -189 -1%
Cetera Investment Advisers
290
Cetera Investment Advisers
Illinois
$2.49M -$231K -1,105 -8%
TC
291
TownSquare Capital
Utah
$2.48M -$197K -941 -7%
LSA
292
Leonteq Securities AG
Switzerland
$2.42M +$2.61M +12,471 New
OPERF
293
Oregon Public Employees Retirement Fund
Oregon
$2.41M -$12.6K -60 -0.5%
William Blair & Company
294
William Blair & Company
Illinois
$2.36M -$196K -939 -7%
RIM
295
Rakuten Investment Management
Japan
$2.25M +$610K +2,917 +34%
CIG
296
Cairn Investment Group
Washington
$2.23M +$76.6K +366 +3%
EW
297
Evoke Wealth
California
$2.22M +$1.66M +7,916 +224%
GIBU
298
Gulf International Bank (UK)
United Kingdom
$2.22M -$107K -511 -4%
NGM
299
North Growth Management
British Columbia, Canada
$2.21M – – –
HighTower Advisors
300
HighTower Advisors
Illinois
$2.2M -$489K -2,335 -17%
10 11
12
13 14

BIIB Hedge Fund Activity: Q3 2024 in Review

916 of the 6,964 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q3 2024, worth a combined $25.1B — down 16% from $29.9B a quarter earlier.

Sellers outnumbered buyers: 118 funds closed out of BIIB and 99 opened new positions — a net loss of 19 holders — while 378 trimmed existing stakes and 270 added.

The largest buyer was BlackRock, adding an estimated $169M. The largest seller was T. Rowe Price Investment Management, cutting an estimated $298M.

  • 916 institutional investors held Biogen (BIIB) as of Q3 2024, down from 943 in Q2 2024.
  • Funds reported $25.1B of Biogen stock for Q3 2024, down 16% quarter-over-quarter.
  • 99 funds opened new Biogen positions in Q3 2024 and 118 closed out, a net change of -19 holders.
  • The largest Biogen buyer in Q3 2024 was BlackRock, an estimated $169M added.
  • The largest Biogen seller in Q3 2024 was T. Rowe Price Investment Management, an estimated $298M sold.

Based on aggregated 13F filings for Q3 2024.