1,029 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, 323 increasing their positions, 362 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

more ownership

Funds ownership:

4% more capital invested

Capital invested by funds: $32.8B → $34.2B (+$1.39B)

11% less repeat investments, than reductions

Existing positions increased: 323 | Existing positions reduced: 362

14% less call options, than puts

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

Holders
1,029
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.29B
Puts
$1.51B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
276
$5.54M
277
$5.51M
278
$5.37M
279
$5.34M
280
$5.26M
281
$5.26M
282
$5.23M
283
$5.21M
284
$5.17M
285
$5.16M
286
$5.09M
287
$5.09M
288
$5.05M
289
$5.03M
290
$4.99M
291
$4.98M
292
$4.98M
293
$4.86M
294
$4.85M
295
$4.83M
296
$4.8M
297
$4.72M
298
$4.67M
299
$4.67M
300
$4.57M