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Alector

149 hedge funds and large institutions have $221M invested in Alector in 2025 Q3 according to their latest regulatory filings, with 25 funds opening new positions, 46 increasing their positions, 40 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

15% more repeat investments, than reductions

Existing positions increased: 46 | Existing positions reduced: 40

10% more funds holding

Funds holding: 136149 (+13)

3.34% more ownership

Funds ownership: 70.51%73.85% (+3.3%)

Holders
149
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.93M
Puts
$807K
Net Calls
Net Calls Change

Top Buyers

1 +$15.4M
2 +$2.2M
3 +$1.64M
4
Barclays
Barclays
United Kingdom
+$1.55M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$978K

Top Sellers

1 -$5.93M
2 -$2.41M
3 -$1.71M
4
SCM
Sio Capital Management
New York
-$1.18M
5
EP
Eversept Partners
New York
-$1.1M
Name Holding Trade Value Shares
Change
Change in
Stake
26
$1.88M
27
$1.86M
28
$1.81M
29
$1.55M
30
$1.53M
31
$1.43M
32
$1.4M
33
$1.3M
34
$1.29M
35
$1.04M
36
$1.01M
37
$914K
38
$909K
39
$876K
40
$840K
41
$811K
42
$810K
43
$729K
44
$682K
45
$664K
46
$641K
47
$569K
48
$521K
49
$449K
50
$404K