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Alector
ALEC

136 hedge funds and large institutions have $98.7M invested in Alector in 2025 Q2 according to their latest regulatory filings, with 17 funds opening new positions, 47 increasing their positions, 37 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,105% more call options, than puts

Call options by funds: $229K | Put options by funds: $19K

27% more repeat investments, than reductions

Existing positions increased: 47 | Existing positions reduced: 37

10% more capital invested

Capital invested by funds: $89.8M → $98.7M (+$8.93M)

0% more funds holding in top 10

Funds holding in top 10: 3 → 3 (0)

2.77% less ownership

Funds ownership: 73.28% → 70.51% (-2.8%)

4% less funds holding

Funds holding: 141 → 136 (-5)

23% less first-time investments, than exits

New positions opened: 17 | Existing positions closed: 22

Holders
136
Holders Change
-5
Holders Change %
-3.55%
% of All Funds
1.79%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
17
Increased
47
Reduced
37
Closed
22
Calls
$229K
Puts
$19K
Net Calls
+$210K
Net Calls Change
-$163K

Top Buyers

Rank Fund Capital Flow
1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$5.26M
2
EP
Eversept Partners
New York
+$1.71M
3
ACM
ADAR1 Capital Management
Texas
+$1.68M
4
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$914K
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$762K

Top Sellers

Rank Fund Capital Flow
1
RCM
RA Capital Management
Massachusetts
-$11.9M
2
JP Morgan Chase
JP Morgan Chase
New York
-$1.8M
3
Franklin Resources
Franklin Resources
California
-$1.03M
4
AC
Almitas Capital
California
-$396K
5
BlackRock
BlackRock
New York
-$383K
Name Holding Trade Value Shares
Change 		Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$21M +$762K +608,650 +4%
BlackRock
2
BlackRock
New York
$11.2M -$383K -306,122 -4%
Vanguard Group
3
Vanguard Group
Pennsylvania
$8.38M -$81.8K -65,337 -1%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$6.83M +$5.26M +4,198,951 +621%
MC
5
Merck & Co
New Jersey
$4.96M – – –
Acadian Asset Management
6
Acadian Asset Management
Massachusetts
$3.03M +$914K +729,727 +51%
EP
7
Eversept Partners
New York
$2.78M +$1.71M +1,368,654 +222%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$2.78M +$25K +19,970 +1%
ACM
9
ADAR1 Capital Management
Texas
$2.41M +$1.68M +1,343,196 +353%
State Street
10
State Street
Massachusetts
$2.39M +$87.2K +69,640 +4%
Jacobs Levy Equity Management
11
Jacobs Levy Equity Management
New Jersey
$1.85M -$14K -11,150 -0.8%
EC
12
Euclidean Capital
New York
$1.83M – – –
Renaissance Technologies
13
Renaissance Technologies
New York
$1.76M +$277K +220,995 +21%
DM
14
Deerfield Management
New York
$1.48M – – –
5VM
15
5AM Venture Management
California
$1.39M – – –
Deutsche Bank
16
Deutsche Bank
Germany
$1.39M -$140K -111,800 -10%
VPC
17
Vestal Point Capital
New York
$1.37M +$591K +472,452 +94%
DCM
18
DAFNA Capital Management
California
$1.28M – – –
IC
19
Ikarian Capital
Texas
$1.26M -$62.6K -50,000 -5%
SCM
20
Sio Capital Management
New York
$1.18M +$10.5K +8,372 +1%
Northern Trust
21
Northern Trust
Illinois
$921K -$48.9K -39,068 -6%
TD Asset Management
22
TD Asset Management
Ontario, Canada
$912K +$676K +540,000 +483%
Charles Schwab
23
Charles Schwab
California
$907K +$28.7K +22,923 +4%
Morgan Stanley
24
Morgan Stanley
New York
$849K +$325K +259,845 +75%
Citadel Advisors
25
Citadel Advisors
Florida
$773K +$684K +546,382 +10,047%
1
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ALEC Hedge Fund Activity: Q2 2025 in Review

136 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Alector (ALEC) for Q2 2025, worth a combined $98.7M — up 9.9% from $89.8M a quarter earlier.

Sellers outnumbered buyers: 22 funds closed out of ALEC and 17 opened new positions — a net loss of 5 holders — while 37 trimmed existing stakes and 47 added.

The largest buyer was T. Rowe Price Associates, adding an estimated $5.26M. The largest seller was RA Capital Management, exiting entirely with an estimated $11.9M sold.

  • 136 institutional investors held Alector (ALEC) as of Q2 2025, down from 141 in Q1 2025.
  • Funds reported $98.7M of Alector stock for Q2 2025, up 9.9% quarter-over-quarter.
  • 17 funds opened new Alector positions in Q2 2025 and 22 closed out, a net change of -5 holders.
  • The largest Alector buyer in Q2 2025 was T. Rowe Price Associates, an estimated $5.26M added.
  • The largest Alector seller in Q2 2025 was RA Capital Management, an estimated $11.9M sold.

Based on aggregated 13F filings for Q2 2025.