ALEC Alector, Inc.

NASDAQ
$2.14

Alector, Inc. (ALEC) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+17.65
10 buyers / 7 sellers
BUYING
Funds compared
18
funds with comparable ALEC positions
18 current holders · 15 prior-quarter holders
Net share change
+9.09M
+10.16M added, -1.07M cut
Position activity
3 new 7 increased 7 reduced 0 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Qube Research & Technologies Ltd Quant New +16.6K — $33.3K 0.0% 55
Nantahala Capital Management Event Long/Short Increased +5.82M +206.7% $11.7M 0.5% 54
LMR Partners Event Quant New +200.0K — $402.0K 0.0% 53
Affinity Asset Advisors Long/Short Growth Increased +1.01M +202.0% $2.0M 0.2% 52
CITADEL ADVISORS LLC Quant Increased +313.7K +404.5% $630.5K 0.0% 52
ADAR1 Capital Management Long/Short Growth Increased +1.83M +174.6% $3.7M 0.3% 50
Graham Capital Management Quant Macro New +46.5K — $93.5K 0.0% 49
Point72 Asset Management, L.P. Reduced -53.4K -66.7% $107.3K 0.0% 45
AQR Capital Management Long/Short Quant Increased +598.2K +84.1% $1.2M 0.0% 43
RENAISSANCE TECHNOLOGIES LLC Quant Reduced -352.5K -27.4% $708.6K 0.0% 34

Most significant buyers

By move score, not size.

  • Qube Research & Technologies Ltd New · +16.6K
  • Nantahala Capital Management Increased · +5.82M
  • LMR Partners New · +200.0K
  • Affinity Asset Advisors Increased · +1.01M
  • CITADEL ADVISORS LLC Increased · +313.7K

Most significant sellers

By move score, not size.

  • Point72 Asset Management, L.P. Reduced · -53.4K
  • RENAISSANCE TECHNOLOGIES LLC Reduced · -352.5K
  • TWO SIGMA INVESTMENTS, LP Reduced · -233.9K
  • D. E. Shaw & Co., Inc. Reduced · -372.9K
  • Quadrature Capital Reduced · -5.3K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Qube Research & Technologies Ltd 2 16.6K 0 +16.6K — 0.0% New 55
Nantahala Capital Management 3 8.6M 2.8M +5.82M +206.7% 0.5% Increased 54
LMR Partners 3 200.0K 0 +200.0K — 0.0% New 53
Affinity Asset Advisors 2 1.5M 500.0K +1.01M +202.0% 0.2% Increased 52
CITADEL ADVISORS LLC 1 391.2K 77.5K +313.7K +404.5% 0.0% Increased 52
ADAR1 Capital Management 3 2.9M 1.1M +1.83M +174.6% 0.3% Increased 50
Graham Capital Management 3 46.5K 0 +46.5K — 0.0% New 49
Point72 Asset Management, L.P. 1 26.7K 80.1K -53.4K -66.7% 0.0% Reduced 45
AQR Capital Management 3 1.3M 711.3K +598.2K +84.1% 0.0% Increased 43
RENAISSANCE TECHNOLOGIES LLC 1 935.2K 1.3M -352.5K -27.4% 0.0% Reduced 34
TWO SIGMA INVESTMENTS, LP 2 1.0M 1.3M -233.9K -18.3% 0.0% Reduced 30
D. E. Shaw & Co., Inc. 1 3.0M 3.3M -372.9K -11.2% 0.0% Reduced 30
Balyasny Asset Management L.P. 2 3.2M 2.9M +312.2K +10.6% 0.0% Increased 29
Quadrature Capital 3 14.2K 19.5K -5.3K -27.3% 0.0% Reduced 28
MILLENNIUM MANAGEMENT LLC 2 2.0M 2.0M +9.6K +0.5% 0.0% Increased 26
MARSHALL WACE, LLP 2 598.6K 620.4K -21.9K -3.5% 0.0% Reduced 26
Boothbay Fund Management 4 532.9K 559.7K -26.9K -4.8% 0.0% Reduced 19
Deerfield Management 1 1.1M 1.1M 0 +0.0% 0.0% Unchanged 25

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.