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RENAISSANCE TECHNOLOGIES LLC

Position in ALEC — Alector, Inc.

CIK 1037389 NEW YORK, NY

Position in ALEC

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$2,768,535
+$360,441 QoQ
Shares Held
1,287,691
-16.6% QoQ
Ownership
1.16%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2020
19 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ALEC Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

RENAISSANCE TECHNOLOGIES LLC holds $3,450,872,574 across 330 Biotechnology names. ALEC ranks #115 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALEC

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19 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $2,768,535 1,287,691
2025-12-31 $2,408,094 1,543,650
2025-09-30 $2,809,484 949,150
2025-06-30 $1,756,790 1,254,850
2025-03-31 $1,271,641 1,033,855
2024-12-31 $1,730,744 915,738
2024-09-30 $2,617,755 561,750
2024-06-30 $2,973,927 655,050
2024-03-31 $4,066,407 675,483
2023-12-31 $4,564,424 571,983
2023-09-30 $3,254,275 502,203
2023-06-30 $4,129,368 687,083
2023-03-31 $4,023,258 649,961
2022-12-31 $5,462,424 591,812
2022-09-30 $6,816,715 720,583
2022-06-30 $9,820,483 966,583
2022-03-31 $10,057,365 705,780
2021-12-31 $5,647,362 273,480
2020-06-30 $1,705,423 69,780