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D. E. Shaw & Co., Inc.

Position in ALEC — Alector, Inc.

CIK 1009207 New York, NY

Position in ALEC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$7,165,594
+$3,475,960 QoQ
Shares Held
3,332,835
+40.9% QoQ
Ownership
3.00%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2020
15 quarters on record
Voting authority Sole 99% Shared 0% None 1%

Common Shares in ALEC Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

D. E. Shaw & Co., Inc. holds $4,382,181,502 across 180 Biotechnology names. ALEC ranks #76 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALEC

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15 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $7,165,594 3,332,835
2025-12-31 $3,689,634 2,365,151
2025-09-30 $2,895,483 978,204
2025-06-30 $747,879 534,200
2025-03-31 $577,240 469,301
2024-12-31 $697,365 368,977
2024-09-30 $890,022 190,992
2024-06-30 $1,599,183 352,243
2024-03-31 $1,984,342 329,625
2023-12-31 $1,469,492 184,147
2023-09-30 $771,236 119,018
2023-06-30 $109,351 18,195
2021-09-30 $879,665 38,548
2021-06-30 $793,143 38,077
2020-12-31 $195,207 12,902