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TWO SIGMA INVESTMENTS, LP

Position in ALEC — Alector, Inc.

CIK 1179392 NEW YORK, NY

Position in ALEC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$2,750,507
+$1,128,644 QoQ
Shares Held
1,279,306
+23.1% QoQ
Ownership
1.15%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
23 quarters on record
Voting authority Sole 97% Shared 0% None 3%

Common Shares in ALEC Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

TWO SIGMA INVESTMENTS, LP holds $5,513,200,662 across 316 Biotechnology names. ALEC ranks #142 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALEC

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23 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $2,750,507 1,279,306
2025-12-31 $1,621,863 1,039,656
2025-09-30 $909,249 307,179
2025-06-30 $310,994 222,139
2025-03-31 $263,742 214,425
2024-12-31 $771,099 407,989
2024-09-30 $1,223,352 262,522
2024-06-30 $1,371,706 302,138
2024-03-31 $2,195,066 364,629
2023-12-31 $1,536,525 192,547
2023-09-30 $663,752 102,431
2023-06-30 $1,729,173 287,716
2023-03-31 $2,267,427 366,305
2022-12-31 $2,311,995 250,487
2022-09-30 $2,643,436 279,433
2022-06-30 $2,654,056 261,226
2022-03-31 $4,001,613 280,815
2021-12-31 $7,183,866 347,887
2021-09-30 $7,769,890 340,486
2020-12-31 $945,625 62,500
2020-09-30 $4,925,007 467,490
2020-06-30 $4,470,173 182,904
2020-03-31 $948,381 39,303