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RHUMBLINE ADVISERS

Position in ALEC — Alector, Inc.

CIK 1115418 BOSTON, MA

Position in ALEC

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$217,853
+$58,849 QoQ
Shares Held
101,327
-0.6% QoQ
Ownership
0.091%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 22% Shared 0% None 78%

Common Shares in ALEC Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $1,238,289,073 across 287 Biotechnology names. ALEC ranks #199 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ALEC

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $217,853 101,327
2025-12-31 $159,004 101,926
2025-09-30 $338,239 114,270
2025-06-30 $177,195 126,568
2025-03-31 $143,461 116,635
2024-12-31 $219,041 115,895
2024-09-30 $531,258 114,004
2024-06-30 $499,054 109,924
2024-03-31 $550,986 91,526
2023-12-31 $699,032 87,598
2023-09-30 $568,172 87,681
2023-06-30 $544,584 90,613
2023-03-31 $512,730 82,832
2022-12-31 $768,877 83,302
2022-09-30 $747,983 79,068
2022-06-30 $765,108 75,306
2022-03-31 $875,976 61,472
2021-12-31 $1,233,197 59,719
2021-09-30 $1,383,462 60,625
2021-06-30 $1,209,743 58,077
2021-03-31 $1,124,436 55,831
2020-12-31 $905,258 59,832
2020-09-30 $600,621 57,012
2020-06-30 $1,624,209 66,457
2020-03-31 $1,057,690 43,833