CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Position in ALEC — Alector, Inc.

CIK 884546 SAN FRANCISCO, CA

Position in ALEC

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,645,850

-$47,077 QoQ

Shares Held

818,831

+4.0% QoQ

Ownership

0.733%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#33

of 140 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $7,402,603,842 across 299 Biotechnology names. ALEC ranks #197 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	2,041,282	$1,013,966,007
2	REGN	Regeneron Pharmaceuticals, Inc.	846,306	$527,705,642
3	RVMD	Revolution Medicines, Inc.	1,917,025	$359,020,441
4	MRNA	Moderna, Inc.	4,838,884	$338,867,045
5	ALNY	Alnylam Pharmaceuticals, Inc.	755,377	$227,391,137
6	INCY	Incyte Corp	1,692,439	$191,854,884
7	RPRX	Royalty Pharma plc	3,083,528	$172,893,414
8	CYTK	Cytokinetics Inc	1,565,781	$133,388,883

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,645,850	818,831	+4.0%	Shares	Sole	2026-08-14
2026-03-31	$1,692,927	787,408	+18.3%	Shares	Sole	2026-05-15
2025-12-31	$1,038,165	665,491	-3.5%	Shares	Sole	2026-02-13
2025-09-30	$2,040,991	689,524	+6.5%	Shares	Sole	2025-11-10
2025-06-30	$906,714	647,653	+3.7%	Shares	Sole	2025-08-12
2025-03-31	$768,417	624,730	-2.9%	Shares	Sole	2025-09-15
2024-12-31	$1,216,131	643,456	-15.4%	Shares	Sole	2025-02-06
2024-09-30	$3,544,423	760,606	+14.1%	Shares	Sole	2024-11-12
2024-06-30	$3,025,732	666,461	-1.2%	Shares	Sole	2024-08-12
2024-03-31	$4,062,235	674,790	+35.1%	Shares	Sole	2024-05-09
2023-12-31	$3,986,241	499,529	+3.6%	Shares	Sole	2024-02-06
2023-09-30	$3,124,798	482,222	+2.7%	Shares	Sole	2023-11-08
2023-06-30	$2,822,614	469,653	+2.3%	Shares	Sole	2023-08-10
2023-03-31	$2,840,881	458,947	+0.8%	Shares	Sole	2023-05-12
2022-12-31	$4,203,794	455,449	+2.3%	Shares	Sole	2023-02-13
2022-09-30	$4,212,263	445,271	+4.0%	Shares	Sole	2022-11-14
2022-06-30	$4,348,561	428,008	+1.3%	Shares	Sole	2022-08-15
2022-03-31	$6,023,418	422,696	+2.4%	Shares	Sole	2022-05-13
2021-12-31	$8,523,659	412,768	+1.6%	Shares	Sole	2022-02-11
2021-09-30	$9,267,475	406,112	+8.5%	Shares	Sole	2021-11-16
2021-06-30	$7,794,440	374,193	+8.3%	Shares	Sole	2021-08-16
2021-03-31	$6,961,109	345,636	+3.4%	Shares	Sole	2021-05-17
2020-12-31	$5,055,538	334,140	-0.2%	Shares	Sole	2021-02-16
2020-09-30	$3,526,854	334,775	+23.8%	Shares	Sole	2020-11-13
2020-06-30	$6,611,117	270,504	+18.7%	Shares	Sole	2020-08-20
2020-03-31	$5,499,468	227,910	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.