FMR LLC

Position in ALEC — Alector, Inc.

CIK 315066 BOSTON, MA

Back to ALEC Full portfolio

Position in ALEC

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$3,861,623

+$380,997 QoQ

Shares Held

1,796,104

-19.5% QoQ

Ownership

1.62%

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 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

FMR LLC holds $49,690,752,415 across 354 Biotechnology names. ALEC ranks #173 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALNY	Alnylam Pharmaceuticals, Inc.	14,579,166	$4,823,808,652
2	ARGX	Argenx SE	4,991,034	$3,644,702,577
3	MRNA	Moderna, Inc.	45,672,024	$2,320,138,818
4	ROIV	Roivant Sciences Ltd.	77,981,253	$2,160,080,705
5	INSM	INSMED Inc	13,160,167	$2,151,950,504
6	IONS	Ionis Pharmaceuticals Inc	24,556,637	$1,843,957,869
7	RPRX	Royalty Pharma plc	25,152,242	$1,206,553,046
8	REGN	Regeneron Pharmaceuticals, Inc.	1,518,192	$1,173,015,865

All Filings in ALEC

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$3,861,623	1,796,104	-19.5%	Shares	Defined	2026-05-15
2025-12-31	$3,480,626	2,231,171	-85.3%	Shares	Defined	2026-02-17
2025-09-30	$44,938,272	15,181,849	+1.2%	Shares	Defined	2025-11-13
2025-06-30	$20,998,443	14,998,889	+4.2%	Shares	Defined	2025-08-14
2025-03-31	$17,699,993	14,390,239	-2.0%	Shares	Defined	2025-05-12
2024-12-31	$27,763,844	14,689,865	+0.6%	Shares	Defined	2025-02-13
2024-09-30	$68,012,763	14,595,014	+1.0%	Shares	Defined	2024-11-13
2024-06-30	$65,635,778	14,457,220	+0.7%	Shares	Defined	2024-08-13
2024-03-31	$86,461,574	14,362,388	+13.8%	Shares	Defined	2024-05-13
2023-12-31	$100,710,822	12,620,404	+3.7%	Shares	Defined	2024-02-13
2023-09-30	$78,874,851	12,172,045	+58.3%	Shares	Defined	2023-11-13
2023-06-30	$46,220,655	7,690,625	+20.4%	Shares	Defined	2023-08-11
2023-03-31	$39,537,856	6,387,376	+35.6%	Shares	Defined	2023-08-11
2022-12-31	$43,491,205	4,711,940	-0.3%	Shares	Defined	2023-02-13
2022-09-30	$44,690,780	4,724,184	+0.5%	Shares	Defined	2022-11-10
2022-06-30	$47,747,822	4,699,589	+1.0%	Shares	Defined	2022-08-12
2022-03-31	$66,334,861	4,655,078	+0.9%	Shares	Defined	2022-05-13
2021-12-31	$95,294,132	4,614,728	-4.5%	Shares	Defined	2022-02-14
2021-09-30	$110,261,538	4,831,794	+18.1%	Shares	Defined	2022-02-14
2021-06-30	$85,238,276	4,092,092	+8.9%	Shares	Defined	2021-08-13
2021-03-31	$75,681,930	3,757,792	+31.2%	Shares	Defined	2021-05-14
2020-12-31	$43,318,581	2,863,092	+1.2%	Shares	Defined	2021-02-08
2020-09-30	$29,815,019	2,830,092	-18.7%	Shares	Defined	2020-11-13
2020-06-30	$85,099,713	3,481,985	-3.2%	Shares	Defined	2020-08-24
2020-03-31	$86,818,412	3,597,945	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.