MILLENNIUM MANAGEMENT LLC

Position in ALEC — Alector, Inc.

CIK 1273087 NEW YORK, NY

Position in ALEC

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

Position Value

$3,997,558

-$257,777 QoQ

Shares Held

1,988,835

+0.5% QoQ

Ownership

1.78%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#15

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

MILLENNIUM MANAGEMENT LLC holds $4,631,421,099 across 322 Biotechnology names. ALEC ranks #184 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	468,410	$232,673,299
2	INSM	INSMED Inc	2,048,005	$218,358,293
3	APGE	Apogee Therapeutics, Inc.	1,491,404	$197,954,052
4	JAZZ	Jazz Pharmaceuticals plc	763,880	$184,072,163
5	ONC	BeOne Medicines Ltd.	543,323	$154,830,755
6	AXSM	Axsome Therapeutics, Inc.	556,088	$136,113,659
7	BMRN	Biomarin Pharmaceutical Inc	2,071,816	$118,549,311
8	REGN	Regeneron Pharmaceuticals, Inc.	165,120	$102,958,924

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$3,997,558	1,988,835	+0.5%	Shares	Sole	2026-08-14
2026-03-31	$4,255,335	1,979,226	+48.5%	Shares	Sole	2026-05-15
2025-12-31	$2,079,345	1,332,914	+15.4%	Shares	Sole	2026-02-17
2025-09-30	$3,418,879	1,155,027	+181.2%	Shares	Sole	2025-11-14
2025-06-30	$575,124	410,803	+55.1%	Shares	Sole	2025-08-14
2025-03-31	$325,723	264,816	+254.6%	Shares	Sole	2025-05-15
2024-12-31	$141,154	74,685	+45.8%	Shares	Sole	2025-02-14
2024-09-30	$238,675	51,218	-67.3%	Shares	Sole	2024-11-14
2024-06-30	$711,781	156,780	+53.4%	Shares	Sole	2024-08-14
2024-03-31	$615,256	102,202	-56.6%	Shares	Sole	2024-05-15
2023-12-31	$1,880,367	235,635	-34.0%	Shares	Sole	2024-02-14
2023-09-30	$2,311,837	356,765	+490.0%	Shares	Sole	2023-11-14
2023-06-30	$363,394	60,465	+216.9%	Shares	Sole	2023-08-14
2023-03-31	$118,105	19,080	-62.2%	Shares	Sole	2023-05-15
2022-12-31	$466,133	50,502	-71.4%	Shares	Sole	2023-02-14
2022-09-30	$1,670,361	176,571	-71.3%	Shares	Sole	2022-11-14
2022-06-30	$6,245,799	614,744	-46.1%	Shares	Sole	2022-08-15
2022-03-31	$16,246,268	1,140,089	+191.4%	Shares	Sole	2022-05-16
2021-12-31	$8,078,403	391,206	+82.3%	Shares	Sole	2022-02-14
2021-09-30	$4,896,031	214,550	+262.8%	Shares	Sole	2021-11-15
2021-06-30	$1,231,844	59,138	+182.2%	Shares	Sole	2021-08-16
2021-03-31	$421,993	20,953	-71.9%	Shares	Sole	2021-05-17
2020-12-31	$1,127,502	74,521	-72.6%	Shares	Sole	2021-02-16
2020-09-30	$2,863,065	271,767	+67.1%	Shares	Sole	2020-11-16
2020-06-30	$3,974,823	162,636	+203.0%	Shares	Sole	2020-08-14
2020-03-31	$1,295,177	53,675	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.