ALEC Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 9.10%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $718,275.08

Alector Insider Trading History Chart

Alector Share Price & Price History

^$0.95

▲ +0.0457 (5.05%)

As of 04/11/2025 05:00 PM ET

Days: 30 | 90 | 365

Alector Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
12/2/2024	Arnon Rosenthal	CEO	Sell	52,172	$2.52	$131,473.44	2,507,074
12/2/2024	Marc Grasso	CFO	Sell	16,489	$2.52	$41,552.28	330,651
12/2/2024	Sara Kenkare-Mitra	Insider	Sell	26,500	$2.52	$66,780.00	565,215
9/3/2024	Arnon Rosenthal	CEO	Sell	26,499	$4.88	$129,315.12	1,948,746
9/3/2024	Marc Grasso	CFO	Sell	7,297	$4.88	$35,609.36	130,740
9/3/2024	Sara Kenkare-Mitra	Insider	Sell	13,926	$4.88	$67,958.88	291,715
8/12/2024	Paula Hammond	Director	Sell	10,500	$5.06	$53,130.00	60,209
6/3/2024	Arnon Rosenthal	CEO	Sell	25,135	$4.80	$120,648.00	1,975,245
6/3/2024	Gary Romano	Insider	Sell	8,040	$4.80	$38,592.00	188,273
6/3/2024	Marc Grasso	CFO	Sell	6,920	$4.80	$33,216.00	138,037
3/4/2024	Arnon Rosenthal	CEO	Sell	18,837	$6.92	$130,352.04	2,000,380
3/4/2024	Gary Romano	Insider	Sell	6,001	$6.92	$41,526.92	196,313
3/4/2024	Marc Grasso	CFO	Sell	5,716	$6.92	$39,554.72	144,957
12/4/2023	Arnon Rosenthal	CEO	Sell	23,831	$5.56	$132,500.36	2,019,217
12/4/2023	Gary Romano	Insider	Sell	5,035	$5.56	$27,994.60	202,314
12/4/2023	Marc Grasso	CFO	Sell	4,574	$5.56	$25,431.44	150,673
9/11/2023	Polaris Venture Management Co.	Major Shareholder	Sell	500,000	$6.00	$3,000,000.00	10,853,817
9/5/2023	Arnon Rosenthal	CEO	Sell	5,647	$5.19	$29,307.93	1,645,448
9/5/2023	Marc Grasso	CFO	Sell	1,114	$5.19	$5,781.66	32,247
9/5/2023	Sara Kenkare-Mitra	Insider	Sell	6,214	$5.19	$32,250.66	177,935
6/2/2023	Arnon Rosenthal	CEO	Sell	5,255	$6.90	$36,259.50	1,651,095
6/2/2023	Marc Grasso	CFO	Sell	1,050	$6.90	$7,245.00	33,361
6/2/2023	Sara Kenkare-Mitra	Insider	Sell	4,092	$6.90	$28,234.80	184,149
3/17/2023	Arnon Rosenthal	CEO	Sell	15,186	$6.22	$94,456.92	1,656,350
3/2/2023	Arnon Rosenthal	CEO	Sell	5,849	$8.32	$48,663.68	1,628,546
3/2/2023	Gary Romano	Insider	Sell	3,238	$8.32	$26,940.16	104,737
3/2/2023	Marc Grasso	CFO	Sell	1,291	$8.32	$10,741.12	34,411
6/2/2022	Robert King	Insider	Sell	177	$8.71	$1,541.67	529,471

See Full Table

SEC Filings (Institutional Ownership Changes) for Alector (NASDAQ:ALEC)

85.83% of Alector stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Alector Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
2/17/2025	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	160,570	$0.30M	0.0%	+12.2%	0.164%
2/17/2025	Velan Capital Investment Management LP	55,000	$0.10M	0.1%	N/A	0.056%
2/17/2025	Squarepoint Ops LLC	13,114	$25K	0.0%	N/A	0.013%
2/17/2025	Two Sigma Advisers LP	429,900	$0.81M	0.0%	+8.9%	0.439%
2/17/2025	Two Sigma Investments LP	407,989	$0.77M	0.0%	+55.4%	0.417%
2/17/2025	Tema Etfs LLC	14,344	$27K	0.0%	N/A	0.015%
2/17/2025	Sphera Funds Management LTD.	324,639	$0.61M	0.1%	-47.6%	0.332%
2/17/2025	ProShare Advisors LLC	27,367	$52K	0.0%	+30.3%	0.028%
2/17/2025	Nuveen Asset Management LLC	187,042	$0.35M	0.0%	-28.1%	0.191%
2/17/2025	OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC	50,000	$94K	0.0%	N/A	0.051%
2/17/2025	Millennium Management LLC	74,685	$0.14M	0.0%	+45.8%	0.076%
2/17/2025	Jacobs Levy Equity Management Inc.	1,059,691	$2M	0.0%	+4.1%	1.082%
2/17/2025	D. E. Shaw & Co. Inc.	368,977	$0.70M	0.0%	+93.2%	0.377%
2/17/2025	Deutsche Bank AG	1,106,287	$2.09M	0.0%	-4.2%	1.130%
2/17/2025	Deerfield Management Company L.P. Series C	1,066,962	$2.02M	0.0%	+1.1%	1.090%
2/17/2025	BNP Paribas Financial Markets	165,589	$0.31M	0.0%	+723.0%	0.169%
2/17/2025	Algert Global LLC	44,460	$84K	0.0%	-28.2%	0.045%
2/17/2025	Almitas Capital LLC	284,845	$0.54M	0.1%	N/A	0.291%
2/17/2025	5AM Venture Management LLC	995,841	$1.88M	0.4%	N/A	1.017%
2/14/2025	RA Capital Management L.P.	9,695,228	$18.32M	0.2%	N/A	9.900%
2/14/2025	Jane Street Group LLC	244,933	$0.46M	0.0%	+58.1%	0.250%
2/14/2025	Northern Trust Corp	759,874	$1.44M	0.0%	+5.6%	0.776%
2/14/2025	Tudor Investment Corp ET AL	40,796	$77K	0.0%	N/A	0.042%
2/14/2025	Boothbay Fund Management LLC	294,156	$0.56M	0.0%	+562.5%	0.300%
2/14/2025	Susquehanna Fundamental Investments LLC	145,037	$0.27M	0.0%	N/A	0.148%
2/14/2025	Price T Rowe Associates Inc. MD	746,088	$1.41M	0.0%	-8.6%	0.762%
2/14/2025	Diadema Partners LP	239,019	$0.45M	0.2%	N/A	0.244%
2/14/2025	Eversept Partners LP	200,095	$0.38M	0.0%	-39.9%	0.204%
2/14/2025	Hsbc Holdings PLC	57,983	$0.11M	0.0%	+26.1%	0.059%
2/14/2025	Tower Research Capital LLC TRC	14,670	$28K	0.0%	+71.1%	0.015%
2/14/2025	Dimensional Fund Advisors LP	882,120	$1.67M	0.0%	+21.7%	0.901%
2/13/2025	Walleye Capital LLC	146,679	$0.28M	0.0%	-28.1%	0.150%
2/13/2025	XTX Topco Ltd	50,971	$96K	0.0%	+78.3%	0.052%
2/13/2025	Renaissance Technologies LLC	915,738	$1.73M	0.0%	+63.0%	0.935%
2/13/2025	Invesco Ltd.	47,985	$91K	0.0%	+27.7%	0.049%
2/13/2025	ADAR1 Capital Management LLC	368,330	$0.70M	0.1%	-14.1%	0.376%
2/13/2025	Aristides Capital LLC	106,600	$0.20M	0.0%	N/A	0.109%
2/13/2025	Russell Investments Group Ltd.	56,239	$0.11M	0.0%	-22.6%	0.057%
2/13/2025	Wells Fargo & Company MN	37,966	$72K	0.0%	+50.0%	0.039%
2/12/2025	RPO LLC	26,395	$50K	0.0%	N/A	0.027%
2/12/2025	Geode Capital Management LLC	1,914,250	$3.62M	0.0%	+0.5%	1.955%
2/12/2025	Franklin Resources Inc.	930,534	$1.76M	0.0%	-3.4%	0.950%
2/12/2025	Alliancebernstein L.P.	82,100	$0.16M	0.0%	-88.5%	0.084%
2/12/2025	JPMorgan Chase & Co.	1,642,570	$3.10M	0.0%	-39.8%	1.677%
2/11/2025	American Century Companies Inc.	56,735	$0.11M	0.0%	-11.1%	0.058%
2/11/2025	Intech Investment Management LLC	35,382	$67K	0.0%	+83.5%	0.036%
2/6/2025	Charles Schwab Investment Management Inc.	643,456	$1.22M	0.0%	-15.4%	0.657%
2/4/2025	Los Angeles Capital Management LLC	90,736	$0.17M	0.0%	+61.2%	0.093%
1/30/2025	Vontobel Holding Ltd.	25,000	$47K	0.0%	+127.3%	0.026%
1/28/2025	Apollon Wealth Management LLC	25,000	$47K	0.0%	N/A	0.026%
1/17/2025	SG Americas Securities LLC	39,334	$74K	0.0%	+27.9%	0.040%
1/6/2025	Nordea Investment Management AB	165,713	$0.30M	0.0%	+5.1%	0.169%
12/26/2024	JPMorgan Chase & Co.	2,728,823	$12.72M	0.0%	+64.7%	2.786%
11/19/2024	Barclays PLC	176,800	$0.82M	0.0%	+132.4%	0.181%
11/16/2024	Geode Capital Management LLC	1,903,942	$8.87M	0.0%	+8.5%	1.944%
11/15/2024	Barclays PLC	176,800	$0.82M	0.0%	+132.4%	0.181%
11/15/2024	XTX Topco Ltd	28,590	$0.13M	0.0%	-8.0%	0.029%
11/15/2024	Jane Street Group LLC	154,942	$0.72M	0.0%	+24.2%	0.158%
11/15/2024	Wellington Management Group LLP	137,152	$0.64M	0.0%	N/A	0.140%
11/15/2024	Sphera Funds Management LTD.	620,000	$2.89M	0.5%	+1.6%	0.633%
11/15/2024	State Street Corp	2,616,809	$12.19M	0.0%	-6.2%	2.672%
11/15/2024	Stifel Financial Corp	179,296	$0.84M	0.0%	-16.2%	0.183%
11/15/2024	Point72 DIFC Ltd	6,148	$29K	0.0%	N/A	0.006%
11/15/2024	Point72 Asset Management L.P.	84,538	$0.39M	0.0%	-86.2%	0.086%
11/15/2024	Jacobs Levy Equity Management Inc.	1,017,687	$4.74M	0.0%	+18.5%	1.039%
11/15/2024	Point72 Asia Singapore Pte. Ltd.	8,676	$40K	0.0%	N/A	0.009%
11/15/2024	Erste Asset Management GmbH	19,000	$93K	0.0%	N/A	0.019%
11/14/2024	Braidwell LP	2,158,245	$10.06M	0.3%	-9.3%	2.204%
11/14/2024	Verition Fund Management LLC	64,369	$0.30M	0.0%	-88.0%	0.066%
11/14/2024	Walleye Capital LLC	204,067	$0.95M	0.0%	-26.7%	0.208%
11/14/2024	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	143,061	$0.67M	0.0%	-7.1%	0.146%
11/13/2024	BNP Paribas Financial Markets	20,120	$94K	0.0%	-70.2%	0.021%
11/13/2024	FMR LLC	14,595,014	$68.01M	0.0%	+1.0%	14.904%
11/12/2024	Valence8 US LP	14,708	$69K	0.0%	N/A	0.015%
11/12/2024	Charles Schwab Investment Management Inc.	760,606	$3.54M	0.0%	+14.1%	0.777%
11/12/2024	Massachusetts Financial Services Co. MA	174,718	$0.81M	0.0%	+54.7%	0.178%
11/9/2024	Intech Investment Management LLC	19,286	$90K	0.0%	N/A	0.020%
11/6/2024	Cornercap Investment Counsel Inc.	11,767	$55K	0.0%	-51.6%	0.012%
11/5/2024	Victory Capital Management Inc.	186,747	$0.87M	0.0%	+19.5%	0.192%
11/5/2024	Baillie Gifford & Co.	78,835	$0.37M	0.0%	-69.7%	0.081%
11/4/2024	Los Angeles Capital Management LLC	56,286	$0.26M	0.0%	-10.9%	0.058%
10/28/2024	US Bancorp DE	13,762	$64K	0.0%	-40.0%	0.014%
10/25/2024	China Universal Asset Management Co. Ltd.	18,718	$87K	0.0%	+65.3%	0.019%
10/16/2024	nVerses Capital LLC	11,000	$51K	0.0%	N/A	0.011%
10/11/2024	Creative Planning	19,117	$89K	0.0%	+54.2%	0.020%
10/3/2024	SG Americas Securities LLC	30,753	$0.14M	0.0%	-52.1%	0.032%
9/16/2024	Cubist Systematic Strategies LLC	92,218	$0.42M	0.0%	+73.1%	0.096%
8/21/2024	Truist Financial Corp	34,025	$0.15M	0.0%	-14.6%	0.035%
8/19/2024	Point72 Asset Management L.P.	614,385	$2.79M	0.0%	-11.6%	0.637%
8/16/2024	Algert Global LLC	43,512	$0.20M	0.0%	N/A	0.045%
8/15/2024	Susquehanna Fundamental Investments LLC	129,664	$0.59M	0.0%	+2.8%	0.135%
8/15/2024	The Manufacturers Life Insurance Company	124,819	$0.57M	0.0%	+5.8%	0.130%
8/15/2024	Deerfield Management Company L.P. Series C	1,148,326	$5.21M	0.1%	+7.0%	1.191%
8/15/2024	AQR Capital Management LLC	184,511	$0.84M	0.0%	-3.0%	0.191%
8/15/2024	Caxton Associates LP	20,282	$92K	0.0%	+41.3%	0.021%
8/14/2024	Cubist Systematic Strategies LLC	92,218	$0.42M	0.0%	+73.1%	0.096%
8/14/2024	Marshall Wace LLP	52,609	$0.24M	0.0%	-70.3%	0.055%
8/14/2024	ProShare Advisors LLC	15,639	$71K	0.0%	-20.7%	0.016%
8/14/2024	Profund Advisors LLC	19,475	$88K	0.0%	-55.0%	0.020%
8/12/2024	XTX Topco Ltd	31,069	$0.14M	0.0%	+62.7%	0.032%

Data available starting January 2016

See Full Table

Alector, Inc., a clinical stage biopharmaceutical company, develops therapies for the treatment of neurodegeneration diseases. Its products include AL001, an immune activity in the brain with genetic links to multiple neurodegenerative disorders, which is in Phase III clinical trial for the treatment of frontotemporal dementia, Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis diseases; and AL101 that is in Phase I clinical trial for the treatment of neurodegenerative diseases, including Alzheimer's and Parkinson's diseases. The company also offers AL002, a product candidate that is in Phase II clinical trial for the treatment of Alzheimer's disease. Alector, Inc. has a collaboration agreement with Adimab, LLC for the research and development of antibodies; and a strategic collaboration agreement with GlaxoSmithKline plc for the development and commercialization of monoclonal antibodies, such as AL001 and AL101 to treat neurodegenerative diseases. The company was founded in 2013 and is headquartered in South San Francisco, California.

Today's Range

Now: $0.95

$0.90

$0.97

50 Day Range

MA: $1.43

$0.90

$1.87

52 Week Range

Now: $0.95

$0.87

$6.78

Volume

565,681 shs

Average Volume

773,286 shs

Market Capitalization

$94.13 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.73

Who are the company insiders with the largest holdings of Alector?: Alector's top insider investors include:
Polaris Venture Management Co (Major Shareholder)
Arnon Rosenthal (CEO)
Sara Kenkare-Mitra (Insider)
Marc Grasso (CFO)
Gary Romano (Insider)
Paula Hammond (Director)
Learn More about top insider investors at Alector.