Alector, Inc. (ALEC) is held by institutional investors who disclose positions via SEC 13F filings. View the full list of institutional holders on HoldingsIntel.

Are institutions buying or selling ALEC?

HoldingsIntel tracks quarter-over-quarter changes in institutional positions for Alector, Inc., showing new buyers, position increases, decreases, and exits with conviction-weighted sentiment.

What is the Smart Money Verdict on ALEC?

The Smart Money Verdict combines four independent signals (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for Alector, Inc..

Is institutional money flowing into ALEC?

81 institutional investors hold Alector, Inc. (ALEC). View detailed buyer/seller breakdown on HoldingsIntel.

What do hedge funds think about ALEC?

Track institutional sentiment and conviction scores for Alector, Inc. (ALEC) including Smart Money Verdict and position changes on HoldingsIntel.

Alector, Inc.

ALEC·014442107·US·equity·Healthcare - Biotechnology-13D/G

ALEC (Alector, Inc.) is held by 81 institutional investors as of Q4 2025. Largest holders: BlackRock, Inc. ($11.2M), VANGUARD GROUP INC ($10.8M), BALYASNY ASSET MANAGEMENT L.P. ($5.1M). Net institutional sentiment: Mixed.

Holders

Avg rating(5 Elite)

$69.6M

Total Value

43% (99)

Fund Consensus

38 buying - 50 selling

Smart Money VerdictView all

41Weak MomentumStrong Convergence

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See how ALEC's score breaks down across 4 SEC sources

Held by 81 funds

5 elite

Who's Trading

ActivistThe Vanguard Group0.0%Mar 26, 2026

Insider

13F: Dec 31, 2025Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	7.1M(-0.7%)	$11.2M	0.0%	+22.67%	0
VANGUARD GROUP INC	Increased	6.9M(+14.5%)	$10.8M	0.0%	-49.48%	32
BALYASNY ASSET MANAGEMENT L.P.	New	3.3M	$5.1M	0.0%	+38.82%	37
D. E. Shaw & Co., Inc.	Increased	2.4M(+141.8%)	$3.7M	0.0%	-4.37%	43
FMR LLC	Decreased	2.2M(-85.3%)	$3.5M	0.0%	+22.22%	0
JACOBS LEVY EQUITY MANAGEMENT, INC	Increased	2.2M(+76.5%)	$3.4M	0.0%	-42.98%	40
GEODE CAPITAL MANAGEMENT, LLC	Increased	2.1M(+11.5%)	$3.2M	0.0%	-81.76%	29
STATE STREET CORP	Increased	1.8M(+4.6%)	$2.8M	0.0%	-69.94%	28
RENAISSANCE TECHNOLOGIES LLC	Increased	1.5M(+62.6%)	$2.4M	0.0%	-52.49%	38
MILLENNIUM MANAGEMENT LLC	Increased	1.3M(+15.4%)	$2.1M	0.0%	-16.19%	30
MARSHALL WACE, LLP	Increased	1.2M(+669.5%)	$1.8M	0.0%	+22.76%	42
TWO SIGMA INVESTMENTS, LP	Increased	1M(+238.4%)	$1.6M	0.0%	-23.06%	41
DEUTSCHE BANK AG\	Decreased	1M(-3.1%)	$1.6M	0.0%	-70.83%	0
JANE STREET GROUP, LLC	Increased	993,913(+183.8%)	$1.6M	0.0%	+1.63%	41
PANAGORA ASSET MANAGEMENT INC	Increased	850,298(+14.7%)	$1.3M	0.0%	-50.26%	29
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	665,491(-3.5%)	$1M	0.0%	-81.92%	0
TWO SIGMA ADVISERS, LP	Increased	651,800(+26.0%)	$1M	0.0%	-70.69%	31
MACKENZIE FINANCIAL CORP	Increased	660,168(+132.7%)	$1M	0.0%	+38.37%	40
AQR CAPITAL MANAGEMENT LLC	Increased	599,569(+36.9%)	$935,327	0.0%	-29.10%	33
XTX Topco Ltd	Increased	592,839(+501.8%)	$924,829	0.0%	+22.18%	40
NORTHERN TRUST CORP	Decreased	587,653(-7.3%)	$916,738	0.0%	-85.87%	0
GOLDMAN SACHS GROUP INC	Decreased	437,959(-28.2%)	$683,217	0.0%	-4.48%	0
BARCLAYS PLC	Decreased	398,687(-54.4%)	$621,952	0.0%	-39.88%	0
AMERIPRISE FINANCIAL INC	Increased	354,299(+29.3%)	$552,707	0.0%	-26.05%	30
MORGAN STANLEY	Decreased	319,072(-26.5%)	$497,753	0.0%	-35.99%	0
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Decreased	291,180(-5.7%)	$454,241	0.0%	-26.58%	0
Invesco Ltd.	Increased	279,468(+45.3%)	$435,970	0.0%	-20.13%	32
Bank of New York Mellon Corp	Decreased	217,862(-3.0%)	$339,866	0.0%	-80.02%	0
DIMENSIONAL FUND ADVISORS LP	Decreased	199,126(-32.7%)	$310,497	0.0%	-60.94%	0
CANADA PENSION PLAN INVESTMENT BOARD	New	172,300	$268,788	0.0%	+38.82%	32
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	Increased	136,000(+99.4%)	$212,160	0.0%	-3.92%	37
BANK OF AMERICA CORP /DE/	Decreased	134,506(-45.4%)	$209,829	0.0%	+24.73%	0
Utah Retirement Systems	Increased	133,718(+85.7%)	$208,600	0.0%	-54.98%	36
Nuveen, LLC	Unchanged	133,248	$207,867	0.0%	+60.91%	0
UBS Group AG	Decreased	119,411(-48.2%)	$186,281	0.0%	-47.48%	0
STRS OHIO	Unchanged	110,400	$172,224	0.0%	-83.42%	0
RHUMBLINE ADVISERS	Decreased	101,926(-10.8%)	$158,994	0.0%	-83.02%	0
CITADEL ADVISORS LLC	Decreased	93,547(-80.2%)	$145,934	0.0%	+40.96%	0
ALLIANCEBERNSTEIN L.P.	Unchanged	92,940	$144,986	0.0%	-67.11%	0
LOS ANGELES CAPITAL MANAGEMENT LLC	Increased	93,052(+2.0%)	$141,439	0.0%	-34.79%	23
WELLS FARGO & COMPANY/MN	Increased	90,108(+71.9%)	$140,569	0.0%	-25.96%	23
Man Group plc	New	86,162	$134,413	0.0%	+38.82%	31
SIMPLEX TRADING, LLC	Decreased	82,017(-18.8%)	$127,946	0.0%	-30.82%	0
Squarepoint Ops LLC	New	77,618	$121,084	0.0%	+38.82%	30
Russell Investments Group, Ltd.	Decreased	71,887(-31.4%)	$112,142	0.0%	-58.74%	0
Blackstone Inc.	Increased	66,859(+160.0%)	$104,300	0.0%	-40.60%	35
Quadrature Capital Ltd	New	62,273	$97,146	0.0%	+38.82%	30
Vanguard Personalized Indexing Management, LLC	Decreased	53,056(-9.0%)	$82,767	0.0%	+29.42%	0
HSBC HOLDINGS PLC	Decreased	48,521(-0.3%)	$75,693	0.0%	-62.54%	0
TUDOR INVESTMENT CORP ET AL	Unchanged	41,282	$64,400	0.0%	+21.56%	0
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Increased	37,271(+16.0%)	$58,143	0.0%	-48.49%	24
INTECH INVESTMENT MANAGEMENT LLC	Increased	34,510(+3.2%)	$53,836	0.0%	-16.40%	21
JPMORGAN CHASE & CO	Decreased	32,623(-76.1%)	$50,892	0.0%	-19.05%	0
PRUDENTIAL FINANCIAL INC	Increased	32,225(+15.0%)	$50,271	0.0%	+16.47%	24
Vontobel Holding Ltd.	Increased	30,000(+15.4%)	$46,800	0.0%	-24.02%	23
MANUFACTURERS LIFE INSURANCE COMPANY, THE	Decreased	28,829(-86.7%)	$44,973	0.0%	-62.65%	0
Police & Firemen's Retirement System of New Jersey	Unchanged	23,426	$36,545	0.0%	+1.22%	0
Point72 Asset Management, L.P.	Increased	23,102(+4162.4%)	$36,039	0.0%	+35.61%	22
BNP PARIBAS FINANCIAL MARKETS	Increased	22,385(+22.5%)	$34,921	0.0%	-12.95%	16
Virtu Financial LLC	New	21,886	$34,000	0.0%	+38.82%	27
HERSHEY TRUST CO	Increased	20,572(+100.0%)	$32,092	0.0%	-7.66%	35
SEI INVESTMENTS CO	Unchanged	16,884	$26,339	0.0%	+63.57%	0
ProShare Advisors LLC	Decreased	14,672(-4.9%)	$22,889	0.0%	-77.88%	0
Neuberger Berman Group LLC	New	14,173	$22,110	0.0%	+38.82%	29
VOYA INVESTMENT MANAGEMENT LLC	Unchanged	13,929	$21,729	0.0%	-84.44%	0
Cerity Partners LLC	Decreased	13,682(-49.0%)	$21,343	0.0%	+41.46%	0
NEW YORK STATE COMMON RETIREMENT FUND	Unchanged	10,310	$16,084	0.0%	-84.13%	0
Corient Private Wealth LLC	New	10,288	$16,049	0.0%	+38.82%	28
HighTower Advisors, LLC	New	10,011	$15,617	0.0%	+38.82%	28
CITIGROUP INC	Decreased	6,155(-88.6%)	$9,602	0.0%	+15.28%	0
Legal & General Group Plc	Unchanged	6,039	$9,421	0.0%	-85.50%	0
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	Decreased	4,940(-0.5%)	$7,706	0.0%	-30.82%	0
ROYAL BANK OF CANADA	Decreased	4,678(-99.3%)	$7,000	0.0%	-1.14%	0
NISA INVESTMENT ADVISORS, LLC	Decreased	1,016(-69.6%)	$1,585	0.0%	+30.92%	0
OSAIC HOLDINGS, INC.	Decreased	620(-44.6%)	$967	0.0%	-27.21%	0
Federation des caisses Desjardins du Quebec	Unchanged	415	$647	0.0%	-87.25%	0
Rockefeller Capital Management L.P.	Decreased	367(-73.2%)	$573	0.0%	-30.82%	0
NATIONAL BANK OF CANADA /FI/	Unchanged	200	$312	0.0%	-89.91%	0
HRT FINANCIAL LP	Decreased	57,341(-4.7%)	$89	0.0%	-30.82%	0
PRICE T ROWE ASSOCIATES INC /MD/	Decreased	56,203(-97.4%)	$89	0.0%	-11.87%	0
COMERICA BANK	Decreased	9(-57.1%)	$14	0.0%	-67.44%	0
Creative Planning	Exited	0(-100.0%)	$46,535	0.0%	-50.16%	0
Engineers Gate Manager LP	Exited	0(-100.0%)	$42,899	0.0%	-50.16%	0
Belvedere Trading LLC	Exited	0(-100.0%)	$31,039	0.0%	-50.16%	0
Savant Capital, LLC	Exited	0(-100.0%)	$34,627	0.0%	-50.16%	0
Optiver Holding B.V.	Exited	0(-100.0%)	$3,013	0.0%	-50.16%	0
MetLife Investment Management, LLC	Exited	0(-100.0%)	$85,307	0.0%	-50.16%	0
PNC FINANCIAL SERVICES GROUP, INC.	Exited	0(-100.0%)	$1,095	0.0%	-14.70%	0
BANK OF MONTREAL /CAN/	Exited	0(-100.0%)	$155,045	0.0%	+2.70%	0
TD ASSET MANAGEMENT INC	Exited	0(-100.0%)	$810,264	0.0%	-40.81%	0
IEQ CAPITAL, LLC	Exited	0(-100.0%)	$157,028	0.0%	+17.83%	0
AMERICAN CENTURY COMPANIES INC	Exited	0(-100.0%)	$60,624	0.0%	-50.16%	0
Allworth Financial LP	Exited	0(-100.0%)	$249	0.0%	+2.70%	0
Erste Asset Management GmbH	Exited	0(-100.0%)	$57,950	0.0%	-89.52%	0
Mirae Asset Global Investments Co., Ltd.	Exited	0(-100.0%)	$11,582	0.0%	-81.49%	0
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	Exited	0(-100.0%)	$36,748	0.0%	-50.16%	0
RTW INVESTMENTS, LP	Exited	0(-100.0%)	$20.7M	0.0%	-50.16%	0
NewEdge Advisors, LLC	Exited	0(-100.0%)	$95	0.0%	-83.53%	0
GROUP ONE TRADING LLC	Exited	0(-100.0%)	$66,070	0.0%	-50.16%	0

Alector, Inc.

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