AlectorALEC

13F holders, Q3 2024 (September 30)
159holders −1
17new positions
19sold out
6famous investors
$4.66avg. 13F price*

At the end of Q3 2024, 159 institutions reported holding Alector Inc. (ALEC) in their 13F filings, down 1 from Q2 2024. 17 opened new positions and 19 sold out. The largest holders were FMR LLC ($68.0M), BlackRock, Inc. ($43.6M) and Vanguard Group Inc. ($25.4M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Steve Cohen (0.0% of Point72 Asset Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).

Company
Alector Inc.
CUSIP
014442107
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200 Q1 2024: 157Q1 2024Q2 2024: 160Q2 2024Q3 2024: 159Q3 2024Q4 2024: 150Q4 2024Q1 2025: 141Q1 2025Q2 2025: 136Q2 2025Q3 2025: 149Q3 2025Q4 2025: 131Q4 2025Q1 2026: 138Q1 2026Q2 2026: 140Q2 2026

Total Exit/New Position Q2 2024 → Q3 2024

InstitutionsTotal Value
New Positions17$3.5M
Exits19$2.9M

All 13F filers, Q2 2024 → Q3 2024: 5,442,851 shares bought and 5,825,716 shares sold, net −382,865 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 159 holders

FMR LLC 0.00% Add +0.9% 14,595,014 $68.0M
BlackRock, Inc. 0.00% — 9,352,044 $43.6M
Vanguard Group Inc. 0.00% Add +2.5% 5,455,727 $25.4M
Deep Track Capital, LP 0.69% No change 4,631,998 $21.6M
Morgan Stanley 0.00% Add +45.0% 4,355,770 $20.3M
JPMorgan Chase & Co. 0.00% Add +64.7% 2,728,823 $12.7M
State Street Corp. 0.00% Reduce -6.2% 2,616,809 $12.2M
Braidwell LP 0.43% Reduce -9.3% 2,158,245 $10.1M
Geode Capital Management, LLC 0.00% Add +8.4% 1,903,942 $8.9M
Euclidean Capital LLC 0.67% No change 1,307,858 $6.1M
Soleus Capital Management, L.P. 0.47% Reduce -46.1% 1,207,371 $5.6M
Deutsche Bank AG 0.00% Reduce -48.2% 1,154,337 $5.4M
Deerfield Management Company, L.P. 0.08% Reduce -8.1% 1,055,192 $4.9M
Jacobs Levy Equity Management, Inc. 0.02% Add +18.5% 1,017,687 $4.7M
Franklin Resources Inc. 0.00% Add +0.0% 963,484 $4.7M
Baker Bros. Advisors LP 0.05% No change 927,264 $4.3M
DAFNA Capital Management LLC 1.02% No change 912,928 $4.3M
T. Rowe Price Associates Inc. 0.00% Reduce -6.1% 816,458 $3.8M
Charles Schwab Investment Management Inc. 0.00% Add +14.1% 760,606 $3.5M
Acadian Asset Management LLC 0.01% Add +25.3% 740,235 $3.4M
Dimensional Fund Advisors LP 0.00% Add +7.2% 724,889 $3.4M
Northern Trust Corp. 0.00% Add +10.9% 719,583 $3.4M
Alliancebernstein L.P. 0.00% Reduce -7.2% 711,545 $3.3M
Alyeska Investment Group, L.P. 0.02% Add +156.1% 656,182 $3.1M
Sphera Funds Management LTD. 0.47% Add +1.6% 620,000 $2.9M
Renaissance Technologies 0.00% Reduce -14.2% 561,750 $2.6M
Goldman Sachs Group Inc. 0.00% Add +31.6% 511,293 $2.4M
ADAR1 Capital Management, LLC 0.34% Add +119.5% 428,802 $2.0M
Two Sigma Advisers, LP 0.00% Reduce -17.7% 394,900 $1.8M
Panagora Asset Management Inc. 0.01% Add +7.6% 382,409 $1.8M
Bank of America Corp. 0.00% Add +1.0% 362,900 $1.7M
New Leaf Venture Partners, L.L.C. 1.63% No change 339,569 $1.6M
Eversept Partners, LP 0.12% Reduce -38.6% 332,756 $1.6M
Two Sigma Investments, LP 0.00% Reduce -13.1% 262,522 $1.2M
Nuveen Asset Management, LLC 0.00% Reduce -3.3% 260,106 $1.2M
Jupiter Asset Management Ltd. 0.01% No change 232,219 $1.1M
Bank of New York Mellon Corp 0.00% Reduce -19.2% 226,109 $1.1M
AQR Capital Management 0.00% Add +12.7% 208,001 $969K
Walleye Capital LLC 0.01% Reduce -26.7% 204,067 $951K
Citadel Advisors 0.00% New 195,784 $912K
Artia Global Partners LP 0.25% New 193,317 $901K
D. E. Shaw & Co. 0.00% Reduce -45.8% 190,992 $890K
Victory Capital Management Inc. 0.00% Add +19.5% 186,747 $870K
Stifel Financial Corp. 0.00% Reduce -16.2% 179,296 $836K
Barclays PLC 0.00% Add +132.4% 176,800 $824K
Ameriprise Financial Inc. 0.00% Add +70.9% 176,209 $821K
Alphabet Inc. 0.04% No change 175,866 $820K
Massachusetts Financial Services Co. 0.00% Add +54.7% 174,718 $814K
Medici Capital LLC 1.52% No change 167,191 $779K
Nordea Investment Management AB 0.00% Reduce -1.4% 157,742 $762K
Jane Street Group, LLC 0.00% Add +24.2% 154,942 $722K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -7.1% 143,061 $667K
Wellington Management Group LLP 0.00% New 137,152 $639K
Swiss National Bank 0.00% No change 131,900 $615K
Manufacturers Life Insurance Company, The 0.00% Reduce -0.9% 123,716 $577K
TD Asset Management Inc 0.00% No change 111,738 $550K
UBS Group AG 0.00% Add +10.7% 116,952 $545K
Rhumbline Advisers 0.00% Add +3.7% 114,004 $531K
DekaBank Deutsche Girozentrale 0.00% No change 100,000 $491K
STRS Ohio 0.00% No change 102,600 $478K
Trexquant Investment LP 0.01% Reduce -30.1% 102,463 $477K
Cercano Management LLC 0.01% New 93,633 $436K
Point72 Asset Management 0.00% Reduce -86.2% 84,538 $394K
Baillie Gifford & Co. 0.00% Reduce -69.7% 78,835 $367K
Alps Advisors Inc. 0.00% Add +2.7% 77,232 $360K
Susquehanna International Group, LLP 0.00% Add +269.9% 76,540 $357K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +9.9% 74,887 $350K
Rafferty Asset Management, LLC 0.00% Reduce -27.7% 72,750 $339K
Russell Investments Group, Ltd. 0.00% Reduce -13.3% 72,625 $338K
Cannell & Spears LLC 0.01% No change 65,663 $306K
California State Teachers Retirement System 0.00% Reduce -2.9% 64,740 $302K
Verition Fund Management LLC 0.00% Reduce -88.0% 64,369 $300K
American Century Companies Inc. 0.00% Add +27.5% 63,838 $297K
Algert Global LLC 0.01% Add +42.3% 61,912 $289K
Legal & General Group Plc 0.00% Reduce -0.3% 60,853 $284K
Citigroup Inc. 0.00% Add +84.7% 60,075 $280K
Los Angeles Capital Management LLC 0.00% Reduce -10.9% 56,286 $262K
Marshall Wace, LLP 0.00% Add +2.6% 54,000 $252K
Utah Retirement Systems 0.00% No change 51,430 $240K
Millennium Management 0.00% Reduce -67.3% 51,218 $239K
MetLife Investment Management, LLC 0.00% No change 50,369 $235K
HRT Financial LP 0.00% New 49,363 $230K
Simplex Trading, LLC 0.01% Add +97.8% 46,344 $215K
HSBC Holdings PLC 0.00% Reduce -2.4% 45,979 $214K
Man Group plc 0.00% Reduce -33.9% 44,649 $208K
EntryPoint Capital, LLC 0.12% Reduce -56.4% 43,751 $204K
Corebridge Financial, Inc. 0.00% Reduce -0.6% 43,151 $201K
Engineers Gate Manager LP 0.00% Add +51.3% 40,207 $187K
Invesco Ltd. 0.00% Add +3.0% 37,580 $175K
Federated Hermes, Inc. 0.00% Reduce -51.2% 33,436 $156K
Amundi 0.00% No change 31,790 $147K
SG Americas Securities, LLC 0.00% Reduce -52.1% 30,753 $143K
Jasper Ridge Partners, L.P. 0.00% No change 30,632 $143K
XTX Topco Ltd 0.01% Reduce -8.0% 28,590 $133K
Voya Investment Management LLC 0.00% Reduce -1.1% 27,541 $128K
Blackstone Inc. 0.00% No change 25,715 $120K
State Board of Administration of Florida Retirement System 0.00% No change 25,570 $119K
Wells Fargo & Company 0.00% Reduce -3.0% 25,313 $118K
Janus Henderson Group PLC 0.00% No change 23,340 $109K
Corton Capital Inc. 0.05% Reduce -70.9% 23,237 $108K
Shell Asset Management Co. 0.00% — 21,493 $100K
ProShare Advisors LLC 0.00% Add +34.3% 21,000 $98K
BNP Paribas Financial Markets 0.00% Reduce -70.2% 20,120 $94K
Erste Asset Management GmbH 0.00% No change 19,000 $93K
Arizona State Retirement System 0.00% Add +3.5% 19,428 $91K
Intech Investment Management LLC 0.00% New 19,286 $90K
Creative Planning 0.00% Add +54.2% 19,117 $89K
China Universal Asset Management Co., Ltd. 0.01% Add +65.3% 18,718 $87K
Virtus Advisers, LLC 0.04% Add +1.8% 18,697 $87K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 17,730 $83K
Teacher Retirement System of Texas 0.00% Add +14.9% 16,918 $79K
Profund Advisors LLC 0.00% Reduce -20.7% 15,450 $72K
Valence8 US LP 0.03% New 14,708 $69K
Truist Financial Corp. 0.00% Reduce -57.6% 14,425 $67K
NEOS Investment Management LLC 0.00% No change 14,344 $67K
Diversified Trust Co. 0.00% No change 14,102 $66K
US Bancorp \de 0.00% Reduce -40.0% 13,762 $64K
AJOVista, LLC 0.24% New 12,117 $56K
Cornercap Investment Counsel Inc. 0.02% Reduce -51.6% 11,767 $55K
nVerses Capital, LLC 0.02% New 11,000 $51K
Vontobel Holding Ltd. 0.00% No change 11,000 $51K
State of Wyoming 0.01% Add +231.8% 10,852 $51K
New York State Common Retirement Fund 0.00% Reduce -60.0% 10,310 $48K
Royal Bank of Canada 0.00% Add +19.5% 9,970 $46K
Point72 Asia (Singapore) Pte. Ltd. 0.01% New 8,676 $40K
Tower Research Capital LLC (TRC) 0.00% Reduce -53.4% 8,574 $40K
Ameritas Investment Partners, Inc. 0.00% Add +30.6% 8,175 $38K
Public Employees Retirement Association of Colorado 0.00% No change 7,914 $37K
CANADA LIFE ASSURANCE Co 0.00% No change 7,785 $36K
Point72 (DIFC) Ltd 0.00% New 6,148 $29K
Cwm, LLC 0.00% Add +785.7% 3,844 $18K
Mirae Asset Global Investments Co., Ltd. 0.00% Add +22.3% 3,520 $17K
Amalgamated Bank 0.00% No change 2,540 $12K
Group One Trading LLC 0.00% No change 2,000 $9K
Carolinas Wealth Consulting LLC 0.00% No change 1,500 $7K
GAMMA Investing LLC 0.00% Add +812.5% 438 $2K
Federation des caisses Desjardins du Quebec 0.00% Reduce -8.8% 415 $2K
Wilmington Savings Fund Society, FSB 0.00% New 400 $2K
Osaic Holdings, Inc. 0.00% Reduce -82.5% 320 $1K
Mark Sheptoff Financial Planning, LLC 0.00% No change 300 $1K
Nisa Investment Advisors, LLC 0.00% Add +87.3% 266 $1K
Earned Wealth Advisors, LLC 0.00% New 243 $1K
True Wealth Design, LLC 0.00% New 241 $1K
Quadrant Capital Group LLC 0.00% New 233 $1K
Lindbrook Capital, LLC 0.00% No change 217 $1K
Daiwa Securities Group Inc. 0.00% No change 277 $1K
National Bank of Canada 0.00% No change 200 $932
Signaturefd, LLC 0.00% Reduce -66.5% 140 $652
Motco 0.00% No change 125 $583
Rothschild Investment LLC 0.00% New 110 $513
Arax Advisory Partners 0.00% No change 84 $392
Sterling Capital Management LLC 0.00% — 83 $387
PNC Financial Services Group, Inc. 0.00% No change 56 $261
Northwestern Mutual Wealth Management Co. 0.00% New 50 $233
NewEdge Advisors, LLC 0.00% No change 32 $149
Comerica Bank 0.00% No change 21 $98
Parallel Advisors, LLC 0.00% No change 15 $70
Farther Finance Advisors, LLC 0.00% No change 2 $9
Covestor Ltd 0.00% Reduce -6.7% 14 $0

"% of holder's portfolio" is ALEC's weight in each manager's 13F, not the share of Alector Inc. the manager owns.