13F

Stock

Alector, Inc.

ALEC · held by 130 managers

Reported value

$125.6M

Holders

130

+2 new · −3 exited

Holders’ est. mark

−$1.25M

Price effect on 6 books still in the name

Largest holder

$15.6M

TCG Crossover Management, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
TCG Crossover Management, LLC10M$15.6M—Held
BlackRock, Inc.7.15M$11.2M—Held
Vanguard6.91M$10.8M—Held
Foresite Capital Management IV, LLC3.89M$6.06M—Held
Merck & Co., Inc.3.55M$5.53M—Held
683 Capital Management, LLC3.35M$5.23M—Held
Balyasny Asset Management L.P.3.27M$5.09M—Held
D. E. Shaw & Co., Inc.2.37M$3.69M—Held
Fidelity2.23M$3.48M—Held
JACOBS LEVY EQUITY MANAGEMENT, INC2.17M$3.39M—Held
Ikarian Capital, LLC2.08M$3.25M—Held
GEODE CAPITAL MANAGEMENT, LLC2.08M$3.24M—Held
Kynam Capital Management, LP2M$3.12M—Held
State Street1.81M$2.83M—Held
Renaissance Technologies1.54M$2.41M—Held
MEDICI CAPITAL LLC1.5M$2.34M—Held
MILLENNIUM MANAGEMENT LLC1.33M$2.08M—Held
Euclidean Capital LLC1.31M$2.04M—Held
MARSHALL WACE, LLP1.17M$1.82M—Held
Spruce Street Capital LP1.12M$1.74M—Held
ADAR1 Capital Management, LLC1.11M$1.73M—Held
DEERFIELD MANAGEMENT COMPANY, L.P.1.06M$1.65M—Held
TWO SIGMA INVESTMENTS, LP1.04M$1.62M—Held
DEUTSCHE BANK AG\1.04M$1.61M—Held
Eversept Partners, LP1.01M$1.57M—Held
JANE STREET GROUP, LLC993.9K$1.55M—Held
DAFNA Capital Management LLC908.4K$1.42M—Held
Elmind Capital, LP900K$1.4M—Held
PANAGORA ASSET MANAGEMENT INC850.3K$1.33M—Held
Vestal Point Capital, LP755K$1.18M—Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC665.5K$1.04M—Held
TWO SIGMA ADVISERS, LP651.8K$1.02M—Held
MACKENZIE FINANCIAL CORP660.2K$1M—Held
Icahn Capital599.6K$935.3K—Held
XTX Topco Ltd592.8K$924.8K—Held
NORTHERN TRUST CORP587.7K$916.7K—Held
BOOTHBAY FUND MANAGEMENT, LLC559.7K$873.2K—Held
GOLDMAN SACHS GROUP INC438K$683.2K—Held
BARCLAYS PLC398.7K$622K−$558.2KCut−$1.96M
AMERIPRISE FINANCIAL INC354.3K$552.7K—Held
MORGAN STANLEY319.1K$497.8K−$446.7KCut−$787.4K
SUSQUEHANNA INTERNATIONAL GROUP, LLP291.2K$454.2K—Held
Invesco Ltd.279.5K$436K—Held
Bank of New York Mellon Corp217.9K$339.9K—Held
NANO CAP NEW MILLENNIUM GROWTH FUND L P200K$312K—Held
DIMENSIONAL FUND ADVISORS LP199.1K$310.5K—Held
CANADA PENSION PLAN INVESTMENT BOARD172.3K$268.8K—Held
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO136K$212.2K—Held
BANK OF AMERICA CORP /DE/134.5K$209.8K−$188.3KCut−$519.2K
Utah Retirement Systems133.7K$208.6K—Held
Nuveen, LLC133.2K$207.9K—Held
UBS Group AG119.4K$186.3K—Held
BRIDGEWAY CAPITAL MANAGEMENT, LLC115K$179.4K—Held
STRS OHIO110.4K$172.2K—Held
Graham Capital Management, L.P.104.9K$163.6K—Held
RHUMBLINE ADVISERS101.9K$159K—Held
Jasper Ridge Partners, L.P.95.1K$148.3K—Held
Citadel93.5K$145.9K—Held
ALLIANCEBERNSTEIN L.P.92.9K$145K—Held
LOS ANGELES CAPITAL MANAGEMENT LLC93.1K$141.4K—Held
WELLS FARGO & COMPANY/MN90.1K$140.6K—Held
Man Group plc86.2K$134.4K—Held
SIMPLEX TRADING, LLC82K$127.9K—Held
Squarepoint Ops LLC77.6K$121.1K—Held
Russell Investments Group, Ltd.71.9K$112.1K—Held
Blackstone Inc.66.9K$104.3K—New
Quadrature Capital Ltd62.3K$97.1K—Held
Cannell & Spears LLC54.6K$85.2K—Held
Lexington Partners L.P.53.5K$83.4K—Held
Vanguard Personalized Indexing Management, LLC53.1K$82.8K—Held
HSBC HOLDINGS PLC48.5K$75.7K—Held
OXFORD ASSET MANAGEMENT LLP42.9K$66.9K—New
TUDOR INVESTMENT CORP ET AL41.3K$64.4K−$57.8KCut−$57.8K
Tower Research Capital LLC (TRC)39.5K$61.7K—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.37.3K$58.1K—Held
INTECH INVESTMENT MANAGEMENT LLC34.5K$53.8K—Held
JPMORGAN CHASE & CO32.6K$50.9K—Held
PRUDENTIAL FINANCIAL INC32.2K$50.3K—Held
Vontobel Holding Ltd.30K$46.8K—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE28.8K$45K—Held
Dynamic Technology Lab Private Ltd25.9K$40K—Held
Police & Firemen's Retirement System of New Jersey23.4K$36.5K—Held
Point72 Asset Management, L.P.23.1K$36K—Held
BNP PARIBAS FINANCIAL MARKETS22.4K$34.9K—Held
HERSHEY TRUST CO20.6K$32.1K—Held
Bronte Capital Management Pty Ltd.19.3K$30.1K—Held
SEI INVESTMENTS CO16.9K$26.3K—Held
ProShare Advisors LLC14.7K$22.9K—Held
NEUBERGER BERMAN GROUP LLC14.2K$22.1K—Held
DIVERSIFIED TRUST CO14.1K$22K—Held
VOYA INVESTMENT MANAGEMENT LLC13.9K$21.7K—Held
Cerity Partners LLC13.7K$21.3K—Held
R Squared Ltd12.5K$19.5K—Held
NEW YORK STATE COMMON RETIREMENT FUND10.3K$16.1K—Held
Corient Private Wealth LLC10.3K$16K—Held
HighTower Advisors, LLC10K$15.6K—Held
Texas Yale Capital Corp.10K$15.6K—Held
Ameritas Investment Partners, Inc.8.18K$12.8K—Held
CITIGROUP INC6.16K$9.6K—Held
Legal & General Group Plc6.04K$9.42K—Held
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM4.94K$7.71K—Held
ROYAL BANK OF CANADA4.68K$7K—Held
Sterling Capital Management LLC4.42K$6.9K—Held
ACADIAN ASSET MANAGEMENT LLC3.44M$5.36K—Held
GAMMA Investing LLC1.07K$1.68K—Held
NISA INVESTMENT ADVISORS, LLC1.02K$1.58K—Held
Physician Wealth Advisors, Inc.752$1.17K—Held
OSAIC HOLDINGS, INC.620$967—Held
True Wealth Design, LLC563$879—Held
Hughes Financial Services, LLC553$863—Held
EverSource Wealth Advisors, LLC504$786—Held
Essential Partners LLC431$672−$604Cut−$897
DekaBank Deutsche Girozentrale100K$661—Held
Federation des caisses Desjardins du Quebec415$647—Held
Wilmington Savings Fund Society, FSB400$624—Held
Rockefeller Capital Management L.P.367$573—Held
MARK SHEPTOFF FINANCIAL PLANNING, LLC300$468—Held
GSA CAPITAL PARTNERS LLP225.6K$352—Held
ROTHSCHILD INVESTMENT LLC209$326—Held
NATIONAL BANK OF CANADA /FI/200$312—Held
HRT FINANCIAL LP57.3K$89—Held
PRICE T ROWE ASSOCIATES INC /MD/56.2K$89—Held
Kingdom Financial Group LLC.48$75—Held
IFP Advisors, Inc47$73−$66Cut−$66
SG Americas Securities, LLC27K$42—Held
Virtu Financial LLC21.9K$34—Held
SBI Securities Co., Ltd.20$31—Held
CWM, LLC12.2K$19—Held
COMERICA BANK9$14—Held
AMALGAMATED BANK2.52K$4—Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.