13F

Stock

Xilio Therapeutics, Inc.

XLO · held by 24 managers

Reported value

$21.9M

Holders

24

+20 new · −35 exited

Holders’ est. mark

$18.1M

Price effect on 17 books still in the name

Largest holder

$5.58M

Bain Capital Life Sciences Investors, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Bain Capital Life Sciences Investors, LLC664K$5.58M$5.16MAdded$864.4K
GILEAD SCIENCES, INC.650.4K$5.47M$5.05MCut−$359.5K
Frazier Life Sciences Management, L.P.422.5K$3.55M$3.28MCut−$233.6K
Sio Capital Management, LLC152.5K$1.28M$1.18MCut−$84.3K
VANGUARD CAPITAL MANAGEMENT LLC123.7K$1.04MHeld
Caligan Partners LP112.1K$943KNew
Merck & Co., Inc.106K$891.3K$823.5KCut−$58.6K
Stonepine Capital Management, LLC64.2K$539.6K$498.5KAdded$458.8K
MORGAN STANLEY57.5K$483.5K$446.7KCut−$54.2K
Renaissance Technologies49.6K$416.9K$385.1KAdded$196.4K
AJU IB Investment Co., Ltd.47.7K$401.1K$370.6KCut−$26.4K
GEODE CAPITAL MANAGEMENT, LLC37.2K$312.8K$289KAdded$102.2K
Fidelity36.6K$307.5K$284KCut−$20.2K
VANGUARD FIDUCIARY TRUST CO28.5K$239.5KHeld
Velan Capital Investment Management LP14.3K$120.1K$111KAdded$11.3K
Ghisallo Capital Management LLC13.8K$116.1K$107.2KCut−$596.6K
State Street13.3K$111.9K$103.4KCut−$7.38K
CWM, LLC4.21K$35.4KNew
UBS Group AG4.04K$34K$1.58KAdded$33.8K
JPMORGAN CHASE & CO240$1.98KNew
Vanguard Global Advisers, LLC210$1.77KHeld
ROYAL BANK OF CANADA91$1KNew
Key Financial Inc59$496$458Cut−$35
GSA CAPITAL PARTNERS LLP16.9K$143$132Added$48

Who left

Positions as of Q1 2026. 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.