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XLO XILIO THERAPEUTICS INC

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COM (common), issuer CIK 1840233

21 managers (23 13F filers) reported a position in XLO shares at 2026-03-31, 1,969,092 shares in all. 20 filers opened a position and 0 filers sold out during the quarter.

Managers
21
13F filers
23
New
20
Added
0
Reduced
0
Sold out
0
Shares held by filers
1,969,092

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Bain Capital Life Sciences Investors, L…in group Bain Capital Life Sciences In…664,021$5.58M0.5%new13F-HRTimelineGroup
Frazier Life Sciences Management, L.P.422,505$3.55M0.09%new13F-HRTimeline
Sio Capital Management, LLC152,464$1.28M0.18%new13F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding152,345$1.28MnewTimeline
Caligan Partners LP112,128$943K0.07%new13F-HRTimeline
Merck & Co., Inc.in group Merck & Co., Inc.105,982$891K0.26%new13F-HRTimelineGroup
Stonepine Capital Management, LLC64,162$540K0.47%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY57,493$484K<0.01%new13F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC49,566$417K<0.01%new13F-HRTimeline
AJU IB Investment Co., Ltd.47,695$401K1.31%new13F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC37,197$313K<0.01%new13F-HRTimelineGroup
FMR LLCin group FMR LLC36,558$307K<0.01%new13F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP16,946$143K0.01%new13F-HRTimeline
Velan Capital Investment Management LP14,285$120K0.08%new13F-HRTimeline
Ghisallo Capital Management LLC13,800$116K<0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP13,311$112K<0.01%new13F-HRTimelineGroup
CWM, LLCin group CWM, LLC4,206$35.4K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG4,038$34K<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO240$1.98K<0.01%new13F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA91$1K<0.01%new13F-HRTimelineGroup
Key Financial Inc59$496<0.01%new13F-HRTimeline