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Xilio Therapeutics, Inc.

XLO
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001840233

No open-market purchases or sales by Xilio Therapeutics, Inc. insiders were filed in the last 90 days; 27 institutions reported holding it in 13F filings for Q2 2026, worth $32.6M in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Xilio Therapeutics, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of XLO: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders37124−12
SharesConverted for a 1-for-14 split2.84M89.7K2.62M−128.5K (−4.7%)
Value$25.4M$803.6K$22.0M−$2.60M (−10.6%)

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (7)

Institutions that held Xilio Therapeutics, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to XLO in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC123,660$1.04M0.00%
Caligan Partners LP112,128$943.0K0.07%
Vanguard Fiduciary Trust Co28,475$239.5K0.00%
CWM, LLC4,206$35.4K0.00%
JPMorgan Chase & Co240$1.98K0.00%
Vanguard Global Advisers, LLC210$1.77K0.00%
Royal Bank of Canada91$1.00K0.00%

Sold out (19)

Institutions that held Xilio Therapeutics, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of XLO in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Point72 Asset Management, L.P.4,000,000$2.56M
StemPoint Capital LP2,030,028$1.30M
Empery Asset Management, LP1,183,040$757.4K
Citadel Advisors LLC436,216$279.3K
Northern Trust Corp66,609$42.6K
Two Sigma Investments, LP62,032$39.7K
Bridgeway Capital Management, LLC56,081$35.9K
Jane Street Group, LLC42,080$26.9K
HRT Financial LP31,886$20.0K
Mariner, LLC25,000$16.0K
LPL Financial LLC21,000$13.4K
Raymond James Financial Inc18,761$12.0K
XTX Topco Ltd17,304$11.1K
Dunhill Financial, LLC10,274$6.58K
Investors Asset Management of Georgia Inc10,000$6.40K
Pinnacle Financial Group, LLC10,000$6.40K
BlackRock, Inc.2,037$1.30K
Private Wealth Management Group, LLC310$199
Bank of America Corp261$167

Not filed for Q1 2026 yet (1)

Institutions that held Xilio Therapeutics, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding XLO in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc1,255,692$803.6K