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Alx Oncology Holdings Inc

ALXO
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001810182

In the last 90 days, Alx Oncology Holdings Inc insiders filed 0 open-market purchases and 3 sales; 93 institutions reported holding it in 13F filings for Q2 2026, worth $217.9M in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Alx Oncology Holdings Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
69
+13 vs. Q4 2025
Shares held
94.3M
+66.7M (+241.9%) vs. Q4 2025
Total value
$189.0M
+$157.9M (+507.4%) vs. Q4 2025
New holders
25
18 more added
Sold out
12
11 more reduced

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ALXO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 69 institutions
Q1 2021: 94 institutionsQ2 2021: 105 institutionsQ3 2021: 115 institutionsQ4 2021: 108 institutionsQ1 2022: 96 institutionsQ2 2022: 97 institutionsQ3 2022: 99 institutionsQ4 2022: 87 institutionsQ1 2023: 86 institutionsQ2 2023: 75 institutionsQ3 2023: 76 institutionsQ4 2023: 93 institutionsQ1 2024: 106 institutionsQ2 2024: 112 institutionsQ3 2024: 92 institutionsQ4 2024: 87 institutionsQ1 2025: 85 institutionsQ2 2025: 61 institutionsQ3 2025: 61 institutionsQ4 2025: 57 institutionsQ1 2026: 69 institutionsQ2 2026: 93 institutions
Value heldQ1 2026: $189.0M
Q1 2021: $2.47BQ2 2021: $1.82BQ3 2021: $2.55BQ4 2021: $780.0MQ1 2022: $621.9MQ2 2022: $290.7MQ3 2022: $348.7MQ4 2022: $410.6MQ1 2023: $161.4MQ2 2023: $257.5MQ3 2023: $159.8MQ4 2023: $681.5MQ1 2024: $510.5MQ2 2024: $293.4MQ3 2024: $82.7MQ4 2024: $68.5MQ1 2025: $21.7MQ2 2025: $12.1MQ3 2025: $50.8MQ4 2025: $33.0MQ1 2026: $189.0MQ2 2026: $217.9M
Institutions holding ALXO and their total value by quarter
QuarterHoldersValue
Q2 202693$217.9M
Q1 202669$189.0M
Q4 202557$33.0M
Q3 202561$50.8M
Q2 202561$12.1M
Q1 202585$21.7M
Q4 202487$68.5M
Q3 202492$82.7M
Q2 2024112$293.4M
Q1 2024106$510.5M
Q4 202393$681.5M
Q3 202376$159.8M
Q2 202375$257.5M
Q1 202386$161.4M
Q4 202287$410.6M
Q3 202299$348.7M
Q2 202297$290.7M
Q1 202296$621.9M
Q4 2021108$780.0M
Q3 2021115$2.55B
Q2 2021105$1.82B
Q1 202194$2.47B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Alx Oncology Holdings Inc; share changes are against Q4 2025.

Institutions holding ALXO in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Ra Capital Management, L.P.13,011,849$26.1M0.28%+13,011,849New
TCG Crossover Management, LLC13,011,849$26.1M0.75%+13,011,849New
venBio Partners LLC12,884,638$25.8M9.21%+3,184,713+32.8%Added
Redmile Group, LLC7,964,188$16.0M1.06%+4,699,470+143.9%Added
Blackstone Group Inc.5,826,544$11.7M0.05%+5,826,544New
Driehaus Capital Management LLC5,734,620$11.5M0.08%+4,311,738+303.0%Added
Vanguard Capital Management LLC4,179,736$8.38M0.00%+4,179,736New
Marshall Wace, LLP3,757,216$7.51M0.01%+3,730,840+14,144.8%Added
Vivo Capital, LLC3,184,713$6.39M0.53%+3,184,713New
Almitas Capital LLC3,173,834$6.36M1.44%+636,943+25.1%Added
5AM Venture Management, LLC3,057,325$6.13M1.70%+3,057,325New
OrbiMed Advisors LLC2,866,256$5.75M0.13%+2,866,256New
Adage Capital Partners GP, L.L.C.2,000,000$4.01M0.01%+2,000,000New
Millennium Management LLC1,988,559$3.99M0.00%−1,216,060−37.9%Reduced
Two Sigma Investments, LP1,587,833$3.18M0.00%+947,628+148.0%Added
Squadron Capital Management LLC1,460,000$2.93M1.17%+1,460,000New
Susquehanna International Group, LLP1,328,907$2.66M0.00%+1,177,880+779.9%Added
Acadian Asset Management LLC1,101,025$2.20M0.00%−273,248−19.9%Reduced
Ensign Peak Advisors, Inc950,550$1.91M0.00%+950,550New
UBS Group AG914,754$1.83M0.00%+48,763+5.6%Added
Renaissance Technologies LLC732,599$1.47M0.00%+309,500+73.2%Added
Bank of America Corp577,783$1.16M0.00%+45,938+8.6%Added
Geode Capital Management, LLC493,437$989.8K0.00%+139,741+39.5%Added
BlackRock, Inc.447,799$897.8K0.00%−2,631−0.6%Reduced
Vanguard Fiduciary Trust Co294,478$590.4K0.00%+294,478New
State Street Corp175,828$352.5K0.00%+51,600+41.5%Added
Goldman Sachs Group Inc138,593$277.9K0.00%+121,331+702.9%Added
Northern Trust Corp136,964$274.6K0.00%−12,133−8.1%Reduced
Qube Research & Technologies Ltd107,647$215.8K0.00%+107,647New
Bank of Nova Scotia105,858$212.2K0.00%00.0%Unchanged
Morgan Stanley98,835$198.2K0.00%+15,078+18.0%Added
Vanguard Portfolio Management LLC97,881$196.3K0.00%+97,881New
Jane Street Group, LLC95,101$190.7K0.00%−90,860−48.9%Reduced
Ieq Capital, LLC92,233$184.9K0.00%00.0%Unchanged
Brevan Howard Capital Management LP79,389$159.2K0.00%+79,389New
Bridgeway Capital Management, LLC76,072$152.5K0.00%00.0%Unchanged
Omers Administration Corp75,000$150.4K0.00%+75,000New
Gsa Capital Partners LLP68,987$138.0K0.01%−23,667−25.5%Reduced
XTX Topco Ltd44,141$88.5K0.00%+44,141New
Point72 Asset Management, L.P.41,095$82.4K0.00%+20,878+103.3%Added
Graham Capital Management, L.P.37,739$75.7K0.00%+37,739New
Wealth Enhancement Advisory Services, LLC37,997$74.9K0.00%+50.0%Added
HC Advisors, LLC22,900$45.9K0.03%−1,000−4.2%Reduced
Callan Family Office, LLC22,419$45.0K0.00%−5,889−20.8%Reduced
Caxton Corp20,946$42.0K1.04%+20,946New
Nine Masts Capital Ltd20,623$41.3K0.01%+5,148+33.3%Added
JSF Financial, LLC17,500$35.1K0.01%00.0%Unchanged
Moneta Group Investment Advisors LLC15,196$30.5K0.00%00.0%Unchanged
Lido Advisors, LLC13,220$26.5K0.00%00.0%Unchanged
FMR LLC12,986$26.0K0.00%00.0%Unchanged
Abel Hall, LLC12,598$25.3K0.01%00.0%Unchanged
Beacon Pointe Advisors, LLC12,500$25.1K0.00%+12,500New
Two Sigma Securities, LLC10,993$22.0K0.00%+10,993New
Invesco Ltd.10,980$22.0K0.00%+10,980New
Barclays PLC10,515$21.1K0.00%00.0%Unchanged
HSBC Holdings PLC10,105$20.5K0.00%00.0%Unchanged
Vanguard Global Advisers, LLC9,968$20.0K0.00%+9,968New
Royal Bank of Canada1,879$4.00K0.00%+916+95.1%Added
Nisa Investment Advisors, LLC1,106$2.22K0.00%00.0%Unchanged
Bradley & Co. Private Wealth Management, LLC1,000$2.00K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC905$1.81K0.00%+905New
BNP Paribas Arbitrage, SA466$9340.00%−14−2.9%Reduced
The PNC Financial Services Group, Inc.100$2010.00%00.0%Unchanged
JPMorgan Chase & Co99$1890.00%00.0%Unchanged
CWM, LLC65$1300.00%−31−32.3%Reduced
Optiver Holding B.V.27$540.00%00.0%Unchanged
Citigroup Inc17$340.00%+17New
SBI Securities Co., Ltd.14$280.00%−398−96.6%Reduced
Caitong International Asset Management Co., Ltd6$120.00%+6New
Two Sigma Advisers, LP0$00.00%−710,400−100.0%Sold out
Bank of Montreal0$00.00%−474,781−100.0%Sold out
Seven Fleet Capital Management LP0$00.00%−117,817−100.0%Sold out
Citadel Advisors LLC0$00.00%−56,732−100.0%Sold out
Nan Fung Trinity (HK) Ltd0$00.00%−41,950−100.0%Sold out
Commonwealth Equity Services, LLC0$00.00%−15,102−100.0%Sold out
Virtu Financial LLC0$00.00%−13,702−100.0%Sold out
Simplex Trading, LLC0$00.00%−3,553−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−3,142−100.0%Sold out
Torren Management, LLC0$00.00%−1,632−100.0%Sold out
Group One Trading, L.P.0$00.00%−518−100.0%Sold out
DekaBank Deutsche Girozentrale0$00.00%−41,000−100.0%Sold out
Vanguard Group Inc––––Not filed