SEPTInvestingStart Free

ALXO SCHEDULE 13G/A: SEC filing

An institutional holder

Filed with the SEC on · accession 0001193125-26-352359

ALXO filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 14, 2026. An institutional holder filed an amended Schedule 13G for ALX Oncology Holdings Inc, indicating a change in their passive ownership position. The stock moved +1.0% by the first close after the filing.

Summary of the filing

An institutional holder filed an amended Schedule 13G for ALX Oncology Holdings Inc, indicating a change in their passive ownership position. The filing text does not disclose specific ownership percentages or share counts.

For details, click here →

Key details

IssuerALX Oncology Holdings Inc

How ALXO stock reacted

Close before

$1.94

Aug 13, 2026

First close after

+1.03%

$1.96

5 trading days

+2.58%

$1.99

Since filing

-40.46%

$1.16

✦ Ask GOAX AI about this filing — what it means for ALXO, what changed since its last filings and what to watch next.

Try it free for 7 days

🔔 Want to stay updated on new SEC filings for ALXO?

Click here

Frequently asked questions

What did ALXO file with the SEC on Aug 14, 2026?

ALXO filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G for ALX Oncology Holdings Inc, indicating a change in their passive ownership position. The filing text does not disclose specific ownership percentages or share counts.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did ALXO stock react to this filing?

ALXO closed at $1.94 before the filing and $1.96 on Aug 14, 2026 (+1.03%). Five trading days later: $1.99 (+2.58%).

Other ALXO SEC filings

Get alerts when ALXO files with the SEC, plus live charts, key levels and news for 13,000+ stocks.

Try SEPT free for 7 days
ALXO overviewALXO analysisALXO newsLatest SEC filings