ALX Oncology Holdings Inc. (ALXO)
Nasdaq: ALXO · Pharmaceutical Preparations · South San Francisco, CA · filing with the SEC since 2020
Who owns ALX Oncology Holdings Inc.
As filed with the SECHolders of 5% or more
5
Goodman Corey S holds 9.99% of Common Stock, par value $0.001 per share, as its SCHEDULE 13D/A filed Oct 16, 2026 says.
Directors and officers
11
report now, of 19 people on the record since 2020. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Goodman Corey S
SCHEDULE 13D/A · filed Oct 16, 2026 · Common Stock, par value $0.001 per share · 10% in Feb 4, 2026
RA Capital Management, L.P.
SCHEDULE 13G · filed Feb 9, 2026 · Common Stock, par value $0.001 per share
HBM Healthcare Investments (Cayman) Ltd.
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, par value $0.001 per share · 8.4% in May 15, 2025
Tang Capital Management, LLC
SCHEDULE 13G/A · filed Feb 14, 2025 · Common Stock, par value $0.001 per share
Blackrock, Inc.
SCHEDULE 13G · filed Jul 27, 2026 · Common Stock
Redmile Group, LLC
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 8.5% in Aug 14, 2025
Chen Yu
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 9.9% in Feb 6, 2026
Fmr LLC
SCHEDULE 13G/A · filed Dec 6, 2024 · COMMON STOCK · reported falling below 5%
Michael A Carusi
SCHEDULE 13D/A · filed May 27, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%
Millennium Management LLC
SCHEDULE 13G/A · filed Apr 28, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 6% in Oct 22, 2025
Tang Capital Management, LLC
SCHEDULE 13G/A · filed Nov 14, 2025 · Common Stock, par value $0.001 per share · reported falling below 5%, from 0% in Nov 14, 2025
What ALXO reports owning in othersstakes of 5% or more, and other ties
2 subsidiaries in 2 countries, from the list filed with the 10-K filed Mar 6, 2025.
Insider tradesForm 4
7sales
1purchases
0sales on a scheduled plan
2people selling
$0sold, in dollars
$5.0Mbought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window3 of 39 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Goodman Corey S | director | 0 | $0 | 0 | 1 | $5.0M |
| Lettmann Jason | CHIEF EXECUTIVE OFFICER | 2 | $0 | 0 | 0 | $0 |
| Pinto Shelly | SVP, FINANCE AND CAO | 5 | $0 | 0 | 0 | $0 |