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Alx Oncology Holdings Inc. (ALXO)

Alx Oncology Holdings Inc. (ALXO) Insider Trading

Directors, officers and holders of more than 10% of ALXO report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 59 transactions on file: 4 with code P, 14 with code S and 32 with other codes.

DateInsiderCodeShares
Aug 17, 2026Lettmann JasonS Sale2,230
Aug 17, 2026Wong ShellyS Sale573
Jul 1, 2026Wong ShellyS Sale1,404
Apr 16, 2026Knight Jeff E.A Award800,000
Apr 16, 2026Klencke BarbaraA Award100,000
Mar 19, 2026Wong ShellyS Sale903
Mar 19, 2026Lettmann JasonS Sale12,311
Mar 3, 2026Klencke BarbaraA Award700,000
Feb 18, 2026Wong ShellyS Sale565
Feb 17, 2026Lettmann JasonF Tax Payment2,201
Feb 2, 2026GOODMAN COREY SP Purchase3,184,713
Jan 26, 2026Shantharam HarishA Award303,000
Jan 26, 2026Lettmann JasonA Award912,000
Jan 26, 2026Wong ShellyA Award192,000
Jan 20, 2026Garland J. ScottA Award40,400
Jan 20, 2026Sandler Alan B.A Award10,100
Jan 20, 2026Curran Daniel J.A Award16,833
Jan 20, 2026Takimoto Chris HA Award40,400
Jan 20, 2026Hemrajani RekhaA Award40,400
Jan 20, 2026GOODMAN COREY SA Award40,400
Jan 6, 2026Wong ShellyS Sale3,925
Oct 14, 2025Shantharam HarishA Award198,750
Oct 14, 2025Lettmann JasonA Award597,500
Oct 14, 2025Wong ShellyA Award140,000
Sep 17, 2025Klencke BarbaraA Award300,000
Sep 17, 2025Lettmann JasonP Purchase71,163
Sep 16, 2025Lettmann JasonP Purchase21,070
Aug 18, 2025Shantharam HarishP Purchase75,000
Aug 15, 2025Lettmann JasonS Sale2,382
Aug 15, 2025Wong ShellyS Sale611
Aug 12, 2025Curran Daniel J.A Award40,400
Jul 7, 2025Wong ShellyS Sale2,011
Jun 30, 2025Wong ShellyS Sale1,532
Apr 11, 2025Shantharam HarishA Award125,000
Apr 11, 2025Lettmann JasonA Award125,000
Apr 11, 2025Sandler Alan B.A Award125,000
Apr 11, 2025Wong ShellyA Award90,000
Mar 14, 2025Wong ShellyA Award3,000
Mar 14, 2025Lettmann JasonA Award42,000
Feb 19, 2025Wong ShellyS Sale550
Feb 19, 2025Lettmann JasonS Sale2,159
Feb 19, 2025Pons JaumeS Sale1,326
Jan 21, 2025Hemrajani RekhaA Award40,400
Jan 21, 2025Takimoto Chris HA Award40,400
Jan 21, 2025Klencke BarbaraA Award40,400
Jan 21, 2025Shantharam HarishA Award600,000
Jan 21, 2025Wong ShellyA Award112,000
Jan 21, 2025Sandler Alan B.A Award100,000
Jan 21, 2025Pons JaumeA Award50,000
Jan 21, 2025Lettmann JasonA Award478,000

The full Form 4 history is on the ALXO company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.