Gelder Mark S. MD - Insider Non-Derivative Transactions at Onconova Therapeutics, Inc. (ONTX) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Feb 7, 2023, Gelder Mark S. MD's relationship to Onconova Therapeutics, Inc. (ONTX) is Officer (CHIEF MEDICAL OFFICER), and currently has 11,729 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other ONTX insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Gelder Mark S. MD - Insider Non-Derivative Transactions of ONTX Common Stock

Gelder Mark S. MD - Insider Non-Derivative Transactions at ONTX

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Feb 8, 2023	F -- (Common Stock)	1242	1.36	10487
Feb 8, 2023	M -- (Common Stock)	5833	0	11729