1. Corporate Officers - F
2. Foster Jonathan P.

Insider Trading History of Foster Jonathan P.

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Foster Jonathan P. since 2015. This trader's CIK number is 1545414. At the time of last reporting, Foster Jonathan P. was the Chief Financial Officer of Moleculin Biotech, Inc.. (stock ticker symbol MBRX). Also see all insider trading activities at Moleculin Biotech, Inc..

Note that in the past Foster Jonathan P. also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Moleculin Biotech, Inc. (MBRX) by Foster Jonathan P.

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2025	MBRX	270,270	$99,999	0	$0	7,872	$0
2024	MBRX	0	$0	0	$0	7,875	$0
2023	MBRX	28,986	$20,000	0	$0	53,167	$0
2022	MBRX	0	$0	0	$0	12,500	$0
2017	MBRX	10,000	$8,650	0	$0	0	$0

Yearly summary of insider trading at Infusystem Holdings, Inc (INFU) by Foster Jonathan P.

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2015	INFU	5,582	$17,001	0	$0	0	$0

Insider trading activities at 2 companies by Foster Jonathan P.:

1. Moleculin Biotech, Inc. (MBRX)

2. Infusystem Holdings, Inc (INFU)

Table 1. Insider trading of Moleculin Biotech, Inc. (MBRX) by Foster Jonathan P.

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2025-06-23	MBRX	Buy	270,270	.37	99,999
2025-06-20	MBRX	Option Ex	2,711	.00	0
2025-06-22	MBRX	Option Ex	4,328	.00	0
2025-06-16	MBRX	Option Ex	833	.00	0
2024-06-22	MBRX	Option Ex	4,329	.00	0
2024-06-20	MBRX	Option Ex	2,712	.00	0
2024-06-16	MBRX	Option Ex	834	.00	0
2023-12-26	MBRX	Buy	28,986	.69	20,000
2023-06-20	MBRX	Option Ex	40,667	.00	0
2023-06-16	MBRX	Option Ex	12,500	.00	0
2022-06-16	MBRX	Option Ex	12,500	.00	0
2017-04-25	MBRX	Buy	10,000	.86	8,650

Table 2. Insider trading of Infusystem Holdings, Inc (INFU) by Foster Jonathan P.

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2015-08-18	INFU	Buy	1,000	2.92	2,920
2015-06-15	INFU	Buy	312	3.12	973
2015-05-15	INFU	Buy	4,270	3.07	13,108

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Foster Jonathan P. (Chief Financial Officer of Moleculin Biotech, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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