1. Corporate Officers - K
2. Kirske David

Insider Trading History of Kirske David

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Kirske David since 2022. This trader's CIK number is 1276750. At the time of last reporting, Kirske David was the Chief Financial Officer of X4 Pharmaceuticals, Inc. (stock ticker symbol XFOR). Also see all insider trading activities at X4 Pharmaceuticals, Inc.

Note that in the past KIRSKE DAVID also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Cti Biopharma Corp (CTIC) by Kirske David

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2022	CTIC	0	$0	108,084	$649,236	108,084	$102,568
2022	CTIC	0	$0	374,674	$2,264,297	374,674	$427,623

Yearly summary of insider trading at X4 Pharmaceuticals, Inc (XFOR) by Kirske David

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2026	XFOR	0	$0	16,961	$72,813	0	$0

Insider trading activities at 2 companies by Kirske David:

1. Cti Biopharma Corp (CTIC)

2. X4 Pharmaceuticals, Inc (XFOR)

Table 1. Insider trading of Cti Biopharma Corp (CTIC) by Kirske David

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2022-12-30	CTIC	Sale	13,847	6.00	83,151
2022-12-29	CTIC	Sale	13,174	6.00	79,044
2023-01-03	CTIC	Sale	27,021	6.01	162,423
2022-12-30	CTIC	Option Ex	13,847	.95	13,140
2022-12-29	CTIC	Option Ex	13,174	.95	12,502
2023-01-03	CTIC	Option Ex	27,021	.95	25,642
2022-12-30	CTIC	Sale	13,847	6.00	83,151
2022-12-29	CTIC	Sale	13,174	6.00	79,044
2023-01-03	CTIC	Sale	27,021	6.01	162,423
2022-12-30	CTIC	Option Ex	13,847	.95	13,140
2022-12-29	CTIC	Option Ex	13,174	.95	12,502
2023-01-03	CTIC	Option Ex	27,021	.95	25,642
2022-10-03	CTIC	Option Ex	300	.95	284
2022-09-29	CTIC	Option Ex	900	.95	854
2022-09-30	CTIC	Option Ex	139,841	.95	132,709
2022-10-03	CTIC	Sale	300	6.25	1,875
2022-09-30	CTIC	Sale	139,841	6.05	845,618
2022-09-29	CTIC	Sale	900	6.00	5,404
2022-10-03	CTIC	Sale	300	6.25	1,875
2022-09-30	CTIC	Option Ex	139,841	.95	132,709
2022-09-29	CTIC	Option Ex	900	.95	854
2022-10-03	CTIC	Option Ex	300	.95	284
2022-09-30	CTIC	Sale	139,841	6.05	845,618
2022-09-29	CTIC	Sale	900	6.00	5,404
2022-09-16	CTIC	Sale	22,592	6.02	136,003
2022-09-16	CTIC	Option Ex	22,592	.95	21,439
2022-06-17	CTIC	Sale	60,000	6.12	367,500
2022-06-17	CTIC	Option Ex	60,000	2.15	129,000
2022-06-14	CTIC	Option Ex	10,000	.95	9,490
2022-06-14	CTIC	Sale	10,000	5.50	55,000

Table 2. Insider trading of X4 Pharmaceuticals, Inc (XFOR) by Kirske David

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2026-05-12	XFOR	Sale	16,961	4.29	72,813

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 Kirske David (Chief Financial Officer of X4 Pharmaceuticals, Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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