1. Corporate Officers - A
2. Arrow Alexander K.

Insider Trading History of Arrow Alexander K.

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Arrow Alexander K. since 2010. This trader's CIK number is 1497166. At the time of last reporting, Arrow Alexander K. was the Chief Financial Officer of Protagenic Therapeutics, Inc.\new. (stock ticker symbol PTIX). Also see all insider trading activities at Protagenic Therapeutics, Inc.\new.

Note that in the past Arrow Alexander K. also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Biolase, Inc (BIOL) by Arrow Alexander K.

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2014	BIOL	7,812	$14,999	0	$0	0	$0
2012	BIOL	51,800	$93,410	0	$0	0	$0
2011	BIOL	31,500	$107,138	0	$0	14,000	$16,100
2010	BIOL	3,000	$5,030	0	$0	0	$0

Yearly summary of insider trading at Protagenic Therapeutics, Inc.\new (PTIX) by Arrow Alexander K.

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2023	PTIX	8,000	$6,480	0	$0	0	$0
2022	PTIX	31,000	$22,090	0	$0	0	$0

Insider trading activities at 2 companies by Arrow Alexander K.:

1. Biolase, Inc (BIOL)

2. Protagenic Therapeutics, Inc.\new (PTIX)

Table 1. Insider trading of Biolase, Inc (BIOL) by Arrow Alexander K.

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2014-07-22	BIOL	Buy	7,812	1.92	14,999
2012-08-14	BLTI	Buy	10,000	1.70	17,000
2012-08-13	BLTI	Buy	37,000	1.76	65,082
2012-06-01	BLTI	Buy	4,800	2.36	11,328
2011-08-18	BLTI	Buy	5,000	2.84	14,200
2011-08-15	BLTI	Buy	11,200	3.09	34,608
2011-08-16	BLTI	Buy	5,000	2.97	14,850
2011-08-17	BLTI	Buy	2,800	2.85	7,980
2011-05-31	BLTI	Option Ex	10,000	1.15	11,500
2011-05-26	BLTI	Buy	500	4.99	2,495
2011-05-20	BLTI	Buy	1,500	4.96	7,440
2011-05-13	BLTI	Buy	1,000	4.19	4,190
2011-05-11	BLTI	Buy	4,500	4.75	21,375
2011-04-06	BLTI	Option Ex	4,000	1.15	4,600
2010-11-16	BLTI	Buy	1,000	1.64	1,640
2010-11-17	BLTI	Buy	1,000	1.51	1,510
2010-11-10	BLTI	Buy	1,000	1.88	1,880

Table 2. Insider trading of Protagenic Therapeutics, Inc.\new (PTIX) by Arrow Alexander K.

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2023-10-12	PTIX	Buy	8,000	.81	6,480
2022-05-17	PTIX	Buy	23,000	.71	16,330
2022-05-18	PTIX	Buy	8,000	.72	5,760

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 Arrow Alexander K. (Chief Financial Officer of Protagenic Therapeutics, Inc.\new at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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