Alex Arrow

Currently holds a position at Protagenic Therapeutics Inc

Position	Company	Period
Acting Chief Financial Officer	Protagenic Therapeutics Inc	Feb. 12, 2016 -
Chief Medical Officer	BIOLASE Inc	Sept. 2, 2014 - Dec. 1, 2014
President, Chief Operating Officer	BIOLASE Inc	Feb. 28, 2014 - Sept. 2, 2014
President, Chief Operating Officer, Director	BIOLASE Inc	June 6, 2013 - Feb. 28, 2014
Independent Director	BIOLASE Inc	July 17, 2010 - June 6, 2013

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value
2023-10-13	2023-10-12	Protagenic Therapeutics Inc (PTIX)	B Purchase	40,714 +4.0% 395.64 US$1,307,666	40,714 +4.0%	395.64	US$1,307,666
2022-05-18	2022-05-18	Protagenic Therapeutics Inc (PTIX)	B Purchase	13,648 -45.8% 377.77 US$663,925	13,648 -45.8%	377.77	US$663,925
2022-05-18	2022-05-17	Protagenic Therapeutics Inc (PTIX)	B Purchase	42,821 +24.5% 462.85 US$3,016,917	42,821 +24.5%	462.85	US$3,016,917
2021-05-03	2021-04-30	Protagenic Therapeutics Inc (PTIX)	B Purchase	1,000 +0.8% 2.29 US$2,290	1,000 +0.8%	2.29	US$2,290
2021-05-03	2021-04-29	Protagenic Therapeutics Inc (PTIX)	B Purchase	1,000 +0.8% 2.29 US$2,290	1,000 +0.8%	2.29	US$2,290