Koning John Todd – Insider Transactions

Ticker	Owner	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Mar 13 '26	Sale	12.36	79,789	986,192	600,721	Mar 17 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Apr 22 '25	Sale	10.71	37,500	401,625	466,536	Apr 23 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Mar 10 '25	Sale	9.72	165,121	1,604,976	483,107	Mar 12 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Apr 24 '24	Sale	12.82	37,500	480,750	393,356	Apr 26 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Mar 01 '24	Sale	13.30	121,601	1,617,293	430,856	Mar 04 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Apr 20 '23	Sale	16.42	16,500	270,930	415,552	Apr 24 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Feb 27 '23	Sale	14.76	22,500	332,100	432,052	Mar 01 12:00 AM
ATEC	Koning John Todd	CHIEF FINANCIAL OFFICER	Feb 22 '23	Sale	14.20	13,068	185,566	470,644	Feb 23 12:00 AM
ATEC	Koning John Todd	Chief Financial Officer	Dec 16 '21	Buy	11.17	5,000	55,850	196,682	Dec 20 12:00 AM

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