John Todd Koning Alphatec Holdings, Inc. (ATEC) insider trading activity

John Todd Koning is CHIEF FINANCIAL OFFICER of Alphatec Holdings, Inc.. Currently has a direct ownership of 461,221 shares of ATEC, which is worth approximately $7.29 Million. The most recent transaction as insider was on Aug 06, 2025, when has been sold 5,315 shares (Common Stock) at a price of $15.34 per share, resulting in proceeds of $81,532. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 461K

1.14% 3M change

17.25% 12M change

Total Value Held $7.29 Million

John Todd Koning Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 06 2025	SELL Payment of exercise price or tax liability	$81,532 $15.34 p/Share	5,315 Reduced 1.14%	461,221 Common Stock
Apr 22 2025	SELL Open market or private sale	$401,625 $10.71 p/Share	37,500 Reduced 7.44%	466,536 Common Stock
Apr 01 2025	BUY Grant, award, or other acquisition	-	20,929 Added 3.99%	504,036 Common Stock
Mar 10 2025	SELL Open market or private sale	$1,604,976 $9.72 p/Share	165,121 Reduced 25.47%	483,107 Common Stock
Jan 29 2025	BUY Grant, award, or other acquisition	-	254,872 Added 28.22%	648,228 Common Stock
Apr 24 2024	SELL Open market or private sale	$480,750 $12.82 p/Share	37,500 Reduced 8.7%	393,356 Common Stock
Mar 01 2024	SELL Open market or private sale	$1,617,293 $13.3 p/Share	121,601 Reduced 22.01%	430,856 Common Stock
Feb 21 2024	BUY Grant, award, or other acquisition	-	31,746 Added 5.43%	552,457 Common Stock
Feb 01 2024	SELL Payment of exercise price or tax liability	$407,876 $16.68 p/Share	24,453 Reduced 4.49%	520,711 Common Stock
Feb 01 2024	BUY Grant, award, or other acquisition	-	129,612 Added 19.21%	545,164 Common Stock
Apr 20 2023	SELL Open market or private sale	$270,930 $16.42 p/Share	16,500 Reduced 3.82%	415,552 Common Stock
Feb 27 2023	SELL Open market or private sale	$332,100 $14.76 p/Share	22,500 Reduced 4.95%	432,052 Common Stock
Feb 22 2023	SELL Open market or private sale	$185,565 $14.2 p/Share	13,068 Reduced 2.7%	470,644 Common Stock
Feb 01 2023	BUY Grant, award, or other acquisition	-	187,451 Added 27.93%	483,712 Common Stock
Apr 28 2022	SELL Payment of exercise price or tax liability	$185,702 $11.54 p/Share	16,092 Reduced 5.43%	280,169 Common Stock
Mar 18 2022	SELL Payment of exercise price or tax liability	$115,767 $10.94 p/Share	10,582 Reduced 3.45%	296,261 Common Stock
Feb 24 2022	BUY Grant, award, or other acquisition	-	110,161 Added 26.42%	306,843 Common Stock
Dec 16 2021	BUY Open market or private purchase	$55,850 $11.17 p/Share	5,000 Added 2.48%	196,682 Common Stock
Apr 19 2021	BUY Grant, award, or other acquisition	-	190,000 Added 50.0%	190,000 Common Stock

Also insider at

MASI

MASIMO CORP Healthcare

SVP, Chief Accounting Officer

JTK

John Todd Koning

CHIEF FINANCIAL OFFICER

Irvine, CA

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