John Todd Koning

ATEC

John Todd Koning serves as officer: CHIEF FINANCIAL OFFICER at Alphatec Holdings, Inc. (ATEC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$55.9K

Total Sells

13 trades

$7.00M

Net Position

Net Seller

$6.94M

Companies Traded

ATEC

Active Period

Dec 2021 – Mar 2026

14 total trades

Most Recent

Sell ATEC

Mar 17, 2026 · $986.2K

John Todd Koning's Insider Trading at Alphatec Holdings, Inc. (ATEC)

Buys

1 · $55.9K

Sells

13 · $7.00M

Total Shares Bought

5,000

Total Shares Sold

565,287

ATEC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 17, 2026	Sell	79,789	$12.36	$986.2K	600,721
Dec 8, 2025	Sell	15,266	$21.45	$327.5K	0
Aug 6, 2025	Sell	5,315	$15.34	$81.5K	0
Apr 22, 2025	Sell	37,500	$10.71	$401.6K	0
Mar 10, 2025	Sell	165,121	$9.72	$1.60M	0
Apr 24, 2024	Sell	37,500	$12.82	$480.8K	0
Mar 1, 2024	Sell	121,601	$13.30	$1.62M	0
Feb 1, 2024	Sell	24,453	$16.68	$407.9K	0
Apr 20, 2023	Sell	16,500	$16.42	$270.9K	0
Feb 27, 2023	Sell	22,500	$14.76	$332.1K	0
Feb 22, 2023	Sell	13,068	$14.20	$185.6K	0
Apr 28, 2022	Sell	16,092	$11.54	$185.7K	0
Mar 18, 2022	Sell	10,582	$10.94	$115.8K	0
Dec 16, 2021	Buy	5,000	$11.17	$55.9K	0