David M. Demski, Director of Alphatec Holdings ATEC, has filed 3 purchases and 1 sale on the open market. Over the past 12 months that comes to a net sale of $636K. The latest trade was on 06/10.

DD

DD

David M. Demski

Director

Company

Alphatec Holdings ATEC

First filing

23/06/28

Trades

15 trades

Buys / sales

3 / 1

12-month net buying

−$636K

Last trade

06/10

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Trading activity

6 months1 year2 years5 yearsAll

Transactions

Company	Trade type	Traded	Filed	Shares	Price	Value	Holding change
Alphatec HoldingsATEC	Open-market sale	25/12/11	25/12/12	30,000 sh	$21.20	$636,000	−7.0%
Alphatec HoldingsATEC	Open-market buy	24/08/21	24/08/21	50,000 sh	$5.67	$283,500	+21.0%
Alphatec HoldingsATEC	Open-market buy	24/08/02	24/08/05	40,000 sh	$6.56	$262,400	+20.2%
Alphatec HoldingsATEC	Open-market buy	23/11/09	23/11/13	30,000 sh	$10.50	$315,000	+19.8%