Latest filing published 17 Mar 2026 for Alphatec Holdings, Inc., €856k.
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
John Todd Koning, listed as finance chief, appears in our data through filings on Alphatec Holdings, Inc. shares, published by SEC (Form 4). Over a trading history stretching from 19 April 2021 to 13 March 2026, the count stands at 31 filings.
In open-market terms, that means 1 purchase worth €49k on one side and 8 sales worth €5.4M on the other. The net balance comes to €5.3M on the selling side. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Other entries cover 22 share grants. 2026 to date brings no purchases and 1 sale.
Most recently, on 17 March 2026, the filings show an open-market sale worth €856k in Alphatec Holdings, Inc. The clock since the last published purchase (20 December 2021) now reads 1,768 days. Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
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