Alphatec Holdings, Inc. (ATEC) Insider Trading
Over the last 3 months, ATEC insiders made 0 open-market buys and 2 sales, a net sale of -$127K (SEC Form 4). Over the last 6 months, 219 institutions increased and 166 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$127.3K
Insider trades by month Buys Sells
Jan
Feb
Mar
May
Jun
Aug
Context3-month price +24.8%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 7, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Sell | 8,168 | $9.65 |
| Jun 12, 2026 | MCGINNIS KAREN Kdirector | Grant | 32,012 | — |
| Jun 12, 2026 | MCGINNIS KAREN Kdirector | Sell | 6,050 | $8.01 |
| Jun 12, 2026 | Pelizzon David Rdirector | Grant | 32,012 | — |
| Jun 12, 2026 | Valentine Keithdirector | Grant | 32,012 | — |
| Jun 12, 2026 | Blackford Quentin S.director | Grant | 32,012 | — |
| Jun 12, 2026 | Demski David Mdirector | Grant | 32,012 | — |
| Jun 12, 2026 | Berkowitz Mortimer IIIdirector | Grant | 32,012 | — |
| May 11, 2026 | Valentine Keithdirector | Buy | 56,153 | $7.49 |
| May 11, 2026 | Valentine Keithdirector | Buy | 43,847 | $7.54 |
| May 11, 2026 | Valentine Keithdirector | Buy | 35,000 | $7.00 |
| Apr 9, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Tax | 23,393 | $11.03 |
| Apr 9, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Option | 15,000 | $1.98 |
| Apr 9, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Option | 60,000 | $2.69 |
| Apr 9, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Option | 12,500 | $3.34 |
| Mar 17, 2026 | Koning John Toddofficer: CHIEF FINANCIAL OFFICER | Sell | 79,789 | $12.36 |
| Mar 17, 2026 | Lish Scottofficer: CHIEF OPERATING OFFICER | Sell | 260,535 | $12.30 |
| Mar 13, 2026 | Sponsel Davidofficer: EVP, SALES | Sell | 163,452 | $12.52 |
| Mar 10, 2026 | Hunsaker Craig Eofficer: EVP, PEOPLE & CULTURE | Sell | 82,765 | $12.45 |
| Mar 10, 2026 | Hunsaker Craig Eofficer: EVP, PEOPLE & CULTURE | Sell | 33,602 | $12.22 |
| Mar 9, 2026 | Miles Patrickdirector, officer: CEO | Tax | 219,749 | $12.57 |
| Mar 9, 2026 | Koning John Toddofficer: CHIEF FINANCIAL OFFICER | Tax | 68,910 | $12.57 |
| Mar 9, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Sell | 88,835 | $12.49 |
| Feb 27, 2026 | Koning John Toddofficer: CHIEF FINANCIAL OFFICER | Grant | 205,094 | — |
| Feb 27, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Grant | 84,918 | — |
| Feb 27, 2026 | Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC. | Grant | 205,094 | — |
| Feb 27, 2026 | Koning John Toddofficer: CHIEF FINANCIAL OFFICER | Grant | 55,197 | — |
| Feb 27, 2026 | Lish Scottofficer: CHIEF OPERATING OFFICER | Grant | 311,110 | — |
| Feb 27, 2026 | Lish Scottofficer: CHIEF OPERATING OFFICER | Grant | 20,992 | — |
| Feb 27, 2026 | Koning John Toddofficer: CHIEF FINANCIAL OFFICER | Grant | 20,380 | — |
Source: ATEC SEC Form 4 filings, latest Aug 7, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ATEC positions over the last 6 months (SEC Form 13F).
Increased
219
New positions
95
Reduced
166
Sold out
55
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 11.3M | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 10.1M | May 13, 2026 |
| UBS Group AG | Increased | 7.2M | Aug 13, 2026 |
| UBS GROUP AG | Increased | 7.2M | May 5, 2026 |
| BRAIDWELL LP | Increased | 6.5M | Aug 14, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 6.5M | Aug 12, 2026 |
| AMERICAN CENTURY COMPANIES INC | Reduced | 6.4M | May 15, 2026 |
| ROYAL BANK OF CANADA | Reduced | 5.6M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 5.1M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.9M | May 15, 2026 |
| BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. | Increased | 3.6M | May 14, 2026 |
| BNP Paribas Asset Management Holding S.A. | Reduced | 3.5M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 3.5M | Aug 7, 2026 |
| ROYAL BANK OF CANADA | Reduced | 3.5M | Aug 14, 2026 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | New Position | 3.4M | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.