Alphatec Holdings, Inc. (ATEC) Insider Trading

Over the last 3 months, ATEC insiders made 3 open-market buys and 6 sales, a net sale of -$7.8M (SEC Form 4). Over the last 6 months, 226 institutions increased and 182 reduced their position (13F).

Insider Activity

Sentiment
10/100
Buys (3m)
3
Sells (3m)
6
Net (3m)
-$7.8M
Insiders buying
Insider trades by month Buys Sells
Nov
Dec
Jan
Feb
Mar
May
Context3-month price -37%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
May 11, 2026Valentine KeithdirectorBuy56,153$7.49
May 11, 2026Valentine KeithdirectorBuy35,000$7.00
May 11, 2026Valentine KeithdirectorBuy43,847$7.54
Apr 9, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Option12,500$3.34
Apr 9, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Option60,000$2.69
Apr 9, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Option15,000$1.98
Apr 9, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Tax23,393$11.03
Mar 17, 2026Lish Scottofficer: CHIEF OPERATING OFFICERSell260,535$12.30
Mar 17, 2026Koning John Toddofficer: CHIEF FINANCIAL OFFICERSell79,789$12.36
Mar 13, 2026Sponsel Davidofficer: EVP, SALESSell163,452$12.52
Mar 10, 2026Hunsaker Craig Eofficer: EVP, PEOPLE & CULTURESell82,765$12.45
Mar 10, 2026Hunsaker Craig Eofficer: EVP, PEOPLE & CULTURESell33,602$12.22
Mar 9, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Sell88,835$12.49
Mar 9, 2026Koning John Toddofficer: CHIEF FINANCIAL OFFICERTax68,910$12.57
Mar 9, 2026Miles Patrickdirector, officer: CEOTax219,749$12.57
Feb 27, 2026Sponsel Davidofficer: EVP, SALESGrant205,094
Feb 27, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Grant205,094
Feb 27, 2026Hunsaker Craig Eofficer: EVP, PEOPLE & CULTUREGrant63,689
Feb 27, 2026Hunsaker Craig Eofficer: EVP, PEOPLE & CULTUREGrant311,110
Feb 27, 2026Miles Patrickdirector, officer: CEOGrant48,913
Feb 27, 2026Marshall Tyson Eliotofficer: GENERAL COUNSEL & CORP. SEC.Grant12,840
Feb 27, 2026Koning John Toddofficer: CHIEF FINANCIAL OFFICERGrant20,380
Feb 27, 2026Lish Scottofficer: CHIEF OPERATING OFFICERGrant127,378
Feb 27, 2026Hunsaker Craig Eofficer: EVP, PEOPLE & CULTUREGrant20,992
Feb 27, 2026Sponsel Davidofficer: EVP, SALESGrant93,410
Feb 27, 2026Miles Patrickdirector, officer: CEOGrant611,673
Feb 27, 2026Lish Scottofficer: CHIEF OPERATING OFFICERGrant311,110
Feb 27, 2026Lish Scottofficer: CHIEF OPERATING OFFICERGrant20,992
Feb 27, 2026Koning John Toddofficer: CHIEF FINANCIAL OFFICERGrant110,394
Feb 27, 2026Lish Scottofficer: CHIEF OPERATING OFFICERGrant63,689

Source: ATEC SEC Form 4 filings, latest May 11, 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
226
New positions
85
Reduced
182
Sold out
77
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Reduced10.2MFeb 12, 2026
BLACKROCK, INC.Reduced10.1MMay 13, 2026
VANGUARD GROUP INCIncreased6.9MJan 29, 2026
AMERICAN CENTURY COMPANIES INCIncreased6.5MFeb 13, 2026
AMERICAN CENTURY COMPANIES INCReduced6.4MMay 15, 2026
UBS GROUP AGUnchanged5.2MJan 29, 2026
UBS GROUP AGUnchanged5.2MMay 5, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position4.9MMay 15, 2026
ROYAL BANK OF CANADAReduced4.9MFeb 17, 2026
ROYAL BANK OF CANADAReduced4.5MMay 15, 2026
MORGAN STANLEYIncreased4.3MFeb 13, 2026
BNP PARIBAS ASSET MANAGEMENT HOLDING S.A.Increased3.6MMay 14, 2026
DEUTSCHE BANK AG\Increased3.3MFeb 11, 2026
BNP PARIBAS ASSET MANAGEMENT HOLDING S.A.Reduced3.2MFeb 13, 2026
STATE STREET CORPIncreased3.0MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.