ATEC Insider Trading

Net Selling · 180d
Open-Market Buys (180d)
$996K
1 insiders
Open-Market Sells (180d)
$10.2M
6 insiders
Net Insider Flow
-$9.2M
open market, 180d
Reporting Insiders
7
12 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 11, 2026McGinnis Karen KDirectorSell(S)6K$8.01$48K
Jun 10, 2026Blackford Quentin S.DirectorGrant(A)32K$0
Jun 10, 2026Valentine KeithDirectorGrant(A)32K$0
Jun 10, 2026Pelizzon David RDirectorGrant(A)32K$0
Jun 10, 2026Demski David MDirectorGrant(A)32K$0
Jun 10, 2026Berkowitz Mortimer IIIDirectorGrant(A)32K$0
Jun 10, 2026McGinnis Karen KDirectorGrant(A)32K$0
May 11, 2026Valentine KeithDirectorBuy(P)35K$7.00$245K
May 8, 2026Valentine KeithDirectorBuy(P)44K$7.54$331K
May 7, 2026Valentine KeithDirectorBuy(P)56K$7.49$421K
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)15K$1.98$30K
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)15K$1.68$25K
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)13K$3.34$42K
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)60K$2.69$161K
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Tax withholding(F)23K$11.03$258K
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)15K$0
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)15K$0
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)13K$0
Apr 7, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Option exercise(M)60K$0
Mar 13, 2026Koning John ToddCHIEF FINANCIAL OFFICERSell(S)80K$12.36$986K
Mar 13, 2026Lish ScottCHIEF OPERATING OFFICERSell(S)261K$12.30$3.2M
Mar 11, 2026Sponsel DavidEVP, SALESSell(S)163K$12.52$2.0M
Mar 9, 2026Hunsaker Craig EEVP, PEOPLE & CULTURESell(S)83K$12.45$1.0M
Mar 9, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREGift(G)600$0
Mar 6, 2026Hunsaker Craig EEVP, PEOPLE & CULTURESell(S)34K$12.22$411K
Mar 5, 2026Miles PatrickCEO, DirectorTax withholding(F)220K$12.57$2.8M
Mar 5, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Sell(S)89K$12.49$1.1M
Mar 5, 2026Koning John ToddCHIEF FINANCIAL OFFICERTax withholding(F)69K$12.57$866K
Feb 25, 2026Miles PatrickCEO, DirectorGrant(A)306K$0
Feb 25, 2026Miles PatrickCEO, DirectorGrant(A)49K
Feb 25, 2026Miles PatrickCEO, DirectorGrant(A)612K$0
Feb 25, 2026Miles PatrickCEO, DirectorGrant(A)153K$0
Feb 25, 2026Miles PatrickCEO, DirectorGrant(A)153K$0
Feb 25, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREGrant(A)311K$0
Feb 25, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREGrant(A)127K$0
Feb 25, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREGrant(A)21K
Feb 25, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREGrant(A)64K$0
Feb 25, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREGrant(A)64K$0
Feb 25, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Grant(A)85K$0
Feb 25, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Grant(A)13K
Feb 25, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Grant(A)205K$0
Feb 25, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Grant(A)42K$0
Feb 25, 2026Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Grant(A)42K$0
Feb 25, 2026Sponsel DavidEVP, SALESGrant(A)205K$0
Feb 25, 2026Sponsel DavidEVP, SALESGrant(A)93K$0
Feb 25, 2026Sponsel DavidEVP, SALESGrant(A)20K
Feb 25, 2026Sponsel DavidEVP, SALESGrant(A)47K$0
Feb 25, 2026Sponsel DavidEVP, SALESGrant(A)47K$0
Feb 25, 2026Koning John ToddCHIEF FINANCIAL OFFICERGrant(A)20K
Feb 25, 2026Koning John ToddCHIEF FINANCIAL OFFICERGrant(A)110K$0
Feb 25, 2026Koning John ToddCHIEF FINANCIAL OFFICERGrant(A)205K$0
Feb 25, 2026Koning John ToddCHIEF FINANCIAL OFFICERGrant(A)55K$0
Feb 25, 2026Koning John ToddCHIEF FINANCIAL OFFICERGrant(A)55K$0
Feb 25, 2026Lish ScottCHIEF OPERATING OFFICERGrant(A)21K
Feb 25, 2026Lish ScottCHIEF OPERATING OFFICERGrant(A)127K$0
Feb 25, 2026Lish ScottCHIEF OPERATING OFFICERGrant(A)311K$0
Feb 25, 2026Lish ScottCHIEF OPERATING OFFICERGrant(A)64K$0
Feb 25, 2026Lish ScottCHIEF OPERATING OFFICERGrant(A)64K$0
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)120K$1.68$202K
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)32K$1.93$61K
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTURETax withholding(F)41K$13.10$538K
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)78K$2.69$210K
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)21K$3.09$65K
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)120K$0
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)21K$0
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)32K$0
Feb 12, 2026Hunsaker Craig EEVP, PEOPLE & CULTUREOption exercise(M)78K$0
Feb 5, 2026Sponsel DavidEVP, SALESSell(S)60K$13.79$833K
Feb 3, 2026Hunsaker Craig EEVP, PEOPLE & CULTURESell(S)37K$14.71$550K
Jan 5, 2026Miles PatrickCEO, DirectorSell(S)100K$21.01$2.1M
Dec 16, 2025Pelizzon David RDirectorSell(S)250K$19.66$4.9M
Dec 16, 2025Lish ScottCHIEF OPERATING OFFICERSell(S)20K$19.64$391K
Dec 11, 2025Demski David MDirectorSell(S)30K$21.20$636K
Dec 10, 2025Hunsaker Craig EEVP, PEOPLE & CULTURESell(S)33K$20.84$679K
Dec 10, 2025Sponsel DavidEVP, SALESSell(S)21K$20.79$439K
Dec 9, 2025Pritzker Jennifer N.10% OwnerSell(S)29K$21.03$606K
Dec 9, 2025Squadron Capital Holdings LLC10% OwnerSell(S)29K$21.03$606K
Dec 9, 2025Pelizzon David RDirector, 10% OwnerSell(S)29K$21.03$606K
Dec 9, 2025Squadron Capital LLC10% OwnerSell(S)29K$21.03$606K
Dec 8, 2025Pritzker Jennifer N.10% OwnerSell(S)221K$21.20$4.7M
Dec 8, 2025Squadron Capital Holdings LLC10% OwnerSell(S)221K$21.20$4.7M
Dec 8, 2025Miles PatrickCEO, DirectorTax withholding(F)29K$21.45$615K
Dec 8, 2025Pelizzon David RDirector, 10% OwnerSell(S)221K$21.20$4.7M
Dec 8, 2025Squadron Capital LLC10% OwnerSell(S)221K$21.20$4.7M
Dec 8, 2025Sponsel DavidEVP, SALESSell(S)988$21.45$21K
Dec 8, 2025Koning John ToddCHIEF FINANCIAL OFFICERTax withholding(F)15K$21.45$327K
Dec 5, 2025Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Sell(S)10K$21.48$213K
Dec 5, 2025Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Sell(S)13K$21.47$278K
Dec 5, 2025Lish ScottCHIEF OPERATING OFFICERSell(S)11K$21.47$233K
Dec 1, 2025Miles PatrickCEO, DirectorSell(S)100K$22.11$2.2M
Nov 24, 2025Squadron Capital Holdings LLC10% OwnerSell(S)250K$20.62$5.2M
Nov 24, 2025Pritzker Jennifer N.10% OwnerSell(S)250K$20.62$5.2M
Nov 24, 2025Pelizzon David RDirector, 10% OwnerSell(S)250K$20.62$5.2M
Nov 24, 2025Squadron Capital LLC10% OwnerSell(S)250K$20.62$5.2M
Nov 20, 2025Marshall Tyson EliotGENERAL COUNSEL & CORP. SEC.Sell(S)70K$19.51$1.4M
Nov 20, 2025Lish ScottCHIEF OPERATING OFFICEROption exercise(M)25K$3.63$91K
Nov 20, 2025Lish ScottCHIEF OPERATING OFFICERSell(S)25K$19.80$495K
Nov 20, 2025Lish ScottCHIEF OPERATING OFFICEROption exercise(M)25K$0
Nov 12, 2025Pritzker Jennifer N.10% OwnerSell(S)250K$20.80$5.2M
Nov 12, 2025Squadron Capital Holdings LLC10% OwnerSell(S)250K$20.80$5.2M

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).