Arkolith/Insider Trading/NSC

NSC Insider Trading

NSC · full profile →Last filing May 20, 2026
Mixed · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$0
Reporting Insiders
0
0 P/S transactions

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
May 20, 2026Huffard John C JrDirectoracquired(A)12.735$311.84$4K
May 20, 2026Huffard John C JrDirectoracquired(A)22.481$315.38$7K
May 20, 2026Ryerkerk LoriDirectoracquired(A)3.071$315.38$969
May 20, 2026LAMPHERE GILBERT HDirectoracquired(A)2.674$315.38$843
May 20, 2026Jones Christopher TDirectoracquired(A)22.481$315.38$7K
May 20, 2026Heitkamp Mary KathrynDirectoracquired(A)7.785$315.38$2K
May 20, 2026Fahmy SamehDirectoracquired(A)7.785$315.38$2K
May 20, 2026Donadio Marcela EDirectoracquired(A)37.241$315.38$12K
May 20, 2026DeBiase Francesca A.Directoracquired(A)9.154$315.38$3K
May 20, 2026Davidson Phillip SDirectoracquired(A)10.744$315.38$3K
May 20, 2026Clyburn William Jr.Directoracquired(A)7.785$315.38$2K
May 20, 2026ANDERSON RICHARD HDirectoracquired(A)6.522$311.84$2K
May 20, 2026ANDERSON RICHARD HDirectoracquired(A)10.141$315.38$3K
Apr 26, 2026Orr John FEVP & Chief Operating Officeracquired(M)8.3K—$0
Apr 26, 2026Orr John FEVP & Chief Operating Officerdisposed(F)3.2K$320.81$1.0M
Apr 26, 2026Orr John FEVP & Chief Operating Officerdisposed(M)8.3K—$0
Mar 31, 2026Huffard John C JrDirectoracquired(A)184.669$287.00$53K
Mar 31, 2026ANDERSON RICHARD HDirectoracquired(A)233.45$287.00$67K
Feb 20, 2026Jones Christopher TDirectoracquired(A)22.362$315.71$7K
Feb 20, 2026Heitkamp Mary KathrynDirectoracquired(A)7.744$315.71$2K
Feb 20, 2026Fahmy SamehDirectoracquired(A)7.744$315.71$2K
Feb 20, 2026Donadio Marcela EDirectoracquired(A)37.043$315.71$12K
Feb 20, 2026DeBiase Francesca A.Directoracquired(A)9.105$315.71$3K
Feb 20, 2026Davidson Phillip SDirectoracquired(A)10.686$315.71$3K
Feb 20, 2026Clyburn William Jr.Directoracquired(A)7.744$315.71$2K
Feb 20, 2026Huffard John C JrDirectoracquired(A)11.72$316.23$4K
Feb 20, 2026Huffard John C JrDirectoracquired(A)22.362$315.71$7K
Feb 20, 2026ANDERSON RICHARD HDirectoracquired(A)5.411$316.23$2K
Feb 20, 2026ANDERSON RICHARD HDirectoracquired(A)10.087$315.71$3K
Feb 20, 2026Ryerkerk LoriDirectoracquired(A)3.055$315.71$965
Feb 20, 2026LAMPHERE GILBERT HDirectoracquired(A)2.66$315.71$840
Jan 30, 2026LAMPHERE GILBERT HDirectoracquired(M)700—$0
Jan 30, 2026LAMPHERE GILBERT HDirectoracquired(A)622—$0
Jan 30, 2026LAMPHERE GILBERT HDirectordisposed(M)700—$0
Jan 30, 2026Ryerkerk LoriDirectoracquired(A)622—$0
Jan 30, 2026Jones Christopher TDirectoracquired(A)622—$0
Jan 30, 2026Huffard John C JrDirectoracquired(A)622—$0
Jan 30, 2026Heitkamp Mary KathrynDirectoracquired(A)622—$0
Jan 30, 2026Davidson Phillip SDirectoracquired(A)622—$0
Jan 30, 2026Fahmy SamehDirectoracquired(A)622—$0
Jan 30, 2026Donadio Marcela EDirectoracquired(A)622—$0
Jan 30, 2026Clyburn William Jr.Directoracquired(A)622—$0
Jan 30, 2026DeBiase Francesca A.Directoracquired(A)622—$0
Jan 30, 2026ANDERSON RICHARD HDirectoracquired(A)968—$0
Jan 30, 2026Moore Claiborne LVice President & Controlleracquired(M)421—$0
Jan 30, 2026Moore Claiborne LVice President & Controlleracquired(M)252—$0
Jan 30, 2026Moore Claiborne LVice President & Controllerdisposed(F)69$289.24$20K
Jan 30, 2026Moore Claiborne LVice President & Controllerdisposed(F)115$289.24$33K
Jan 30, 2026Moore Claiborne LVice President & Controlleracquired(A)823—$0
Jan 30, 2026Moore Claiborne LVice President & Controllerdisposed(M)252—$0
Jan 30, 2026Moore Claiborne LVice President & Controllerdisposed(M)421—$0
Jan 30, 2026Orr John FEVP & Chief Operating Officeracquired(M)803—$0
Jan 30, 2026Orr John FEVP & Chief Operating Officeracquired(M)702—$0
Jan 30, 2026Orr John FEVP & Chief Operating Officerdisposed(F)191$289.24$55K
Jan 30, 2026Orr John FEVP & Chief Operating Officerdisposed(F)219$289.24$63K
Jan 30, 2026Orr John FEVP & Chief Operating Officeracquired(A)4.3K—$0
Jan 30, 2026Orr John FEVP & Chief Operating Officerdisposed(M)702—$0
Jan 30, 2026Orr John FEVP & Chief Operating Officerdisposed(M)803—$0
Jan 30, 2026George Mark RPresident & CEO, Directoracquired(M)3.0K—$0
Jan 30, 2026George Mark RPresident & CEO, Directoracquired(M)712—$0
Jan 30, 2026George Mark RPresident & CEO, Directordisposed(F)279$289.24$81K
Jan 30, 2026George Mark RPresident & CEO, Directordisposed(F)1.2K$289.24$337K
Jan 30, 2026George Mark RPresident & CEO, Directoracquired(A)19.0K—$0
Jan 30, 2026George Mark RPresident & CEO, Directordisposed(M)712—$0
Jan 30, 2026George Mark RPresident & CEO, Directordisposed(M)3.0K—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOacquired(M)673—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOacquired(M)252—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOacquired(M)135—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOacquired(M)15—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(F)5$289.24$1K
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(F)37$289.24$11K
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(F)69$289.24$20K
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(F)183$289.24$53K
Jan 30, 2026Zampi Jason AndrewEVP & CFOacquired(A)4.1K—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(M)15—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(M)135—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(M)252—$0
Jan 30, 2026Zampi Jason AndrewEVP & CFOdisposed(M)673—$0
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officeracquired(M)777—$0
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officeracquired(M)527—$0
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officerdisposed(F)144$289.24$42K
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officerdisposed(F)212$289.24$61K
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officeracquired(A)4.1K—$0
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officerdisposed(M)527—$0
Jan 30, 2026Elkins Claude EEVP & Chief Commercial Officerdisposed(M)777—$0
Jan 30, 2026Bhatt AnilEVP & CIDOacquired(M)641—$0
Jan 30, 2026Bhatt AnilEVP & CIDOacquired(M)220—$0
Jan 30, 2026Bhatt AnilEVP & CIDOdisposed(F)60$289.24$17K
Jan 30, 2026Bhatt AnilEVP & CIDOdisposed(F)175$289.24$51K
Jan 30, 2026Bhatt AnilEVP & CIDOacquired(A)3.4K—$0
Jan 30, 2026Bhatt AnilEVP & CIDOdisposed(M)220—$0
Jan 30, 2026Bhatt AnilEVP & CIDOdisposed(M)641—$0
Jan 27, 2026George Mark RPresident & CEO, Directoracquired(M)775—$0
Jan 27, 2026George Mark RPresident & CEO, Directordisposed(F)303$289.90$88K
Jan 27, 2026George Mark RPresident & CEO, Directordisposed(M)775—$0
Jan 27, 2026Moore Claiborne LVice President & Controlleracquired(M)254—$0
Jan 27, 2026Moore Claiborne LVice President & Controllerdisposed(F)70$289.90$20K
Jan 27, 2026Moore Claiborne LVice President & Controllerdisposed(M)254—$0
Jan 27, 2026Zampi Jason AndrewEVP & CFOacquired(M)220—$0
Jan 27, 2026Zampi Jason AndrewEVP & CFOdisposed(F)60$289.90$17K

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.

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