Latest insider trades

55 Form 4 trades in our database.

PPurchaseSSaleMOption exerciseAAward/GrantFTax withholdingGGift

ROBESON ROSE Msold10,000 shares ofNPKIat $13.492$135KAug 27 · filed Aug 31Details
Lewis Michael Asold2,013 shares ofNPKIat $14.26$29KAug 17 · filed Aug 19Details
Pederson Kristen J.granted6,614 shares ofNPKIat $0Jul 28 · filed Jul 29Details
Briggs Lorisold8,325 shares ofNPKIat $14.75$123KJun 8 · filed Jun 9Details
LANIGAN MATTHEWsold167,375 shares ofNPKIat $14.434$2.4MJun 3 · filed Jun 5Details
Fruge Mary Celesteexercised17,274 shares ofNPKIat $0Jun 1 · filed Jun 3Details
Fruge Mary Celestetax-withheld6,797 shares ofNPKIat $14.31$97KJun 1 · filed Jun 3Details
Fruge Mary Celestetax-withheld5,218 shares ofNPKIat $14.31$75KJun 1 · filed Jun 3Details
Fruge Mary Celestetax-withheld3,833 shares ofNPKIat $14.31$55KJun 1 · filed Jun 3Details
Briggs Lorisold10,446 shares ofNPKIat $14.578$152KJun 2 · filed Jun 3Details
Briggs Loriexercised24,340 shares ofNPKIat $0Jun 1 · filed Jun 3Details
Briggs Loritax-withheld6,777 shares ofNPKIat $14.31$97KJun 1 · filed Jun 3Details
Briggs Loritax-withheld9,577 shares ofNPKIat $14.31$137KJun 1 · filed Jun 3Details
Briggs Loritax-withheld5,401 shares ofNPKIat $14.31$77KJun 1 · filed Jun 3Details
LANIGAN MATTHEWexercised100,188 shares ofNPKIat $0Jun 1 · filed Jun 3Details
LANIGAN MATTHEWtax-withheld39,423 shares ofNPKIat $14.31$564KJun 1 · filed Jun 3Details
LANIGAN MATTHEWtax-withheld27,894 shares ofNPKIat $14.31$399KJun 1 · filed Jun 3Details
LANIGAN MATTHEWtax-withheld22,232 shares ofNPKIat $14.31$318KJun 1 · filed Jun 3Details
Piontek Greggexercised40,379 shares ofNPKIat $0Jun 1 · filed Jun 3Details
Piontek Greggtax-withheld11,241 shares ofNPKIat $14.31$161KJun 1 · filed Jun 3Details
Piontek Greggtax-withheld15,889 shares ofNPKIat $14.31$227KJun 1 · filed Jun 3Details
Piontek Greggtax-withheld8,959 shares ofNPKIat $14.31$128KJun 1 · filed Jun 3Details
Fruge Mary Celestegranted18,002 shares ofNPKIat $0May 19 · filed May 21Details
Briggs Lorigranted20,838 shares ofNPKIat $0May 19 · filed May 21Details
Meer Claudia Michelgranted8,558 shares ofNPKIat $0May 20 · filed May 21Details
MINGE JOHN Cgranted8,558 shares ofNPKIat $0May 20 · filed May 21Details
LANIGAN MATTHEWgranted85,771 shares ofNPKIat $0May 19 · filed May 21Details
CUTILLO JOSEPH Agranted8,558 shares ofNPKIat $0May 20 · filed May 21Details
LARSON RODERICK A.granted8,558 shares ofNPKIat $0May 20 · filed May 21Details
Lewis Michael Agranted8,558 shares ofNPKIat $0May 20 · filed May 21Details
Piontek Gregggranted34,566 shares ofNPKIat $0May 19 · filed May 21Details
ROBESON ROSE Mgranted10,862 shares ofNPKIat $0May 20 · filed May 21Details
Lewis Michael Asold2,013 shares ofNPKIat $15.302$31KMay 15 · filed May 19Details
Piontek Greggsold15,000 shares ofNPKIat $15.045$226KApr 9 · filed Apr 10Details
Piontek Greggsold35,000 shares ofNPKIat $14.51$508KApr 1 · filed Apr 3Details
Piontek Greggsold15,000 shares ofNPKIat $15.026$225KMar 25 · filed Mar 26Details
Fruge Mary Celestesold1,000 shares ofNPKIat $13.56$14KMar 16 · filed Mar 18Details
Fruge Mary Celesteexercised1,000 shares ofNPKIat $4.32$4KMar 16 · filed Mar 18Details
Fruge Mary Celestesold11,193 shares ofNPKIat $13.339$149KMar 6 · filed Mar 10Details
Fruge Mary Celesteexercised11,193 shares ofNPKIat $4.32$48KMar 6 · filed Mar 10Details
Piontek Greggsold35,000 shares ofNPKIat $14.017$491KMar 4 · filed Mar 5Details
Piontek Greggsold73,590 shares ofNPKIat $14.098$1MMar 4 · filed Mar 5Details
Piontek Greggexercised73,590 shares ofNPKIat $4.32$318KMar 4 · filed Mar 5Details
Lewis Michael Asold2,013 shares ofNPKIat $14.305$29KFeb 23 · filed Feb 25Details
Lewis Michael Asold2,013 shares ofNPKIat $12$24KNov 24, 2025 · filed Nov 25, 2025Details
LANIGAN MATTHEWgifted770,249 shares ofNPKIat $0Oct 3, 2025 · filed Oct 6, 2025Details
Briggs Lorisold10,108 shares ofNPKIat $11.511$116KOct 1, 2025 · filed Oct 3, 2025Details
LANIGAN MATTHEWsold1,000 shares ofNPKIat $10.38$10KSep 3, 2025 · filed Sep 4, 2025Details
LANIGAN MATTHEWexercised1,000 shares ofNPKIat $4.32$4KSep 3, 2025 · filed Sep 4, 2025Details
LANIGAN MATTHEWsold68,896 shares ofNPKIat $10.342$713KAug 22, 2025 · filed Aug 26, 2025Details