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GHCGraham Holdings Co

Market cap
$5.14B
as of 2026-10-23
Latest close
$1,213.48
as of 2026-10-23
Sector
Industrials
as of 2026-10-24
Industry
Conglomerates
as of 2026-10-24

Cluster

No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).

Form 4 historysince 2023-10-03

Dashed line = amended filing (Form 4/A)

InsiderTradedFiledTypeSharesPriceValueOwned after10b5-1 planFiling
Conley Danielle Y.Oct 1Oct 2A19$1,139.10$21,643480NoForm 4
Davis Christopher COct 1Oct 2A24$1,139.10$27,3385,638NoForm 4
Markell Jack A.Oct 1Oct 2A7$1,139.10$7,97455NoForm 4
Mulcahy Anne MOct 1Oct 2A21$1,139.10$23,921779NoForm 4
Wagoner G Richard JrOct 1Oct 2A21$1,139.10$23,9211,575NoForm 4
Maas, JacobExecutive VPAug 28Aug 31A1,000$0.00$07,657NoForm 4
Maas, JacobExecutive VPAug 28Aug 31F501$1,159.23$580,7747,156NoForm 4
Graham DonaldAug 13Aug 14J · derivative12,633not reportednot reported375,592NoForm 4
O'Shaughnessy LauraAug 13Aug 14J4,211not reportednot reported22,865NoForm 4
O'Shaughnessy LauraAug 13Aug 14J · derivative4,211not reportednot reported15,711NoForm 4
O'Shaughnessy LauraAug 13Aug 14J · derivative4,211not reportednot reported19,922NoForm 4
O'Shaughnessy Timothy JPresident and CEOAug 13Aug 14J4,211not reportednot reported22,878NoForm 4
O'Shaughnessy Timothy JPresident and CEOAug 13Aug 14J · derivative4,211not reportednot reported15,711NoForm 4
O'Shaughnessy Timothy JPresident and CEOAug 13Aug 14J · derivative4,211not reportednot reported19,922NoForm 4
Conley Danielle Y.Jul 1Jul 6A19$1,161.11$22,061461NoForm 4
Davis Christopher CJul 1Jul 6A23$1,161.11$26,7065,614NoForm 4
Markell Jack A.Jul 1Jul 6A7$1,161.11$8,12848NoForm 4
Mulcahy Anne MJul 1Jul 6A21$1,161.11$24,383758NoForm 4
Wagoner G Richard JrJul 1Jul 6A21$1,161.11$24,3831,554NoForm 4
O'Shaughnessy Timothy JPresident and CEOMay 26May 28J5,600not reportednot reportednot reportedNoForm 4
O'Shaughnessy Timothy JPresident and CEOMay 26May 28J400not reportednot reported27,087NoForm 4
O'Shaughnessy Timothy JPresident and CEOMay 26May 28J · derivative6,000not reportednot reported11,500NoForm 4
Weymouth KatharineMay 26May 28J6,000not reportednot reported7,615NoForm 4
Weymouth KatharineMay 26May 28J · derivative6,000not reportednot reported30,000NoForm 4
O'Shaughnessy LauraMay 26May 28J5,600not reportednot reportednot reportedNoForm 4
O'Shaughnessy LauraMay 26May 28J400not reportednot reported27,076NoForm 4
O'Shaughnessy LauraMay 26May 28J · derivative6,000not reportednot reported11,500NoForm 4
Conley Danielle Y.Apr 1Apr 2A21$1,061.70$22,296442NoForm 4
Davis Christopher CApr 1Apr 2A25$1,061.70$26,5435,591NoForm 4
Markell Jack A.Apr 1Apr 2A8$1,061.70$8,49441NoForm 4
Mulcahy Anne MApr 1Apr 2A23$1,061.70$24,419737NoForm 4
Wagoner G Richard JrApr 1Apr 2A23$1,061.70$24,4191,533NoForm 4
Allen TonyJul 30, 2025Mar 10S7$942.89Sale −$6,6008NoForm 4
Maas, JacobExecutive VPJan 16Jan 21A1,000$0.00$07,034NoForm 4
Maas, JacobExecutive VPJan 16Jan 21F377$1,150.50$433,7396,657NoForm 4
Conley Danielle Y.Jan 2Jan 5A20$1,091.18$21,824421NoForm 4
Davis Christopher CJan 2Jan 5A25$1,091.18$27,2805,566NoForm 4
Markell Jack A.Jan 2Jan 5A8$1,091.18$8,72933NoForm 4
Mulcahy Anne MJan 2Jan 5A22$1,091.18$24,006714NoForm 4
Wagoner G Richard JrJan 2Jan 5A22$1,091.18$24,0061,510NoForm 4
Weymouth KatharineDec 29, 2025Dec 29, 2025J · derivative36,000not reportednot reported36,000NoForm 4
O'Shaughnessy Timothy JPresident and CEONov 11, 2025Nov 13, 2025M7,582$872.01$6,611,58034,323NoForm 4
O'Shaughnessy Timothy JPresident and CEONov 11, 2025Nov 13, 2025F6,839$1,085.29$7,422,29827,484NoForm 4
O'Shaughnessy Timothy JPresident and CEONov 11, 2025Nov 13, 2025M · derivative7,582$872.01$6,611,580not reportedNoForm 4
O'Shaughnessy LauraNov 11, 2025Nov 13, 2025M7,582$872.01$6,611,58034,315NoForm 4
O'Shaughnessy LauraNov 11, 2025Nov 13, 2025F6,839$1,085.29$7,422,29827,476NoForm 4
O'Shaughnessy LauraNov 11, 2025Nov 13, 2025M · derivative7,582$872.01$6,611,580not reportedNoForm 4
Maas, JacobExecutive VPOct 20, 2025Oct 22, 2025A1,000$0.00$06,535NoForm 4
Maas, JacobExecutive VPOct 20, 2025Oct 22, 2025F501$987.72$494,8486,034NoForm 4
O'Shaughnessy LauraOct 7, 2025Oct 9, 2025J2,800not reportednot reported26,733NoForm 4
O'Shaughnessy LauraOct 7, 2025Oct 9, 2025J · derivative2,800not reportednot reported5,500NoForm 4
O'Shaughnessy Timothy JPresident and CEOOct 7, 2025Oct 9, 2025J2,800not reportednot reported26,741NoForm 4
O'Shaughnessy Timothy JPresident and CEOOct 7, 2025Oct 9, 2025J · derivative2,800not reportednot reported5,500NoForm 4
Conley Danielle Y.Oct 1, 2025Oct 2, 2025A19$1,165.25$22,140401NoForm 4
Davis Christopher COct 1, 2025Oct 2, 2025A23$1,165.25$26,8015,541NoForm 4
Markell Jack A.Oct 1, 2025Oct 2, 2025A7$1,165.25$8,15725NoForm 4
Mulcahy Anne MOct 1, 2025Oct 2, 2025A21$1,165.25$24,470692NoForm 4
Wagoner G Richard JrOct 1, 2025Oct 2, 2025A21$1,165.25$24,4701,488NoForm 4
O'Shaughnessy Timothy JPresident and CEOSep 29, 2025Sep 30, 2025M7,580$872.01$6,609,83632,007NoForm 4
O'Shaughnessy Timothy JPresident and CEOSep 29, 2025Sep 30, 2025F6,568$1,190.80$7,821,17425,439NoForm 4
O'Shaughnessy Timothy JPresident and CEOSep 29, 2025Sep 30, 2025M · derivative7,580$872.01$6,609,8367,582NoForm 4
O'Shaughnessy LauraSep 29, 2025Sep 30, 2025M7,580$872.01$6,609,83629,307NoForm 4
O'Shaughnessy LauraSep 29, 2025Sep 30, 2025F6,568$1,190.80$7,821,17422,739NoForm 4
O'Shaughnessy LauraSep 29, 2025Sep 30, 2025M · derivative7,580$872.01$6,609,8367,582NoForm 4
O'Shaughnessy LauraAug 20, 2025Aug 22, 2025M7,580$872.01$6,609,83628,605NoForm 4
O'Shaughnessy LauraAug 20, 2025Aug 22, 2025F6,878$1,070.83$7,365,16921,727NoForm 4
O'Shaughnessy LauraAug 20, 2025Aug 22, 2025M · derivative7,580$872.01$6,609,83615,162NoForm 4
O'Shaughnessy Timothy JPresident and CEOAug 20, 2025Aug 22, 2025M7,580$872.01$6,609,83631,305NoForm 4
O'Shaughnessy Timothy JPresident and CEOAug 20, 2025Aug 22, 2025F6,878$1,070.83$7,365,16924,427NoForm 4
O'Shaughnessy Timothy JPresident and CEOAug 20, 2025Aug 22, 2025M · derivative7,580$872.01$6,609,83615,162NoForm 4
Maas, JacobExecutive VPAug 19, 2025Aug 21, 2025M2,000$804.80$1,609,6007,287NoForm 4
Maas, JacobExecutive VPAug 19, 2025Aug 21, 2025F1,752$1,071.80$1,877,7945,535NoForm 4
Maas, JacobExecutive VPAug 19, 2025Aug 21, 2025M · derivative2,000$804.80$1,609,600not reportedNoForm 4
Markell Jack A.Jul 1, 2025Jul 2, 2025A9$954.49$8,59018NoForm 4
Davis Christopher CJul 1, 2025Jul 2, 2025A28$954.49$26,7265,518NoForm 4
Wagoner G Richard JrJul 1, 2025Jul 2, 2025A26$954.49$24,8171,467NoForm 4
Conley Danielle Y.Jul 1, 2025Jul 2, 2025A23$954.49$21,953382NoForm 4
Mulcahy Anne MJul 1, 2025Jul 2, 2025A26$954.49$24,817671NoForm 4
Wagoner G Richard JrApr 1, 2025Apr 3, 2025A25$970.97$24,2741,441NoForm 4
Conley Danielle Y.Apr 1, 2025Apr 3, 2025A23$970.97$22,332359NoForm 4
Davis Christopher CApr 1, 2025Apr 3, 2025A28$970.97$27,1875,490NoForm 4
Mulcahy Anne MApr 1, 2025Apr 3, 2025A25$970.97$24,274645NoForm 4
Markell Jack A.Apr 1, 2025Apr 3, 2025A9$970.97$8,7399NoForm 4
Maas, JacobExecutive VPJan 27, 2025Jan 29, 2025A1,000$0.00$05,725NoForm 4
Maas, JacobExecutive VPJan 27, 2025Jan 29, 2025F438$918.26$402,1985,287NoForm 4
Snyman Marcel A.VP-Chief Accounting OfficerJan 6, 2025Jan 6, 2025S159$881.30Sale −$140,127442YesForm 4
Conley Danielle Y.Jan 2, 2025Jan 6, 2025A25$871.87$21,797336NoForm 4
Davis Christopher CJan 2, 2025Jan 6, 2025A31$871.87$27,0285,462NoForm 4
Mulcahy Anne MJan 2, 2025Jan 6, 2025A28$871.87$24,412620NoForm 4
Wagoner G Richard JrJan 2, 2025Jan 6, 2025A28$871.87$24,4121,416NoForm 4
Snyman Marcel A.VP-Chief Accounting OfficerJan 2, 2025Jan 6, 2025A229$0.00$0685YesForm 4
Snyman Marcel A.VP-Chief Accounting OfficerJan 2, 2025Jan 6, 2025F84$871.87$73,237601YesForm 4
Stonesifer Sandra M.VP, Chief HR OfficerJan 2, 2025Jan 6, 2025A401$0.00$01,543NoForm 4
Stonesifer Sandra M.VP, Chief HR OfficerJan 2, 2025Jan 6, 2025F221$871.87$192,6831,322NoForm 4
Rosen Andrew StephenExecutive Vice PresidentJan 2, 2025Jan 6, 2025A344$0.00$037,773NoForm 4
Maddrey Nicole MarieSr. VP-GC & SecretaryJan 2, 2025Jan 6, 2025A401$0.00$04,223NoForm 4
Maas, JacobExecutive VPJan 2, 2025Jan 6, 2025A430$0.00$04,982NoForm 4
Maas, JacobExecutive VPJan 2, 2025Jan 6, 2025F257$871.87$224,0714,725NoForm 4
Cooney Wallace R.Chief Financial OfficerJan 2, 2025Jan 6, 2025A430$0.00$03,746NoForm 4
Cooney Wallace R.Chief Financial OfficerJan 2, 2025Jan 6, 2025F222$871.87$193,5553,524NoForm 4
Weymouth KatharineNov 13, 2024Nov 14, 2024S378$949.26Sale −$358,8201,615NoForm 4
Maas, JacobExecutive VPNov 5, 2024Nov 8, 2024A1,000$0.00$04,552NoForm 4
O'Shaughnessy Timothy JPresident and CEONov 1, 2024Nov 5, 2024M25,754$719.15$18,520,98947,578NoForm 4
O'Shaughnessy Timothy JPresident and CEONov 1, 2024Nov 5, 2024F23,858$843.67$20,128,27923,720NoForm 4
O'Shaughnessy Timothy JPresident and CEONov 1, 2024Nov 5, 2024M · derivative25,754$719.15$18,520,989not reportedNoForm 4
O'Shaughnessy LauraNov 1, 2024Nov 5, 2024M25,754$719.15$18,520,98944,878NoForm 4
O'Shaughnessy LauraNov 1, 2024Nov 5, 2024F23,858$843.67$20,128,27921,020NoForm 4
O'Shaughnessy LauraNov 1, 2024Nov 5, 2024M · derivative25,754$719.15$18,520,989not reportedNoForm 4
O'Shaughnessy Timothy JPresident and CEOOct 15, 2024Oct 17, 2024M25,752$719.15$18,519,55145,950NoForm 4
O'Shaughnessy Timothy JPresident and CEOOct 15, 2024Oct 17, 2024F24,126$823.33$19,863,66021,824NoForm 4
O'Shaughnessy Timothy JPresident and CEOOct 15, 2024Oct 17, 2024M · derivative25,752$719.15$18,519,55125,754NoForm 4
O'Shaughnessy LauraOct 15, 2024Oct 17, 2024M25,752$719.15$18,519,55143,250NoForm 4
O'Shaughnessy LauraOct 15, 2024Oct 17, 2024F24,126$823.33$19,863,66019,124NoForm 4
O'Shaughnessy LauraOct 15, 2024Oct 17, 2024M · derivative25,752$719.15$18,519,55125,754NoForm 4
Wagoner G Richard JrOct 1, 2024Oct 2, 2024A30$806.69$24,2011,388NoForm 4
Mulcahy Anne MOct 1, 2024Oct 2, 2024A30$806.69$24,201592NoForm 4
Davis Christopher COct 1, 2024Oct 2, 2024A34$806.69$27,4275,431NoForm 4
Conley Danielle Y.Oct 1, 2024Oct 2, 2024A27$806.69$21,781311NoForm 4
O'Shaughnessy Timothy JPresident and CEOSep 23, 2024Sep 25, 2024M25,752$719.15$18,519,55144,610NoForm 4
O'Shaughnessy Timothy JPresident and CEOSep 23, 2024Sep 25, 2024F24,412$800.60$19,544,24720,198NoForm 4
O'Shaughnessy Timothy JPresident and CEOSep 23, 2024Sep 25, 2024M · derivative25,752$719.15$18,519,55151,506NoForm 4
O'Shaughnessy LauraSep 23, 2024Sep 25, 2024M25,752$719.15$18,519,55141,910NoForm 4
O'Shaughnessy LauraSep 23, 2024Sep 25, 2024F24,412$800.60$19,544,24717,498NoForm 4
O'Shaughnessy LauraSep 23, 2024Sep 25, 2024M · derivative25,752$719.15$18,519,55151,506NoForm 4
Gayner Thomas SinnicksonSep 12, 2024Sep 13, 2024P100$743.30Purchase +$74,330700NoForm 4
Conley Danielle Y.Jul 1, 2024Jul 2, 2024A32$695.03$22,241284NoForm 4
Davis Christopher CJul 1, 2024Jul 2, 2024A39$695.03$27,1065,397NoForm 4
Mulcahy Anne MJul 1, 2024Jul 2, 2024A35$695.03$24,326562NoForm 4
Wagoner G Richard JrJul 1, 2024Jul 2, 2024A35$695.03$24,3261,358NoForm 4
Mulcahy Anne MMay 28, 2024May 29, 2024P135$745.07Purchase +$100,584662NoForm 4
Mulcahy Anne MApr 1, 2024Apr 2, 2024A32$761.13$24,356527NoForm 4
Davis Christopher CApr 1, 2024Apr 2, 2024A36$761.13$27,4015,358NoForm 4
Wagoner G Richard JrApr 1, 2024Apr 2, 2024A32$761.13$24,3561,323NoForm 4
Conley Danielle Y.Apr 1, 2024Apr 2, 20244/AA29$761.13$22,073252NoForm 4/A
Weymouth KatharineMar 14, 2024Mar 15, 2024S556$712.99Sale −$396,4221,993NoForm 4
Conley Danielle Y.Jan 2, 2024Jan 3, 2024A32$696.72$22,295223NoForm 4
Davis Christopher CJan 2, 2024Jan 3, 2024A39$696.72$27,1725,322NoForm 4
Mulcahy Anne MJan 2, 2024Jan 3, 2024A35$696.72$24,385495NoForm 4
Wagoner G Richard JrJan 2, 2024Jan 3, 2024A35$696.72$24,3851,291NoForm 4
Gayner Thomas SinnicksonNov 9, 2023Nov 9, 2023P100$607.24Purchase +$60,724600NoForm 4
Allen TonyNov 8, 2023Nov 9, 2023S75$619.03Sale −$46,42715NoForm 4
Allen TonyOct 2, 2023Oct 3, 2023A15$581.52$8,72390NoForm 4
Conley Danielle Y.Oct 2, 2023Oct 3, 2023A38$581.52$22,098191NoForm 4
Davis Christopher COct 2, 2023Oct 3, 2023A47$581.52$27,3315,283NoForm 4
Mulcahy Anne MOct 2, 2023Oct 3, 2023A42$581.52$24,424460NoForm 4
Wagoner G Richard JrOct 2, 2023Oct 3, 2023A42$581.52$24,4241,256NoForm 4