Insider · CIK 0001806249

Apostolou Stephanie L

Reports to the SEC for 1 company · PITTSBURGH, PA

sec.gov

Transactions

Companies

Filings

CIK

0001806249

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-02-26	KOPKoppers Holdings Inc.A Award	Chief Legal&Sus Officer & Sec.	AAward	+7,223 sh	—	—	66,125
2026-02-26	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+174 sh	—	—	66,299
2026-02-26	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−3,149 sh	$37.24	−$117K	63,150
2026-02-26	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+174 sh	—	—	322
2026-02-26	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−174 sh	—	—	148
2026-01-05	KOPKoppers Holdings Inc.A Award	Chief Legal&Sus Officer & Sec.	AAward	+9,876 sh	—	—	59,753
2026-01-05	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+4,666 sh	—	—	64,419
2026-01-05	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+240 sh	—	—	64,659
2026-01-05	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−5,757 sh	$26.93	−$155K	58,902
2026-01-05	KOPKoppers Holdings Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−4,666 sh	—	—	0
2026-01-05	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−240 sh	—	—	148
2026-01-02	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+1,153 sh	—	—	4,666
2026-01-02	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+1,335 sh	—	—	1,335
2026-01-02	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+39 sh	—	—	388
2025-12-16	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+245 sh	—	—	349
2025-01-03	KOPKoppers Holdings Inc.A Award	Chief Legal&Sus Officer & Sec.	AAward	+13.6K sh	—	—	47,662
2025-01-03	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+6,867 sh	—	—	54,529
2025-01-03	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+210 sh	—	—	54,739
2025-01-03	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−5,690 sh	$31.72	−$180K	49,049
2025-01-03	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+2,630 sh	—	—	6,867
2025-01-03	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+1,439 sh	—	—	3,513
2025-01-03	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+69 sh	—	—	314
2025-01-03	KOPKoppers Holdings Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−6,867 sh	—	—	0
2025-01-03	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−210 sh	—	—	104
2024-12-16	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+115 sh	—	—	245
2024-03-01	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+26 sh	—	—	34,327
2024-03-01	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−788 sh	$52.97	−$41.7K	33,539
2024-03-01	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−26 sh	—	—	130
2024-01-05	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+4,760 sh	—	—	38,236
2024-01-05	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+102 sh	—	—	38,338
2024-01-05	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−4,037 sh	$47.32	−$191K	34,301
2024-01-05	KOPKoppers Holdings Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−4,760 sh	—	—	0
2024-01-05	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−102 sh	—	—	156
2024-01-04	KOPKoppers Holdings Inc.A Award	Chief Legal&Sus Officer & Sec.	AAward	+4,284 sh	—	—	33,476
2024-01-04	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+2,424 sh	—	—	4,760
2024-01-04	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+3,462 sh	—	—	4,237
2024-01-04	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+2,074 sh	—	—	2,074
2024-01-04	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+88 sh	—	—	258
2023-12-12	KOPKoppers Holdings Inc. · Dividend Equivalent RightsA Award	Chief Legal&Sus Officer & Sec.	AAward	+102 sh	—	—	170
2023-03-06	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+3 sh	—	—	28,517
2023-03-06	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−134 sh	$35.46	−$4,751.64	28,383
2023-03-06	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−3 sh	—	—	68
2023-03-03	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+14 sh	—	—	29,312
2023-03-03	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−798 sh	$37.55	−$30K	28,514
2023-03-03	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−14 sh	—	—	71
2023-01-05	KOPKoppers Holdings Inc.M Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	+14 sh	—	—	30,209.871
2023-01-05	KOPKoppers Holdings Inc.F Tax Payment	Chief Legal&Sus Officer & Sec.	FTax Payment	−911 sh	$28.58	−$26K	29,298.871
2023-01-05	KOPKoppers Holdings Inc. · Dividend Equivalent RightsM Exercise/Conversion	Chief Legal&Sus Officer & Sec.	MExercise/Conversion	−14 sh	—	—	74
2023-01-05	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+931 sh	—	—	2,336
2023-01-05	KOPKoppers Holdings Inc. · Restricted Stock UnitsA Award	Chief Legal&Sus Officer & Sec.	AAward	+775 sh	—	—	775

Recent filings

Accepted (ET)
Mar 24
Apostolou Stephanie L0001315257-26-000014
SEC(opens sec.gov)
Jan 64
Apostolou Stephanie L0001806249-26-000002
SEC(opens sec.gov)
Dec 174
Apostolou Stephanie L0001806249-25-000003
SEC(opens sec.gov)
Jan 74
Apostolou Stephanie L0000950170-25-002821
SEC(opens sec.gov)

Companies

Koppers Holdings Inc.Chief Legal&Sus Officer & Sec.KOP

Address

436 SEVENTH AVENUE

PITTSBURGH, PA, 15219