HARBOR CAPITAL ADVISORS, INC.

Position in KOP — Koppers Holdings Inc.

CIK 1039128 CHICAGO, IL

Position in KOP

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$715,436

+$145,564 QoQ

Shares Held

15,934

+8.2% QoQ

Ownership

0.084%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

#85

of 217 holders

Holding Since

Jun 2023

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

HARBOR CAPITAL ADVISORS, INC. holds $10,074,835 across 19 Specialty Chemicals names. KOP ranks #5 (7.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	SXT	Sensient Technologies Corp	22,523	$2,776,860
2	CC	Chemours Co	123,618	$2,536,641
3	ASH	Ashland Inc.	24,005	$1,581,689
4	FUL	Fuller H B Co	18,721	$1,091,247
5	KOP	Koppers Holdings Inc. This page	15,934	$715,436
6	DD	DuPont de Nemours, Inc.	4,566	$619,332
7	SOLS	Solstice Advanced Materials Inc.	6,610	$585,646
8	CBT	Cabot Corp	528	$47,952

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$715,436	15,934	+8.2%	Shares	Sole	2026-08-07
2026-03-31	$569,872	14,733	+75.9%	Shares	Sole	2026-04-28
2025-12-31	$226,876	8,378	+2.3%	Shares	Sole	2026-01-20
2025-09-30	$229,376	8,192	+47.4%	Shares	Sole	2025-10-15
2025-06-30	$178,657	5,557	-8.7%	Shares	Sole	2025-07-09
2025-03-31	$170,436	6,087	-36.8%	Shares	Sole	2025-04-14
2024-12-31	$311,914	9,627	-4.5%	Shares	Sole	2025-01-10
2024-09-30	$368,331	10,083	-8.1%	Shares	Sole	2024-10-29
2024-06-30	$405,854	10,972	+4.1%	Shares	Sole	2024-07-09
2024-03-31	$581,381	10,538	+14.3%	Shares	Sole	2024-05-13
2023-12-31	$472,094	9,217	+5.9%	Shares	Sole	2024-01-08
2023-09-30	$344,322	8,706	-10.4%	Shares	Sole	2023-10-20
2023-06-30	$331,417	9,719	—	Shares	Sole	2023-07-11
No filing history on record for this holder in this stock.