Quantum Portfolio Management LLC

Position in CBT — Cabot Corp

CIK 2003672 New York, NY

Position in CBT

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$121,153

-$99,704 QoQ

Shares Held

1,334

-49.6% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

#278

of 388 holders

Holding Since

Dec 2023

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

Quantum Portfolio Management LLC holds $1,084,979 across 6 Specialty Chemicals names. CBT ranks #3 (11.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LIN	Linde PLC	947	$491,436
2	ALB	Albemarle Corp	2,750	$371,332
3	CBT	Cabot Corp This page	1,334	$121,153
4	OEC	Orion S.A.	6,518	$43,214
5	KOP	Koppers Holdings Inc.	649	$29,140
6	HWKN	Hawkins Inc	202	$28,704

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$121,153	1,334	-49.6%	Shares	Sole	2026-08-14
2023-12-31	$220,857	2,645	—	Shares	Sole	2024-01-26
No filing history on record for this holder in this stock.