IRONWOOD INVESTMENT MANAGEMENT LLC

Position in CBT — Cabot Corp

CIK 1127761 BOSTON, MA

Position in CBT

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

Position Value

$1,634,578

+$281,559 QoQ

Shares Held

17,998

+0.2% QoQ

Ownership

0.035%

of shares outstanding

% of Portfolio

0.73%

of 13F equity value

Holder Rank

#114

of 388 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

IRONWOOD INVESTMENT MANAGEMENT LLC holds $5,626,131 across 4 Specialty Chemicals names. CBT ranks #2 (29.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KOP	Koppers Holdings Inc.	58,116	$2,609,408
2	CBT	Cabot Corp This page	17,998	$1,634,578
3	ASPN	Aspen Aerogels Inc	179,301	$1,136,768
4	AVNT	Avient Corp	6,639	$245,377

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,634,578	17,998	+0.2%	Shares	Sole	2026-08-14
2026-03-31	$1,353,019	17,966	-1.0%	Shares	Sole	2026-05-15
2025-12-31	$1,203,048	18,151	-0.1%	Shares	Sole	2026-02-12
2025-09-30	$1,382,056	18,173	-0.6%	Shares	Sole	2025-11-13
2025-06-30	$1,371,675	18,289	+17.3%	Shares	Sole	2025-08-13
2025-03-31	$1,296,402	15,593	-0.2%	Shares	Sole	2025-05-15
2024-12-31	$1,426,992	15,628	+0.6%	Shares	Sole	2025-02-10
2024-09-30	$1,735,564	15,528	-1.1%	Shares	Sole	2024-11-14
2024-06-30	$1,442,673	15,700	+0.2%	Shares	Sole	2024-08-16
2024-03-31	$1,443,944	15,661	-5.8%	Shares	Sole	2024-05-15
2023-12-31	$1,387,519	16,617	-0.9%	Shares	Sole	2024-02-14
2023-09-30	$1,162,004	16,775	-1.9%	Shares	Sole	2023-11-16
2023-06-30	$1,143,283	17,092	-1.8%	Shares	Sole	2023-08-11
2023-03-31	$1,334,455	17,412	-3.8%	Shares	Sole	2023-05-15
2022-12-31	$1,209,804	18,100	-3.8%	Shares	Sole	2023-01-31
2022-09-30	$1,202,282	18,818	-1.1%	Shares	Sole	2022-11-14
2022-06-30	$1,213,413	19,022	+0.1%	Shares	Sole	2022-08-12
2022-03-31	$1,300,610	19,012	-0.0%	Shares	Sole	2022-05-10
2021-12-31	$1,068,755	19,017	+1.4%	Shares	Sole	2022-02-10
2021-09-30	$939,950	18,754	-0.6%	Shares	Sole	2021-11-12
2021-06-30	$1,073,585	18,858	-1.2%	Shares	Sole	2021-08-16
2021-03-31	$1,001,027	19,089	-11.8%	Shares	Sole	2021-05-14
2020-12-31	$970,978	21,635	-1.3%	Shares	Sole	2021-02-12
2020-09-30	$789,633	21,916	-0.1%	Shares	Sole	2020-11-13
2020-06-30	$812,765	21,937	-0.5%	Shares	Sole	2020-08-17
2020-03-31	$575,815	22,045	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.