O'Brien Greene & Co. Inc

Position in KWR — Quaker Chemical Corp

CIK 1768635 MEDIA, PA

Position in KWR

as of Jun 30, 2026 · filed Aug 6, 2026 Compact

Position Value

$913,343

+$133,552 QoQ

Shares Held

5,749

-8.4% QoQ

Ownership

0.033%

of shares outstanding

% of Portfolio

0.28%

of 13F equity value

Holder Rank

#122

of 312 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

O'Brien Greene & Co. Inc holds $3,633,941 across 5 Specialty Chemicals names. KWR ranks #1 (25.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KWR	Quaker Chemical Corp This page	5,749	$913,343
2	ECL	Ecolab Inc.	3,194	$889,880
3	LIN	Linde PLC	1,511	$784,118
4	SHW	Sherwin Williams Co	2,139	$736,500
5	SOLS	Solstice Advanced Materials Inc.	3,500	$310,100

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$913,343	5,749	-8.4%	Shares	Sole	2026-08-06
2026-03-31	$779,791	6,277	+57.1%	Shares	Sole	2026-05-06
2025-12-31	$548,553	3,995	-1.9%	Shares	Sole	2026-02-05
2025-09-30	$536,617	4,073	-0.4%	Shares	Sole	2025-11-10
2025-06-30	$457,722	4,089	-1.9%	Shares	Sole	2025-08-06
2025-03-31	$515,206	4,168	0.0%	Shares	Sole	2025-05-12
2024-12-31	$586,687	4,168	+13.3%	Shares	Sole	2025-02-03
2024-09-30	$620,043	3,680	-17.7%	Shares	Sole	2024-11-15
2024-06-30	$758,728	4,471	+12.3%	Shares	Sole	2024-08-12
2024-03-31	$817,305	3,982	0.0%	Shares	Sole	2024-05-02
2023-12-31	$849,838	3,982	0.0%	Shares	Sole	2024-02-02
2023-09-30	$637,120	3,982	+1.3%	Shares	Sole	2023-11-08
2023-06-30	$766,346	3,932	0.0%	Shares	Sole	2023-08-15
2023-03-31	$778,339	3,932	+0.0%	Shares	Sole	2023-05-03
2022-12-31	$656,083	3,931	-70.3%	Shares	Sole	2023-02-02
2022-09-30	$1,914,045	13,257	+196.8%	Shares	Sole	2022-11-09
2022-06-30	$667,756	4,466	0.0%	Shares	Sole	2022-08-11
2022-03-31	$771,769	4,466	0.0%	Shares	Sole	2022-05-18
2021-12-31	$1,030,662	4,466	+12.3%	Shares	Sole	2022-02-08
2021-09-30	$945,650	3,978	+0.3%	Shares	Sole	2021-11-12
2021-06-30	$940,932	3,967	0.0%	Shares	Sole	2021-08-09
2021-03-31	$967,035	3,967	-2.0%	Shares	Sole	2021-05-12
2020-12-31	$1,025,469	4,047	0.0%	Shares	Sole	2021-02-04
2020-09-30	$727,286	4,047	0.0%	Shares	Sole	2020-11-09
2020-06-30	$751,325	4,047	0.0%	Shares	Sole	2020-08-10
2020-03-31	$511,055	4,047	—	Shares	Sole	2020-05-07
No filing history on record for this holder in this stock.