Boston Partners

Position in OC — Owens Corning

CIK 1386060 BOSTON, MA

Position in OC

as of Jun 30, 2026 · filed Aug 4, 2026 Compact

Position Value

$204,263

-$26,571,709 QoQ

Shares Held

1,285

-99.6% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#491

of 685 holders

Holding Since

Mar 2020

11 quarters on record

Voting authority Sole 78% Shared 0% None 22%

Industrials · as of Jun 30, 2026

Boston Partners holds $597,650,398 across 8 Building Products & Equipment names. OC ranks #8 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MAS	Masco Corp /De/	4,606,061	$374,795,181
2	CSL	Carlisle Companies Inc	439,955	$159,593,675
3	LPX	Louisiana-Pacific Corp	330,462	$25,994,139
4	ROCK	Gibraltar Industries, Inc.	464,628	$20,954,722
5	LMB	Limbach Holdings, Inc.	167,873	$12,926,221
6	BLDR	Builders FirstSource, Inc.	28,126	$2,516,714
7	NPKI	NPK International Inc.	41,828	$665,483
8	OC	Owens Corning This page	1,285	$204,263

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$204,263	1,285	-99.6%	Shares	Other	2026-08-04
2022-06-30	$26,775,972	360,328	-85.6%	Shares	Defined	2022-08-10
2022-03-31	$228,523,536	2,497,525	-42.6%	Shares	Other	2022-05-10
2021-12-31	$393,957,178	4,353,118	-12.3%	Shares	Other	2022-02-04
2021-09-30	$424,436,533	4,964,170	+2.3%	Shares	Other	2021-11-05
2021-06-30	$475,263,967	4,854,586	-18.7%	Shares	Other	2021-08-12
2021-03-31	$549,922,340	5,971,575	-23.5%	Shares	Defined	2021-05-10
2020-12-31	$591,176,187	7,803,276	-2.3%	Shares	Defined	2021-02-10
2020-09-30	$549,538,951	7,986,324	-4.6%	Shares	Defined	2020-11-13
2020-06-30	$466,615,570	8,368,285	-9.2%	Shares	Defined	2020-08-12
2020-03-31	$357,712,582	9,217,021	—	Shares	Defined	2020-05-13
No filing history on record for this holder in this stock.