Calamos Advisors’s Owens Corning OC Stock Holding History

Calamos Advisors’s Portfolio OC Stock Details OC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$318K	Buy	+2,939	New	+$350K	﹤0.01%	979
2017 Q3	–	Sell	-3,180	Closed	-$213K	–	644
2017 Q2	$213K	Sell	3,180 -1,280	-29%	-$80.3K	﹤0.01%	598
2017 Q1	$274K	Hold	4,460	–	–	﹤0.01%	581
2016 Q4	$230K	Buy	+4,460	New	+$231K	﹤0.01%	611

Other funds holding OC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

DSA

Davis Selected Advisers Tucson, Arizona $21.8B AUM 23.45% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Calamos Advisors's OC Position: Q1 2026 in Review

Calamos Advisors opened a new position in Owens Corning (OC) in Q1 2026: 2,939 shares worth $318K. The stake represents ﹤0.01% of the portfolio and ranks #979 among its holdings. This is a return to the name: Calamos Advisors previously reported a position in OC as recently as Q2 2017.

Calamos Advisors first reported a position in OC in Q4 2016 and has held it in 4 quarters since. 629 funds tracked by Wall St. Rank hold OC as of Q1 2026.

Calamos Advisors held 2,939 shares of Owens Corning worth $318K as of Q1 2026.
Owens Corning was a new Calamos Advisors position in Q1 2026.
Owens Corning made up ﹤0.01% of Calamos Advisors's portfolio in Q1 2026, its #979 holding.
Calamos Advisors first reported a position in Owens Corning in Q4 2016 and has held it in 4 quarters since.
629 funds tracked by Wall St. Rank held Owens Corning as of Q1 2026.

Based on Calamos Advisors's 13F filing for Q1 2026, filed 4 May 2026.