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OC · Owens Corning

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$143.68 -2.03 (-1.39%) At close · Aug 27
Market Cap
$11.58B
Shares
79.05M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 689
Total Value: $13,240,171,425
Total Shares: 83,806,328
Showing 1–100 of 707 holdings by value · page 1 of 8

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 689 13F filers · Δ vs Mar 31, 2026
Top Holder
10.6%
Sep 2023 → Jun 2026 · range 10.6% – 14.3%
−0.8 pts
Top 5
29.6%
Sep 2023 → Jun 2026 · range 29.6% – 37.3%
−0.2 pts
Top 10
44.5%
Sep 2023 → Jun 2026 · range 43.5% – 48.0%
+1.0 pts
HHI
298
Sep 2023 → Jun 2026 · range 298 – 442
Broadly held−5

Quarterly Activity

vs Mar 31, 2026
New
139
Increased
228
Decreased
224
Sold Out
89
Unchanged
98
Holder count: +50
Institutional value: +51.1%
Shares held: +3.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 707
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1370946 CUSIP 690742101 13F (30d) 539 filings 520 filers Visit website Investor relations