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Ken Griffin's Owens Corning (OC) position

Yes: as of Q1 2026, Ken Griffin holds 4K shares of OC worth $436K (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$436K
Shares held
4K
% of portfolio
0.0%
Est. average buy price (i)
$124.97
est. since Q1 2021
Quarter-end price
$108.22

Estimated trade prices

Average price in quarters with purchases
$135.12
Average prices in quarters with sales
  • Q1 2026: $119.21 (265K shares sold)
  • Q3 2025: $146.73 (715K shares sold)
  • Q2 2025: $138.09 (287K shares sold)
  • Q1 2025: $165.31 (165K shares sold)
  • Q3 2024: $168.42 (950K shares sold)
  • Q1 2024: $152.55 (289K shares sold)
  • Q4 2023: $132.46 (277K shares sold)
  • Q3 2023: $137.41 (112K shares sold)
  • Q4 2022: $87.66 (45K shares sold)
  • Q3 2022: $84.04 (28K shares sold)
  • Q1 2022: $91.89 (103K shares sold)
  • Q4 2021: $90.77 (617K shares sold)
  • Q3 2021: $94.03 (222K shares sold)

OC price vs Griffin's position

Dates
$50$100$150$2002026Sold 715K shares (95.8%) · Q3 2025. Average closing price $146.73 · Price range $136.56–$157.69715KsharessoldAdded 237K shares (757.7%) · Q4 2025. Average closing price $117.37 · Price range $98.28–$141.30237KsharespurchasedSold 265K shares (98.5%) · Q1 2026. Average closing price $119.21 · Price range $99.96–$138.45265Ksharessold← Earlier —6 purchases, 11 sells
Average closing price · filing quarter
$119.21
Price range · filing quarter
$99.96 – $138.45

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −265K −$32M −98.5% 4K May 15, 2026
Q4 2025 Added +237K +$28M +757.7% 269K Feb 17, 2026
Q3 2025 Reduced −715K −$105M −95.8% 31K Nov 14, 2025
Q2 2025 Reduced −287K −$40M −27.8% 746K Aug 14, 2025
Q1 2025 Reduced −165K −$27M −13.8% 1.0M May 15, 2025
Q4 2024 Added +1.1M +$204M +1,056.3% 1.2M Feb 14, 2025
Q3 2024 Reduced −950K −$160M −90.2% 104K Nov 14, 2024
Q2 2024 Added +564K +$98M +115.2% 1.1M Aug 14, 2024
Q1 2024 Reduced −289K −$44M −37.1% 490K May 15, 2024
Q4 2023 Reduced −277K −$37M −26.3% 778K Feb 14, 2024
Q3 2023 Reduced −112K −$15M −9.6% 1.1M Nov 14, 2023
Q2 2023 Added +412K +$45M +54.6% 1.2M Aug 14, 2023
Q1 2023 Added +18K +$1.7M +2.5% 755K May 15, 2023
Q4 2022 Reduced −45K −$3.9M −5.7% 737K Feb 14, 2023
Q3 2022 Reduced −28K −$2.3M −3.4% 782K Nov 14, 2022
Q2 2022 Added +679K +$60M +517.7% 810K Aug 15, 2022
Q1 2022 Reduced −103K −$9.4M −43.9% 131K May 16, 2022
Q4 2021 Reduced −617K −$56M −72.5% 234K Feb 14, 2022
Q3 2021 Reduced −222K −$21M −20.7% 850K Nov 15, 2021
Q2 2021 Added +875K +$87M +444.8% 1.1M Aug 16, 2021
Q1 2021 First covered 197K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

More Griffin positions

Common questions

Does Ken Griffin own OC?

Yes. As of Q1 2026, Ken Griffin disclosed 4K shares of OC, worth $436K. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy OC?

Ken Griffin held OC since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell OC?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in OC. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of OC does Ken Griffin own?

Ken Griffin disclosed 4K shares of OC as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for OC?

Ken Griffin began building the OC position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.