Armstrong World Industries, Inc.
US ˙ NYSE ˙ US04247X1028

SecurityAWI / Armstrong World Industries, Inc.
InstitutionExodusPoint Capital Management, LP
Latest Disclosed Ownership37,900 shares
Latest Disclosed Value $ 6,245,920
ExodusPoint Capital Management, LP reports 164.89% increase in ownership of AWI / Armstrong World Industries, Inc.

On May 14, 2026 - ExodusPoint Capital Management, LP filed a 13F-HR form disclosing ownership of 37,900 shares of Armstrong World Industries, Inc. (US:AWI) valued at $6,245,920 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2025 disclosing 14,308 shares of Armstrong World Industries, Inc.. This represents a change in shares of 164.89% during the quarter. The current value of the position is $5,880,185 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 37,900 23,592 164.89 6,246 122.72 0.0504
2025-11-14 2025-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 14,308 -21,061 -59.55 2,805 55,980.00 0.0287
2025-08-13 2025-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 35,369 35,369 6 0.0504
2025-05-14 2025-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 0 -9,009 -100.00 0 -100.00
2025-02-12 2024-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 9,009 -11,519 -56.11 1 -50.00 0.0087
2024-11-12 2024-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 20,528 20,528 3 0.0164
2024-08-13 2024-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 0 -43,639 -100.00 0 -100.00
2024-05-14 2024-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 43,639 43,639 5 0.0414
2024-02-13 2023-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 0 -7,539 -100.00 0 0.0000
2023-11-13 2023-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 7,539 -35,645 -82.54 1 -100.00 0.0052
2023-08-11 2023-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 43,184 24,852 135.57 3 200.00 0.0258
2023-05-11 2023-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 18,332 -19,653 -51.74 1 -50.00 0.0108
2023-02-13 2022-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 37,985 27,443 260.32 3 -99.76 0.0378
2022-11-10 2022-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 10,542 1,489 16.45 835 22.97 0.0109
2022-08-22 2022-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 9,053 9,053 679 0.0083
2021-08-16 2021-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 0 -12,537 -100.00 0 -100.00
2021-05-17 2021-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 12,537 -7,691 -38.02 1,129 -24.98 0.0165
2021-02-16 2020-12-31 13F ARMSTRONG WORLD INDS COM 04247X102 20,228 13,102 183.86 1,505 207.14 0.0147
2020-11-16 2020-09-30 13F ARMSTRONG WORLD INDS COM 04247X102 7,126 -34,767 -82.99 490 -85.00 0.0098
2020-08-14 2020-06-30 13F ARMSTRONG WORLD INDS COM 04247X102 41,893 41,893 3,266 0.0848
2020-02-14 2019-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 0 -13,073 -100.00 0 -100.00
2019-11-14 2019-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 13,073 1,330 11.33 1,264 10.78 0.0442
2019-08-14 2019-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 11,743 11,743 1,141 0.0454
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.