阿姆斯壯世界工業公司
US ˙ NYSE ˙ US04247X1028

SecurityAWI / Armstrong World Industries, Inc.
InstitutionSmithfield Trust Co
Latest Disclosed Ownership343 shares
Latest Disclosed Value $ 58
Smithfield Trust Co ownership in AWI / Armstrong World Industries, Inc.

On May 8, 2026 - Smithfield Trust Co filed a 13F-HR form disclosing ownership of 343 shares of Armstrong World Industries, Inc. (US:AWI) valued at $56,526 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 343 shares of Armstrong World Industries, Inc.. The current value of the position is $52,393 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)
2026-05-08 2026-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0025
2026-02-09 2025-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0029
2025-11-07 2025-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0030
2025-08-08 2025-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0026
2025-05-09 2025-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0024
2025-02-06 2024-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0024
2024-11-12 2024-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0022
2024-07-31 2024-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0020
2024-05-07 2024-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0023
2024-02-07 2023-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0019
2023-11-06 2023-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0015
2023-08-08 2023-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0016
2023-05-11 2023-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 0.0016
2023-02-13 2022-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 0 -100.00 0.0016
2022-11-14 2022-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 28 7.69 0.0020
2022-08-11 2022-06-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 26 -13.33 0.0018
2022-05-16 2022-03-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 30 -23.08 0.0019
2022-02-14 2021-12-31 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 39 18.18 0.0024
2021-11-12 2021-09-30 13F ARMSTRONG WORLD INDS INC COM 04247X102 343 0 0.00 33 -10.81 0.0022
2021-07-26 2021-06-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 343 0 0.00 37 19.35 0.0025
2021-05-14 2021-03-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 343 0 0.00 31 19.23 0.0021
2021-02-12 2020-12-31 13F ARMSTRONG WORLD INDS INC COM COMMON STOCK 04247X102 343 0 0.00 26 8.33 0.0019
2020-11-16 2020-09-30 13F ARMSTRONG WORLD INDS INC COM COMMON STOCK 04247X102 343 0 0.00 24 -11.11 0.0020
2020-08-14 2020-06-30 13F ARMSTRONG WORLD INDS INC COM COMMON STOCK 04247X102 343 0 0.00 27 0.00 0.0024
2020-05-05 2020-03-31 13F ARMSTRONG WORLD INDS INC COM COMMON STOCK 04247X102 343 -1,240 -78.33 27 -81.88 0.0028
2020-02-13 2019-12-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 149 -2.61 0.0138
2019-10-30 2019-09-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 153 -0.65 0.0152
2019-08-06 2019-06-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 154 22.22 0.0159
2019-04-30 2019-03-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 126 36.96 0.0137
2019-02-04 2018-12-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 92 -16.36 0.0107
2018-11-06 2018-09-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 110 10.00 0.0119
2018-07-16 2018-06-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 100 12.36 0.0115
2018-05-10 2018-03-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 0 0.00 89 -7.29 0.0108
2018-02-02 2017-12-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 1,583 -2,437 -60.62 96 -53.40 0.0117
2017-11-03 2017-09-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 4,020 -3,730 -48.13 206 -42.30 0.0279
2017-07-31 2017-06-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 7,750 -1,061 -12.04 357 -12.07 0.0523
2017-05-01 2017-03-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 8,811 -2,137 -19.52 406 -11.35 0.0636
2017-02-08 2016-12-31 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 10,948 3,378 44.62 458 46.33 0.0769
2016-11-03 2016-09-30 13F ARMSTRONG WORLD INDS INC NEWCOM COMMON STOCK 04247X102 7,570 7,570 313 0.0558
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.