L.B. Foster Company
US ˙ NasdaqGS ˙ US3500601097

SecurityFSTR / L.B. Foster Company
Institution22nw, Lp
Latest Disclosed Ownership1,067,186 shares
Latest Disclosed Value $ 29,774,489
22nw, Lp reports 10.40% decrease in ownership of FSTR / L.B. Foster Company

On May 15, 2026 - 22nw, Lp filed a 13F-HR form disclosing ownership of 1,067,186 shares of L.B. Foster Company (US:FSTR) valued at $29,774,489 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,191,046 shares of L.B. Foster Company. This represents a change in shares of -10.40% during the quarter. The current value of the position is $44,202,844 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)
2026-05-15 2026-03-31 13F FOSTER L B COM 350060109 1,067,186 -123,860 -10.40 29,774 -7.24 20.4058
2026-02-13 2025-12-31 13F FOSTER L B COM 350060109 1,191,046 -122,075 -9.30 32,099 -9.30 13.5104
2025-11-14 2025-09-30 13F FOSTER L B COM 350060109 1,313,121 0 0.00 35,389 23.23 16.6722
2025-08-14 2025-06-30 13F FOSTER L B COM 350060109 1,313,121 0 0.00 28,718 11.13 18.0836
2025-05-14 2025-03-31 13F FOSTER L B COM 350060109 1,313,121 0 0.00 25,842 -26.84 17.3333
2025-02-14 2024-12-31 13F FOSTER L B COM 350060109 1,313,121 0 0.00 35,323 31.67 22.2815
2024-11-14 2024-09-30 13F FOSTER L B COM 350060109 1,313,121 0 0.00 26,827 -5.06 22.4904
2024-08-14 2024-06-30 13F FOSTER L B COM 350060109 1,313,121 0 0.00 28,258 -21.20 24.1082
2024-05-15 2024-03-31 13F FOSTER L B COM 350060109 1,313,121 0 0.00 35,861 24.20 30.8945
2024-02-14 2023-12-31 13F FOSTER L B COM 350060109 1,313,121 0 0.00 28,873 16.29 18.8080
2023-11-14 2023-09-30 13F FOSTER L B COM 350060109 1,313,121 0 0.00 24,829 32.43 17.6916
2023-08-14 2023-06-30 13F FOSTER L B COM 350060109 1,313,121 289,986 28.34 18,750 59.63 11.7091
2023-05-15 2023-03-31 13F FOSTER L B COM 350060109 1,023,135 0 0.00 11,746 18.60 7.2177
2023-02-10 2022-12-31 13F FOSTER L B COM 350060109 1,023,135 0 0.00 9,904 -0.83 5.3477
2022-11-14 2022-09-30 13F FOSTER L B COM 350060109 1,023,135 0 0.00 9,986 -24.16 5.6476
2022-08-12 2022-06-30 13F FOSTER L B COM 350060109 1,023,135 0 0.00 13,168 -16.27 6.9880
2022-05-13 2022-03-31 13F FOSTER L B COM 350060109 1,023,135 -100 -0.01 15,726 11.78 5.7097
2022-02-14 2021-12-31 13F FOSTER L B COM 350060109 1,023,235 299,533 41.39 14,069 25.50 4.3504
2021-11-12 2021-09-30 13F FOSTER L B COM 350060109 723,702 145,229 25.11 11,210 3.96 3.3397
2021-08-16 2021-06-30 13F FOSTER L B COM 350060109 578,473 109,720 23.41 10,783 28.51 2.8980
2021-05-14 2021-03-31 13F FOSTER L B COM 350060109 468,753 224,507 91.92 8,391 128.26 2.5851
2021-02-12 2020-12-31 13F FOSTER L B COM 350060109 244,246 13,600 5.90 3,676 18.77 1.3162
2020-11-13 2020-09-30 13F FOSTER L B COM 350060109 230,646 35,395 18.13 3,095 24.15 1.5698
2020-08-14 2020-06-30 13F FOSTER L B COM 350060109 195,251 71,217 57.42 2,493 62.62 1.3519
2020-05-15 2020-03-31 13F FOSTER L B COM 350060109 124,034 124,034 1,533 1.1921
2019-08-14 2019-06-30 13F FOSTER L B COM 350060109 0 -132,142 -100.00 0 -100.00
2019-05-15 2019-03-31 13F FOSTER L B COM 350060109 132,142 -69,522 -34.47 2,487 -22.43 1.7315
2019-02-08 2018-12-31 13F FOSTER L B COM 350060109 201,664 3,272 1.65 3,206 -21.36 1.9989
2018-11-09 2018-09-30 13F FOSTER L B COM 350060109 198,392 -5,400 -2.65 4,077 -12.83 2.1860
2018-08-10 2018-06-30 13F FOSTER L B COM 350060109 203,792 5,340 2.69 4,677 0.06 2.4300
2018-05-15 2018-03-31 13F FOSTER L B COM 350060109 198,452 22,220 12.61 4,674 -2.32 2.4344
2018-02-14 2017-12-31 13F FOSTER L B COM 350060109 176,232 3,900 2.26 4,785 22.04 2.3546
2017-11-14 2017-09-30 13F FOSTER L B COM 350060109 172,332 -42,952 -19.95 3,921 -15.09 2.2895
2017-08-14 2017-06-30 13F FOSTER L B COM 350060109 215,284 0 0.00 4,618 71.61 2.6091
2017-05-15 2017-03-31 13F FOSTER L B COM 350060109 215,284 50,616 30.74 2,691 20.19 1.5564
2017-02-14 2016-12-31 13F FOSTER L B COM 350060109 164,668 164,668 2,239 1.3425
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.