L.B. Foster Company
US ˙ NasdaqGS ˙ US3500601097

SecurityFSTR / L.B. Foster Company
InstitutionCitigroup Inc
Latest Disclosed Ownership1,978 shares
Latest Disclosed Value $ 55,187
Citigroup Inc reports 63.15% decrease in ownership of FSTR / L.B. Foster Company

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 1,978 shares of L.B. Foster Company (US:FSTR) valued at $55,186 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 5,367 shares of L.B. Foster Company. This represents a change in shares of -63.15% during the quarter. The current value of the position is $83,096 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)
2026-05-11 2026-03-31 13F FOSTER L B COM 350060109 1,978 -3,389 -63.15 55 -61.81 0.0000
2026-02-13 2025-12-31 13F FOSTER L B COM 350060109 5,367 -54,644 -91.06 145 -91.09 0.0001
2025-11-10 2025-09-30 13F FOSTER L B COM 350060109 60,011 -1,760 -2.85 1,617 19.78 0.0007
2025-08-11 2025-06-30 13F FOSTER L B COM 350060109 61,771 -16,336 -20.91 1,351 -12.17 0.0007
2025-05-12 2025-03-31 13F FOSTER L B COM 350060109 78,107 -2,313 -2.88 1,537 -28.94 0.0008
2025-02-12 2024-12-31 13F FOSTER L B COM 350060109 80,420 3,510 4.56 2,163 37.68 0.0013
2024-11-12 2024-09-30 13F FOSTER L B COM 350060109 76,910 33,987 79.18 1,571 70.21 0.0009
2024-08-12 2024-06-30 13F FOSTER L B COM 350060109 42,923 -39,742 -48.08 924 -59.11 0.0006
2024-05-10 2024-03-31 13F FOSTER L B COM 350060109 82,665 22,406 37.18 2,258 70.34 0.0015
2024-02-09 2023-12-31 13F FOSTER L B COM 350060109 60,259 6,022 11.10 1,325 29.27 0.0009
2023-12-06 2023-09-30 13F/A-1 FOSTER L B COM 350060109 54,237 41,630 330.21 1,026 469.44 0.0008
2023-11-09 2023-09-30 13F FOSTER L B COM 350060109 54,237 41,630 1,026 0.0003
2023-08-10 2023-06-30 13F FOSTER L B COM 350060109 12,607 6,987 124.32 180 181.25 0.0001
2023-05-11 2023-03-31 13F FOSTER L B COM 350060109 5,620 524 10.28 65 30.61 0.0000
2023-02-09 2022-12-31 13F FOSTER L B COM 350060109 5,096 3,363 194.06 49 188.24 0.0000
2022-11-10 2022-09-30 13F FOSTER L B COM 350060109 1,733 1,733 17 0.0000
2021-08-10 2021-06-30 13F FOSTER L B COM 350060109 0 -668 -100.00 0 -100.00
2021-05-13 2021-03-31 13F FOSTER L B COM 350060109 668 -1,266 -65.46 12 -58.62 0.0000
2021-02-11 2020-12-31 13F FOSTER L B COM 350060109 1,934 1,448 297.94 29 314.29 0.0000
2020-11-12 2020-09-30 13F FOSTER L B COM 350060109 486 -862 -63.95 7 -58.82 0.0000
2020-08-12 2020-06-30 13F FOSTER L B COM 350060109 1,348 -1,906 -58.57 17 -57.50 0.0000
2020-05-12 2020-03-31 13F FOSTER L B COM 350060109 3,254 1,245 61.97 40 2.56 0.0000
2020-02-12 2019-12-31 13F FOSTER L B COM 350060109 2,009 635 46.22 39 30.00 0.0000
2019-11-08 2019-09-30 13F FOSTER L B COM 350060109 1,374 -1,198 -46.58 30 -57.14 0.0000
2019-08-12 2019-06-30 13F FOSTER L B COM 350060109 2,572 94 3.79 70 48.94 0.0001
2019-05-13 2019-03-31 13F FOSTER L B COM 350060109 2,478 -26 -1.04 47 17.50 0.0000
2019-02-12 2018-12-31 13F FOSTER L B COM 350060109 2,504 -233 -8.51 40 -28.57 0.0000
2018-11-13 2018-09-30 13F FOSTER L B COM 350060109 2,737 -84 -2.98 56 -13.85 0.0000
2018-08-10 2018-06-30 13F FOSTER L B COM 350060109 2,821 -2,930 -50.95 65 -51.85 0.0001
2018-05-11 2018-03-31 13F FOSTER L B COM 350060109 5,751 1,653 40.34 135 21.62 0.0001
2018-02-12 2017-12-31 13F FOSTER L B COM 350060109 4,098 -1,004 -19.68 111 -4.31 0.0001
2017-11-13 2017-09-30 13F FOSTER L B COM 350060109 5,102 5,031 7,085.92 116 5,700.00 0.0001
2017-08-11 2017-06-30 13F FOSTER L B COM 350060109 71 -452 -86.42 2 -71.43 0.0000
2017-05-12 2017-03-31 13F FOSTER L B COM 350060109 523 0 0.00 7 0.00 0.0000
2017-02-10 2016-12-31 13F FOSTER L B COM 350060109 523 0 0.00 7 16.67 0.0000
2016-11-10 2016-09-30 13F FOSTER L B COM 350060109 523 -5,750 -91.66 6 -91.30 0.0000
2016-08-12 2016-06-30 13F FOSTER L B COM 350060109 6,273 -6,482 -50.82 69 -70.26 0.0001
2016-05-13 2016-03-31 13F FOSTER L B COM 350060109 12,755 4,072 46.90 232 96.61 0.0003
2016-02-12 2015-12-31 13F FOSTER L B COM 350060109 8,683 7,972 1,121.24 118 1,211.11 0.0001
2015-11-13 2015-09-30 13F FOSTER L B COM 350060109 711 118 19.90 9 -55.00 0.0000
2015-08-13 2015-06-30 13F FOSTER L B COM 350060109 593 -2,681 -81.89 20 -87.18 0.0000
2015-05-14 2015-03-31 13F FOSTER L B COM 350060109 3,274 -2,852 -46.56 156 -47.65 0.0002
2015-02-17 2014-12-31 13F FOSTER L B COM 350060109 6,126 5,378 718.98 298 751.43 0.0003
2014-11-14 2014-09-30 13F FOSTER L B COM 350060109 748 -1,161 -60.82 35 -66.35 0.0000
2014-08-14 2014-06-30 13F FOSTER L B COM 350060109 1,909 -2,186 -53.38 104 -45.83 0.0001
2014-05-15 2014-03-31 13F FOSTER L B COM 350060109 4,095 -260 -5.97 192 -6.80 0.0002
2014-02-14 2013-12-31 13F FOSTER L B COM 350060109 4,355 1,827 72.27 206 79.13 0.0002
2013-11-14 2013-09-30 13F FOSTER L B COM 350060109 2,528 -1,898 -42.88 115 -39.79 0.0001
2013-08-14 2013-06-30 13F FOSTER L B COM 350060109 4,426 4,426 191 0.0002
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.