L.B. Foster Company
US ˙ NasdaqGS ˙ US3500601097

SecurityFSTR / L.B. Foster Company
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership445,432 shares
Ownership 4.11%
Renaissance Technologies Llc ownership in FSTR / L.B. Foster Company

2022-02-10 - Renaissance Technologies Llc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 445,432 shares of L.B. Foster Company (US:FSTR). This represents 4.11 percent ownership of the company. In their previous filing dated 2021-02-11 , Renaissance Technologies Llc had reported owning 614,992 shares, indicating a decrease of -27.57 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2022-02-10 2022-02-10 13G/A 614,992 445,432 -27.57 4.11 -28.15
2021-02-11 2021-02-11 13G/A 719,199 614,992 -14.49 5.72 -15.88
2020-02-12 2020-02-12 13G 719,199 6.80

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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.

Upgrade to unlock premium data and export to Excel .

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 FOSTER L B COM 350060109 316,382 -14,200 -4.30 8,827 -0.92 0.0138
2026-02-12 2025-12-31 13F FOSTER L B COM 350060109 330,582 -13,400 -3.90 8,909 -3.89 0.0138
2025-11-13 2025-09-30 13F FOSTER L B COM 350060109 343,982 -1,300 -0.38 9,270 22.77 0.0122
2025-08-13 2025-06-30 13F FOSTER L B COM 350060109 345,282 -5,600 -1.60 7,551 9.36 0.0100
2025-05-14 2025-03-31 13F FOSTER L B COM 350060109 350,882 -1,200 -0.34 6,905 -27.09 0.0105
2025-02-13 2024-12-31 13F FOSTER L B COM 350060109 352,082 -38,200 -9.79 9,471 18.79 0.0140
2024-11-13 2024-09-30 13F FOSTER L B COM 350060109 390,282 -19,300 -4.71 7,973 -9.54 0.0120
2024-08-09 2024-06-30 13F FOSTER L B COM 350060109 409,582 51,700 14.45 8,814 97,833.33 0.0149
2024-05-13 2024-03-31 13F FOSTER L B COM 350060109 357,882 -49,400 -12.13 10 12.50 0.0154
2024-02-13 2023-12-31 13F FOSTER L B COM 350060109 407,282 21,100 5.46 9 14.29 0.0139
2023-11-14 2023-09-30 13F FOSTER L B COM 350060109 386,182 -700 -0.18 7 40.00 0.0125
2023-08-11 2023-06-30 13F FOSTER L B COM 350060109 386,882 19,815 5.40 6 25.00 0.0080
2023-05-12 2023-03-31 13F FOSTER L B COM 350060109 367,067 -4,316 -1.16 4 33.33 0.0056
2023-02-13 2022-12-31 13F FOSTER L B COM 350060109 371,383 -15,849 -4.09 4 -99.92 0.0049
2022-11-14 2022-09-30 13F FOSTER L B COM 350060109 387,232 -29,300 -7.03 3,779 -29.51 0.0053
2022-08-12 2022-06-30 13F FOSTER L B COM 350060109 416,532 -7,000 -1.65 5,361 -17.65 0.0063
2022-05-13 2022-03-31 13F FOSTER L B COM 350060109 423,532 -21,900 -4.92 6,510 6.29 0.0076
2022-02-11 2021-12-31 13F FOSTER L B COM 350060109 445,432 -17,100 -3.70 6,125 -14.52 0.0076
2021-11-12 2021-09-30 13F FOSTER L B COM 350060109 462,532 -13,300 -2.80 7,165 -19.22 0.0093
2021-08-13 2021-06-30 13F FOSTER L B COM 350060109 475,832 -173,200 -26.69 8,870 -23.65 0.0111
2021-05-13 2021-03-31 13F FOSTER L B COM 350060109 649,032 34,040 5.54 11,618 25.52 0.0145
2021-02-10 2020-12-31 13F FOSTER L B COM 350060109 614,992 -20,900 -3.29 9,256 8.46 0.0101
2020-11-13 2020-09-30 13F FOSTER L B COM 350060109 635,892 -30,200 -4.53 8,534 0.33 0.0085
2020-08-13 2020-06-30 13F FOSTER L B COM 350060109 666,092 -42,300 -5.97 8,506 -2.86 0.0073
2020-05-14 2020-03-31 13F FOSTER L B COM 350060109 708,392 -10,807 -1.50 8,756 -37.18 0.0085
2020-02-13 2019-12-31 13F FOSTER L B COM 350060109 719,199 7,099 1.00 13,938 -9.68 0.0107
2019-11-13 2019-09-30 13F FOSTER L B COM 350060109 712,100 -1,400 -0.20 15,431 -20.90 0.0131
2019-08-12 2019-06-30 13F FOSTER L B COM 350060109 713,500 137,100 23.79 19,507 79.82 0.0172
2019-05-14 2019-03-31 13F FOSTER L B COM 350060109 576,400 66,545 13.05 10,848 33.81 0.0099
2019-02-12 2018-12-31 13F FOSTER L B COM 350060109 509,855 3,455 0.68 8,107 -22.10 0.0089
2018-11-13 2018-09-30 13F FOSTER L B COM 350060109 506,400 23,100 4.78 10,407 -6.18 0.0107
2018-08-13 2018-06-30 13F/A-1 FOSTER L B COM 350060109 483,300 12,674 2.69 11,092 0.08 0.0121
2018-08-13 2018-06-30 13F FOSTER L B COM 350060109 470,626 11,083
2018-05-14 2018-03-31 13F FOSTER L B COM 350060109 470,626 44,526 10.45 11,083 -4.20 0.0121
2018-02-13 2017-12-31 13F FOSTER L B COM 350060109 426,100 64,800 17.94 11,569 40.74 0.0128
2017-11-13 2017-09-30 13F FOSTER L B COM 350060109 361,300 173,200 92.08 8,220 103.72 0.0097
2017-08-11 2017-06-30 13F FOSTER L B COM 350060109 188,100 38,900 26.07 4,035 116.35 0.0051
2017-05-12 2017-03-31 13F FOSTER L B COM 350060109 149,200 3,700 2.54 1,865 -5.76 0.0026
2017-02-13 2016-12-31 13F FOSTER L B COM 350060109 145,500 19,900 15.84 1,979 31.23 0.0031
2016-11-14 2016-09-30 13F FOSTER L B COM 350060109 125,600 -3,000 -2.33 1,508 7.71 0.0027
2016-08-12 2016-06-30 13F FOSTER L B COM 350060109 128,600 -17,800 -12.16 1,400 -47.35 0.0027
2016-05-13 2016-03-31 13F FOSTER L B COM 350060109 146,400 1,300 0.90 2,659 34.16 0.0051
2016-02-11 2015-12-31 13F FOSTER L B COM 350060109 145,100 -38,781 -21.09 1,982 -12.22 0.0043
2015-11-12 2015-09-30 13F FOSTER L B COM 350060109 183,881 121,908 196.71 2,258 5.27 0.0054
2015-08-14 2015-06-30 13F FOSTER L B COM 350060109 61,973 32,373 109.37 2,145 52.67 0.0049
2015-05-13 2015-03-31 13F FOSTER L B COM 350060109 29,600 3,800 14.73 1,405 12.13 0.0030
2015-02-13 2014-12-31 13F FOSTER L B COM 350060109 25,800 5,508 27.14 1,253 31.76 0.0030
2014-05-14 2014-03-31 13F FOSTER L B COM 350060109 20,292 -6,908 -25.40 951 -26.05 0.0023
2014-02-14 2013-12-31 13F FOSTER L B COM 350060109 27,200 -3,500 -11.40 1,286 -8.40 0.0031
2013-11-13 2013-09-30 13F FOSTER L B COM 350060109 30,700 -7,400 -19.42 1,404 -14.65 0.0034
2013-08-12 2013-06-30 13F FOSTER L B COM 350060109 38,100 38,100 1,645 0.0043
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.