How many insider trades does FilingIQ track for FSTR?

FilingIQ tracks 1,008 Form 4 insider transactions for FSTR (FOSTER L B CO), covering filings from Dec 2, 2014 onwards. 96 of those were filed in the last 90 days.

Are FSTR insiders net buyers or net sellers?

Across the full Form 4 history for FSTR, 110 transactions (11%) were open-market purchases and 39 (4%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does FSTR insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is FSTR in?

FOSTER L B CO (FSTR) is classified in the Industrials sector, specifically Railroads, with a current market capitalisation of $319.52M.

FSTR insider trading

NasdaqGS Industrials

FOSTER L B CO — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

1,008

Last 90 days

Buys / sells

11% / 4%

Market cap

$319.52M

About FOSTER L B CO

L.B. Foster Company provides engineered and manufactured products and services for building and supporting infrastructure in the United States, Canada, the United Kingdom, and internationally. It operates in two segments, Rail, Technologies, and Services; and Infrastructure Solutions. The Rail, Technologies, and Services segment offers new rail to passenger and short line freight railroads, industrial companies, and rail contractors, as well as used rails; rail accessories, such as track spikes, bolts, angle bars, tie plates, and other products; insulated rail joints and related accessories; fixation fasteners, coverboards, and special accessories; and trackwork products. This segment also provides engineered concrete railroad ties, friction management products and application systems, railroad condition monitoring systems and equipment, including wheel impact load detection systems, wayside data collection and management systems, and rockfall, flood, earthworks, and bridge strike monitoring; and aftermarket services. The Infrastructure Solutions segment manufactures precast concrete products for use as restrooms, concession stands, and protective storage buildings under the CXT brand for national, state, and municipal parks; and manufactures sounds walls, bridge beams, box culverts, septic tanks, and other custom pre-stressed and precast concrete products. This segment also provides steel bridge products; corrosion protection solutions; cuts, threads, and paints pipes; threading services for oil and gas production; and protective pipeline coating services. L.B. Foster Company was founded in 1902 and is headquartered in Pittsburgh, Pennsylvania.

Company website: www.lbfoster.com

FSTR insider activity at a glance

FilingIQ has scored 1,008 insider transactions for FSTR since Dec 2, 2014. The most recent filing in our index is dated Apr 1, 2026.

Across the full history, 110 open-market purchases and 39 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on FSTR insider trades is 50.0/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live FSTR trades on FilingIQ Raw filings on SEC EDGAR

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Frequently asked

How many insider trades does FilingIQ track for FSTR?: FilingIQ tracks 1,008 Form 4 insider transactions for FSTR (FOSTER L B CO), covering filings from Dec 2, 2014 onwards. 96 of those were filed in the last 90 days.
Are FSTR insiders net buyers or net sellers?: Across the full Form 4 history for FSTR, 110 transactions (11%) were open-market purchases and 39 (4%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does FSTR insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is FSTR in?: FOSTER L B CO (FSTR) is classified in the Industrials sector, specifically Railroads, with a current market capitalisation of $319.52M.

Methodology & sources

Every FSTR insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.