L.B. Foster Company
L.B. Foster Company (FSTR) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · FSTR · as of Sep 30, 2025
Ownership Breakdown
90
Institutional Holders
▼ 3 vs Q2
$213.99M
Total Inst. Value
▲ $36.67M vs Q2
10.46M
Shares Outstanding
freeFloat 91.18%
7.94M
13F Shares Held
▼ 166,778 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
FSTR largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BRANDES INVESTMENT PARTNERS, LP wholesale-metals service centers & of fices | 1.34M | 12.84% | 12.84% | $36.11B | Nov 14, 2025 | ▲ 161.0K |
22NW, LP wholesale-metals service centers & of fices | 1.31M | 12.58% | 12.58% | $35.39B | Nov 14, 2025 | — held |
GAMCO INVESTORS, INC. ET AL wholesale-metals service centers & of fices | 933.5K | 8.94% | 8.94% | $25.16B | Nov 12, 2025 | ▼ 16.8K |
DIMENSIONAL FUND ADVISORS LP wholesale-metals service centers & of fices | 694.4K | 6.65% | 6.65% | $18.71B | Nov 12, 2025 | ▼ 4.1K |
BLACKROCK, INC. wholesale-metals service centers & of fices | 654.0K | 6.27% | 6.27% | $17.63B | Nov 12, 2025 | ▼ 10.4K |
VANGUARD GROUP INC wholesale-metals service centers & of fices | 501.6K | 4.81% | 4.81% | $13.52B | Nov 7, 2025 | ▼ 2.1K |
RENAISSANCE TECHNOLOGIES LLC wholesale-metals service centers & of fices | 344.0K | 3.30% | 3.30% | $9.27B | Nov 13, 2025 | ▼ 1.3K |
GEODE CAPITAL MANAGEMENT, LLC wholesale-metals service centers & of fices | 235.5K | 2.26% | 2.26% | $6.35B | Nov 12, 2025 | ▼ 2.6K |
GABELLI FUNDS LLC wholesale-metals service centers & of fices | 144.4K | 1.38% | 1.38% | $3.89B | Nov 12, 2025 | ▼ 300 |
STATE STREET CORP wholesale-metals service centers & of fices | 142.3K | 1.36% | 1.36% | $3.83B | Nov 14, 2025 | ▲ 3.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
14
Increased
+225.7K shares4
New Positions
first time holders24
Decreased
−165.2K shares0
Sold Out
fully exitedNet shares change (top 50)
+60.6K
+225.7K / −165.2K
Net new holders
-6
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
FSTR insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
5
Buy transactions
1
Sell transactions
5.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Rolli Sara Fay SVP, Operational Admin | May 22, 2026 | Tax Withhold | 352 | $38.11 | $13.4K | 9.2K | Form 4 ↗ |
THALMAN WILLIAM M EVP & CFO | May 22, 2026 | Tax Withhold | 1,178 | $38.11 | $44.9K | 78.8K | Form 4 ↗ |
Friedman Brian Hunter SVP, Chief Growth Officer | May 22, 2026 | Tax Withhold | 416 | $38.11 | $15.9K | 31.1K | Form 4 ↗ |
Guinee Patrick J. EVP General Counsel & Sec. | May 22, 2026 | Tax Withhold | 1,077 | $38.11 | $41.0K | 87.3K | Form 4 ↗ |
LIPPARD GREGORY W SVP -Rail | May 22, 2026 | Tax Withhold | 905 | $38.11 | $34.5K | 75.0K | Form 4 ↗ |
Ness Robert SVP, Precast Concrete Products | May 22, 2026 | Tax Withhold | 683 | $38.11 | $26.0K | 32.4K | Form 4 ↗ |
KASEL JOHN F President & Chief Exec Officer | May 22, 2026 | Tax Withhold | 4,102 | $38.11 | $156.3K | 239.7K | Form 4 ↗ |
O'Neill Jamie F SVP, Human Resources | May 22, 2026 | Tax Withhold | 269 | $38.11 | $10.3K | 16.2K | Form 4 ↗ |
REILLY SEAN M Controller | May 22, 2026 | Tax Withhold | 425 | $38.11 | $16.2K | 29.1K | Form 4 ↗ |
OWEN DIANE B director | May 22, 2026 | Tax Withhold | 96 | $38.11 | $3.7K | 78.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
L.B. Foster Company (FSTR) is primarily owned by institutional investors, who hold approximately 75.9% of total shares outstanding. Company insiders own approximately 8.82%, while retail and public investors account for the remaining 15.26%.
The largest institutional shareholder of L.B. Foster Company is BRANDES INVESTMENT PARTNERS, LP, holding approximately 1.34 million shares — equal to 12.84% of outstanding shares — as of September 30, 2025.
A total of 90 institutional investors currently hold FSTR stock, with a combined institutional value of approximately $213,992,900 as of the most recent 13F filing period.
Frequently asked questions
FSTR ownershipL.B. Foster Company (FSTR) is primarily owned by institutional investors, who hold approximately 75.9% of shares. The largest shareholder is BRANDES INVESTMENT PARTNERS, LP with a 12.84% stake. Company insiders hold 8.82%. Data sourced from SEC Form 13F as of September 30, 2025.