FSTR · Insider trading · 13F holders · Congress trades
Foster L B Co (FSTR)
Who is buying and selling FSTR: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 6
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 1
FSTR at a glance
- No open-market insider purchases or sales of FSTR were filed in the last 90 days.
- 6 13F filers hold FSTR among their 50 largest positions, worth $9.3M combined. The biggest bets by portfolio weight are Teton Advisors, LLC (2.2%), Minerva Advisors LLC (1.9%) and Wavvest Wealth LLC (0.8%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
- Members of Congress have disclosed 1 FSTR trade since 2015, 0 purchases and 1 sale in the past year; the latest was Thomas MacArthur (R-NJ), selling $1K–15K on Nov 10, 2015.
- FSTR last closed at $36.39 on Oct 29, 2026.
FSTR insider trading
No open-market insider purchases or sales of FSTR were filed in the last 90 days.
Who owns FSTR? Hedge funds and superinvestors
6 13F filers hold FSTR among their 50 largest positions, worth $9.3M combined. The biggest bets by portfolio weight are Teton Advisors, LLC (2.2%), Minerva Advisors LLC (1.9%) and Wavvest Wealth LLC (0.8%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Teton Advisors, LLCMutual fund manager | 2.2% | $3.8M | 84,040 | -14.8% shares | Q2 2026 |
| Minerva Advisors LLCHedge fund | 1.9% | $3.1M | 67,922 | -19.1% shares | Q2 2026 |
| Wavvest Wealth LLCWealth manager | 0.8% | $1.1M | 29,239 | — | Q3 2026 |
| S Squared Technology, LLCHedge fund | 0.3% | $818K | 18,101 | New | Q2 2026 |
| Orchard Capital Management, LLCInstitutional asset manager | 0.4% | $333K | 7,379 | +0.0% shares | Q2 2026 |
| Veradace Capital Management LLCHedge fund | 0.2% | $271K | 6,000 | New | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 5). Screen FSTR in the grand portfolio →
FSTR stock trades by members of Congress
Members of Congress have disclosed 1 FSTR trade since 2015, 0 purchases and 1 sale in the past year; the latest was Thomas MacArthur (R-NJ), selling $1K–15K on Nov 10, 2015.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Dec 6, 2015 | Thomas MacArthurR-NJ · House | Sale | $1K–15K | Nov 10, 2015 | +218.9% |
FSTR questions and answers
Are insiders buying FSTR stock?
No open-market insider purchases or sales of FSTR were filed in the last 90 days.
Which hedge funds own FSTR?
6 13F filers hold FSTR among their 50 largest positions, worth $9.3M combined. The biggest bets by portfolio weight are Teton Advisors, LLC (2.2%), Minerva Advisors LLC (1.9%) and Wavvest Wealth LLC (0.8%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
Has Congress traded FSTR?
Members of Congress have disclosed 1 FSTR trade since 2015, 0 purchases and 1 sale in the past year; the latest was Thomas MacArthur (R-NJ), selling $1K–15K on Nov 10, 2015.
Who is the largest holder of FSTR?
Among 13F filers, Teton Advisors, LLC reports the largest FSTR position, $3.8M (84,040 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Teton Advisors, LLC's: 2.2% of its portfolio.
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