FOSTER L B CO·4

Jun 3, 3:32 PM ET

THALMAN WILLIAM M 4

4 · FOSTER L B CO · Filed Jun 3, 2026

Research Summary

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Foster L.B. Co (FSTR) EVP William Thalman Receives RSU Award

What Happened
William M. Thalman, EVP & COO of Foster L.B. Co (FSTR), was granted 1,128 restricted stock units (RSUs) on 2026-06-01. The Form 4 reports the acquisition at $0.00 per share (no cash outlay reported at grant). These RSUs generally vest ratably over three years on the first, second and third anniversaries of the grant date (see footnote F1).

Key Details

  • Transaction type/code: Award / Grant (A).
  • Transaction date: 2026-06-01; Form filed: 2026-06-03 (appears timely under Form 4 rules).
  • Shares/amount: 1,128 RSUs granted; price shown as $0.00; immediate reported value $0.
  • Shares owned after transaction: Not specified in the provided filing.
  • Notable footnotes:
    • F1: The 1,128 RSUs settle in stock upon vesting and vest ratably over three years.
    • F2: The filing also references 1,358 Performance RSUs earned under the 2025–2027 LTIP (granted 5/22/2025) that will settle after the 12/31/2027 performance period upon committee certification.
    • F3: It also references 6,036 Performance RSUs earned under the 2024–2026 LTIP (granted 5/23/2024) that will settle after the 12/31/2026 performance period upon committee certification.

Context
RSU grants are a common form of executive compensation that align management incentives with shareholder value; they are not purchases (so they don’t reflect an immediate personal cash investment). Performance RSUs (noted in F2 and F3) only convert to shares if performance targets are met and are settled upon certification at the end of the stated performance periods. This filing documents a compensation grant rather than an insider buy or sell.

Insider Transaction Report

Form 4
Period: 2026-06-01
Transactions
  • Award

    Common Stock

    [F1][F2][F3]
    2026-06-01+1,12879,882 total
Footnotes (3)
  • [F1]Award of 1,128 restricted stock units (RSUs) which are settled in stock upon vesting and generally will vest ratably over a three-year period on the first, second, and third anniversary of the date of the grant.
  • [F2]Includes 1,358 Performance Restricted Stock Units earned under the 2025-2027 Long Term Incentive Plan granted on 5/22/2025; those 1,358 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2027, upon certification by the Compensation Committee.
  • [F3]Includes 6,036 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 6,036 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification of the Compensation Committee.
Signature
/s/ William M. Thalman by Maribel Castro, attorney-in-fact|2026-06-03

Documents

1 file
  • 4
    wk-form4_1780515136.xmlPrimary

    FORM 4