Robert Ness - 19 Feb 2026 Form 4/A - Amendment Insider Report for FOSTER L B CO (FSTR)

Signature
Robert Ness by Judith Balog, attorney-in-fact
Issuer symbol
FSTR
Transactions as of
19 Feb 2026
Net transactions value
$0
Form type
4/A - Amendment
Filing time
09 Mar 2026, 16:04:26 UTC
Date Of Original Report
23 Feb 2026
Previous filing
09 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ness Robert SVP, Precast Concrete Products L.B. FOSTER COMPANY, 415 HOLIDAY DRIVE, SUITE 100, PITTSBURGH Robert Ness by Judith Balog, attorney-in-fact 09 Mar 2026 0001888828

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FSTR Common Stock Award +3,585 +13% $0.000000* 32,201 19 Feb 2026 Direct F1, F2, F3, F4
transaction FSTR Common Stock Award +1,947 +6% $0.000000* 34,148 19 Feb 2026 Direct F3, F5, F6
transaction FSTR Common Stock Award +764 +2.2% $0.000000* 34,912 19 Feb 2026 Direct F3, F6, F7, F8
transaction FSTR Common Stock Award +3,422 +9.8% $0.000000* 38,334 19 Feb 2026 Direct F3, F6, F8, F9
transaction FSTR Common Stock Tax liability -5,281 -14% $31.12* 33,053 19 Feb 2026 Direct F6, F8, F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the number of shares of common stock resulting from Performance Share Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023 upon certification of performance results by the Compensation Committee at 47.2% for the annual period ended December 31, 2025.
F2 Includes 1,272 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 1,272 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification of the Compensation Committee.
F3 Includes 11,522 shares of common stock resulting from the settlement of Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 11,522 Performance Restricted Stock Units settled at the end of the 2023-2025 performance period upon certification by the Compensation Committee on 2/19/2026.
F4 This amended Form 4 was filed to correct the number of shares beneficially owned to reflect the amendment made to the Form 4 originally filed on 2/18/2026. The amendment to the Form 4 was filed on 3/09/2026 to correct the number of shares withheld to pay taxes applicable to the vesting of restricted stock on 2/13/2026 and 2/14/2026.
F5 Represents the number of Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024 upon certification of performance results by the Compensation Committee at 39.5% for the annual period ended December 31, 2025. The earned Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification by the Compensation Committee.
F6 Includes 3,219 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 3,219 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification of the Compensation Committee.
F7 Represents the number of Performance Restricted Stock Units earned under the 2025-2027 Long Term Incentive Plan granted on 5/22/2025 upon certification of performance results by the Compensation Committee at 11.2% for the annual period ended December 31, 2025. The earned Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2027, upon certification by the Compensation Committee.
F8 Includes 764 Performance Restricted Stock Units earned under the 2025-2027 Long Term Incentive Plan granted on 5/22/2025; those 764 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2027, upon certification by the Compensation Committee.
F9 Award of 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 grant.
F10 Shares withheld to pay taxes upon the vesting and settlement of all earned performance shares related to the 2023-2025 LTIP awarded on 2/14/2023.