Patrick J. Guinee - 19 Feb 2026 Form 4 Insider Report for FOSTER L B CO (FSTR)

Signature
/s/ Patrick J. Guinee by Judith Balog, attorney-in-fact
Issuer symbol
FSTR
Transactions as of
19 Feb 2026
Net transactions value
-$314,082
Form type
4
Filing time
23 Feb 2026, 16:02:29 UTC
Previous filing
09 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Guinee Patrick J. EVP General Counsel & Sec. L.B. FOSTER COMPANY, 415 HOLIDAY DRIVE, SUITE 100, PITTSBURGH /s/ Patrick J. Guinee by Judith Balog, attorney-in-fact 23 Feb 2026 0001600919
This filing has been restated, see here for the amended filing

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FSTR Common Stock Award $0 +7,170 +8.8% $0.000000 88,326 19 Feb 2026 Direct F1, F2, F3
transaction FSTR Common Stock Award $0 +3,359 +3.8% $0.000000 91,685 19 Feb 2026 Direct F2, F4, F5
transaction FSTR Common Stock Award $0 +1,239 +1.4% $0.000000 92,924 19 Feb 2026 Direct F2, F5, F6, F7
transaction FSTR Common Stock Award $0 +5,613 +6% $0.000000 98,537 19 Feb 2026 Direct F2, F5, F7, F8
transaction FSTR Common Stock Tax liability $314,082 -10,091 -10% $31.12 88,446 19 Feb 2026 Direct F5, F7, F9
* 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 23,044 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 23,044 Performance Restricted Stock Units settled at the end of the 2023-2025 performance period upon certification by the Compensation Committee on 2/19/2026.
F3 Includes 2,194 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 2,194 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification by the Compensation Committee.
F4 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.
F5 Includes 5,553 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 5,553 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification of the Compensation Committee.
F6 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.
F7 Includes 1,239 Performance Restricted Stock Units earned under the 2025-2027 Long Term Incentive Plan granted on 5/22/2025; those 1,239 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2027, upon certification by the Compensation Committee.
F8 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.
F9 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.