L.B. Foster controller reports 8,795-share stake

FOSTER L B CO Controller and Principal Accounting Officer Timothy Joseph Curran filed an initial ownership report showing holdings of 8,795 shares of common stock.

Rhea-AI Filing Summary

FOSTER L B CO Controller and Principal Accounting Officer Timothy Joseph Curran filed an initial ownership report showing holdings of 8,795 shares of common stock. This amount includes performance restricted stock units from the 2024–2026 and 2025–2027 Long Term Incentive Plans, time-based restricted stock units, and time-vested restricted stock awards that will vest over multi-year periods subject to Compensation Committee certification.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Curran Timothy Joseph

Role Controller and PAO

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 8,795 shares (Direct)

Footnotes (4)

1. F1. Includes 255 Performance Restricted Stock Units earned under the 2025-2027 Long Term Incentive Plan granted on 5/22/2025; those 255 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2027, upon certification by the Compensation Committee.
2. F2. Includes 966 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 966 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification of the Compensation Committee.
3. F3. Includes an award of 1,207 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 anniversaries of the date of the grant.
4. F4. Includes awards of 1,339 shares of time-vested restricted stock which will vest in 33 1/3 increments on each of the first, second, and third anniversary of the dates of the grants.

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Accepted by SEC EDGAR 06/03/2026 - 03:16 PM Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Curran Timothy Joseph

(Last) (First) (Middle)

C/O L.B. FOSTER COMPANY

415 HOLIDAY DRIVE, SUITE 100

(Street)

PITTSBURGH PENNSYLVANIA 15220

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/01/2026

3. Issuer Name and Ticker or Trading Symbol
FOSTER L B CO [ FSTR ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Controller and PAO

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	8,795(1)(2)(3)(4)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 255 Performance Restricted Stock Units earned under the 2025-2027 Long Term Incentive Plan granted on 5/22/2025; those 255 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2027, upon certification by the Compensation Committee.

2. Includes 966 Performance Restricted Stock Units earned under the 2024-2026 Long Term Incentive Plan granted on 5/23/2024; those 966 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2026, upon certification of the Compensation Committee.

3. Includes an award of 1,207 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 anniversaries of the date of the grant.

4. Includes awards of 1,339 shares of time-vested restricted stock which will vest in 33 1/3 increments on each of the first, second, and third anniversary of the dates of the grants.

Remarks:

	/s/ Timothy J. Curran by Maribel Castro, attorney-in-fact	06/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)