FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
RACKOFF WILLIAM H

(Last) (First) (Middle)
C/O L.B. FOSTER COMPANY
415 HOLIDAY DRIVE

(Street)
PITTSBURGH PA 15220

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
FOSTER L B CO [ FSTR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
05/28/2020
4. If Amendment, Date of Original Filed (Month/Day/Year)
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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/28/2020   A   6,029 (1) A $ 12.44 80,574 (2) D  
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. 2020 Director Equity Award.
2. Includes 7,206 shares of deferred stock units and 73,368 shares of common stock.
/s/ William H. Rackoff by Heidi Loeffert, attorney-in-fact 05/29/2020
** 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 4 (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).
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LIMITED POWER OF ATTORNEY
The undersigned, William H. Rackoff, does hereby nominate, constitute and appoint as his true and lawful attorneys-in-fact and agents with authority limited to and as specifically set forth herein, Patrick Guinee, Alex DelVecchio, and Heidi Loeffert (each hereinafter referred to as an "Attorney-in-Fact").
Each Attorney-in-Fact hereunder shall have the authority to: act, sign, execute and deliver for and on behalf of and in the place and stead of the undersigned, in the undersigned's capacity as a director and/or officer of L. B. Foster Company, a Pennsylvania corporation (the "Company"), the Forms 3, 4 and 5 documents pursuant to and in accordance with Section 16 of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder (the "Exchange Act"); to do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5 and file such form with the U.S. Securities and Exchange Commission and any stock exchange or similar authority; and to take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such Attorney-in-Fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents, executed by such Attorney-in-Fact on behalf of the undersigned pursuant to this Limited Power of Attorney shall be in such form and shall contain such terms and conditions as such Attorney-in-Fact may approve in such Attorney-in-Fact's discretion.
The undersigned hereby grants to each such Attorney-in-Fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such Attorney-in-Fact shall lawfully do or cause to be done by virtue of the rights and powers herein granted. The undersigned acknowledges that the foregoing Attorneys-in-Fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Exchange Act.
This Limited Power of Attorney shall commence on the date of execution and shall remain in full force and effect until the undersigned is no longer required to file Form 3, 4, or 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the Attorneys-in-Fact.
IN WITNESS WHEREOF, I have caused this Limited Power of Attorney to be executed on October 24, 2019.
/s/William H. Rackoff
William H. Rackoff