STOCK TITAN

22NW Fund trims FOSTER L B CO (FSTR) stake with 11,717-share sale

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

FOSTER L B CO major holder 22NW Fund, LP reported open-market sales of Common Stock associated with Aron English and related entities. The fund sold 8,968 shares at a weighted average price of about $28.0208 on March 26, 862 shares at $28.0200 on March 27, and 1,887 shares at a weighted average price of about $28.0111 on March 30, totaling 11,717 shares.

After these transactions, 22NW Fund indirectly holds 1,067,186 shares, while 905 shares are reported as directly owned. The reporting persons may be deemed part of a Section 13(d) group owning more than 10% and disclaim beneficial ownership beyond their pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider English Aron R., 22NW, LP, 22NW Fund, LP, 22NW Fund GP, LLC, 22NW GP, Inc.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 11,717 shs ($328K)
Type Security Shares Price Value
Sale Common Stock 1,887 $28.0111 $53K
Sale Common Stock 862 $28.02 $24K
Sale Common Stock 8,968 $28.0208 $251K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 1,067,186 shares (Indirect, By: 22NW Fund, LP); Common Stock — 905 shares (Direct)
Footnotes (1)
  1. This Form 4 is filed jointly by 22NW Fund, LP ("22NW Fund"), 22NW, LP ("22NW"), 22NW Fund GP, LLC ("22NW GP"), 22NW GP, Inc. ("22NW Inc.") and Aron English (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein. Represents a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.0000 to $28.1200, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction. Securities owned directly by 22NW Fund. As the investment manager to 22NW Fund, 22NW may be deemed to beneficially own the securities owned directly by 22NW Fund. As the general partner of 22NW Fund, 22NW GP may be deemed to beneficially own the securities owned directly by 22NW Fund. As the general partner of 22NW, 22NW Inc. may be deemed to beneficially own the securities owned directly by 22NW Fund. Mr. English, as the Portfolio Manager of 22NW, Manager of 22NW GP and President and sole shareholder of 22NW Inc., may be deemed to beneficially own the securities owned directly by 22NW Fund. Represents a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.0000 to $28.1000, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.
Shares sold March 26 8,968 shares Common Stock open-market sale at ~$28.0208
Shares sold March 27 862 shares Common Stock open-market sale at $28.0200
Shares sold March 30 1,887 shares Common Stock open-market sale at ~$28.0111
Total shares sold 11,717 shares Net-sell across three transactions
Indirect holdings after trades 1,067,186 shares Common Stock indirectly owned following sales
Direct holdings after trades 905 shares Common Stock directly owned as of March 26 entry
Sale price range (footnote F2) $28.0000–$28.1200 Multiple transactions underlying weighted average price
Sale price range (footnote F4) $28.0000–$28.1000 Multiple transactions underlying weighted average price
Section 13(d) group regulatory
"may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10%"
beneficial ownership regulatory
"Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein"
weighted average price financial
"Represents a weighted average price. These shares were sold in multiple transactions at prices ranging"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
investment manager financial
"As the investment manager to 22NW Fund, 22NW may be deemed to beneficially own the securities"
general partner financial
"As the general partner of 22NW Fund, 22NW GP may be deemed to beneficially own the securities"
A general partner is the person or firm that runs an investment partnership and legally represents it — they make the day-to-day decisions, choose which assets to buy or sell, and are responsible for the partnership’s obligations. Investors care because the general partner’s judgment, risk-taking and fee and profit-sharing arrangements determine both the potential returns and the level of exposure to losses; think of the GP as the ship’s captain whose skill and honesty shape the voyage’s outcome.
SEC Form 4
FORM 4UNITED 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
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
English Aron R.

(Last)(First)(Middle)
590 1ST AVE. S
UNIT C1

(Street)
SEATTLE WASHINGTON 98104

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
FOSTER L B CO [ FSTR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
03/26/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
XForm filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock(1)03/26/2026S8,968D$28.0208(2)1,069,935IBy: 22NW Fund, LP(3)
Common Stock(1)03/27/2026S862D$28.021,069,073IBy: 22NW Fund, LP(3)
Common Stock(1)03/30/2026S1,887D$28.0111(4)1,067,186IBy: 22NW Fund, LP(3)
Common Stock(1)905D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
1. Name and Address of Reporting Person*
English Aron R.

(Last)(First)(Middle)
590 1ST AVE. S
UNIT C1

(Street)
SEATTLE WASHINGTON 98104

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
22NW, LP

(Last)(First)(Middle)
590 1ST AVE. S
UNIT C1

(Street)
SEATTLE WASHINGTON 98104

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
22NW Fund, LP

(Last)(First)(Middle)
590 1ST AVE. S
UNIT C1

(Street)
SEATTLE WASHINGTON 98104

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
22NW Fund GP, LLC

(Last)(First)(Middle)
590 1ST AVE. S
UNIT C1

(Street)
SEATTLE WASHINGTON 98104

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
22NW GP, Inc.

(Last)(First)(Middle)
590 1ST AVE. S
UNIT C1

(Street)
SEATTLE WASHINGTON 98104

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
Explanation of Responses:
1. This Form 4 is filed jointly by 22NW Fund, LP ("22NW Fund"), 22NW, LP ("22NW"), 22NW Fund GP, LLC ("22NW GP"), 22NW GP, Inc. ("22NW Inc.") and Aron English (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.
2. Represents a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.0000 to $28.1200, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.
3. Securities owned directly by 22NW Fund. As the investment manager to 22NW Fund, 22NW may be deemed to beneficially own the securities owned directly by 22NW Fund. As the general partner of 22NW Fund, 22NW GP may be deemed to beneficially own the securities owned directly by 22NW Fund. As the general partner of 22NW, 22NW Inc. may be deemed to beneficially own the securities owned directly by 22NW Fund. Mr. English, as the Portfolio Manager of 22NW, Manager of 22NW GP and President and sole shareholder of 22NW Inc., may be deemed to beneficially own the securities owned directly by 22NW Fund.
4. Represents a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.0000 to $28.1000, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.
/s/ Aron R. English03/30/2026
22NW Fund, LP; By: 22NW Fund GP, LLC; By: /s/ Aron R. English, Manager03/30/2026
22NW, LP; By: 22NW GP, Inc.; By: /s/ Aron R. English, President and Sole Shareholder03/30/2026
22NW Fund GP, LLC; By: /s/ Aron R. English, Manager03/30/2026
22NW GP, Inc., By: /s/ Aron R. English, President and Sole Shareholder03/30/2026
** Signature of Reporting PersonDate
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).
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 4: SEC 1474 (03-26)

FAQ

What did 22NW Fund report in its latest Form 4 for FSTR?

22NW Fund, LP reported open-market sales of 11,717 FOSTER L B CO (FSTR) shares across three days at prices around $28 per share. These transactions reflect trading by a holder that may be part of a group owning over 10% of the company.

Over what dates did 22NW Fund sell FSTR shares?

The reported FSTR share sales occurred on March 26, March 27, and March 30. Each day included open-market transactions at prices just above $28 per share, with the largest single-day sale being 8,968 shares on March 26.

How many FSTR shares does 22NW Fund hold after these sales?

After the reported transactions, 22NW Fund indirectly holds 1,067,186 FOSTER L B CO (FSTR) shares. An additional 905 shares are reported as directly owned, giving investors a snapshot of the group’s remaining disclosed position.

Who are the reporting persons on this FSTR Form 4 filing?

The Form 4 lists 22NW Fund, LP, 22NW, LP, 22NW Fund GP, LLC, 22NW GP, Inc., and Aron English as reporting persons. They may be deemed part of a Section 13(d) group that beneficially owns more than 10% of FOSTER L B CO’s common stock.

At what prices did 22NW Fund sell its FSTR shares?

The FSTR shares were sold at weighted average prices near $28, including about $28.0208 and $28.0111. Footnotes state these averages reflect multiple trades in ranges between $28.00 and roughly $28.12 per share.

Does Aron English personally own the FSTR shares sold in this Form 4?

The filing states the securities are owned directly by 22NW Fund, LP. Other reporting persons, including Aron English, may be deemed to beneficially own them but disclaim ownership except to the extent of their pecuniary interest.