FSTR

insider transactions

FOSTER L B CO — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 365d

-163.8K

0 buy · 163.8K sell

Net value · 365d

-$4.7M

$0 in · $4.7M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 163.8K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Grant·A
Jun 1, 26

Sean M Reilly KEY

SVP and CFO

$0

895 sh

Own +3%
Grant·A
Jun 1, 26

THALMAN WILLIAM M

EVP & COO

$0

1.1K sh

Own +1%
Grant·A
Jun 1, 26

Timothy Joseph Curran

Controller and PAO

$0

295 sh

Own +3%
Other·F
May 22, 26

Jamie F O'Neill

SVP, Human Resources

$10.3K

269 sh · $38.11

Own -2%
Other·F
May 22, 26

Sara Fay Rolli

SVP, Operational Admin

$13.4K

352 sh · $38.11

Own -4%
Other·F
May 22, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$15.9K

416 sh · $38.11

Own -1%
Other·F
May 22, 26

Robert Ness

SVP, Precast Concrete Products

$26.0K

683 sh · $38.11

Own -2%
Other·F
May 22, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$41.0K

1.1K sh · $38.11

Own -1%
Other·F
May 22, 26

John E Kunz

Director

$1.4K

36 sh · $38.11

Own -0%
Other·F
May 22, 26

Sean M Reilly

Controller

$16.2K

425 sh · $38.11

Own -1%
Other·F
May 22, 26

John F Kasel KEY

President & Chief Exec Officer

$156.3K

4.1K sh · $38.11

Own -2%
Other·F
May 22, 26

Diane B Owen

Director

$3.7K

96 sh · $38.11

Own -0%
Other·F
May 22, 26

Gregory W Lippard

SVP -Rail

$34.5K

905 sh · $38.11

Own -1%
Other·F
May 22, 26

THALMAN WILLIAM M KEY

EVP & CFO

$44.9K

1.2K sh · $38.11

Own -1%
Grant·A
May 21, 26

Bruce Ernest Thompson

Director

$0

2.4K sh

Own +12%
Grant·A
May 21, 26

David J Meyer

Director

$0

2.4K sh

Own +19%
Grant·A
May 21, 26

John E Kunz

Director

$0

2.4K sh

Own +12%
Grant·A
May 21, 26

Diane B Owen

Director

$0

2.4K sh

Own +3%
Grant·A
May 21, 26

Raymond T Betler

Director

$0

2.4K sh

Own +7%
Sell·S
Apr 1, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$1.1M

38.4K sh · $28.05

Own -4%
Grant·A
Mar 31, 26

David J Meyer

Director

$19.1K

683 sh · $27.90

Own +6%
Sell·S
Mar 31, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$42.0K

1.5K sh · $28.02

Own -0%
Sell·S
Mar 30, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$52.9K

1.9K sh · $28.01

Own -0%
Sell·S
Mar 27, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$24.2K

862 sh · $28.02

Own -0%
Sell·S
Mar 26, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$251.3K

9.0K sh · $28.02

Own -1%
Sell·S
Mar 25, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$76.3K

2.7K sh · $28.09

Own -0%
Sell·S
Mar 24, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$729.7K

25.9K sh · $28.19

Own -2%
Sell·S
Mar 23, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$2.2M

78.4K sh · $28.51

Own -7%
Sell·S
Mar 4, 26

Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.

10% Owner

$163.9K

5.1K sh · $31.99

Own -0%
Other·F
Mar 1, 26

Sara Fay Rolli

SVP, Operational Admin

$2.2K

72 sh · $30.73

Own -1%
Other·F
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$46.7K

1.5K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

2.0K sh

Own +22%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

407 sh

Own +5%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

584 sh

Own +7%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

956 sh

Own +13%
Other·F
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$108.2K

3.5K sh · $31.13

Own -10%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

3.1K sh

Own +10%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

713 sh

Own +2%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

1.9K sh

Own +7%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

3.6K sh

Own +14%
Other·F
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$314.1K

10.1K sh · $31.13

Own -10%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

5.6K sh

Own +6%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

1.2K sh

Own +1%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

3.4K sh

Own +4%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

7.2K sh

Own +9%
Other·F
Feb 19, 26

Sean M Reilly

Controller

$134.1K

4.3K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

2.1K sh

Own +6%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

492 sh

Own +2%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

1.3K sh

Own +4%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

3.0K sh

Own +11%
Other·F
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$1.1M

36.7K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

20.5K sh

Own +8%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

4.8K sh

Own +2%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

11.7K sh

Own +5%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

26.3K sh

Own +12%
Other·F
Feb 19, 26

Gregory W Lippard

SVP -Rail

$271.9K

8.7K sh · $31.13

Own -10%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

4.2K sh

Own +5%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

1.0K sh

Own +1%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

2.7K sh

Own +3%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

6.0K sh

Own +8%
Other·F
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$164.4K

5.3K sh · $31.13

Own -14%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

3.4K sh

Own +10%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

764 sh

Own +2%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

1.9K sh

Own +6%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

3.6K sh

Own +13%
Other·F
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$365.6K

11.7K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

6.3K sh

Own +7%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

1.4K sh

Own +2%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

3.7K sh

Own +5%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

8.4K sh

Own +12%
Other·F
Feb 19, 26

Jamie F O'Neill

SVP, Human Resources

$46.9K

1.5K sh · $31.13

Own -8%
Grant·A
Feb 19, 26

Jamie F O'Neill

SVP, Human Resources

$0

2.4K sh

Own +15%
Grant·A
Feb 19, 26

Jamie F O'Neill

SVP, Human Resources

$0

475 sh

Own +3%
Grant·A
Feb 19, 26

Jamie F O'Neill

SVP, Human Resources

$0

682 sh

Own +5%
Grant·A
Feb 19, 26

Jamie F O'Neill

SVP, Human Resources

$0

1.4K sh

Own +11%
Other·F
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$46.7K

1.5K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

2.0K sh

Own +21%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

407 sh

Own +5%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

584 sh

Own +7%
Grant·A
Feb 19, 26

Sara Fay Rolli

SVP, Operational Admin

$0

956 sh

Own +13%
Other·F
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$108.2K

3.5K sh · $31.13

Own -10%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

3.1K sh

Own +10%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

713 sh

Own +2%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

1.9K sh

Own +7%
Grant·A
Feb 19, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$0

3.6K sh

Own +14%
Other·F
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$164.4K

5.3K sh · $31.13

Own -14%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

3.4K sh

Own +10%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

764 sh

Own +2%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

1.9K sh

Own +6%
Grant·A
Feb 19, 26

Robert Ness

SVP, Precast Concrete Products

$0

3.6K sh

Own +12%
Other·F
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$314.1K

10.1K sh · $31.13

Own -10%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

5.6K sh

Own +6%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

1.2K sh

Own +1%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

3.4K sh

Own +4%
Grant·A
Feb 19, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

7.2K sh

Own +9%
Other·F
Feb 19, 26

Sean M Reilly

Controller

$134.1K

4.3K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

2.1K sh

Own +6%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

492 sh

Own +2%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

1.3K sh

Own +4%
Grant·A
Feb 19, 26

Sean M Reilly

Controller

$0

3.0K sh

Own +11%
Other·F
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$1.1M

36.7K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

20.5K sh

Own +8%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

4.8K sh

Own +2%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

11.7K sh

Own +5%
Grant·A
Feb 19, 26

John F Kasel KEY

President & Chief Exec Officer

$0

26.3K sh

Own +12%
Other·F
Feb 19, 26

Gregory W Lippard

SVP -Rail

$271.9K

8.7K sh · $31.13

Own -10%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

4.2K sh

Own +5%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

1.0K sh

Own +1%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

2.7K sh

Own +3%
Grant·A
Feb 19, 26

Gregory W Lippard

SVP -Rail

$0

6.0K sh

Own +8%
Other·F
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$365.6K

11.7K sh · $31.13

Own -13%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

6.3K sh

Own +7%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

1.4K sh

Own +2%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

3.7K sh

Own +5%
Grant·A
Feb 19, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

8.4K sh

Own +12%
Other·F
Feb 14, 26

Sara Fay Rolli

SVP, Operational Admin

$7.0K

221 sh · $31.63

Own -3%
Other·F
Feb 14, 26

Robert Ness

SVP, Precast Concrete Products

$26.9K

850 sh · $31.63

Own -3%
Other·F
Feb 14, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$47.7K

1.5K sh · $31.63

Own -2%
Other·F
Feb 14, 26

Sean M Reilly

Controller

$21.7K

686 sh · $31.63

Own -2%
Other·F
Feb 14, 26

Gregory W Lippard

SVP -Rail

$42.4K

1.3K sh · $31.63

Own -2%
Other·F
Feb 14, 26

THALMAN WILLIAM M KEY

EVP & CFO

$54.9K

1.7K sh · $31.63

Own -2%
Other·F
Feb 14, 26

John F Kasel KEY

President & Chief Exec Officer

$170.3K

5.4K sh · $31.63

Own -2%
Other·F
Feb 14, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$18.5K

585 sh · $31.63

Own -2%
Other·F
Feb 14, 26

Sara Fay Rolli

SVP, Operational Admin

$4.8K

153 sh · $31.63

Own -2%
Other·F
Feb 14, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$23.7K

749 sh · $31.63

Own -3%
Other·F
Feb 14, 26

Robert Ness

SVP, Precast Concrete Products

$24.0K

760 sh · $31.63

Own -3%
Other·F
Feb 14, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$46.8K

1.5K sh · $31.63

Own -2%
Other·F
Feb 14, 26

Sean M Reilly

Controller

$19.4K

612 sh · $31.63

Own -2%
Other·F
Feb 14, 26

John F Kasel KEY

President & Chief Exec Officer

$170.3K

5.4K sh · $31.63

Own -2%
Other·F
Feb 14, 26

Gregory W Lippard

SVP -Rail

$40.5K

1.3K sh · $31.63

Own -2%
Other·F
Feb 14, 26

THALMAN WILLIAM M KEY

EVP & CFO

$54.4K

1.7K sh · $31.63

Own -2%
Other·F
Feb 14, 26

Jamie F O'Neill

SVP, Human Resources

$7.2K

229 sh · $31.63

Own -2%
Other·F
Feb 14, 26

THALMAN WILLIAM M KEY

EVP & CFO

$54.4K

1.7K sh · $31.63

Own -2%
Other·F
Feb 14, 26

John F Kasel KEY

President & Chief Exec Officer

$170.3K

5.4K sh · $31.63

Own -2%
Other·F
Feb 13, 26

Sara Fay Rolli

SVP, Operational Admin

$5.1K

161 sh · $31.63

Own -2%
Other·F
Feb 13, 26

Robert Ness

SVP, Precast Concrete Products

$17.3K

548 sh · $31.63

Own -2%
Other·F
Feb 13, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$29.4K

928 sh · $31.63

Own -1%
Other·F
Feb 13, 26

Sean M Reilly

Controller

$11.5K

362 sh · $31.63

Own -1%
Other·F
Feb 13, 26

Gregory W Lippard

SVP -Rail

$24.2K

765 sh · $31.63

Own -1%
Other·F
Feb 13, 26

THALMAN WILLIAM M KEY

EVP & CFO

$31.9K

1.0K sh · $31.63

Own -1%
Other·F
Feb 13, 26

John F Kasel KEY

President & Chief Exec Officer

$91.9K

2.9K sh · $31.63

Own -1%
Other·F
Feb 13, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$12.0K

380 sh · $31.63

Own -1%
Other·F
Feb 13, 26

Sara Fay Rolli

SVP, Operational Admin

$3.5K

112 sh · $31.63

Own -1%
Other·F
Feb 13, 26

Brian Hunter Friedman

SVP, Chief Growth Officer

$17.2K

545 sh · $31.63

Own -2%
Other·F
Feb 13, 26

Robert Ness

SVP, Precast Concrete Products

$17.5K

552 sh · $31.63

Own -2%
Other·F
Feb 13, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$29.4K

928 sh · $31.63

Own -1%
Other·F
Feb 13, 26

Sean M Reilly

Controller

$11.5K

362 sh · $31.63

Own -1%
Other·F
Feb 13, 26

John F Kasel KEY

President & Chief Exec Officer

$97.3K

3.1K sh · $31.63

Own -1%
Other·F
Feb 13, 26

Gregory W Lippard

SVP -Rail

$24.2K

765 sh · $31.63

Own -1%
Other·F
Feb 13, 26

THALMAN WILLIAM M KEY

EVP & CFO

$31.9K

1.0K sh · $31.63

Own -1%
Other·F
Feb 13, 26

Jamie F O'Neill

SVP, Human Resources

$4.1K

130 sh · $31.63

Own -1%
Other·F
Feb 13, 26

THALMAN WILLIAM M KEY

EVP & CFO

$31.9K

1.0K sh · $31.63

Own -1%
Other·F
Feb 13, 26

John F Kasel KEY

President & Chief Exec Officer

$97.3K

3.1K sh · $31.63

Own -1%
Exercise·M
Feb 11, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$52.6K

1.7K sh · $31.54

Own New
Other·F
Feb 11, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$25.8K

819 sh · $31.54

Own -1%
Exercise·M
Feb 11, 26

Patrick J. Guinee

EVP General Counsel & Sec.

$0

1.7K sh

Own +2%
Exercise·M
Feb 11, 26

Gregory W Lippard

SVP -Rail

$52.6K

1.7K sh · $31.54

Own New
Other·F
Feb 11, 26

Gregory W Lippard

SVP -Rail

$26.7K

847 sh · $31.54

Own -1%
Exercise·M
Feb 11, 26

Gregory W Lippard

SVP -Rail

$0

1.7K sh

Own +2%
Exercise·M
Feb 11, 26

THALMAN WILLIAM M KEY

EVP & CFO

$52.6K

1.7K sh · $31.54

Own New
Other·F
Feb 11, 26

THALMAN WILLIAM M KEY

EVP & CFO

$26.1K

829 sh · $31.54

Own -1%
Exercise·M
Feb 11, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

1.7K sh

Own +2%
Exercise·M
Feb 11, 26

John F Kasel KEY

President & Chief Exec Officer

$52.6K

1.7K sh · $31.54

Own New
Other·F
Feb 11, 26

John F Kasel KEY

President & Chief Exec Officer

$26.1K

829 sh · $31.54

Own -0%
Exercise·M
Feb 11, 26

John F Kasel KEY

President & Chief Exec Officer

$0

1.7K sh

Own +1%
Exercise·M
Feb 11, 26

John F Kasel KEY

President & Chief Exec Officer

$52.6K

1.7K sh · $31.54

Own New
Other·F
Feb 11, 26

John F Kasel KEY

President & Chief Exec Officer

$25.7K

814 sh · $31.54

Own -0%
Exercise·M
Feb 11, 26

John F Kasel KEY

President & Chief Exec Officer

$0

1.7K sh

Own +1%
Exercise·M
Feb 11, 26

THALMAN WILLIAM M KEY

EVP & CFO

$52.6K

1.7K sh · $31.54

Own New
Other·F
Feb 11, 26

THALMAN WILLIAM M KEY

EVP & CFO

$25.8K

817 sh · $31.54

Own -1%
Exercise·M
Feb 11, 26

THALMAN WILLIAM M KEY

EVP & CFO

$0

1.7K sh

Own +2%
Grant·A
Dec 31, 25

David J Meyer

Director

$19.1K

707 sh · $26.95

Own +6%
Other·F
Dec 31, 25

Brian H Kelly KEY

EVP and Sr. Advisor to the CEO

$80.6K

3.0K sh · $26.95

Own -4%
Other·F
Dec 31, 25

Brian H Kelly KEY

EVP and Sr. Advisor to the CEO

$41.1K

1.5K sh · $26.95

Own -2%
Other·F
Dec 31, 25

Brian H Kelly KEY

EVP and Sr. Advisor to the CEO

$39.6K

1.5K sh · $26.95

Own -2%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 1, 2026	Sean M Reilly KEY	SVP and CFO	Grant A	895	+3%	—	$0
Jun 1, 2026	THALMAN WILLIAM M	EVP & COO	Grant A	1.1K	+1%	—	$0
Jun 1, 2026	Timothy Joseph Curran	Controller and PAO	Grant A	295	+3%	—	$0
May 22, 2026	Jamie F O'Neill	SVP, Human Resources	Other F	269	-2%	$38.11	$10.3K
May 22, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	352	-4%	$38.11	$13.4K
May 22, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	416	-1%	$38.11	$15.9K
May 22, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	683	-2%	$38.11	$26.0K
May 22, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	1.1K	-1%	$38.11	$41.0K
May 22, 2026	John E Kunz	Director	Other F	36	-0%	$38.11	$1.4K
May 22, 2026	Sean M Reilly	Controller	Other F	425	-1%	$38.11	$16.2K
May 22, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	4.1K	-2%	$38.11	$156.3K
May 22, 2026	Diane B Owen	Director	Other F	96	-0%	$38.11	$3.7K
May 22, 2026	Gregory W Lippard	SVP -Rail	Other F	905	-1%	$38.11	$34.5K
May 22, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.2K	-1%	$38.11	$44.9K
May 21, 2026	Bruce Ernest Thompson	Director	Grant A	2.4K	+12%	—	$0
May 21, 2026	David J Meyer	Director	Grant A	2.4K	+19%	—	$0
May 21, 2026	John E Kunz	Director	Grant A	2.4K	+12%	—	$0
May 21, 2026	Diane B Owen	Director	Grant A	2.4K	+3%	—	$0
May 21, 2026	Raymond T Betler	Director	Grant A	2.4K	+7%	—	$0
Apr 1, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	38.4K	-4%	$28.05	$1.1M
Mar 31, 2026	David J Meyer	Director	Grant A	683	+6%	$27.90	$19.1K
Mar 31, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	1.5K	-0%	$28.02	$42.0K
Mar 30, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	1.9K	-0%	$28.01	$52.9K
Mar 27, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	862	-0%	$28.02	$24.2K
Mar 26, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	9.0K	-1%	$28.02	$251.3K
Mar 25, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	2.7K	-0%	$28.09	$76.3K
Mar 24, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	25.9K	-2%	$28.19	$729.7K
Mar 23, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	78.4K	-7%	$28.51	$2.2M
Mar 4, 2026	Aron R. English / 22NW, LP / 22NW Fund, LP / 22NW Fund GP, LLC / 22NW GP, Inc.	10% Owner	Sell S	5.1K	-0%	$31.99	$163.9K
Mar 1, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	72	-1%	$30.73	$2.2K
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	1.5K	-13%	$31.13	$46.7K
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	2.0K	+22%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	407	+5%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	584	+7%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	956	+13%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	3.5K	-10%	$31.13	$108.2K
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	3.1K	+10%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	713	+2%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	1.9K	+7%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	3.6K	+14%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	10.1K	-10%	$31.13	$314.1K
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	5.6K	+6%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	1.2K	+1%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	3.4K	+4%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	7.2K	+9%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Other F	4.3K	-13%	$31.13	$134.1K
Feb 19, 2026	Sean M Reilly	Controller	Grant A	2.1K	+6%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Grant A	492	+2%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Grant A	1.3K	+4%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Grant A	3.0K	+11%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	36.7K	-13%	$31.13	$1.1M
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	20.5K	+8%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	4.8K	+2%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	11.7K	+5%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	26.3K	+12%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Other F	8.7K	-10%	$31.13	$271.9K
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	4.2K	+5%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	1.0K	+1%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	2.7K	+3%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	6.0K	+8%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	5.3K	-14%	$31.13	$164.4K
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	3.4K	+10%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	764	+2%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	1.9K	+6%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	3.6K	+13%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	11.7K	-13%	$31.13	$365.6K
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	6.3K	+7%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	1.4K	+2%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	3.7K	+5%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	8.4K	+12%	—	$0
Feb 19, 2026	Jamie F O'Neill	SVP, Human Resources	Other F	1.5K	-8%	$31.13	$46.9K
Feb 19, 2026	Jamie F O'Neill	SVP, Human Resources	Grant A	2.4K	+15%	—	$0
Feb 19, 2026	Jamie F O'Neill	SVP, Human Resources	Grant A	475	+3%	—	$0
Feb 19, 2026	Jamie F O'Neill	SVP, Human Resources	Grant A	682	+5%	—	$0
Feb 19, 2026	Jamie F O'Neill	SVP, Human Resources	Grant A	1.4K	+11%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	1.5K	-13%	$31.13	$46.7K
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	2.0K	+21%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	407	+5%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	584	+7%	—	$0
Feb 19, 2026	Sara Fay Rolli	SVP, Operational Admin	Grant A	956	+13%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	3.5K	-10%	$31.13	$108.2K
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	3.1K	+10%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	713	+2%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	1.9K	+7%	—	$0
Feb 19, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Grant A	3.6K	+14%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	5.3K	-14%	$31.13	$164.4K
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	3.4K	+10%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	764	+2%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	1.9K	+6%	—	$0
Feb 19, 2026	Robert Ness	SVP, Precast Concrete Products	Grant A	3.6K	+12%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	10.1K	-10%	$31.13	$314.1K
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	5.6K	+6%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	1.2K	+1%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	3.4K	+4%	—	$0
Feb 19, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Grant A	7.2K	+9%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Other F	4.3K	-13%	$31.13	$134.1K
Feb 19, 2026	Sean M Reilly	Controller	Grant A	2.1K	+6%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Grant A	492	+2%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Grant A	1.3K	+4%	—	$0
Feb 19, 2026	Sean M Reilly	Controller	Grant A	3.0K	+11%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	36.7K	-13%	$31.13	$1.1M
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	20.5K	+8%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	4.8K	+2%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	11.7K	+5%	—	$0
Feb 19, 2026	John F Kasel KEY	President & Chief Exec Officer	Grant A	26.3K	+12%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Other F	8.7K	-10%	$31.13	$271.9K
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	4.2K	+5%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	1.0K	+1%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	2.7K	+3%	—	$0
Feb 19, 2026	Gregory W Lippard	SVP -Rail	Grant A	6.0K	+8%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	11.7K	-13%	$31.13	$365.6K
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	6.3K	+7%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	1.4K	+2%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	3.7K	+5%	—	$0
Feb 19, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Grant A	8.4K	+12%	—	$0
Feb 14, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	221	-3%	$31.63	$7.0K
Feb 14, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	850	-3%	$31.63	$26.9K
Feb 14, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	1.5K	-2%	$31.63	$47.7K
Feb 14, 2026	Sean M Reilly	Controller	Other F	686	-2%	$31.63	$21.7K
Feb 14, 2026	Gregory W Lippard	SVP -Rail	Other F	1.3K	-2%	$31.63	$42.4K
Feb 14, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.7K	-2%	$31.63	$54.9K
Feb 14, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	5.4K	-2%	$31.63	$170.3K
Feb 14, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	585	-2%	$31.63	$18.5K
Feb 14, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	153	-2%	$31.63	$4.8K
Feb 14, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	749	-3%	$31.63	$23.7K
Feb 14, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	760	-3%	$31.63	$24.0K
Feb 14, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	1.5K	-2%	$31.63	$46.8K
Feb 14, 2026	Sean M Reilly	Controller	Other F	612	-2%	$31.63	$19.4K
Feb 14, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	5.4K	-2%	$31.63	$170.3K
Feb 14, 2026	Gregory W Lippard	SVP -Rail	Other F	1.3K	-2%	$31.63	$40.5K
Feb 14, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.7K	-2%	$31.63	$54.4K
Feb 14, 2026	Jamie F O'Neill	SVP, Human Resources	Other F	229	-2%	$31.63	$7.2K
Feb 14, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.7K	-2%	$31.63	$54.4K
Feb 14, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	5.4K	-2%	$31.63	$170.3K
Feb 13, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	161	-2%	$31.63	$5.1K
Feb 13, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	548	-2%	$31.63	$17.3K
Feb 13, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	928	-1%	$31.63	$29.4K
Feb 13, 2026	Sean M Reilly	Controller	Other F	362	-1%	$31.63	$11.5K
Feb 13, 2026	Gregory W Lippard	SVP -Rail	Other F	765	-1%	$31.63	$24.2K
Feb 13, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.0K	-1%	$31.63	$31.9K
Feb 13, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	2.9K	-1%	$31.63	$91.9K
Feb 13, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	380	-1%	$31.63	$12.0K
Feb 13, 2026	Sara Fay Rolli	SVP, Operational Admin	Other F	112	-1%	$31.63	$3.5K
Feb 13, 2026	Brian Hunter Friedman	SVP, Chief Growth Officer	Other F	545	-2%	$31.63	$17.2K
Feb 13, 2026	Robert Ness	SVP, Precast Concrete Products	Other F	552	-2%	$31.63	$17.5K
Feb 13, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	928	-1%	$31.63	$29.4K
Feb 13, 2026	Sean M Reilly	Controller	Other F	362	-1%	$31.63	$11.5K
Feb 13, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	3.1K	-1%	$31.63	$97.3K
Feb 13, 2026	Gregory W Lippard	SVP -Rail	Other F	765	-1%	$31.63	$24.2K
Feb 13, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.0K	-1%	$31.63	$31.9K
Feb 13, 2026	Jamie F O'Neill	SVP, Human Resources	Other F	130	-1%	$31.63	$4.1K
Feb 13, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	1.0K	-1%	$31.63	$31.9K
Feb 13, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	3.1K	-1%	$31.63	$97.3K
Feb 11, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Exercise M	1.7K	New	$31.54	$52.6K
Feb 11, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Other F	819	-1%	$31.54	$25.8K
Feb 11, 2026	Patrick J. Guinee	EVP General Counsel & Sec.	Exercise M	1.7K	+2%	—	$0
Feb 11, 2026	Gregory W Lippard	SVP -Rail	Exercise M	1.7K	New	$31.54	$52.6K
Feb 11, 2026	Gregory W Lippard	SVP -Rail	Other F	847	-1%	$31.54	$26.7K
Feb 11, 2026	Gregory W Lippard	SVP -Rail	Exercise M	1.7K	+2%	—	$0
Feb 11, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Exercise M	1.7K	New	$31.54	$52.6K
Feb 11, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	829	-1%	$31.54	$26.1K
Feb 11, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Exercise M	1.7K	+2%	—	$0
Feb 11, 2026	John F Kasel KEY	President & Chief Exec Officer	Exercise M	1.7K	New	$31.54	$52.6K
Feb 11, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	829	-0%	$31.54	$26.1K
Feb 11, 2026	John F Kasel KEY	President & Chief Exec Officer	Exercise M	1.7K	+1%	—	$0
Feb 11, 2026	John F Kasel KEY	President & Chief Exec Officer	Exercise M	1.7K	New	$31.54	$52.6K
Feb 11, 2026	John F Kasel KEY	President & Chief Exec Officer	Other F	814	-0%	$31.54	$25.7K
Feb 11, 2026	John F Kasel KEY	President & Chief Exec Officer	Exercise M	1.7K	+1%	—	$0
Feb 11, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Exercise M	1.7K	New	$31.54	$52.6K
Feb 11, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Other F	817	-1%	$31.54	$25.8K
Feb 11, 2026	THALMAN WILLIAM M KEY	EVP & CFO	Exercise M	1.7K	+2%	—	$0
Dec 31, 2025	David J Meyer	Director	Grant A	707	+6%	$26.95	$19.1K
Dec 31, 2025	Brian H Kelly KEY	EVP and Sr. Advisor to the CEO	Other F	3.0K	-4%	$26.95	$80.6K
Dec 31, 2025	Brian H Kelly KEY	EVP and Sr. Advisor to the CEO	Other F	1.5K	-2%	$26.95	$41.1K
Dec 31, 2025	Brian H Kelly KEY	EVP and Sr. Advisor to the CEO	Other F	1.5K	-2%	$26.95	$39.6K

About FSTR insider trading

This page tracks insider transactions for FOSTER L B CO (FSTR) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.