ISSUER PROFILE · CIK 0000352825 · CUSIP 350060109

FOSTER L B COFSTR

13 13D/G filings 3 distinct filers 3 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d

+13.5%

avg +13.5%

Median 60d

—

avg —

Median 90d

—

avg —

Median 180d

—

avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Activist filings

1 SCHEDULE 13D/A · 12 SC

Distinct filers

multi-activist cluster

Insiders (365d)

3 buys · 0 sales

Latest short DTC

1.00

as of 2026-05-29

Filed	Form	Filer	Stake	Shares
2026-04-02	SCHEDULE 13D/A	22NW Fund, LP	9.80%	1,004,117	view →
2024-01-26	SC	22NW Fund, LP	—	—	view →
2022-01-14	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2021-11-18	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2021-05-26	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2021-03-12	SC	Legion Partners Asset Management, LLC	—	—	view →
2021-01-20	SC	Legion Partners Asset Management, LLC	—	—	view →
2020-12-17	SC	Legion Partners Asset Management, LLC	—	—	view →
2020-11-25	SC	Legion Partners Asset Management, LLC	—	—	view →
2020-10-08	SC	Legion Partners Asset Management, LLC	—	—	view →
2020-08-10	SC	Legion Partners Asset Management, LLC	—	—	view →
2018-03-14	SC	Legion Partners Asset Management, LLC	—	—	view →
2018-01-03	SC	Legion Partners Asset Management, LLC	—	—	view →

Date	Insider	Role	Type	Shares	Price	Value
2026-05-21	OWEN DIANE B	director	Award	2,363	—	—
2026-05-21	Kunz John E	director	Award	2,363	—	—
2026-05-21	Meyer David J	director	Award	2,363	—	—

Settlement	Short Interest	Days to Cover	% Δ vs prior
2026-05-29	91,517	1.00	+14.0%
2026-05-15	80,284	1.00	-29.6%
2026-04-30	114,115	1.00	+6.8%
2026-04-15	106,795	1.01	-28.7%
2026-03-31	149,848	3.36	-12.8%
2026-03-13	171,936	6.18	+17.9%
2026-02-27	145,829	9.13	-14.7%
2026-02-13	170,965	8.05	+6.7%
2026-01-30	160,193	8.84	-8.3%
2026-01-15	174,771	8.75	+2.0%
2025-12-31	171,316	9.13	+1.5%
2025-12-15	168,772	5.11	+12.0%

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