NASDAQ:FSTR

L.b. Foster Company Stock Insider Trading

Industrials > Railroads

Buy FSTR

*Your capital is at risk

$41.13

-0.0600 (-0.146%)

At Close: Jul 31, 2026

L.B. Foster Company Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -58.35. In total, the insiders bought 261.73K and sold 298.4K FSTR shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-58.35
● Buy	261.73K shares
● Sell	298.4K shares
55% Buy Activity Strong Negative Correlation
Sell Signal High Confidence Mar 23, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -58.35. Partially supported by a negative historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Feb 19, 2026 Buy	Common Stock A-Award	Guinee Patrick J. EVP General Counsel & Sec.	Officer	7 170 Value: $223.2K
Feb 19, 2026 Sell	Common Stock F-InKind	Guinee Patrick J. EVP General Counsel & Sec.	Officer	10 091 Value: $314.1K
Feb 19, 2026 Buy	Common Stock A-Award	Guinee Patrick J. EVP General Counsel & Sec.	Officer	3 359 Value: $104.5K
Feb 19, 2026 Buy	Common Stock A-Award	Kasel John F President & Chief Exec Officer	CEO / President	26 289 Value: $818.2K
Feb 19, 2026 Buy	Common Stock A-Award	Thalman William M EVP & CFO	C-Suite Officer	6 297 Value: $196.0K
Feb 19, 2026 Buy	Common Stock A-Award	Thalman William M EVP & CFO	C-Suite Officer	3 651 Value: $113.6K
Feb 19, 2026 Buy	Common Stock A-Award	Thalman William M EVP & CFO	C-Suite Officer	8 365 Value: $260.4K
Feb 19, 2026 Sell	Common Stock F-InKind	Thalman William M EVP & CFO	C-Suite Officer	11 746 Value: $365.6K
Feb 19, 2026 Buy	Common Stock A-Award	Rolli Sara Fay SVP, Operational Admin	Officer	1 985 Value: $61.8K
Feb 19, 2026 Sell	Common Stock F-InKind	Rolli Sara Fay SVP, Operational Admin	Officer	1 499 Value: $46.7K
Feb 19, 2026 Sell	Common Stock F-InKind	Friedman Brian Hunter SVP, Chief Growth Officer	Officer	3 476 Value: $108.2K
Feb 19, 2026 Buy	Common Stock A-Award	Friedman Brian Hunter SVP, Chief Growth Officer	Officer	3 585 Value: $111.6K
Feb 19, 2026 Buy	Common Stock A-Award	Kasel John F President & Chief Exec Officer	CEO / President	4 754 Value: $148.0K
Feb 14, 2026 Sell	Common Stock F-InKind	Guinee Patrick J. EVP General Counsel & Sec.	Officer	1 507 Value: $47.7K
Feb 14, 2026 Sell	Common Stock F-InKind	Kasel John F President & Chief Exec Officer	CEO / President	5 383 Value: $170.3K
Feb 14, 2026 Sell	Common Stock F-InKind	Ness Robert SVP, Precast Concrete Products	Officer	850 Value: $26.9K
Feb 14, 2026 Sell	Common Stock F-InKind	Reilly Sean M Controller	Officer	686 Value: $21.7K
Feb 14, 2026 Sell	Common Stock F-InKind	Lippard Gregory W SVP -rail	Officer	1 340 Value: $42.4K
Feb 14, 2026 Sell	Common Stock F-InKind	Thalman William M EVP & CFO	C-Suite Officer	1 736 Value: $54.9K
Feb 14, 2026 Sell	Common Stock F-InKind	Friedman Brian Hunter SVP, Chief Growth Officer	Officer	585 Value: $18.5K
Feb 14, 2026 Sell	Common Stock F-InKind	Rolli Sara Fay SVP, Operational Admin	Officer	221 Value: $7K
Feb 13, 2026 Sell	Common Stock F-InKind	Friedman Brian Hunter SVP, Chief Growth Officer	Officer	380 Value: $12.0K
Feb 13, 2026 Sell	Common Stock F-InKind	Ness Robert SVP, Precast Concrete Products	Officer	548 Value: $17.3K
Feb 13, 2026 Sell	Common Stock F-InKind	Kasel John F President & Chief Exec Officer	CEO / President	2 907 Value: $91.9K
Feb 13, 2026 Sell	Common Stock F-InKind	Rolli Sara Fay SVP, Operational Admin	Officer	161 Value: $5K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT L.B. FOSTER COMPANY

L.B. Foster Company provides engineered and manufactured products and services for the building and infrastructure projects worldwide. The company's Rail, Technologies, and Services segment offers new rail to passenger and short line freight railroads, industrial companies, and rail contractors; used rails; rail accessories, including track spikes and anchors, bolts, angle bars, tie plates, and other products; power rail, direct fixation fastener...

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