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Servotronics INC Stock: price and management transactions · United States · SEC (Form 4)
Follow the Servotronics INC stock price and the full insider trade history of the company, a listed issuer based in United States. Shares trade on US US, under the supervision of SEC (Form 4). Operating in the Industry sector, Servotronics INC has logged 2 reports. The latest transaction was filed on 17 May 2021 (Attribution). Among the most active insiders: Gygax Lucion P. The full history is accessible without an account.
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9Σ signal
Informational score on this market. Our backtest validates the signal only on 8 EU venues; elsewhere (notably US markets) insider buys historically invert or do not hold. Not a recommendation.
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Last declaration on 17 May 2021
Declarations2 total
3,290 sharesCommon StockSEC:0001239944-21-000029
3,290 sharesCommon StockSEC:0001239944-21-000028
2 of 2 declarations
About Servotronics INC
SERVOTRONICS INC /DE/ is a U.S. industrial specialist focused on precision motion-control components, with its core franchise built around servo-valve technology. The company was founded in 1959 by Dr. Nicholas D. Trbovich and is headquartered in Elma, New York, United States, with an additional manufacturing facility in Franklinville, New York. For French, Belgian and Swiss investors, Servotronics is best understood as a niche engineered-products business rather than a broad-based industrial OEM. ([servotronics.com](https://www.servotronics.com/founder?utm_source=openai)) The company’s product portfolio centers on single-stage and two-stage servo valves, along with related electro-hydraulic and pneumatic control solutions. These products are designed for demanding environments where performance, reliability, and durability matter, including aerospace, defense, industrial and MRO applications. Servotronics emphasizes close collaboration with customers’ engineering teams, offering configurable solutions rather than off-the-shelf catalog products. That approach is a key differentiator in its niche, especially for programs that require tight specifications and high reliability. ([servotronics.com](https://www.servotronics.com/)) From a competitive standpoint, Servotronics has historically occupied a specialized position in the high-reliability control-components market. Its value proposition has been based on engineering capability, product quality, and the ability to support aerospace customers with technically demanding applications. Public filings and company materials indicate that its addressable markets have been concentrated in aerospace, defense and industrial end uses, which typically reward precision, qualification expertise and long-term customer relationships more than scale alone. ([servotronics.com](https://www.servotronics.com/)) A major recent development is the company’s acquisition by TransDigm. TransDigm announced the deal on May 19, 2025, amended the offer price to $47.00 per share on May 29, 2025, and completed the acquisition on July 1, 2025. Following closing, Servotronics became a wholly owned subsidiary of TransDigm, with its results subsequently included in TransDigm’s Power & Control segment. For investors tracking SEC Form 4 insider transactions, this is an important context point: Servotronics is no longer effectively a standalone listed equity story on NYSE/NASDAQ, but an acquired business inside a larger aerospace component platform. ([transdigmgroupinc.gcs-web.com](https://transdigmgroupinc.gcs-web.com/news-releases/news-release-details/transdigm-group-and-servotronics-inc-announce-acquisition/?utm_source=openai)) In summary, Servotronics is a long-established U.S. industrial precision manufacturer, founded in 1959, with headquarters in New York, a strong servo-valve franchise, and a recent transformative ownership change that shifted it from an independent public company into TransDigm’s aerospace-focused portfolio. ([servotronics.com](https://www.servotronics.com/founder?utm_source=openai))
