Jonathan Siegmann Analyst PerformanceManaging Director Aerospace & Defense at Stifel NicolausJonathan Siegmann is a stock analyst at Stifel Nicolaus across a range of sectors, covering 11 publicly traded companies. Over the past year, Jonathan Siegmann has issued 18 stock ratings, including buy and hold recommendations. While full access to Jonathan Siegmann's proprietary MarketBeat Analyst Rating is reserved for MarketBeat All Access subscribers, the rating is updated daily to reflect the most recent analyst activity. This profile highlights Jonathan Siegmann's coverage history, rating activity, and performance tendencies — helping individual investors make more informed trading decisions. Analyst Ratings, Coverage, and Performance StatisticsAnalyst RatingSubscribe to MarketBeat All Access for the analyst's recommendation accuracy rating MarketBeatAverage Return00.00% 12-Month ROISuccess Rate00.00% Profitable RatingsTotal Ratings18 Last 0 YearsBuy Recommendations88.24% 15 Buy RatingsCompanies Covered11 Unique Companies Ratings Distribution17RatingsDistribution of strong buy, buy, hold, and sell ratings by Jonathan Siegmann.RatingPercentageCount Strong Buy0.0%0 ratings Buy88.2%15 ratings Hold11.8%2 ratings Sell0.0%0 ratingsOut of 17 total stock ratings issued by Jonathan Siegmann at Stifel Nicolaus, the majority (88.2%) have been Buy recommendations, followed by 11.8% Hold.Best & Worst CallsThis analyst does not have any ratings with enough history to determine best and worst calls.Exchange CoverageExchangePercentageCountNYSE81.8% of companies on NYSE9 companiesNASDAQ18.2% of companies on NASDAQ2 companiesJonathan Siegmann, an analyst at Stifel Nicolaus, currently covers 11 companies listed on NYSE and NASDAQ, with the majority traded on NYSE.Coverage FocusSector IconSectorPercentageAerospace5 companies45.5%Computer and Technology3 companies27.3%Business Services3 companies27.3%Jonathan Siegmann of Stifel Nicolaus specializes in stock coverage within the Aerospace sector, with additional focus on Computer and Technology and Business Services companies.Coverage IndustriesIndustryPercentageAEROSP/DEF EQ5 companies45.5%TECHNOLOGY SERVICES2 companies18.2%COMPUTER INTEGRATED SYSTEMS DESIGN1 company9.1%COMP - SERVICES1 company9.1%CONSULTING1 company9.1%IT SERVICES1 company9.1% About Jonathan SiegmannJonathan Siegmann joined Stifel in 2025 and serves as a Managing Director covering the aerospace and defense industry. Most recently, he was engaged in the new space industry and served as Senior Vice President of Corporate Development at Terran Orbital Corporation, which was sold to Lockheed Martin in 2024. Before that, Jonathan spent nearly 15 years at Fidelity Investments as Portfolio Manager and Equity Research Analyst, covering public and private North American aerospace, defense, and new space companies. Jonathan received a BS from Rensselaer Polytechnic Institute and an MBA from New York University’s Stern School of Business and is a Chartered Financial Analyst® holder from the CFA Institute.Follow on LinkedIn Jonathan Siegmann's Ratings History at Stifel Nicolaus Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years 4 Years 5 Years All Time Timeframe Start Date End Date All Ratings Strong Buy Buy Hold Sell Rating Recommendation ROI is the percentage between the price on the Report Date to the price 12 months after the report date.Available with a MarketBeat All Access Subscription12-Month ROIUpgrade to All Access to use the All ROI Filter Export to Excel CompanyReport DateActionReport Date Price12-MonthPrice TargetRating12-MonthPrice & ROIDetailsSAICScience Applications International9/5/2025Lower Price Target$106.22$128.00Buy$0.0000.00% ROIHEIHeico8/26/2025Set Price Target$332.98$360.00$0.0000.00% ROICACICACI International8/8/2025Boost Price Target$495.49$600.00Buy$0.0000.00% ROIVVXV2X8/5/2025Set Price Target$48.82$63.00Buy$0.0000.00% ROIBAHBooz Allen Hamilton7/28/2025Boost Price Target$113.13$119.00Hold$0.0000.00% ROIKTOSKratos Defense & Security Solutions7/21/2025Boost Price Target$59.12$70.00Buy$0.0000.00% ROIKTOSKratos Defense & Security Solutions7/3/2025Set Price Target$44.53$54.00Buy$0.0000.00% ROIAVAVAeroVironment6/24/2025Initiated Coverage$191.23$240.00Buy$0.0000.00% ROIKTOSKratos Defense & Security Solutions6/24/2025Initiated Coverage$43.63$52.00Buy$0.0000.00% ROITDYTeledyne Technologies6/24/2025Initiated Coverage$491.11$626.00Buy$0.0000.00% ROIVVXV2X6/24/2025Initiated Coverage$45.75$55.00Buy$0.0000.00% ROITDGTransdigm Group6/24/2025Initiated Coverage$1,471.93$1,710.00Buy$0.0000.00% ROISAICScience Applications International6/24/2025Initiated Coverage$104.21$130.00Buy$0.0000.00% ROIPSNParsons6/24/2025Initiated Coverage$66.43$81.00Buy$0.0000.00% ROILDOSLeidos6/24/2025Set Price Target$150.79$178.00Buy$0.0000.00% ROIHEIHeico6/24/2025Set Price Target$319.64$352.00Buy$0.0000.00% ROICACICACI International6/24/2025Initiated Coverage$458.67$576.00Buy$0.0000.00% ROIBAHBooz Allen Hamilton6/24/2025Initiated Coverage$100.71$112.00Hold$0.0000.00% ROI Stock Forecasts and Research Tools Today's Ratings U.S. Ratings U.K. Ratings Canadian Ratings All Upgrades All Downgrades All Initiations All Price Target Changes Top-Rated Stocks Top Rated Stocks Top-Rated Dividend Stocks Top-Rated Small-Cap Stocks Top-Rated Tech Stocks Most-Upgraded Stocks Most-Downgraded Stocks Lowest-Rated Stocks More Ratings Tools Stock Ratings by Issuer Top-Rated Analysts Top-Rated Brokerages Stock Ratings Screener Free Ratings Newsletter Price Forecasts for Popular Stocks Alphabet (Google) Stock ForecastAmazon Stock ForecastApple Stock ForecastMeta (Facebook) Stock ForecastMicrosoft Stock ForecastNetflix Stock ForecastNvidia Stock ForecastTesla Stock Forecast Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. 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