 After the last few trading sessions, with the markets taking a nose-dive, investors can be excused for wondering if theyre doing something wrong. Theyre not. Markets run in cycles, and are sensitive to Black Swan events, two factors that are on market watchers minds.The economic expansion is in its eleventh year, a record streak. But with that longevity comes the worry how much longer can this last? As for the Black Swans, the unpredictable events that hit the market but no one saw coming, one is in play right now. The coronavirus outbreak emerging from China and now cropping up around the world is disrupting trade and travel, with governments imposing quarantines and travel restrictions to try and cope as health officials warn that a pandemic could be on the horizon.This all just brings us back to the question: how do you find investment-grade stocks in a volatile market? There isnt one sure answer; plenty of investment strategies can steer you toward profits. But there is one possibility that might make investing easier just follow the insiders.Insiders the corporate officers, board members, and others in the know dont just manage the companies, they know the details. Legally, they are not supposed to trade that knowledge, or to blatantly trade on it, and disclosure rules by government regulators help to keep the insiders honest. Their honest stock transactions, however, can be highly informative. These are the people with the deepest knowledge of particular stocks. So, when they buy or sell, especially in bulk, take note!TipRanks has the tools to help you do just that. The Insiders Hot Stocks page shows which stocks top insiders are most active on, for both purchases and sales. You can sort insider trades by a variety of filters, including trading strategy. Weve done some of the legwork for you, and pulled up three stocks with recent informative buy-side transactions. Here are the results.Bunge, Ltd. BGThe first stock well look at is Bunge, a global player in the food and agriculture market. Bunge works with oilseeds and grains used to make high-protein feed for livestock, as well as edible oils for commercial customers. The company buys and sells, stores, transports, and processes the raw materials for the end products. In addition, Bunge has operations in the sugar business, with sugarcane, wheat, and corn growing operations, mills, and ethanol processing facilities.Bunges niche is a profitable one, and it has consistently beaten earnings expectations over the past four quarters. The companys Q4 beat, reporting EPS of 1.27 against a 22-cent forecast, was particularly strong. Consensus for the next report, due in the spring, is for 82 cents EPS.Bunge also offers investors a nice dividend. The payment, of 50 cents quarterly, annualizes to 2, and gives a yield of 4.3. Not to mention BGs dividend history is reliable, 18 years long and going strong.In recent days, no fewer than four insiders have made informative purchases on BG stock. These insiders include the CEO, CFO, and a member of the companys Board of Directors all high-level officers. Their transactions range in size from 3,750 shares worth over 199,000 to 37,000 shares now worth almost 2 million. Stock purchases on this level are more than just adjusting holdings for compensation purposes. And it gives BG stock a very positive confidence signal.This becomes clear when we consult with the analysts. 5-star analyst Kenneth Zaslow writes about BG for BMO Capital, saying, BGs EPS of 1.27 far exceeded consensus, as risk management, plant optimization, asset sales, and efficiency programs enabled BG to capture select opportunities, higher crush volumes, improved utilization rates, and strong oil margins... We are designating BG as our Top Pick for 2020...Zaslow backs his Buy rating with a 72 price target, implying an upside potential of 53. To watch Zaslows track record, click hereEven with just one recent Buy rating, BG shares are still looking strong. The stocks average price target of 67 suggests a 43 upside from the share price of 46.87. See Bunge stock analysis on TipRanks Simply Good Foods Company SMPLNext up is food and snack company Simply Good Foods, a mid-cap player formed just three years ago as the fruit of a corporate merger. It operates in the states of Connecticut and Colorado, offering a range of nutritional snack foods including confectionery products, ready-to-drink shakes, and nutrition bars.SMPL released its fiscal Q1 results last month, and showed its third earnings beat in the last four quarters. EPS was 4.7 above estimates, at 22 cents, while revenue reflected a 26 annual gain and was reported at 152.15 million.Two of SMPLs board members have bought heavily into the stock this month. The buys range from 10,000 shares to 89,000, and the dollar amounts range from 229,700 to 1.99 million. These purchases are interesting considering the companys recent acquisition of a competitor. SMPL paid out 1 billion in cash and credit to buy Quest Nutrition. Despite adding some 460 million to its loan balance, SMPL was still able to post impressive quarterly results. Its a piece of public information that helps to underline the Directors confidence.Wall Street is also confident in this company. Writing from Wells Fargo, 4-star analyst John Baumgartner says, ...we see an increasingly favorable 12-month riskreward. We reiterate our thesis that FY20 revenue is setting up for a beat-and-raise path for both legacy Atkins and Quest...Baumgartner places a Buy rating here, along with a 35 price target that indicates room for 59 upside growth. To watch Baumgartners track record, click hereDeutsche Banks Faiza Alwy is also bullish. Alwy writes, ...solid trends in core bar and confection categories are helping drive robust growth. For legacy Atkins, this growth is entirely driven by velocity and attracting new consumers to the category who are focused on healthy eating a trend that seems poised to continue longer-term.Alwys price target of 32 implies a 45 possible upside to back a Buy rating. To watch Alwys track record, click hereWith 3 recent Buy-side ratings, SMPL gets a Strong Buy rating from the analyst consensus. Shares are selling for 22.06, and the 33 average price target suggests an upside growth potential of 50. See Simply Good Foods stock analysis on TipRanks AquaBounty Technologies, Inc. AQBLast on our list today is a dollar stock. AquaBounty, based in Massachusetts, is a biotech company that focuses on genetically modified fish for farming. In short, AQB develops faster growing fish to make fish farming both more productive and more profitable. The companys salmon has been approved for sale by both the US and Canadian governments. AquaBounty is also working on trout and tilapia strains.Earlier this month, the company announced a drive to raise capital through a sale of common stock. The offering was for 9 million shares at 1.50 each. A few days later, board member Randal Kirk purchased over 5 million shares at 1.50. Kirk is a 10-plus owner of the company. An informative buy, indeed Kirks purchase can be taken as a signal of confidence.AQB wont report Q4 earnings until next week, but in Q3, the company beat the forecast by 22. Looking ahead, the consensus is for continued improvement at the bottom line, as the companys net loss moderates to just 1 cent per share.AquaBounty has only one recent analyst review, by Ben Klieve of National Research. Klieves 5 price target on the stock shows the degree of his confidence: it implies an upside growth potential of 184 for AQB. Thats a fast-growing fish. To watch Klieves track record, click hereKlieve writes of the stock, We believe in advance of its first harvest that the company will be able to formally announce customers are in hand, which we believe will not only better enable expansion but will also be a significant catalyst for the stock. See AQB price targets and analyst ratings on TipRanks 