Edward Sheldon owns shares in Mondi and Prudential. The Motley Fool UK has recommended Prudential. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors. Edward Sheldon, CFA | Monday, 13th July, 2020 | More on: JMAT MNDI MNG See all posts by Edward Sheldon, CFA Image source: Getty Images “This Stock Could Be Like Buying Amazon in 1997” Since the Covid-19 stock market crash, many FTSE 100 shares have rebounded sharply. Plenty of stocks are still well below their 52-week highs though. This suggests there could be further gains to come, assuming the market doesn’t crash again.With that in mind, here’s a look at three cheap FTSE 100 shares that I believe look attractive right now.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…The CEO is buying hereOne that seems very cheap to me right now is Mondi (LSE: MNDI). It’s a leading packaging company that has a focus on sustainable packaging solutions. It sports a P/E ratio of just 11.9, using next year’s consensus earnings per share (EPS) forecast of €1.38.There are a number of things I like about Mondi. Firstly, the company has exposure to growth industries, such as e-commerce. Secondly, the group is committed to sustainability. Third, it’s a highly profitable company. Over the last five years, return on capital employed – a key measure of profitability – has averaged about 18%.One thing that’s caught my attention here is that CEO Andrew King has purchased MNDI shares recently. On 29 June, the insider purchased 15,000 shares at a price of £14.96 per share, boosting his holding by nearly 200%. This suggests King believes the FTSE 100 stock is undervalued.All in all, I think Mondi shares look very attractive right now.This FTSE 100 company is still paying dividendsAnother FTSE 100 share that I think looks cheap right now is M&G (LSE: MNG), the asset management business that was demerged from Prudential last year. It currently trades on a forward-looking P/E ratio of 8.2 using this year’s consensus EPS forecast.In late May, M&G issued an encouraging business update. Not only did the company advise it’s in a position of financial strength, but it also said it would pay out dividends to investors as previously announced. I’m impressed by its commitment to its dividend, given that so many FTSE 100 companies have suspended, or cancelled, their dividends this year.Like Mondi, M&G has also seen some bullish insider transaction activity recently. Back in March, a number of top-level insiders purchased shares, including the CEO, CIO, and chairman. That’s a positive development, in my view.Overall, I see plenty of appeal in M&G. I see the stock as a buy right now.A FTSE stock for the sustainable revolutionFinally, I also like the look of Johnson Matthey (LSE: JMAT) at the moment. It’s an under-the-radar FTSE 100 company that specialises in sustainable technologies, including batteries for electric vehicles and catalytic converters. Its share price is down about 30% this year and the stock currently trades on a forward-looking P/E ratio of about 13.4.Johnson Matthey has been hit hard by Covid-19. Recently, the group announced it booked a £60m charge related to the outbreak and said it would cut 2,500 jobs to cut costs. It also cut its dividend by 50%, bringing an end to its very impressive dividend growth track record (20+ years).I expect the FTSE 100 company to recover though. In a world that’s becoming increasingly focused on sustainability, Johnson Matthey looks well-positioned to succeed. As green technologies are increasingly embraced, the company should benefit.I’d snap up this cheap FTSE 100 stock while it’s out of favour. Our 6 ‘Best Buys Now’ Shares Renowned stock-picker Mark Rogers and his analyst team at The Motley Fool UK have named 6 shares that they believe UK investors should consider buying NOW.So if you’re looking for more stock ideas to try and best position your portfolio today, then it might be a good day for you. Because we’re offering a full 33% off your first year of membership to our flagship share-tipping service, backed by our ‘no quibbles’ 30-day subscription fee refund guarantee. Click here to claim your copy now — and we’ll tell you the name of this Top US Share… free of charge! Stock market crash: 3 cheap FTSE 100 shares I’d buy in July Simply click below to discover how you can take advantage of this. Enter Your Email Address I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. I’m sure you’ll agree that’s quite the statement from Motley Fool Co-Founder Tom Gardner.But since our US analyst team first recommended shares in this unique tech stock back in 2016, the value has soared.What’s more, we firmly believe there’s still plenty of upside in its future. In fact, even throughout the current coronavirus crisis, its performance has been beating Wall St expectations.And right now, we’re giving you a chance to discover exactly what has got our analysts all fired up about this niche industry phenomenon, in our FREE special report, A Top US Share From The Motley Fool.