 ARK Investment Management, the disruptive innovation firm founded by Catherine Wood Trades, Portfolio, disclosed in a regulatory filing that its top five trades during the third quarter included boosts to its holdings in Shopify Inc. SHOP , Financial and Gingko Bioworks DNA , Financial and reductions of its holdings in Signify Health SGFY , Financial, Spotify Technology SA SPOT , Financial and Stratasys Ltd. SSYS , Financial. 