Key TakeawaysActivist investor Starboard Value reportedly has taken a large stake in consumer health care products maker Kenvue.The Wall Street Journal and Reuters say it's unclear how big the investment is, although the Journal says it's a "sizable stake."Starboard founder and CEO Jeff Smith is expected to discuss the hedge fund's plans for Kenvue at an investor conference tomorrow. Shares of Kenvue (KVUE) took off Monday morning on indications activist investor Starboard Value has taken a large stake in t ...