12:01 PM EDT, 10/10/2025 (MT Newswires) -- (Updates to include Protagonist Therapeutics' ( PTGX ) recent stock move in the second paragraph.)

Johnson & Johnson ( JNJ ) is in talks to acquire Protagonist Therapeutics ( PTGX ) , The Wall Street Journal reported Friday, citing people familiar with the matter.

Protagonist Therapeutics ( PTGX ) shares jumped 34% in recent Friday trading, following the news.

Johnson & Johnson ( JNJ ) and Protagonist did not immediately reply to requests for comment from MT Newswires.

(Market Chatter news is derived from conversations with market professionals globally. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.)

Price: 191.01, Change: -0.07, Percent Change: -0.04