UPDATE 2-Activist investor Politan plans second proxy battle at Masimo, WSJ reports

(Adds background in paragraph 6 and comments from Masimo's spokesperson in paragraphs 7-8)

March 24 (Reuters) - Activist investor Politan Capital Management, which last year won two seats on the board of medical technology company Masimo Corp, is planning a second proxy battle for two more seats, the Wall Street Journal reported on Sunday.

Politan, which owns 9% of Masimo's shares, plans to nominate two director candidates to Masimo's six-person board, the WSJ reported, citing a person familiar with the matter.

The candidates are William Jellison, former chief financial officer of medical device maker Stryker, and Darlene Solomon, former chief technology officer of Agilent Technologies , the report said.

Politan Capital Management did not immediately respond to a Reuters request for comment.

Quentin Koffey-owned Politan has long criticized Masimo's capital allocation and board oversight and expressed particular concern about last year's $1 billion purchase of consumer audio products maker Sound United.

Masimo said on Friday that it is evaluating a proposed spinoff of its consumer business, which includes its consumer health and audio products.

"Members of the board, including Quentin Koffey, have been a key part of the discussions concerning the separation dating back to January," a Masimo spokesperson said when asked about Politan's reported plans for a new proxy contest.

"The proposed separation is also consistent with the company's prior commitment to reassess the consumer business strategy and structure within three years of the Sound United acquisition, as well as the wishes of shareholders."

(Reporting by Chandni Shah in Bengaluru and additional reporting by Angela Christy, Greg Roumeliotis; Editing by Kim Coghill, Jamie Freed and Sherry Jacob-Phillips)