J2 Global Inc. of Hollywood announced last week that Chief Executive Hemi Zucker will resign on Dec. 31 to become a managing principal of Mid-Wilshire venture capital firm OCV Management.

J2 plans to invest $200 million in OCV as part of its venture strategy. Vivek Shah, chief executive of J2 subsidiary Ziff Davis, will become chief executive after Zucker steps down.

J2 has acquired more than 155 companies under Zucker’s leadership, expanding the firm beyond its core e-fax business to a number of markets such as cloud services, patent licensing and digital media. The firm’s stock price has increased more than 60 percent over the past five years to about $75 a share. It has a market capitalization of about $3.6 billion.

Zucker previously told the Business Journal that he viewed rolling up small competitors as a cost-efficient way to acquire customers. The process varies from company to company, but J2 generally retains support staff and carves out regional leadership roles for executives. The parent firm runs all executives through a training program, which includes lots of face time with a mentor or Zucker. Most executives wind up staying with J2 over the long term and end up in senior roles.

OCV is a venture capital firm launched by J2 board chairman, Richard Ressler.

The venture firm invests $5 million to $40 million in companies that have revenue of more than $2 million along with unique intellectual property for information technology, e-commerce, media and telecommunications, and clean technology; have regulatory traction and substantiated scientific results for life science and health care products or services; or have found a market fit for their products or services.

–Garrett Reim