Nine members of the Business Journal’s annual OC’s Wealthiest list were included in the recent Forbes 400 list, which ranks and profiles the wealthiest Americans by estimated net worth.

The Business Journal list, published in August, featured 38 entries, with a minimum net worth of $250 million. The Forbes list had a threshold of $1.55 billion.

Irvine Company Chairman Donald Bren was No. 1 on the Business Journal list with an estimated net worth of $15 billion. Bren made the Forbes list at No. 30, with $15.1 billion in net worth. He was No. 27 on the Forbes list last year.

Igor Olenicoff, founder and owner of Newport Beach-based Olen Properties, was No. 2 on the Business Journal list, with an estimated $3.2 billion in wealth. Forbes ranked Olenicoff at No. 172, based on an estimate of $3.3 billion.

We ranked David Sun and John Tu, co-owners of Fountain Valley-based Kingston Technology Inc., at No. 3, with an estimated $3.1 billion each. Forbes gave Sun and Tu each a boost of $700 million this year, arriving at $4.7 billion each. That was good for the No. 106 seat, up from No. 110 last year.

Forbes ranked Oakley Inc. founder Jim Jannard at No. 199 on its list, with an estimated fortune of $3 billion. Jannard, who founded the Foothill Ranch-based sunglasses company and Irvine-based Red Digital Cinema Camera Co., was No. 5 on the Business Journal list, with an estimated $2.4 billion in wealth. The Business Journal's estimate for Jannard has trailed various other publications since 2012, when he said he had given away a significant portion of his personal fortune.

We had Bill Gross—former chief investment officer of Pacific Investment Management Co. and now a fund manager at Janus Capital Group—tied at No. 5 with Jannard on our August list, with an estimated wealth of $2.4 billion. Forbes pegged Gross’ fortune at $2.3 billion, good for No. 274 on its list.

We also estimated $2.4 billion in wealth for Henry Samueli, cofounder of chipmaker Broadcom Corp. in Irvine. Forbes ranked Samueli up more than 30 spots at No. 294, with $2.2 billion in net worth.

Real estate developer and investor Goerge Argyros was No. 8 on the Business Journal list with $2.1 billion. Forbes had the same estimate for Argyros and ranked him at No. 319.

Henry Nicholas III was a newcomer to the Forbes 400 list this year. The Broadcom cofounder came in at No. 390 with an estimated $1.6 billion. We ranked Nicholas No. 9 with an estimated fortune of $1.7 billion.