So that makes 7 in total?

https://www.reuters.com/business/meta-hires-four-more-openai-researchers-information-reports-2025-06-28/
>Meta hires four more OpenAI researchers, The Information reports
>
>June 28 (Reuters) - Meta Platforms is hiring four more OpenAI artificial intelligence researchers, The Information reported on Saturday. The researchers, Shengjia Zhao, Jiahui Yu, Shuchao Bi and Hongyu Ren have each agreed to join, the report said, citing a person familiar with their hiring.

Earlier:

https://www.reuters.com/business/meta-hires-three-openai-researchers-wsj-reports-2025-06-26/
> Meta poaches three OpenAI researchers, WSJ reports
>
>June 25 (Reuters) - [...] Meta hired Lucas Beyer, Alexander Kolesnikov and Xiaohua Zhai, who were all working at the ChatGPT-owner's Zurich office, the WSJ reported, citing sources.