Taking stock: Here's why Mukesh Ambani and Lowell C McAdam's worth went up this week.

Here's a round-up of those whose worth went up or down today, Mukesh Ambani (Up), Lowell C McAdam (Up) and Shigehisa Takada (Down).

Mukesh Ambani (Up)

Reliance Jio to use Rs 4,500 crore of funding to buy Wi-Fi signal emitting devices from Samsung Electronics and Ace Technologies Corporation.

Lowell C McAdam; CEO, Verizon Communications (Up)

The US wireless company has announced the acquisition of the internet giant AOL. The deal is worth $4.4 billion.

Shigehisa Takada; Chairman and CEO, Takata Corporation (Down)

Due to the problems caused by defective airbags supplied by Takata, Toyota and Nissan recall 6.5 million vehicles.