UPDATE 1-Ventas plans public offering of shares, senior notes

* To offer 8.5 mln shares, $200 million senior notes

* Plans to use proceeds to repay or buy back debt

* Says offering may modestly reduce FFO per share

* Shares down 3 pct

April 6 (Reuters) - Healthcare real-estate investment trust Ventas Inc (VTR.N) said it plans a public offering of 8.5 million common shares and $200 million of senior notes due 2016, and expects to use the proceeds to pay down or repurchase debt.

Shares of the company were down 3 percent after the bell.

The company expects these transactions to modestly reduce its funds from operations (FFO) per share.

Ventas also said it commenced tender offers to purchase some of its outstanding senior notes.

Banc of America Securities, BMO Capital Markets and KeyBanc Capital Markets are acting as dealer managers for the tender offers, it said.