Company got bought?

[RetireJapan]

In October 2016 I bought a bunch of small Japanese companies. Didn't do much research, just found a number with a reasonable dividends and seemingly good stats.

The timing was great, as they were all lifted by the rising tide and as a group have done pretty well.

Yesterday I got an interesting letter. Apparently one of my picks (鈴縫工業 1846 東証, bought at 211 yen) has been bought by a company called Asahi. Checking my Rakuten account, my shares are gone. The letter was to inform me that they will send me 390 yen a share, and to ask for my bank account details.

This is the first time this has happened to me. Is it common here? What are the tax implications? The shares were in a 特定 tax withholding account.

[sutebayashi]

I am just interested that you can get told your shares were sold without you knowing until after the fact.

I imagine there must have been some kind of shareholders meeting to approve this, before it happened.

[RetireJapan]

To be fair, I pay very little attention to my holdings...

[StockBeard]

What are the tax implications? The shares were in a 特定 tax withholding account.

Without more details I would assume that either:
1) The tax witholding did happen at the time of sale, and you would see that in whatever report they send you... (do they send anything... ?)
2) The tax witholding did not happen with this being an uncommon case, in which case I assume you'll have to declare the capital gain in your tax return next year.