Hamamatsu Photonics KK : Notice on Status of Purchase of Treasury Shares

Date: Jan 9, 2018

Company name: Hamamatsu Photonics K.K.

Stock code: 6965 Tokyo Stock Exchange, First Section Representative: Akira Hiruma,

President and Chief Executive Officer

Contact: Kazuhiko Mori,

Director and General Manager of Accounting Div. (Phone: [phone])

Notice on Status of Purchase of Treasury Shares

(Purchase of treasury shares in accordance with provisions of Articles of Incorporation based on

provisions of Article 165, Paragraph 2 of Companies Act)

Hamamatsu Photonics K.K. announces the status of transactions as indicated below in relation to the purchase of treasury shares in accordance with the provisions of Article 156 of Companies Act, which is applied alternatively in accordance with Article 165, Paragraph 3 of said Act, announced on Nov 13, 2017.

Description

1.	Type of stock purchased	Company common stock
2.	Total number of shares purchased	892,200 shares
3.	Total stock purchase value	3,382,640,982 yen
4.	Purchase method	Market purchases at the Tokyo Stock Exchange
5.	Stock purchase period	Dec 1, 2017 through Dec 31, 2017 (based on agreement)

(Reference)

1. Details of resolution at the Board of Directors meeting held on Nov 13, 2017

(1) Type of stock subject to purchase	Company common stock
(2) Total number of shares available for purchase	3 million shares (maximum)
(3) Total stock purchase value	10 billion yen (maximum)
(4) Stock purchase period	Nov 14, 2017 through Mar 23, 2018
(5) Purchase method	Market purchases at the Tokyo Stock Exchange

2. Total number of treasury shares purchased in accordance with the abovementioned Board of Directors' resolution

(as of Dec 31,2017)

• (1) Total number of shares purchased

• (2) Total stock purchase value

1,406,800 shares 5,413,665,479 yen