Exhibit (a)(1)(v)
Offer To Purchase For Cash
All Outstanding Shares of Common Stock
of
CASCADIAN THERAPEUTICS, INC.
at
$10.00 Net Per Share In Cash
Pursuant to the Offer to Purchase dated February 8, 2018
by
VALLEY ACQUISITION SUB, INC.,
a wholly owned subsidiary of
![LOGO](https://capedge.com/proxy/SC TO-T/0001193125-18-036461/g525966g94k99.jpg)
SEATTLE GENETICS, INC.
THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON MARCH 9, 2018 (ONE MINUTE AFTER 11:59 P.M., NEW YORK CITY TIME, ON MARCH 8, 2018), UNLESS THE OFFER IS EXTENDED (SUCH DATE AND TIME, AS IT MAY BE EXTENDED, THE “EXPIRATION DATE”).
February 8, 2018
To Our Clients:
Enclosed for your consideration are the Offer to Purchase, dated February 8, 2018 (as it may be amended or supplemented from time to time, the “Offer to Purchase”), and the related Letter of Transmittal (as it may be amended or supplemented from time to time, the “Letter of Transmittal” and, together with the Offer to Purchase, the “Offer”) in connection with the offer by Valley Acquisition Sub, Inc., a Delaware corporation (“Purchaser”) and a wholly owned subsidiary of Seattle Genetics, Inc., a Delaware corporation (“Seattle Genetics”) to purchase all of the shares of common stock, par value $0.0001 per share (the “Shares”), of Cascadian Therapeutics, Inc., a Delaware corporation (“Cascadian Therapeutics”), that are issued and outstanding at a price of $10.00 per Share, net to the seller in cash (the “Offer Price”), without interest, less any applicable withholding taxes, upon the terms and subject to the conditions of the Offer.
THE BOARD OF DIRECTORS OF CASCADIAN THERAPEUTICS (THE “CASCADIAN THERAPEUTICS BOARD”) UNANIMOUSLY RECOMMENDS THAT YOU TENDER ALL OF YOUR SHARES INTO THE OFFER.
We or our nominees are the holder of record of Shares held for your account. A tender of such Shares can be made only by us as the holder of record and pursuant to your instructions.The Letter of Transmittal accompanying this letter is furnished to you for your information only and cannot be used by you to tender Shares held by us or our nominees for your account.
We request instructions as to whether you wish us to tender any or all of the Shares held by us or our nominees for your account, upon the terms and subject to the conditions set forth in the enclosed Offer to Purchase and the Letter of Transmittal.
Please note carefully the following:
| 1. | The Offer Price for the Offer is $10.00 per Share, net to you in cash, without interest, less any applicable withholding taxes. |
| 2. | The Offer is being made for all outstanding Shares. |
| 3. | The Offer is being made in connection with the Agreement and Plan of Merger, dated as of January 30, 2018 (as it may be amended or supplemented from time to time in accordance with its terms, the “Merger Agreement”), by |