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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): October 21, 2020
BIOGEN INC.
(Exact name of registrant as specified in its charter)

Delaware | 0-19311 | 33-0112644
(State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.)

225 Binney Street, Cambridge, Massachusetts 02142
(Address of principal executive offices; Zip Code)
Registrant’s telephone number, including area code: (617) 679-2000
(Former name or former address, if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
Common Stock, $0.0005 par value |  | BIIB |  | The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
☐ Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.
On October 21, 2020, Biogen Inc. (the "Company") issued a press release announcing its results of operations and financial condition for the third quarter ended September 30, 2020. A copy of the press release is furnished as Exhibit 99.1 and is incorporated herein by reference.
The press release is being furnished pursuant to Item 2.02 of this Current Report on Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that Section, nor shall such document be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act.
Item 8.01 Other Events.
On October 20, 2020, the Board of Directors of the Company authorized a program to repurchase up to $5.0 billion of the Company’s common stock (the “2020 Share Repurchase Program”). The 2020 Share Repurchase Program does not have an expiration date. All share repurchases under the 2020 Share Repurchase Program will be retired.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
The exhibits listed below are furnished as part of this Current Report on Form 8-K.

Exhibit No. | Description
99.1 | Biogen's press release dated October 2 1, 2020
104 | Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
BIOGEN INC.
By: /s/ Suzanne Murray
Suzanne Murray
Corporation Counsel and Assistant Secretary
Date: October 21, 2020