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AI Earnings Predictions for Biogen Inc. (BIIB)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

+1.22%

$203.64

65% positive prob.

5-Day Prediction

+2.69%

$206.59

65% positive prob.

20-Day Prediction

+6.62%

$214.50

62% positive prob.

Price at prediction: $201.18 Confidence: 29.5% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 6, 2026 · 29% conf.

AI Prediction BUY

1D

+1.22%

$203.64

5D

+2.69%

$206.59

20D

+6.62%

$214.50

Price: $201.18 Prob +5D: 65% AUC: 1.000
0000875045-26-000011

biib-202602060000875045false00008750452026-02-062026-02-06

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): February 6, 2026

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 February 6, 2026, Biogen Inc. issued a press release announcing its results of operations and financial condition for the fourth quarter and year ended December 31, 2025. 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 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 99.1Biogen's press release dated February 6, 2026

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: February 6, 2026

2025
Q4

Q4 2025 Earnings

8-K BUY

Jan 14, 2026 · 29% conf.

AI Prediction BUY

1D

+1.22%

$203.64

5D

+2.69%

$206.59

20D

+6.62%

$214.50

Price: $201.18 Prob +5D: 65% AUC: 1.000
0000875045-26-000003

biib-202601130000875045false00008750452026-01-132026-01-13

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): January 13, 2026

Biogen Inc. (Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 Not Applicable (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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 Biogen Inc. (Biogen) expects that its GAAP and non-GAAP results for the fourth quarter of 2025 will include acquired in-process research and development, upfront and milestone expense of approximately $222 million on a pre-tax basis. The estimated charge is expected to impact GAAP and non-GAAP net income per diluted share for the fourth quarter 2025 by approximately $1.26 per share.

During the first quarter of 2025 we began presenting acquired in-process research and development, upfront and milestone expense as a separate line item in our condensed consolidated statements of income. Acquired in-process research and development, upfront and milestone expense includes costs incurred in connection with collaboration and license agreements such as upfront and milestone payments and, when applicable, premiums on equity securities and asset acquisitions of acquired in-process research and development. Biogen does not forecast such acquired in-process research and development, upfront and milestone expense due to the uncertainty of the future occurrence, magnitude and timing of these transactions in any given period.

Results for the quarter ended December 31, 2025, have not been finalized and are subject to our financial statement closing procedures. There can be no assurance that our final results will not differ from the preliminary unaudited estimates described herein.

Note Regarding Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements relating to our financial and operating results and financial guidance, that are being made pursuant to the provisions of the Private Securities Litigation Reform Act of 1995 (the PSLRA) with the intention of obtaining the benefits of the “Safe Harbor” provisions of the PSLRA. These forward-looking statements may be accompanied by such words as “aim,” “anticipate,” "assume," “believe,” “contemplate,” “continue," "could," “estimate,” “expect,” “forecast,” “goal,” “guidance,” “hope,” “intend,” “may,” “objective,” "outlook," “plan,” “possible,” "potential," “predict,” “project,” “should,” “target,” “will,” “would” or the negative of these words or other words and terms of similar meaning.

Given their forward-looking nature, these statements involve substantial risks and uncertainties and may be based on inaccurate assumptions and could cause actual results to differ materially from those reflected in such statements. The information above includes, among others, forward-looking statements reflecting management’s current intentions and expectations for the future with respect to Biogen’s estimated acquired in-process research and development, upfront and milestone expense for the quarter ended December 31, 2025, and the related impact to Biogen’s GAAP and non-GAAP earnings per share for such period. These forward-looking statements are based on management's current beliefs and ass

2025
Q3

Q3 2025 Earnings

8-K

Oct 30, 2025

0000875045-25-000047

biib-202510300000875045false00008750452025-10-302025-10-30

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 30, 2025

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 30, 2025, Biogen Inc. issued a press release announcing its results of operations and financial condition for the third quarter ended September 30, 2025. 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 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 99.1Biogen's press release dated October 30, 2025

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: October 30, 2025

2025
Q3

Q3 2025 Earnings

8-K

Oct 14, 2025

0000875045-25-000040

biib-202510140000875045false00008750452025-10-142025-10-14

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 14, 2025

Biogen Inc. (Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 Not Applicable (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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 Biogen Inc. (Biogen) expects that its GAAP and non-GAAP results for the third quarter of 2025 will include acquired in-process research and development, upfront and milestone expense of approximately $2 million on a pre-tax basis. The estimated charge is expected to impact GAAP and non-GAAP net income per diluted share for the third quarter 2025 by approximately ($0.01) per share.

During the first quarter of 2025 we began presenting acquired in-process research and development, upfront and milestone expense as a separate line item in our condensed consolidated statements of income. Acquired in-process research and development, upfront and milestone expense includes costs incurred in connection with collaboration and license agreements such as upfront and milestone payments and, when applicable, premiums on equity securities and asset acquisitions of acquired in-process research and development. Biogen does not forecast such acquired in-process research and development, upfront and milestone expense due to the uncertainty of the future occurrence, magnitude and timing of these transactions in any given period.

Results for the quarter ended September 30, 2025, have not been finalized and are subject to our financial statement closing procedures. There can be no assurance that our final results will not differ from the preliminary unaudited estimates described herein.

Note Regarding Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements relating to our financial and operating results and financial guidance, that are being made pursuant to the provisions of the Private Securities Litigation Reform Act of 1995 (the PSLRA) with the intention of obtaining the benefits of the “Safe Harbor” provisions of the PSLRA. These forward-looking statements may be accompanied by such words as “aim,” “anticipate,” "assume," “believe,” “contemplate,” “continue," "could," “estimate,” “expect,” “forecast,” “goal,” “guidance,” “hope,” “intend,” “may,” “objective,” "outlook," “plan,” “possible,” "potential," “predict,” “project,” “should,” “target,” “will,” “would” or the negative of these words or other words and terms of similar meaning.

Given their forward-looking nature, these statements involve substantial risks and uncertainties and may be based on inaccurate assumptions and could cause actual results to differ materially from those reflected in such statements. The information above includes, among others, forward-looking statements reflecting management’s current intentions and expectations for the future with respect to Biogen’s estimated acquired in-process research and development, upfront and milestone expense for the quarter ended September 30, 2025, and the related impact to Biogen’s GAAP and non-GAAP earnings per share for such period. These forward-looking statements are based on management's current beliefs and ass

2025
Q2

Q2 2025 Earnings

8-K

Jul 31, 2025

0000875045-25-000035

biib-202507310000875045false00008750452025-07-312025-07-31

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): July 31, 2025

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 July 31, 2025, Biogen Inc. issued a press release announcing its results of operations and financial condition for the second quarter ended June 30, 2025. 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 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 99.1Biogen's press release dated July 31, 2025

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: July 31, 2025

2025
Q2

Q2 2025 Earnings

8-K

Jul 7, 2025

0000875045-25-000027

biib-202507070000875045false00008750452025-07-072025-07-07

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): July 7, 2025

Biogen Inc. (Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 Not Applicable (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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 Biogen Inc. (Biogen) expects that its GAAP and non-GAAP results for the second quarter of 2025 will include acquired in-process research and development, upfront and milestone expense of approximately $46 million on a pre-tax basis. The estimated charge is expected to impact GAAP and non-GAAP net income per diluted share for the second quarter 2025 by approximately ($0.26) per share.

During the first quarter of 2025 we began presenting acquired in-process research and development, upfront and milestone expense as a separate line item in our condensed consolidated statements of income. Acquired in-process research and development, upfront and milestone expense includes costs incurred in connection with collaboration and license agreements such as upfront and milestone payments and, when applicable, premiums on equity securities and asset acquisitions of acquired in-process research and development. Biogen does not forecast such acquired in-process research and development, upfront and milestone expense due to the uncertainty of the future occurrence, magnitude, and timing of these transactions in any given period.

Results for the quarter ended June 30, 2025, have not been finalized and are subject to our financial statement closing procedures. There can be no assurance that our final results will not differ from the preliminary unaudited estimates described herein.

Note Regarding Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements relating to our financial and operating results and financial guidance, that are being made pursuant to the provisions of the Private Securities Litigation Reform Act of 1995 (the PSLRA) with the intention of obtaining the benefits of the “Safe Harbor” provisions of the PSLRA. These forward-looking statements may be accompanied by such words as “aim,” “anticipate,” "assume," “believe,” “contemplate,” “continue," "could," “estimate,” “expect,” “forecast,” “goal,” “guidance,” “hope,” “intend,” “may,” “objective,” "outlook," “plan,” “possible,” "potential," “predict,” “project,” “should,” “target,” “will,” “would” or the negative of these words or other words and terms of similar meaning.

Given their forward-looking nature, these statements involve substantial risks and uncertainties and may be based on inaccurate assumptions and could cause actual results to differ materially from those reflected in such statements. The information above includes, among others, forward-looking statements reflecting management’s current intentions and expectations for the future with respect to Biogen’s estimated acquired in-process research and development, upfront and milestone expense for the quarter ended June 30, 2025, and the related impact to Biogen’s GAAP and non-GAAP earnings per share for such period. These forward-looking statements are based on management's current beliefs and assumptions a

2025
Q1

Q1 2025 Earnings

8-K

May 1, 2025

0000875045-25-000014

biib-202505010000875045false00008750452025-05-012025-05-01

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): May 1, 2025

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 May 1, 2025, Biogen Inc. issued a press release announcing its results of operations and financial condition for the first quarter ended March 31, 2025. 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 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 99.1Biogen's press release dated May 1, 2025

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: May 1, 2025

2024
Q4

Q4 2024 Earnings

8-K

Feb 12, 2025

0000875045-25-000004

biib-202502120000875045false00008750452025-02-122025-02-12

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): February 12, 2025

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 February 12, 2025, Biogen Inc. issued a press release announcing its results of operations and financial condition for the fourth quarter and year ended December 31, 2024. 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 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 99.1Biogen's press release dated February 12, 2025

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: February 12, 2025

2024
Q3

Q3 2024 Earnings

8-K

Oct 30, 2024

0000875045-24-000030

biib-202410300000875045false00008750452024-10-302024-10-30

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 30, 2024

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 30, 2024, Biogen Inc. issued a press release announcing its results of operations and financial condition for the third quarter ended September 30, 2024. 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 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 99.1Biogen's press release dated October 30, 2024

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: October 30, 2024

2024
Q2

Q2 2024 Earnings

8-K

Aug 1, 2024

0000875045-24-000022

biib-202408010000875045false00008750452024-08-012024-08-01

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): August 1, 2024

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 August 1, 2024, Biogen Inc. issued a press release announcing its results of operations and financial condition for the second quarter ended June 30, 2024. 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 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 99.1Biogen's press release dated August 1, 2024

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: August 1, 2024

2024
Q1

Q1 2024 Earnings

8-K

Apr 24, 2024

0000875045-24-000012

biib-202404240000875045false00008750452024-04-242024-04-24

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): April 24, 2024

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 April 24, 2024, Biogen Inc. issued a press release announcing its results of operations and financial condition for the first quarter ended March 31, 2024. 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 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 99.1Biogen's press release dated April 24, 2024

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: April 24, 2024

2023
Q4

Q4 2023 Earnings

8-K

Feb 13, 2024

0000875045-24-000004

biib-202402130000875045false00008750452024-02-132024-02-13

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): February 13, 2024

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 February 13, 2024, Biogen Inc. issued a press release announcing its results of operations and financial condition for the fourth quarter and year ended December 31, 2023. 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 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 99.1Biogen's press release dated February 13, 2024

104Cover 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/ Wendell Taylor Wendell Taylor Secretary

Date: February 13, 2024

2023
Q3

Q3 2023 Earnings

8-K

Nov 8, 2023

0000875045-23-000035

biib-202311080000875045false00008750452023-11-082023-11-08

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): November 8, 2023

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 November 8, 2023, Biogen Inc. issued a press release announcing its results of operations and financial condition for the third quarter ended September 30, 2023. 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 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 99.1Biogen's press release dated November 8, 2023

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: November 8, 2023

2023
Q2

Q2 2023 Earnings

8-K

Jul 25, 2023

0000875045-23-000027

biib-202307250000875045false00008750452023-07-252023-07-25

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): July 25, 2023

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 July 25, 2023, Biogen Inc. issued a press release announcing its results of operations and financial condition for the second quarter ended June 30, 2023. 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 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 99.1Biogen's press release dated July 25, 2023

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: July 25, 2023

2023
Q1

Q1 2023 Earnings

8-K

Apr 25, 2023

0000875045-23-000012

biib-202304250000875045false00008750452023-04-252023-04-25

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): April 25, 2023

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 April 25, 2023, Biogen Inc. issued a press release announcing its results of operations and financial condition for the first quarter ended March 31, 2023. 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 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 99.1Biogen's press release dated April 25, 2023

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: April 25, 2023

2022
Q4

Q4 2022 Earnings

8-K

Feb 15, 2023

0000875045-23-000005

biib-202302150000875045false00008750452023-02-152023-02-15

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): February 15, 2023

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 February 15, 2023, Biogen Inc. issued a press release announcing its results of operations and financial condition for the fourth quarter and year ended December 31, 2022. 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 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 99.1Biogen's press release dated February 15, 2023

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: February 15, 2023

2022
Q3

Q3 2022 Earnings

8-K

Oct 25, 2022

0000875045-22-000028

biib-202210250000875045false00008750452022-10-252022-10-25

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 25, 2022

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 25, 2022, Biogen Inc. issued a press release announcing its results of operations and financial condition for the third quarter ended September 30, 2022. 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 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 99.1Biogen's press release dated October 25, 2022

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: October 25, 2022

2022
Q2

Q2 2022 Earnings

8-K/A

Jul 20, 2022

0000875045-22-000023

biib-202207200000875045false00008750452022-07-202022-07-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 20, 2022

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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.

Earlier today, July 20, 2022, Biogen Inc. (the "Company") issued a press release announcing its results of operations and financial condition for the second quarter ended June 30, 2022, and furnished a copy of the press release as Exhibit 99.1 to a Current Report on Form 8-K filed by the Company (the "Original Report"). This Current Report on Form 8-K/A amends the Original Report on Form 8-K solely to correct a typographical error in the dates appearing in the header of the second table on page 11 of the press release furnished with the Original Report. A copy of the revised press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K/A report to item 2.02, and is incorporated herein by reference. The revised press release 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 9.01    Financial Statements and Exhibits.

(d)    Exhibits The exhibits listed below are furnished as part of this Current Report on Form 8-K/A.

Exhibit No.Description 99.1Biogen's press release dated July 20, 2022

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: July 20, 2022

2022
Q2

Q2 2022 Earnings

8-K

Jul 20, 2022

0000875045-22-000020

biib-202207200000875045false00008750452022-07-202022-07-20

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): July 20, 2022

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 July 20, 2022, Biogen Inc. issued a press release announcing its results of operations and financial condition for the second quarter ended June 30, 2022. 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 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 99.1Biogen's press release dated July 20, 2022

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: July 20, 2022

2022
Q1

Q1 2022 Earnings

8-K

May 3, 2022

0000875045-22-000013

biib-202205030000875045false00008750452022-05-032022-05-03

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): May 3, 2022

BIOGEN INC.

(Exact name of registrant as specified in its charter)

Delaware0-1931133-0112644 (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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0005 par valueBIIBThe 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 May 3, 2022, Biogen Inc. issued a press release announcing its results of operations and financial condition for the first quarter ended March 31, 2022. 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 5.02    Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On May 3, 2022, Biogen Inc. (the "Company") announced that it had begun a search for a new Chief Executive Officer ("CEO"). The Company has agreed with its current CEO, Michel Vounatsos, that he will continue to serve as CEO during the interim period, receiving the same compensation and benefits, as well as pro-rated vesting of equity awards, for the period he is CEO. Mr. Vounatsos will remain on the Board of Directors of Biogen until he steps down from his CEO position. 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 10.1Letter regarding employment arrangement of Michel Vounatsos dated May 2, 2022

99.1Biogen's press release dated May 3, 2022

104Cover 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/ Wendell Taylor Wendell Taylor Assistant Secretary

Date: May 3, 2022

About Biogen Inc. (BIIB) Earnings

This page provides Biogen Inc. (BIIB) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on BIIB's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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