Biogen (NASDAQ: BIIB) awards 1,505 RSUs to company director

Rhea-AI Filing Summary

Patolawala Monish D reported acquisition or exercise transactions in this Form 4 filing.

BIOGEN INC. director Monish D. Patolawala received an equity grant of 1,505 shares of Common Stock as a compensation award at no cost. Following this award, he directly holds 5,215 shares. The restricted stock units vest on the earlier of the next annual meeting or the anniversary of the June 9, 2026 grant date.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Patolawala Monish D

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,505	$0.00	--

Holdings After Transaction: Common Stock — 5,215 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Equity grant: 1,505 shares Holdings after grant: 5,215 shares Grant price per share: $0.0000 per share +1 more

4 metrics

Equity grant 1,505 shares Common Stock grant on June 9, 2026

Holdings after grant 5,215 shares Total direct Common Stock holdings following transaction

Grant price per share $0.0000 per share Compensation award, not a market purchase

Vesting reference date June 9, 2026 RSUs vest at next annual meeting or this anniversary

Key Terms

restricted stock units, Common Stock, grant, award, or other acquisition

3 terms

restricted stock units financial

"The restricted stock units vest on the earlier of (i) the next annual meeting"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Patolawala Monish D

(Last) (First) (Middle)

225 BINNEY

(Street)

CAMBRIDGE MASSACHUSETTS 02142

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BIOGEN INC. [ BIIB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/09/2026		A		1,505(1)	A	$0	5,215	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The restricted stock units vest on the earlier of (i) the next annual meeting or (ii) the anniversary of the date of grant of June 9, 2026.

	/s/ Wendell Taylor, attorney-in-fact for Mr. Patolawala	06/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Biogen (BIIB) director Monish D. Patolawala report in this Form 4?

He reported receiving an equity grant of 1,505 shares of Biogen Common Stock as a compensation award. This non-cash grant increased his direct holdings to 5,215 shares after the transaction was recorded.

Was the Biogen (BIIB) insider transaction a market purchase or sale?

The transaction was not a market trade. It was coded as an acquisition due to a grant or award, meaning shares were granted as compensation rather than bought or sold on the open market.

How many Biogen (BIIB) shares does Monish D. Patolawala now hold?

After the award, Monish D. Patolawala directly holds 5,215 shares of Biogen Common Stock. This total includes the 1,505 shares granted in the reported transaction as part of his director compensation.

What are the vesting terms of the Biogen (BIIB) restricted stock units granted?

The restricted stock units vest on the earlier of the next annual meeting or the anniversary of the June 9, 2026 grant date. Vesting conditions mean the director must remain in service until one of those dates.

Did Monish D. Patolawala pay a price for the granted Biogen (BIIB) shares?

No cash price was paid for the grant, as the price per share is shown as 0.0000. This reflects that the 1,505 shares were issued as a compensation award rather than purchased in a cash transaction.