Vanguard Boosts Biogen Stake to 12.4% as of Dec 29, 2023

TL;DR

**Vanguard now owns 12.4% of Biogen, a significant institutional holding.**

AI Summary

The Vanguard Group, a major investment firm, filed an amended Schedule 13G/A on February 12, 2024, disclosing its ownership in Biogen Inc. common stock as of December 29, 2023. Vanguard reported beneficial ownership of 17,998,061 shares, representing 12.4% of Biogen's outstanding common stock. This filing indicates Vanguard's continued significant passive investment in Biogen, which is important for shareholders as large institutional holdings can provide stability and influence, signaling confidence in the company's long-term prospects.

Why It Matters

This filing shows that a major institutional investor, Vanguard, maintains a substantial stake in Biogen, which can be seen as a vote of confidence and may influence other investors.

Risk Assessment

Risk Level: low — This filing is a routine update from a passive institutional investor and does not indicate any immediate risks or changes in company control.

Analyst Insight

Investors should note Vanguard's continued large, passive holding in Biogen, which suggests long-term institutional confidence without indicating any active management changes or strategic shifts.

Key Numbers

• 17,998,061 — Shares Beneficially Owned (Represents the total number of Biogen common shares Vanguard holds.)
• 12.4% — Ownership Percentage (Indicates Vanguard's significant stake in Biogen, making them a major shareholder.)
• December 29, 2023 — Reporting Date (The specific date for which the ownership data is reported in the filing.)

Key Players & Entities

• The Vanguard Group (company) — reporting person and institutional investor
• Biogen Inc. (company) — issuer of the securities
• 17,998,061 (dollar_amount) — number of shares beneficially owned by Vanguard
• 12.4% (dollar_amount) — percentage of Biogen's common stock owned by Vanguard
• December 29, 2023 (date) — date of the event requiring the filing
• February 12, 2024 (date) — filing date of the SC 13G/A

Forward-Looking Statements

• Vanguard will maintain a significant, passive stake in Biogen for the foreseeable future. (The Vanguard Group) — high confidence, target: December 2024

FAQ

Filing Documents

• tv0011-biogeninc.htm (SC 13G/A) — 11KB
• 0001104659-24-013916.txt ( ) — 13KB

(a) - Name of Issuer

Item 1(a) - Name of Issuer: Biogen Inc

(b) - Address of Issuer's Principal Executive Offices

Item 1(b) - Address of Issuer's Principal Executive Offices: 225 Binney Street Cambridge, MA 02142

(a) - Name of Person Filing

Item 2(a) - Name of Person Filing: The Vanguard Group - 23-1945930

(b) – Address of Principal Business Office or, if none, residence

Item 2(b) – Address of Principal Business Office or, if none, residence: 100 Vanguard Blvd. Malvern, PA 19355

(c) – Citizenship

Item 2(c) – Citizenship: Pennsylvania

(d) - Title of Class of Securities

Item 2(d) - Title of Class of Securities: Common Stock

(e) - CUSIP Number

Item 2(e) - CUSIP Number 09062X103

- Type of Filing

Item 3 - Type of Filing: This statement is being filed pursuant to Rule 13d-1. An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E).

- Ownership

Item 4 - Ownership: (a) Amount Beneficially Owned: (b) Percent of Class: (c) Number of shares as to which such person has: (i) sole power to vote or direct to vote: (ii) shared power to vote or direct to vote: (iii) sole power to dispose of or to direct the disposition of: (iv) shared power to dispose or to direct the disposition of: Comments: The responses to questions 5 through 9 and 11 on the cover page(s) are incorporated by reference into this Item 4.

- Ownership of Five Percent or Less of a Class

Item 5 - Ownership of Five Percent or Less of a Class: If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following

- Ownership of More Than Five Percent on Behalf of Another Person

Item 6 - Ownership of More Than Five Percent on Behalf of Another Person: The Vanguard Group, Inc.'s clients, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein. No one other person's interest in the securities reported herein is more than 5%. Item 7 - Identification and Classification of the Subsidiary Which Acquired The Security Being Reported on by the Parent Holding Company: Not applicable

- Identification and Classification of Members of Group

Item 8 - Identification and Classification of Members of Group: Not applicable

- Notice of Dissolution of Group

Item 9 - Notice of Dissolution of Group: Not applicable

- Certification

Item 10 - Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under 240.14a-11. Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 12, 2024 By /s/ Ashley Grim Name: Ashley Grim Title: Head of Global Fund Administration