BIIB — BIOGEN INC

Ownership history in MQS Management LLC  ·  5 quarters on record

This page tracks every 13F SEC filing in which MQS Management LLC reported a position in BIOGEN INC (BIIB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.35% (2024 Q3)
Avg. % of fund
0.25%
First filed
2024 Q1
Last filed
2025 Q3
Quarters held
5
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 3,206 -611 -16.0% 0.26% $449K $140.08
2025 Q2 ADDED 3,817 +2,030 +113.6% 0.26% $479K $125.59
2025 Q1 REDUCED 1,787 -1,469 -45.1% 0.14% $245K $136.84
2024 Q3 ADDED 3,256 +1,246 +62.0% 0.35% $631K $193.84
2024 Q1 INITIATED 2,010 — — 0.25% $433K —
% of Fund (quarterly)    BIIB price (monthly, adj. close)

Other funds also holding BIIB

As of 2025 Q4 — sorted by position size

Palo Alto Investors LP 3Y 7Y 4.5% BRIDGER MANAGEMENT, LLC 3Y 7Y 4.08% Patient Capital Management, LLC 3Y 3.92% SECTOR GAMMA AS 3Y 7Y 3.43% Hillman Capital Management, Inc. 3Y 7Y 3.38% SPHERA FUNDS MANAGEMENT LTD. 3Y 7Y 3.22% Privium Fund Management B.V. 3Y 2.38% Logos Global Management LP 3Y 2.13% Orion Investment Co 2.11% PRIMECAP MANAGEMENT CO/CA/ 3Y 7Y 1.97%
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