BIIB

BIIB

BIIB

Letters With This Ticker

Quarter Letter Date Fund Name QTD YTD Tickers Keywords/Themes Theme Commentary Pitches Letter
2024 Q1 Apr 27, 2024 Parnassus Value Equity Fund 7.3% 13.7% BAC, BALL, BEPC, BIIB, BMRN, CHTR, CMI, DOX, FIS, GILD, INTC, MU, NICE, ORCL, PFE, PGR, SPGI, SYY, VZ, WDC AI, financials, large cap, semiconductors, technology, value
2024 Q1 Apr 25, 2024 Patient Capital Management 5.6% 15.8% AMZN, BIIB, C, CLF, COIN, CROX, EXPE, GOOGL, KOS, META, NVDA, PTON, SOFI AI, Biotechnology, Buybacks, crypto, growth, large cap, technology BIIB
NVDA
2024 Q1 Apr 15, 2024 ClearBridge Investments All Cap Growth 0.0% 0.0% AAPL, ABNB, ADBE, AMZN, BIIB, CRWD, CSCO, GOOGL, MDB, META, MSFT, NVDA, PODD, PYPL, SNOW, SPLK, TGT, TSLA, UNH, UNP, WDAY AI, growth, healthcare, mid cap, risk management, technology WDAY
MDB
2024 Q4 Dec 31, 2024 ClearBridge Investments All Cap Growth - - AMZN, AVGO, BIIB, CMCSA, CMG, ETSY, FCX, GOOGL, ICLR, ISRG, META, NFLX, NVDA, STX, TMO, TSLA, UBER, UNH, V, VRTX AI, Biotechnology, growth, healthcare, large cap, momentum, technology CMCSA
BIIB
CMG
ICLR
2024 Q4 Dec 31, 2024 Parnassus Value Equity Fund -1.5% 12.0% ABNB, ALGN, AMAT, AMZN, AVGO, AZN, BALL, BAX, BIIB, BK, DHI, GOOGL, GPN, INTC, MU, NICE, ORCL, PGR, SCHW, TSM AI, financials, healthcare, large cap, semiconductors, technology, value V
AMAT
NVO
AZN
ABNB
2024 Q2 Nov 7, 2022 Patient Capital Management 5.6% 15.8% AAPL, AMZN, BIIB, CVS, DAL, EVRI, EXPE, GOOGL, IAC, ILMN, KOS, META, MSFT, NCLH, NVDA, RPRX, TSLA, UAL AI, energy, healthcare, small caps, technology, Travel, value EXPE
EVRI
KOS
IAC
NVDA
2024 Q3 Oct 28, 2024 Parnassus Value Equity Fund 7.3% 13.7% AMZN, AXP, BAC, BALL, BIIB, BK, CBRE, CHTR, DE, DHI, GOOGL, INTC, MU, ORCL, PGR, SCHW, SPGI, SYY, UNH, VZ financials, healthcare, large cap, rates, technology, value AMZN
UNH
2025 Q4 Jan 15, 2026 Alger Mid Cap Focus Fund -3.4% 15.0% APH, BIIB, CVNA, FIX, FTI, NET, NTRA, RGEN growth, healthcare, industrials, mid cap, technology
2022 Q3 Feb 11, 2022 ClearBridge Investments All Cap Growth 0.0% 0.0% BIIB, CMCSA, FIS, META, PATH, TEAM -
2024 Q4 Jan 13, 2025 Patient Capital Management - - AMZN, BIIB, COST, CVS, DAL, EXPE, FBTC, GOOGL, KOS, META, NCLH, NVDA, OMF, PGEN, PLAY, RPRX, SDRL, TSLA, UAL AI, Bull Market, Cyclical, energy, healthcare, technology, Travel, value BIIB
CVS
RPRX
SDRL
KOS
FBTC
OMF
PGEN
2023 Q4 Jan 13, 2024 ClearBridge Investments All Cap Growth 0.0% 0.0% AAPL, AMZN, APTV, AVGO, BIIB, CMCSA, CRWD, CTAS, GH, GOOGL, HUBS, META, MSFT, MTCH, NFLX, NOW, NVDA, PANW, TGT, TSLA, U, UPS, WBD diversification, growth, large cap, software, technology, volatility 0CUN LN
AIR FP|ICLR|LIN|MRVL|NOW|TSM
CTAS

Pitches With This Ticker

Date Pitch Type Author Company Industry Sub Industry Bull / Bear Stock Exchange Keywords Action
Apr 13, 2026 Fund Letters Patient Capital Management Biogen Inc. Health Care Biotechnology Bull NASDAQ Alzheimer's disease, biotechnology, healthcare, Leqembi, multiple sclerosis, Neurology, turnaround, Value
Apr 13, 2026 Fund Letters Patient Capital Management Biogen Health Care Biotechnology Bull NASDAQ Accretive Deals, Alzheimer's disease, biotechnology, deep value, defensive, Equity, healthcare, Neurology, Pipeline Value
Apr 13, 2026 Fund Letters ClearBridge Investments All Cap Growth Biogen Inc Health Care Biotechnology Bear NASDAQ Acquisition Risk, Alzheimer's disease, biotechnology, Drug launch, multiple sclerosis, neurological disorders, patent expiration, Pricing pressure

BSD Shareholders of BIIB

This report provides a detailed summary of investor holdings for a specified stock ticker, highlighting key metrics such as fund name, total assets under management (AUM), invested value, portfolio weight, and shares owned. It also tracks changes in share ownership during the last quarter, including the percentage of shares bought or sold and the percentage of outstanding shares owned. The data is generated using an API that processes investor holdings and calculates these values for each fund. This report helps investors and analysts monitor the stock positions of major funds, identify investment trends, and assess the influence of large investors on individual stocks.

Filing Date: September 30, 2025
Manager Name Fund Name Fund AUM Invested Value Portfolio Weight Shares Owned Shares Bought / Sold During Quarter % Bought / Sold During Quarter % of Shares Outstanding Owned
No investor data available.