George Soros's ALNY Position Overview
George Soros (via Soros Fund Management LLC) currently holds 4.3K shares of Alnylam Pharmaceuticals, Inc. (ALNY) worth $1.96 M, representing 0.03% of the portfolio. First purchased in 2014-Q1, this long-term strategic position has been held for 47 quarters.
Based on 13F filings since 2013, George Soros has maintained a long-term strategic position in ALNY, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2019, adding 33.0K shares. Largest reduction occurred in Q3 2025, reducing 55.7K shares.
Analysis based on 13F filings available since 2013 Q2
George Soros's Alnylam Pharmaceuticals (ALNY) Holding Value Over Time
Track share changes against reported price movement
Quarterly Alnylam Pharmaceuticals (ALNY) Trades by George Soros
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2014 | +3,092 | New Buy | 3,092 | $67.27 |
| Q2 2014 | -3,092 | Sold Out | 3,092 | $0.00 |
| Q4 2015 | +6,000 | New Buy | 6,000 | $94.17 |
| Q1 2016 | -6,000 | Sold Out | 6,000 | $0.00 |
| Q2 2017 | +7,000 | New Buy | 7,000 | $79.71 |
| Q3 2017 | -7,000 | Sold Out | 7,000 | $0.00 |
| Q2 2019 | +40,000 | New Buy | 40,000 | $72.55 |
| Q3 2019 | -40,000 | Sold Out | 40,000 | $0.00 |
| Q1 2025 | +60,000 | New Buy | 60,000 | $270.02 |
| Q2 2025 | -60,000 | Sold Out | 60,000 | $0.00 |
| Q3 2025 | +4,295 | New Buy | 4,295 | $456.00 |
George Soros's Alnylam Pharmaceuticals Investment FAQs
George Soros first purchased Alnylam Pharmaceuticals, Inc. (ALNY) in Q1 2014, acquiring 3,092 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
George Soros has held Alnylam Pharmaceuticals, Inc. (ALNY) for 47 quarters since Q1 2014. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
George Soros's largest addition to Alnylam Pharmaceuticals, Inc. (ALNY) was in Q1 2025, adding 60,000 shares worth $16.2 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, George Soros's firm, Soros Fund Management LLC, owns 4,295 shares of Alnylam Pharmaceuticals, Inc. (ALNY), valued at approximately $1.96 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Alnylam Pharmaceuticals, Inc. (ALNY) represents approximately 0.03% of George Soros's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
George Soros's peak holding in Alnylam Pharmaceuticals, Inc. (ALNY) was 60,000 shares, as reported at the end of Q1 2025. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.