Yvonne Greenstreet, Chief Executive Officer at ALNYLAM PHARMACEUTICALS, INC. (ALNY), sold 13,448 shares at $454.84 ($6.1M) on 2025-08-18, disclosed to the SEC on 2025-08-19.
Seasonal sale ($6.1M) by Chief Executive Officer — this insider has traded ALNY in August in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $447.98 | 194 | $87K | 1.4% |
| 2 | $447.98 | 194 | $87K | 1.4% |
| 3 | $449.92 | 450 | $202K | 3.3% |
| 4 | $450.92 | 195 | $88K | 1.4% |
| 5 | $450.92 | 195 | $88K | 1.4% |
| 6 | $451.99 | 514 |
| $232K |
| 3.8% |
| 7 | $451.99 | 514 | $232K | 3.8% |
| 8 | $452.96 | 1,646 | $746K | 12.2% |
| 9 | $452.96 | 1,646 | $746K | 12.2% |
| 10 | $454.04 | 2,716 | $1.2M | 20.2% |
| 11 | $454.04 | 2,716 | $1.2M | 20.2% |
| 12 | $454.84 | 1,204 | $548K | 9.0% |
| 13 | $454.84 | 1,204 | $548K | 9.0% |
| 14 | $455.82 | 60 | $27K | 0.4% |
| Total | $453.37 avg | 13,448 | $6.1M | 100% |
| Filing → |
| ALNY | SELL | 2026-02-17 | $2.2M | — | Filing → |
| ALNY | SELL | 2026-01-14 | $3.5M | — | Filing → |
| ALNY | SELL | 2025-11-14 | $23.2M | — | Filing → |