Ownership history in PEAK6 LLC · 12 quarters on record
This page tracks every 13F SEC filing in which PEAK6 LLC reported a position in ALNYLAM PHARMACEUTICALS INC (ALNY). 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.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 2 | -50,698 | -100.0% | 0.00% | $866 | $397.65 |
| 2025 Q4 | ADDED | 50,700 | +50,697 | +1689900.0% | 0.04% | $20.2M | $397.65 |
| 2025 Q3 | REDUCED | 3 | -51,797 | -100.0% | 0.00% | $1K | $456.00 |
| 2025 Q3 | ADDED | 51,800 | +51,100 | +7300.0% | 0.03% | $23.6M | $456.00 |
| 2025 Q3 | REDUCED | 700 | -600 | -46.2% | 0.00% | $319K | $456.00 |
| 2025 Q2 | REDUCED | 1,300 | -31,800 | -96.1% | 0.00% | $424K | $326.09 |
| 2025 Q2 | ADDED | 33,100 | +30,805 | +1342.3% | 0.02% | $10.8M | $326.09 |
| 2025 Q1 | ADDED | 2,295 | +2,195 | +2195.0% | 0.00% | $620K | $270.02 |
| 2025 Q1 | REDUCED | 100 | -13,200 | -99.2% | 0.00% | $27K | $270.02 |
| 2025 Q1 | ADDED | 13,300 | +2,598 | +24.3% | 0.01% | $3.6M | $270.02 |
As of 2025 Q4 — sorted by position size