Ownership history in Ghost Tree Capital, LLC · 22 quarters on record
This page tracks every 13F SEC filing in which Ghost Tree Capital, LLC reported a position in ACADIA PHARMACEUTICALS INC (ACAD). 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) |
|---|---|---|---|---|---|---|---|
| 2024 Q2 | UNCHANGED | 225,000 | — | 0% | 1.14% | $3.7M | $16.25 |
| 2024 Q1 | ADDED | 225,000 | +25,000 | +12.5% | 1.15% | $4.2M | $18.49 |
| 2024 Q1 | ADDED | 200,000 | +150,000 | +300.0% | 1.02% | $3.7M | $18.49 |
| 2023 Q4 | REDUCED | 50,000 | -30,000 | -37.5% | 0.51% | $1.6M | $31.31 |
| 2023 Q3 | REDUCED | 80,000 | -85,000 | -51.5% | 0.55% | $1.7M | $20.84 |
| 2020 Q2 | REDUCED | 165,000 | -585,000 | -78.0% | 2.11% | $8.0M | $48.47 |
| 2019 Q2 | REDUCED | 750,000 | -150,000 | -16.7% | 4.20% | $20.0M | $26.73 |
| 2019 Q1 | ADDED | 900,000 | +775,000 | +620.0% | 6.55% | $24.2M | $26.85 |
| 2018 Q4 | REDUCED | 125,000 | -375,000 | -75.0% | 0.71% | $2.0M | $16.17 |
| 2018 Q3 | UNCHANGED | 500,000 | — | 0% | 1.49% | $7.0M | $20.76 |
As of 2025 Q4 — sorted by position size