ACAD ACADIA Pharmaceuticals Inc.
ACADIA Pharmaceuticals Inc. (ACAD) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| OrbiMed Advisors Growth Healthcare | New | +137.0K | — | $3.5M | 0.1% | 59 |
| Woodline Partners LP Long/Short | Sold Out | -676.4K | -100.0% | $17.1M | 0.0% | 58 |
| Alyeska Investment Group, L.P. | New | +310.3K | — | $7.9M | 0.0% | 58 |
| Gotham Asset Management, LLC Quant Value | Sold Out | -40.4K | -100.0% | $1.0M | 0.0% | 56 |
| CITADEL ADVISORS LLC Quant | Increased | +1.56M | +250.4% | $39.5M | 0.0% | 56 |
| D. E. Shaw & Co., Inc. Quant | Increased | +968.1K | +132.6% | $24.5M | 0.0% | 56 |
| Baker Bros. Advisors Growth Healthcare | Increased | +16.2K | +0.0% | $410.2K | 5.5% | 55 |
| MARSHALL WACE, LLP Long/Short | Increased | +1.69M | +2216.5% | $42.7M | 0.1% | 54 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Increased | +500.0K | +5000.0% | $12.7M | 0.0% | 54 |
| Qube Research & Technologies Ltd Quant | Increased | +1.50M | +157.5% | $37.9M | 0.1% | 53 |
Most significant buyers
By move score, not size.
- OrbiMed Advisors
- Alyeska Investment Group, L.P.
- CITADEL ADVISORS LLC
- D. E. Shaw & Co., Inc.
- Baker Bros. Advisors
Most significant sellers
By move score, not size.
- Woodline Partners LP
- Gotham Asset Management, LLC
- Engineers Gate
- Logos Global Management
- Palo Alto Investors
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| OrbiMed Advisors | 2 | 137.0K | 0 | +137.0K | — | 0.1% | New | 59 |
| Woodline Partners LP | 2 | 0 | 676.4K | -676.4K | -100.0% | 0.0% | Sold Out | 58 |
| Alyeska Investment Group, L.P. | 2 | 310.3K | 0 | +310.3K | — | 0.0% | New | 58 |
| Gotham Asset Management, LLC | 2 | 0 | 40.4K | -40.4K | -100.0% | 0.0% | Sold Out | 56 |
| CITADEL ADVISORS LLC | 1 | 2.2M | 622.8K | +1.56M | +250.4% | 0.0% | Increased | 56 |
| D. E. Shaw & Co., Inc. | 1 | 1.7M | 729.8K | +968.1K | +132.6% | 0.0% | Increased | 56 |
| Baker Bros. Advisors | 1 | 42.9M | 42.9M | +16.2K | +0.0% | 5.5% | Increased | 55 |
| MARSHALL WACE, LLP | 2 | 1.8M | 76.2K | +1.69M | +2216.5% | 0.1% | Increased | 54 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 510.0K | 10.0K | +500.0K | +5000.0% | 0.0% | Increased | 54 |
| Qube Research & Technologies Ltd | 2 | 2.4M | 950.3K | +1.50M | +157.5% | 0.1% | Increased | 53 |
| ADAR1 Capital Management | 3 | 39.0K | 0 | +39.0K | — | 0.0% | New | 53 |
| Schonfeld Strategic Advisors | 3 | 284.2K | 0 | +284.2K | — | 0.0% | New | 53 |
| Engineers Gate | 4 | 0 | 66.0K | -66.0K | -100.0% | 0.0% | Sold Out | 50 |
| Logos Global Management | 2 | 250.0K | 750.0K | -500.0K | -66.7% | 0.3% | Reduced | 50 |
| Palo Alto Investors | 2 | 2.9M | 2.9M | -8.6K | -0.3% | 6.9% | Reduced | 49 |
| Brevan Howard Capital Management | 3 | 0 | 9.2K | -9.2K | -100.0% | 0.0% | Sold Out | 49 |
| Boothbay Fund Management | 4 | 17.2K | 0 | +17.2K | — | 0.0% | New | 49 |
| Y-Intercept | 4 | 0 | 25.7K | -25.7K | -100.0% | 0.0% | Sold Out | 48 |
| Braidwell | 2 | 1.6M | 2.5M | -824.8K | -33.4% | 1.6% | Reduced | 48 |
| Bridgewater Associates | 1 | 50.3K | 141.8K | -91.5K | -64.6% | 0.0% | Reduced | 48 |
| Man Group | 3 | 12.3K | 129.4K | -117.1K | -90.5% | 0.0% | Reduced | 46 |
| Caption Management | 3 | 8.4K | 120.9K | -112.5K | -93.0% | 0.0% | Reduced | 45 |
| CenterBook Partners | 4 | 68.9K | 19.7K | +49.2K | +249.3% | 0.1% | Increased | 45 |
| Squarepoint Ops LLC | 2 | 140.0K | 370.5K | -230.4K | -62.2% | 0.0% | Reduced | 41 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 1.3M | 1.7M | -441.6K | -25.6% | 0.0% | Reduced | 38 |
| Trexquant Investment | 3 | 116.0K | 235.9K | -119.9K | -50.8% | 0.0% | Reduced | 35 |
| Balyasny Asset Management L.P. | 2 | 388.0K | 313.0K | +75.0K | +24.0% | 0.0% | Increased | 34 |
| Edgestream Partners | 4 | 283.3K | 191.3K | +92.0K | +48.1% | 0.2% | Increased | 33 |
| TWO SIGMA INVESTMENTS, LP | 2 | 927.0K | 775.1K | +151.9K | +19.6% | 0.0% | Increased | 33 |
| MILLENNIUM MANAGEMENT LLC | 2 | 589.9K | 705.5K | -115.5K | -16.4% | 0.0% | Reduced | 32 |
| Point72 Asset Management, L.P. | 1 | 2.4M | 2.6M | -144.7K | -5.6% | 0.1% | Reduced | 32 |
| Capstone Investment Advisors | 3 | 18.4K | 22.7K | -4.3K | -18.9% | 0.0% | Reduced | 27 |
| Hudson Bay Capital Management | 3 | 465.0K | 445.5K | +19.5K | +4.4% | 0.1% | Increased | 24 |
| AQR Capital Management | 3 | 522.7K | 527.9K | -5.2K | -1.0% | 0.0% | Reduced | 20 |
| RTW Investments | 1 | 7.1M | 7.1M | 0 | +0.0% | 1.5% | Unchanged | 33 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.