James N. Topper is Director & 10% at AMICUS THERAPEUTICS INC (FOLD). They have made 62 open-market trades across 14 companies since 2007, most recently 2026-05-19.
CIK 0001341382
60 open-market purchases totalling $123.5M since 2007, against 2 sales. Across 60 scored buys the stock is up 7.6% at ninety days, and 6.0 points ahead of the S&P over the same stretch.
60 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 17% | 20% | 18% |
| Avg Move | -20.4% | +7.0% | +7.6% |
| Alpha | -16.3% | +6.7% | +6.0% |
| Scored | 60 | 60 | 60 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NAMS | BUY | 2025-09-15 | 2025-09-17 | $23.70 | $16K | +9.7% | +45.1% | +36.4% |
| NAMS | BUY | 2025-09-08 | 2025-09-10 | $24.99 | $31K | -0.3% | +36.6% | +28.3% |
| NAMS | BUY | 2025-08-11 | 2025-08-13 | $23.98 | $11K | -4.0% | -5.9% | +55.1% |
| NAMS | BUY | 2025-06-24 | 2025-06-26 | $18.37 | $69K | +16.0% | +25.6% | +43.5% |
| NAMS | BUY | 2025-06-16 | 2025-06-18 | $19.50 | $167K | -4.2% | +16.8% | +29.0% |
| PHAT | BUY | 2025-05-21 | 2025-05-23 | $3.86 | $15K | +14.1% | +130.4% | +166.4% |
| PHAT | BUY | 2025-05-13 | 2025-05-15 | $3.30 | $24K | +15.6% | +201.4% | +196.9% |
| PHAT | BUY | 2025-05-09 | 2025-05-13 | $3.18 | $259K | +18.2% | +195.0% | +202.4% |
| NAMS | BUY | 2025-03-26 | 2025-03-28 | $22.49 | $26K | -27.0% | -17.9% | -15.1% |
| NAMS | BUY | 2025-03-04 | 2025-03-06 | $21.02 | $168K | -0.3% | -33.2% | -18.3% |
| ALPN | SELL | 2024-04-25 | 2024-04-29 | $64.57 | $1K | +0.3% | N/A | N/A |
| NAMS | BUY | 2024-03-26 | 2024-03-28 | $21.50 | $362K | -19.7% | -9.0% | -17.0% |
| HLVX | BUY | 2022-05-03 | 2022-05-03 | $17.00 | $30.0M | -28.6% | -46.9% | -44.5% |
| MIRM | BUY | 2019-07-22 | 2019-07-24 | $15.00 | $6.8M | -5.9% | +0.4% | -47.4% |
| ALPN | BUY | 2019-01-18 | 2019-01-22 | $5.37 | $4.0M | +3.4% | -3.2% | +16.1% |
| ETTX | BUY | 2018-09-28 | 2018-10-02 | $15.00 | $5.6M | -10.6% | -32.0% | -58.0% |
| APTX | BUY | 2018-06-25 | 2018-06-26 | $16.00 | $2.4M | +20.3% | +10.5% | +31.9% |
| ALNA | BUY | 2017-11-06 | 2017-11-06 | $14.00 | $7.0M | +15.4% | +37.3% | -22.2% |
| SRRA | BUY | 2017-02-14 | 2017-02-16 | $1.35 | $16.0M | +3.5% | +4.2% | -15.5% |
| ANAB | BUY | 2017-01-31 | 2017-01-31 | $15.00 | $6.0M | +30.5% | +32.0% | +51.9% |
| DNAI | BUY | 2015-07-21 | 2015-07-21 | $17.00 | $3.7M | -27.9% | -8.5% | -8.5% |
| COLL | BUY | 2015-05-12 | 2015-05-14 | $12.00 | $1.8M | -43.4% | -1.8% | -1.8% |
| LJPC | SELL | 2009-02-24 | 2009-02-26 | $0.06 | $369K | -40.0% | -4.4% | -4.4% |
| FOLD | BUY | 2008-03-10 | 2008-03-10 | $10.27 | $49K | -30.4% | -3.9% | -3.9% |
| FOLD | BUY | 2008-03-06 | 2008-03-10 | $10.01 | $229K | -30.4% | -3.9% | -3.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| HLVX | 6,770,631 | $14.2M |
| FOLD | 899,495 | $13.0M |
| DNAI | 1,966,195 | $3.1M |
| ARQT | 96,574 | $2.8M |
| ANAB | 54,458 | $2.5M |
| ETTX | 589,194 | $1.3M |
| APTX | 3,195,055 | $495K |
| PHAT | 66,718 | $462K |
| ALNA | 2,830,373 | $212K |
| Total | $953.2M |
Shares reported on the most recent Form 4, priced at the 2026-05-21 close.