Morningside Venture Investments Ltd is 10% Owner at Amylyx Pharmaceuticals, Inc. (AMLX). They have made 28 open-market trades across 5 companies since 2017, most recently 2026-08-03.
CIK 0001543112
10 open-market purchases totalling $94.4M since 2017, against 18 sales. Across 9 scored buys the stock is down 11.9% at ninety days, and 3.9 points behind the S&P over the same stretch.
10 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 40% | 50% | 44% |
| Avg Move | +3.3% | -6.0% | -11.9% |
| Alpha | +3.9% | -2.3% | -3.9% |
| Scored | 10 | 10 | 9 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 56% | 83% | 100% |
| Avg Move | -1.3% | -8.0% | -42.9% |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| APMD | BUY | 2026-08-03 | 2026-08-05 | $16.00 | $5.0M | +24.8% | +4.2% | — |
| AMLX | SELL | 2023-03-29 | 2023-03-31 | $30.45 | $1.8M | +4.4% | -2.8% | -28.4% |
| AMLX | SELL | 2023-03-27 | 2023-03-29 | $30.42 | $4.9M | +0.1% | -2.9% | -25.4% |
| AMLX | SELL | 2023-03-21 | 2023-03-23 | $31.91 | $4.0M | -0.5% | +5.2% | -12.8% |
| AMLX | SELL | 2023-03-16 | 2023-03-17 | $32.55 | $594K | -3.1% | +2.5% | -17.8% |
| AMLX | SELL | 2023-03-14 | 2023-03-16 | $33.68 | $14.9M | -3.7% | -2.6% | -21.4% |
| AMLX | SELL | 2023-03-02 | 2023-03-06 | $33.75 | $1.7M | -7.6% | -19.9% | -27.2% |
| AMLX | SELL | 2023-02-22 | 2023-02-28 | $34.73 | $3.5M | -12.4% | -20.9% | -31.4% |
| AMLX | SELL | 2023-02-22 | 2023-02-24 | $35.78 | $7.1M | +4.5% | -11.9% | -23.9% |
| KZR | SELL | 2023-02-03 | 2023-02-07 | $6.98 | $454K | -0.9% | -21.9% | -60.7% |
| KZR | SELL | 2023-02-01 | 2023-02-03 | $7.08 | $638K | -7.3% | -18.8% | -63.3% |
| KZR | SELL | 2023-01-30 | 2023-02-01 | $7.00 | $420K | -7.1% | -18.6% | -64.0% |
| KZR | SELL | 2023-01-25 | 2023-01-27 | $6.85 | $343K | -4.4% | -7.6% | -65.6% |
| KZR | SELL | 2023-01-23 | 2023-01-25 | $6.90 | $1.1M | +0.4% | -8.8% | -64.0% |
| KZR | SELL | 2023-01-17 | 2023-01-19 | $6.79 | $42K | +13.1% | -2.7% | -60.6% |
| KZR | SELL | 2023-01-12 | 2023-01-17 | $6.88 | $48K | +5.2% | -3.4% | -61.9% |
| KZR | SELL | 2023-01-05 | 2023-01-09 | $6.96 | $190K | +2.2% | +3.7% | -62.4% |
| KZR | SELL | 2022-12-29 | 2023-01-05 | $7.14 | $396K | -7.2% | -0.3% | -65.5% |
| KZR | SELL | 2022-10-03 | 2022-10-05 | $8.78 | $536K | +0.2% | -12.3% | -15.4% |
| GRNA | BUY | 2022-08-11 | 2022-08-15 | $3.92 | $24.0M | -17.6% | -56.1% | -55.4% |
| AMLX | BUY | 2022-01-11 | 2022-01-25 | $19.00 | $5.0M | +19.5% | +59.6% | -44.2% |
| APLS | BUY | 2021-11-18 | 2021-11-18 | $40.00 | $10.0M | -0.7% | +5.9% | +6.4% |
| KZR | BUY | 2020-02-04 | 2020-02-06 | $2.60 | $9.9M | +35.8% | +13.0% | +35.0% |
| APLS | BUY | 2020-01-13 | 2020-01-21 | $37.00 | $20.0M | -5.4% | -10.4% | -17.7% |
| APLS | BUY | 2019-03-11 | 2019-03-13 | $17.00 | $7.5M | +2.1% | +2.5% | +8.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| Total | $818.9M |
Shares reported on the most recent Form 4, priced at the 2026-08-05 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Scored | 18 | 18 | 18 |