AMYLYX PHARMACEUTICALS INC

Ticker: AMLX CUSIP: 03237H101 Class: Common Stock

Rock Springs Capital Management LP's Holding History (CIK: 0001595725)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 499,764 Value ($000) $6,037 Avg Close $13.58 Range $11.69 - $16.96
Q3 2025
Shares 499,764 Value ($000) $6,792 Avg Close $9.41 Range $5.97 - $15.14
Q2 2025
Shares 499,764 Value ($000) $3,203 Avg Close $4.86 Range $3.11 - $6.70
Q1 2025
Shares 343,228 Value ($000) $1,215 Avg Close $3.56 Range $2.60 - $4.18
Q1 2024
Shares 1,011,412 Value ($000) $2,872 Avg Close $13.08 Range $2.67 - $19.95
Q4 2023
Shares 535,012 Value ($000) $7,875 Avg Close $15.33 Range $11.82 - $18.88
Q3 2023
Shares 1,545,016 Value ($000) $28,289 Avg Close $21.15 Range $17.80 - $25.48
Q2 2023
Shares 1,544,616 Value ($000) $33,317 Avg Close $27.01 Range $20.79 - $31.77
Q1 2023
Shares 1,452,816 Value ($000) $42,626 Avg Close $34.74 Range $26.64 - $41.93
Q4 2022
Shares 1,229,637 Value ($000) $45,435 Avg Close $35.49 Range $28.13 - $39.77
Q3 2022
Shares 403,737 Value ($000) $11,365 Avg Close $24.95 Range $15.80 - $32.80
Q2 2022
Shares 974,107 Value ($000) $18,761 Avg Close $11.87 Range $6.51 - $20.74
Q1 2022
Shares 998,307 Value ($000) $12,828 Avg Close $22.45 Range $10.49 - $33.41