AVEXIS INC

CUSIP: 05366U100 Class: Common equity shares

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

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

Q1 2018
Shares 190,000 Value ($000) $23,480 Avg Close — Range —
Q4 2017
Shares 175,000 Value ($000) $19,367 Avg Close — Range —
Q3 2017
Shares 175,000 Value ($000) $16,928 Avg Close — Range —
Q2 2017
Shares 175,000 Value ($000) $14,378 Avg Close — Range —
Q1 2017
Shares 140,000 Value ($000) $10,644 Avg Close — Range —
Q4 2016
Shares 140,000 Value ($000) $6,682 Avg Close — Range —
Q3 2016
Shares 140,000 Value ($000) $5,769 Avg Close — Range —
Q2 2016
Shares 142,758 Value ($000) $5,428 Avg Close — Range —
Q1 2016
Shares 142,758 Value ($000) $3,889 Avg Close — Range —