AVEXIS INC

CUSIP: 05366U100 Class: Common equity shares

RTW INVESTMENTS, LP's Holding History (CIK: 0001493215)

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

Q1 2018
Shares 236,425 Value ($000) $29,217 Avg Close — Range —
Q4 2017
Shares 281,242 Value ($000) $31,125 Avg Close — Range —
Q3 2017
Shares 467,667 Value ($000) $45,237 Avg Close — Range —
Q2 2017
Shares 587,117 Value ($000) $48,238 Avg Close — Range —
Q1 2017
Shares 623,330 Value ($000) $47,392 Avg Close — Range —
Q4 2016
Shares 849,043 Value ($000) $40,525 Avg Close — Range —
Q3 2016
Shares 825,980 Value ($000) $34,039 Avg Close — Range —
Q2 2016
Shares 476,367 Value ($000) $18,111 Avg Close — Range —
Q1 2016
Shares 473,374 Value ($000) $12,895 Avg Close — Range —