REGENXBIO INC

Ticker: RGNX CUSIP: 75901B107 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q4 2025

Shares 114,988 Value ($000) $1,656 Avg Close $12.46 Range $9.55 - $15.41

Q3 2025

Shares 118,795 Value ($000) $1,146 Avg Close $8.84 Range $7.35 - $10.17

Q2 2025

Shares 20,500 Value ($000) $168 Avg Close $8.37 Range $5.04 - $11.00

Q2 2023

Shares 23,273 Value ($000) $465 Avg Close $19.27 Range $17.02 - $22.13

Q1 2023

Shares 49,457 Value ($000) $935 Avg Close $22.13 Range $17.82 - $25.54

Q4 2022

Shares 44,546 Value ($000) $1,010 Avg Close $22.61 Range $19.82 - $27.08

Q3 2022

Shares 43,603 Value ($000) $1,152 Avg Close $29.67 Range $22.20 - $35.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	114,988	$1,656	$12.46	$9.55 - $15.41
Q3 2025	118,795	$1,146	$8.84	$7.35 - $10.17
Q2 2025	20,500	$168	$8.37	$5.04 - $11.00
Q2 2023	23,273	$465	$19.27	$17.02 - $22.13
Q1 2023	49,457	$935	$22.13	$17.82 - $25.54
Q4 2022	44,546	$1,010	$22.61	$19.82 - $27.08
Q3 2022	43,603	$1,152	$29.67	$22.20 - $35.73