REGENXBIO Inc. (RGNX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

51,617,500Shares Outstanding

1,320,282Shares held by institutions

$10,615,067Value of institutional holdings

78.94%Institutional ownership %

1.38%Shares Changed QoQ

164No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, REGENXBIO Inc. (NASDAQ:RGNX) is held by 164 institutional firms.

These investors collectively held 78.9% of the company's total shares outstanding in December 2025, down from 80.2% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 1.38%, with a year-over-year a decrease of 6.29% in the count of filers.
Of these 164 institutional investors, 80 increased their holdings in Regenxbio, while 59 of them reduced positions, and 25 investors maintained their exposure.
This class of investors increased its holdings in Regenxbio to 40.74Mn shares for the 13F-cycle ending December 2025, up by 555.28K shares quarter on quarter, and down 1.33Mn shares year over year.
BlackRock, Inc. continues to be the largest institutional holder of Regenxbio as of December 31, 2025, with a position of 5.76Mn shares, representing 11.15% of the company's outstanding stock.
Among the most significant buyers of Regenxbio during December 2025 were Assenagon Asset Management S.A. (454.98K), MORGAN STANLEY (310.52K), STATE STREET CORP (301.86K), GSK plc (271.46K), Pale Fire Capital SE (243.93K).
Leading sellers of Regenxbio stock in December 2025 included BlackRock, Inc. (614.08K), JPMORGAN CHASE & CO (483.75K), Redmile Group, LLC (324.58K), Voss Capital, LP (205.00K), DIMENSIONAL FUND ADVISORS LP (201.18K).
The top 10 institutional holders of Regenxbio for the quarter ending December 2025 included BlackRock, Inc. (5.76Mn), Redmile Group, LLC (4.37Mn), JPMORGAN CHASE & CO (3.55Mn), VANGUARD GROUP INC (3.37Mn), STATE STREET CORP (2.29Mn), MORGAN STANLEY (2.01Mn), GOLDMAN SACHS GROUP INC (1.79Mn), AQR CAPITAL MANAGEMENT LLC (1.36Mn), Integral Health Asset Management, LLC (1.20Mn), Assenagon Asset Management S.A. (1.16Mn).

164 Institutional Holders

1,320,282 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	5,756,811	-614,082	-9.64%	$82,898,078.00
Redmile Group, LLC	31 Dec, 2025	4,368,804	-324,585	-6.92%	$62,910,778.00
JPMORGAN CHASE & CO	31 Dec, 2025	3,553,502	-483,746	-11.98%	$51,170,429.00
VANGUARD GROUP INC	31 Dec, 2025	3,374,140	36,042	1.08%	$48,587,616.00
STATE STREET CORP	31 Dec, 2025	2,286,736	301,858	15.21%	$32,928,998.00
MORGAN STANLEY	31 Dec, 2025	2,014,788	310,520	18.22%	$29,012,955.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	1,785,437	-66,777	-3.61%	$25,710,293.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	1,361,962	72,307	5.61%	$19,612,253.00
Integral Health Asset Management, LLC	31 Dec, 2025	1,200,000	100,000	9.09%	$17,280,000.00
Assenagon Asset Management S.A.	31 Dec, 2025	1,160,380	454,977	64.50%	$16,709,472.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,145,206	19,658	1.75%	$16,495,225.00
22NW, LP	31 Dec, 2025	923,679	0	0.00%	$13,300,978.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	903,851	-201,176	-18.21%	$13,014,235.00
Nuveen, LLC	31 Dec, 2025	658,510	106,363	19.26%	$9,482,544.00
Pale Fire Capital SE	31 Dec, 2025	499,526	243,925	95.43%	$7,193,174.00
Qube Research & Technologies Ltd	31 Dec, 2025	442,690	157,859	55.42%	$6,374,736.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	391,461	-527	-0.13%	$5,637,038.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	375,399	-23,733	-5.95%	$5,404.00
NORTHERN TRUST CORP	31 Dec, 2025	373,689	-27,321	-6.81%	$5,381,121.00
STIFEL FINANCIAL CORP	31 Dec, 2025	335,046	14,636	4.57%	$4,824,676.00

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