There is a long list of 169 institutional holders of RGNX within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of RGNX by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-RGNX table below, the initial column indicates the name of each top institutional holder of RGNX, with a link to that fund's top holdings. The next columns indicate the amount of RGNX stock held by each of the institutional holders of RGNX, followed by the RGNX position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	8,207,548	$147,325	12/31/2023
RGNX	8,207,548	$147,325	12/31/2023
Vanguard Group Inc.	4,440,838	$79,713	12/31/2023
RGNX	4,440,838	$79,713	12/31/2023
JPMorgan Chase & Co.	3,939,549	$70,715	12/31/2023
RGNX	3,939,549	$70,715	12/31/2023
Redmile Group LLC	3,760,690	$67,504	12/31/2023
RGNX	3,760,690	$67,504	12/31/2023
State Street Corp	2,631,220	$47,230	12/31/2023
RGNX	2,631,220	$47,230	12/31/2023
Morgan Stanley	1,820,382	$32,676	12/31/2023
RGNX	1,820,382	$32,676	12/31/2023
Dimensional Fund Advisors LP	1,226,957	$22,025	12/31/2023
RGNX	1,226,957	$22,025	12/31/2023
Geode Capital Management LLC	929,672	$16,689	12/31/2023
RGNX	929,672	$16,689	12/31/2023
Aquilo Capital Management LLC	802,424	$14,404	12/31/2023
RGNX	802,424	$14,404	12/31/2023
Jacobs Levy Equity Management Inc.	695,184	$12,479	12/31/2023
RGNX	695,184	$12,479	12/31/2023
MPM Oncology Impact Management LP	549,078	$9,856	12/31/2023
RGNX	549,078	$9,856	12/31/2023
Northern Trust Corp	446,773	$8,020	12/31/2023
RGNX	446,773	$8,020	12/31/2023
Sonic GP LLC	443,079	$7,953	12/31/2023
RGNX	443,079	$7,953	12/31/2023
WS Management Lllp	431,200	$7,740	12/31/2023
RGNX	431,200	$7,740	12/31/2023
Ameriprise Financial Inc.	376,728	$6,762	12/31/2023
RGNX	376,728	$6,762	12/31/2023
Perceptive Advisors LLC	342,408	$6,146	12/31/2023
RGNX	342,408	$6,146	12/31/2023
Bank of New York Mellon Corp	337,773	$6,063	12/31/2023
RGNX	337,773	$6,063	12/31/2023
Goldman Sachs Group Inc.	336,106	$6,033	12/31/2023
RGNX	336,106	$6,033	12/31/2023
Charles Schwab Investment Management Inc.	327,451	$5,878	12/31/2023
RGNX	327,451	$5,878	12/31/2023
Integral Health Asset Management LLC	325,000	$5,834	12/31/2023
RGNX	325,000	$5,834	12/31/2023
Principal Financial Group Inc.	236,023	$4,237	12/31/2023
RGNX	236,023	$4,237	12/31/2023
Botty Investors LLC	224,278	$4,026	12/31/2023
RGNX	224,278	$4,026	12/31/2023
Panagora Asset Management Inc.	222,363	$3,991	12/31/2023
RGNX	222,363	$3,991	12/31/2023
Norges Bank	220,524	$3,958	12/31/2023
RGNX	220,524	$3,958	12/31/2023
Citadel Advisors LLC		$3,867	12/31/2023
RGNX	212,044	$3,806	12/31/2023
Call	16,400	$294	12/31/2023
Put	13,000	$233	12/31/2023
Balyasny Asset Management LLC	196,073	$3,520	12/31/2023
RGNX	196,073	$3,520	12/31/2023
D. E. Shaw & Co. Inc.	157,640	$2,830	12/31/2023
RGNX	157,640	$2,830	12/31/2023
Macquarie Group Ltd.	149,000	$2,675	12/31/2023
RGNX	149,000	$2,675	12/31/2023
Invesco Ltd.	146,220	$2,625	12/31/2023
RGNX	146,220	$2,625	12/31/2023
Bank of America Corp DE	132,748	$2,383	12/31/2023
RGNX	132,748	$2,383	12/31/2023
Hennion & Walsh Asset Management Inc.	106,284	$2,239	03/31/2024
RGNX	106,284	$2,239	03/31/2024
Rafferty Asset Management LLC	120,833	$2,169	12/31/2023
RGNX	120,833	$2,169	12/31/2023
Two Sigma Investments LP	115,071	$2,066	12/31/2023
RGNX	115,071	$2,066	12/31/2023
Barclays PLC	112,004	$2,010	12/31/2023
RGNX	112,004	$2,010	12/31/2023
Rhumbline Advisers	111,331	$1,998	12/31/2023
RGNX	111,331	$1,998	12/31/2023
Legal & General Group Plc	110,178	$1,978	12/31/2023
RGNX	110,178	$1,978	12/31/2023
Assenagon Asset Management S.A.	106,682	$1,915	12/31/2023
RGNX	106,682	$1,915	12/31/2023
Nuveen Asset Management LLC	105,768	$1,899	12/31/2023
RGNX	105,768	$1,899	12/31/2023
UBS Group AG		$1,873	12/31/2023
RGNX	148,229	$2,661	12/31/2023
Put	49,300	$885	12/31/2023
Call	5,400	$97	12/31/2023
Mirae Asset Global Investments Co. Ltd.	94,418	$1,695	12/31/2023
RGNX	94,418	$1,695	12/31/2023
Hudson Bay Capital Management LP	90,000	$1,616	12/31/2023
RGNX	90,000	$1,616	12/31/2023
Public Sector Pension Investment Board	83,993	$1,508	12/31/2023
RGNX	83,993	$1,508	12/31/2023
Swiss National Bank	78,000	$1,400	12/31/2023
RGNX	78,000	$1,400	12/31/2023
DekaBank Deutsche Girozentrale	74,600	$1,376	12/31/2023
RGNX	74,600	$1,376	12/31/2023
Citigroup Inc.	72,211	$1,296	12/31/2023
RGNX	72,211	$1,296	12/31/2023
Trexquant Investment LP	70,114	$1,259	12/31/2023
RGNX	70,114	$1,259	12/31/2023
Stifel Financial Corp	67,949	$1,220	12/31/2023
RGNX	67,949	$1,220	12/31/2023
BNP Paribas Arbitrage SA	67,760	$1,216	12/31/2023
RGNX	67,760	$1,216	12/31/2023
State of Wisconsin Investment Board	66,447	$1,193	12/31/2023
RGNX	66,447	$1,193	12/31/2023
Raymond James Financial Services Advisors Inc.	65,903	$1,183	12/31/2023
RGNX	65,903	$1,183	12/31/2023