REGENXBIO INC (RGNX) Top Institutional Shareholders
REGENXBIO INC (RGNX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $342.89M in RGNX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of RGNX tracked by InsiderSet, reporting ownership valued at approximately $48.46M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $45.68M, representing an estimated loss of -5.73% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 61% of the total disclosed RGNX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Redmile Group, Llc, State Street Corp, and several other long-term asset managers with concentrated positions in REGENXBIO INC (RGNX).
This page ranks the largest institutional RGNX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
173
Total Reported Value
$342.89M
Largest Holder
Blackrock, Inc.
Largest Position
$48.46M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
181
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 5,782,808 | $48,459,930 | $45,684,183 | -$2,775,747 | -5.73% | |
| Redmile Group, Llc | 2.42% | 4,368,804 | $36,610,578 | $34,513,552 | -$2,097,026 | -5.73% | |
| State Street Corp | 0.00% | 2,731,485 | $22,889,844 | $21,578,732 | -$1,311,113 | -5.73% | |
| Eversource Wealth Advisors, Llc | 0.62% | 79,634 | $20,209,997 | $629,109 | -$19,580,888 | -96.89% | |
| Morgan Stanley | 0.00% | 2,066,157 | $17,314,400 | $16,322,640 | -$991,760 | -5.73% | |
| Vanguard Capital Management Llc | 0.00% | 2,007,146 | $16,819,883 | $15,856,453 | -$963,430 | -5.73% | |
| Goldman Sachs Group Inc | 0.00% | 1,839,463 | $15,414,700 | $14,531,758 | -$882,942 | -5.73% | |
| Integral Health Asset Management, Llc | 0.67% | 1,500,000 | $12,570,000 | $11,850,000 | -$720,000 | -5.73% | |
| Qube Research & Technologies Ltd | 0.02% | 1,310,493 | $10,981,931 | $10,352,895 | -$629,036 | -5.73% | |
| Geode Capital Management, Llc | 0.00% | 1,137,498 | $9,534,835 | $8,986,234 | -$548,601 | -5.75% | |
| Aqr Capital Management Llc | 0.00% | 1,051,712 | $8,813,347 | $8,308,525 | -$504,822 | -5.73% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,018,901 | $8,538,390 | $8,049,318 | -$489,072 | -5.73% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,010,381 | $8,463,684 | $7,982,010 | -$481,674 | -5.69% | |
| Assenagon Asset Management S.A. | 0.01% | 980,611 | $8,217,520 | $7,746,827 | -$470,693 | -5.73% | |
| Nuveen, Llc | 0.00% | 582,016 | $4,877,294 | $4,597,926 | -$279,368 | -5.73% | |
| Two Sigma Investments, Lp | 0.00% | 554,892 | $4,649,995 | $4,383,647 | -$266,348 | -5.73% | |
| Pale Fire Capital Se | 0.36% | 493,726 | $4,137,424 | $3,900,435 | -$236,989 | -5.73% | |
| 22Nw, Lp | 2.83% | 492,759 | $4,129,320 | $3,892,796 | -$236,524 | -5.73% | |
| Northern Trust Corp | 0.00% | 393,640 | $3,298,703 | $3,109,756 | -$188,947 | -5.73% | |
| Stifel Financial Corp | 0.00% | 392,769 | $3,291,423 | $3,102,875 | -$188,548 | -5.73% | |
| Charles Schwab Investment Management Inc | 0.00% | 390,601 | $3,273,236 | $3,085,748 | -$187,488 | -5.73% | |
| Bank Of America Corp | 0.00% | 324,860 | $2,722,327 | $2,566,394 | -$155,933 | -5.73% | |
| Vanguard Fiduciary Trust Co | 0.00% | 312,064 | $2,615,096 | $2,465,306 | -$149,790 | -5.73% | |
| Fmr Llc | 0.00% | 311,268 | $2,608,423 | $2,459,017 | -$149,406 | -5.73% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 305,286 | $2,558,297 | $2,411,759 | -$146,538 | -5.73% |
| Voss Capital, Lp | 0.14% | 295,787 | $2,478,695 | $2,336,717 | -$141,978 | -5.73% | |
| D. E. Shaw & Co., Inc. | 0.00% | 286,001 | $2,396,688 | $2,259,408 | -$137,280 | -5.73% | |
| Millennium Management Llc | 0.00% | 285,174 | $2,389,758 | $2,252,875 | -$136,883 | -5.73% | |
| Y-Intercept (Hong Kong) Ltd | 0.04% | 275,021 | $2,304,676 | $2,172,666 | -$132,010 | -5.73% | |
| Gsk Plc | 0.38% | 271,456 | $2,274,801 | $2,144,502 | -$130,299 | -5.73% | |
| Ubs Group Ag | 0.00% | 257,463 | $2,157,540 | $2,033,958 | -$123,582 | -5.73% | |
| Archpoint Investors | 0.44% | 222,278 | $1,862,690 | $1,755,996 | -$106,694 | -5.73% | |
| Jump Financial, Llc | 0.03% | 220,789 | $1,850,212 | $1,744,233 | -$105,979 | -5.73% | |
| Ameriprise Financial Inc | 0.00% | 200,352 | $1,678,949 | $1,582,781 | -$96,168 | -5.73% | |
| Prosight Management, Lp | 0.27% | 200,000 | $1,676,000 | $1,580,000 | -$96,000 | -5.73% | |
| Deutsche Bank Ag\ | 0.00% | 196,971 | $1,650,617 | $1,556,071 | -$94,546 | -5.73% | |
| Man Group Plc | 0.00% | 187,625 | $1,572,298 | $1,482,238 | -$90,061 | -5.73% | |
| Susquehanna Portfolio Strategies, Llc | 0.02% | 186,601 | $1,563,716 | $1,474,148 | -$89,568 | -5.73% | |
| Hudson Bay Capital Management Lp | 0.01% | 180,000 | $1,508,400 | $1,422,000 | -$86,400 | -5.73% | |
| Invesco Ltd. | 0.00% | 158,829 | $1,330,987 | $1,254,749 | -$76,238 | -5.73% | |
| Nomura Asset Management International Inc. | 0.00% | 149,000 | $1,249,000 | $1,177,100 | -$71,900 | -5.76% | |
| Bank Of New York Mellon Corp | 0.00% | 140,219 | $1,175,039 | $1,107,730 | -$67,309 | -5.73% | |
| Point72 Asset Management, L.P. | 0.00% | 139,791 | $1,171,449 | $1,104,349 | -$67,100 | -5.73% | |
| Ieq Capital, Llc | 0.01% | 139,639 | $1,170,175 | $1,103,148 | -$67,027 | -5.73% | |
| Exoduspoint Capital Management, Lp | 0.01% | 115,444 | $967,421 | $912,008 | -$55,413 | -5.73% | |
| Russell Investments Group, Ltd. | 0.00% | 113,425 | $950,504 | $896,058 | -$54,447 | -5.73% | |
| Massachusetts Financial Services Co | 0.00% | 112,011 | $938,652 | $884,887 | -$53,765 | -5.73% | |
| Alliancebernstein L.P. | 0.00% | 64,730 | $932,112 | $511,367 | -$420,745 | -45.14% | |
| Vestal Point Capital, Lp | 0.03% | 108,525 | $909,440 | $857,348 | -$52,093 | -5.73% | |
| Jane Street Group, Llc | 0.00% | 105,548 | $884,492 | $833,829 | -$50,663 | -5.73% |
Frequently asked questions about RGNX
Who owns the most RGNX stock?
The largest holders of RGNX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for REGENXBIO INC (RGNX).
Is RGNX widely held by superinvestors?
Many widely followed stocks like RGNX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RGNX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.