REGENXBIO Inc. (RGNX) — Institutional Holders, Q2 2026
166 institutional investment managers reported a RGNX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $504.6M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
RGNX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- MARSHALL WACE, LLPNew · +1,284,950 sh+$15.4M
- CITADEL ADVISORSNew · +669,023 sh+$8.0M
- BlackRockAdded · +614,632 sh+$7.4M
- D. E. ShawAdded · +426,813 sh+$5.1M
- LAZARD ASSET MANAGEMENTNew · +370,375 sh+$4.4M
Biggest sellers
- Qube Research & Technologies LtdSold out · -1,310,493 sh-$15.7M
- JPMORGAN CHASETrimmed · -1,269,631 sh-$15.2M
- Assenagon Asset Management S.A.Trimmed · -811,332 sh-$9.7M
- Integral Health Asset ManagementTrimmed · -700,000 sh-$8.4M
- GOLDMAN SACHS GROUPTrimmed · -418,010 sh-$5.0M
RGNX 13F holders ranked 1–100 of 166
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 6,397,440 sh | 6,397,440 | $76.6M | <0.01% | +10.6% |
| 2 | Redmile Group#2 · 4,368,804 sh | 4,368,804 | $52.3M | 3.51% | 0.0% |
| 3 | STATE STREET#3 · 2,971,173 sh | 2,971,173 | $35.6M | <0.01% | +8.8% |
| 4 | JPMORGAN CHASE#4 · 2,214,169 sh | 2,214,169 | $26.2M | <0.01% | -36.4% |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 2,107,557 sh | 2,107,557 | $25.2M | <0.01% | +5.0% |
| 6 | MORGAN STANLEY#6 · 1,953,237 sh | 1,953,237 | $23.4M | <0.01% | -5.5% |
| 7 | GOLDMAN SACHS GROUP#7 · 1,421,453 sh | 1,421,453 | $17.0M | <0.01% | -22.7% |
| 8 | AQR CAPITAL MANAGEMENT#8 · 1,378,358 sh | 1,378,358 | $16.5M | <0.01% | +31.1% |
| 9 | VANGUARD PORTFOLIO MANAGEMENT#9 · 1,355,554 sh | 1,355,554 | $16.2M | <0.01% | +33.0% |
| 10 | MARSHALL WACE, LLP#10 · 1,284,950 sh | 1,284,950 | $15.4M | 0.01% | New |
| 11 | GEODE CAPITAL MANAGEMENT#11 · 1,241,296 sh | 1,241,296 | $14.9M | <0.01% | +9.1% |
| 12 | Integral Health Asset Management#12 · 800,000 sh | 800,000 | $9.6M | 0.38% | -46.7% |
| 13 | Nuveen#13 · 740,026 sh | 740,026 | $8.9M | <0.01% | +27.1% |
| 14 | DIMENSIONAL FUND ADVISORS#14 · 731,586 sh | 731,586 | $8.8M | <0.01% | -27.6% |
| 15 | D. E. Shaw#15 · 712,814 sh | 712,814 | $8.5M | <0.01% | +149.2% |
| 16 | TWO SIGMA INVESTMENTS#16 · 669,808 sh | 669,808 | $8.0M | <0.01% | +20.7% |
| 17 | CITADEL ADVISORS#17 · 669,023 sh | 669,023 | $8.0M | <0.01% | New |
| 18 | STIFEL FINANCIAL#18 · 560,727 sh | 560,727 | $6.7M | <0.01% | +42.8% |
| 19 | BANK OF AMERICA#19 · 518,545 sh | 518,545 | $6.2M | <0.01% | +59.6% |
| 20 | 22NW#20 · 492,759 sh | 492,759 | $5.9M | 5.64% | 0.0% |
| 21 | MILLENNIUM MANAGEMENT#21 · 480,762 sh | 480,762 | $5.8M | <0.01% | +68.6% |
| 22 | Pale Fire Capital SE#22 · 466,209 sh | 466,209 | $5.6M | 0.39% | -5.6% |
| 23 | NORTHERN#23 · 421,839 sh | 421,839 | $5.1M | <0.01% | +7.2% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT#24 · 396,450 sh | 396,450 | $4.7M | <0.01% | +1.5% |
| 25 | LAZARD ASSET MANAGEMENT#25 · 370,375 sh | 370,375 | $4.4M | <0.01% | New |
| 26 | FMR#26 · 342,858 sh | 342,858 | $4.1M | <0.01% | +10.1% |
| 27 | VANGUARD FIDUCIARY#27 · 337,159 sh | 337,159 | $4.0M | <0.01% | +8.0% |
| 28 | Quantinno Capital Management#28 · 300,127 sh | 300,127 | $3.6M | <0.01% | +582.9% |
| 29 | GSK plc#29 · 271,456 sh | 271,456 | $3.3M | 0.54% | 0.0% |
| 30 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#30 · 264,912 sh | 264,912 | $3.2M | <0.01% | +190.8% |
| 31 | RENAISSANCE TECHNOLOGIES#31 · 256,686 sh | 256,686 | $3.1M | <0.01% | -15.9% |
| 32 | JANE STREET GROUP#32 · 253,493 sh | 253,493 | $3.0M | <0.01% | +140.2% |
| 33 | UBS Group AG#33 · 249,947 sh | 249,947 | $3.0M | <0.01% | -2.9% |
| 34 | Jump Financial#34 · 239,700 sh | 239,700 | $2.9M | 0.02% | +8.6% |
| 35 | Hudson Bay Capital Management#35 · 225,000 sh | 225,000 | $2.7M | <0.01% | +25.0% |
| 36 | ArchPoint Investors#36 · 222,278 sh | 222,278 | $2.7M | 0.56% | 0.0% |
| 37 | Corient Private Wealth#37 · 217,661 sh | 217,661 | $2.6M | <0.01% | New |
| 38 | DEUTSCHE BANK AG\#38 · 207,835 sh | 207,835 | $2.5M | <0.01% | +5.5% |
| 39 | Walleye Capital#39 · 203,726 sh | 203,726 | $2.4M | <0.01% | New |
| 40 | Y-Intercept (Hong Kong) Ltd#40 · 181,471 sh | 181,471 | $2.2M | — | -34.0% |
| 41 | Assenagon Asset Management S.A.#41 · 169,279 sh | 169,279 | $2.0M | — | -82.7% |
| 42 | NOMURA ASSET MANAGEMENT INTERNATIONAL#42 · 149,000 sh | 149,000 | $1.8M | <0.01% | 0.0% |
| 43 | IEQ CAPITAL#43 · 141,469 sh | 141,469 | $1.7M | <0.01% | +1.3% |
| 44 | Bank of New York Mellon#44 · 134,194 sh | 134,194 | $1.6M | <0.01% | -4.3% |
| 45 | Invesco Ltd.#45 · 133,851 sh | 133,851 | $1.6M | <0.01% | -15.7% |
| 46 | Russell Investments Group, Ltd.#46 · 121,359 sh | 121,359 | $1.5M | <0.01% | +7.0% |
| 47 | Susquehanna Portfolio Strategies#47 · 119,471 sh | 119,471 | $1.4M | 0.02% | -36.0% |
| 48 | MASSACHUSETTS FINANCIAL SERVICES#48 · 107,719 sh | 107,719 | $1.3M | <0.01% | -3.8% |
| 49 | XTX Topco Ltd#49 · 107,300 sh | 107,300 | $1.3M | 0.02% | +216.5% |
| 50 | AMERIPRISE FINANCIAL#50 · 100,055 sh | 100,055 | $1.2M | <0.01% | -50.1% |
| 51 | RAYMOND JAMES FINANCIAL#51 · 92,588 sh | 92,588 | $1.1M | <0.01% | -8.6% |
| 52 | SCHRODER INVESTMENT MANAGEMENT GROUP#52 · 91,481 sh | 91,481 | $1.1M | <0.01% | New |
| 53 | Trexquant Investment#53 · 86,420 sh | 86,420 | $1.0M | <0.01% | New |
| 54 | MIRAE ASSET GLOBAL ETFS Ltd.#54 · 78,364 sh | 78,364 | $937.9K | <0.01% | +34.3% |
| 55 | CITIGROUP#55 · 78,022 sh | 78,022 | $934.7K | <0.01% | +204.2% |
| 56 | WELLS FARGO & COMPANY#56 · 77,852 sh | 77,852 | $932.7K | <0.01% | +54.2% |
| 57 | BALYASNY ASSET MANAGEMENT L.P.#57 · 74,047 sh | 74,047 | $887.1K | <0.01% | +535.3% |
| 58 | ACT CAPITAL MANAGEMENT#58 · 67,500 sh | 67,500 | $808.6K | 0.53% | +20.5% |
| 59 | PRICE T ROWE ASSOCIATES#59 · 63,126 sh | 63,126 | $757.0K | <0.01% | +23.5% |
| 60 | RHUMBLINE ADVISERS#60 · 59,783 sh | 59,783 | $716.2K | <0.01% | -1.2% |
| 61 | Rafferty Asset Management#61 · 54,451 sh | 54,451 | $652.3K | <0.01% | -26.3% |
| 62 | WEALTH ENHANCEMENT ADVISORY SERVICES#62 · 45,090 sh | 45,090 | $629.0K | — | +1.4% |
| 63 | BNP PARIBAS FINANCIAL MARKETS#63 · 51,549 sh | 51,549 | $617.6K | <0.01% | +137.5% |
| 64 | SIMPLEX TRADING#64 · 49,244 sh | 49,244 | $589.9K | <0.01% | New |
| 65 | Virtus Investment Advisers#65 · 49,129 sh | 49,129 | $588.6K | 0.14% | +149.9% |
| 66 | DekaBank Deutsche Girozentrale#66 · 74,600 sh | 74,600 | $577.0K | — | 0.0% |
| 67 | NewEdge Wealth#67 · 47,700 sh | 47,700 | $571.4K | <0.01% | New |
| 68 | Cerity Partners#68 · 47,643 sh | 47,643 | $570.8K | <0.01% | -18.4% |
| 69 | BARCLAYS PLC#69 · 44,067 sh | 44,067 | $527.9K | <0.01% | -34.6% |
| 70 | Aquatic Capital Management#70 · 43,998 sh | 43,998 | $527.1K | 0.02% | New |
| 71 | ALLIANCEBERNSTEIN L.P.#71 · 61,330 sh | 61,330 | $513.9K | <0.01% | -5.3% |
| 72 | ALGERT GLOBAL#72 · 41,060 sh | 41,060 | $491.9K | <0.01% | +71.8% |
| 73 | Voleon Capital Management#73 · 40,549 sh | 40,549 | $485.8K | <0.01% | -3.8% |
| 74 | FRANKLIN RESOURCES#74 · 38,680 sh | 38,680 | $463.4K | <0.01% | +130.2% |
| 75 | Mariner#75 · 38,162 sh | 38,162 | $457.2K | <0.01% | +0.4% |
| 76 | Connor, Clark & Lunn Investment Management Ltd.#76 · 37,657 sh | 37,657 | $451.1K | <0.01% | -55.8% |
| 77 | HSBC PLC#77 · 36,402 sh | 36,402 | $437.6K | <0.01% | -34.8% |
| 78 | Engineers Gate Manager#78 · 34,400 sh | 34,400 | $412.1K | <0.01% | -46.0% |
| 79 | HARBOR CAPITAL ADVISORS#79 · 33,929 sh | 33,929 | $406.0K | — | -30.0% |
| 80 | Brevan Howard Capital Management#80 · 33,177 sh | 33,177 | $397.5K | <0.01% | +75.5% |
| 81 | Rockefeller Capital Management L.P.#81 · 31,502 sh | 31,502 | $377.4K | <0.01% | 0.0% |
| 82 | MERCER GLOBAL ADVISORS#82 · 31,444 sh | 31,444 | $376.7K | <0.01% | +31.9% |
| 83 | Palogic Value Management, L.P.#83 · 30,040 sh | 30,040 | $359.9K | 0.12% | +0.1% |
| 84 | GREAT WEST LIFE ASSURANCE#84 · 27,558 sh | 27,558 | $330.0K | <0.01% | -2.5% |
| 85 | PROFUND ADVISORS#85 · 27,486 sh | 27,486 | $329.3K | <0.01% | -16.8% |
| 86 | MetLife Investment Management#86 · 27,254 sh | 27,254 | $326.5K | <0.01% | +36.1% |
| 87 | SG Americas Securities#87 · 27,203 sh | 27,203 | $326.0K | <0.01% | +37.1% |
| 88 | Lion Point Capital#88 · 26,600 sh | 26,600 | $318.7K | 1.52% | 0.0% |
| 89 | WINTON GROUP Ltd#89 · 24,200 sh | 24,200 | $289.9K | <0.01% | New |
| 90 | TUDOR INVESTMENT ET AL#90 · 23,854 sh | 23,854 | $285.8K | <0.01% | -1.9% |
| 91 | INCEPTIONR#91 · 23,605 sh | 23,605 | $282.8K | 0.07% | +130.3% |
| 92 | GSA CAPITAL PARTNERS LLP#92 · 22,607 sh | 22,607 | $271.0K | 0.02% | New |
| 93 | PEAK6#93 · 22,000 sh | 22,000 | $263.6K | <0.01% | New |
| 94 | Creative Planning#94 · 20,781 sh | 20,781 | $249.0K | <0.01% | -30.7% |
| 95 | DnB Asset Management AS#95 · 19,365 sh | 19,365 | $232.0K | <0.01% | -4.7% |
| 96 | SRS Capital Advisors#96 · 19,256 sh | 19,256 | $230.7K | <0.01% | +2495.1% |
| 97 | Vanguard Global Advisers#97 · 18,588 sh | 18,588 | $222.7K | <0.01% | 0.0% |
| 98 | AXQ CAPITAL#98 · 18,446 sh | 18,446 | $221.0K | 0.02% | New |
| 99 | Landing Point Financial Group#99 · 18,217 sh | 18,217 | $218.2K | 0.07% | -5.2% |
| 100 | Quadrature Capital Ltd#100 · 16,277 sh | 16,277 | $195.0K | <0.01% | New |
Funds that sold out of RGNX in Q2 2026 (36)
Held RGNX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Qube Research & Technologies Ltd1,310,493 sh | 1,310,493 | $11.0M |
| HRT FINANCIAL351,489 sh | 351,489 | $2.9M |
| Voss Capital295,787 sh | 295,787 | $2.5M |
| Prosight Management200,000 sh | 200,000 | $1.7M |
| Man Group plc187,625 sh | 187,625 | $1.6M |
| Point72 Asset Management, L.P.139,791 sh | 139,791 | $1.2M |
| ExodusPoint Capital Management115,444 sh | 115,444 | $967.4K |
| Vestal Point Capital108,525 sh | 108,525 | $909.4K |
| PANAGORA ASSET MANAGEMENT102,140 sh | 102,140 | $855.9K |
| Centiva Capital100,000 sh | 100,000 | $838.0K |
| LEUCADIA NATIONAL95,400 sh | 95,400 | $799.5K |
| Hennion & Walsh Asset Management88,385 sh | 88,385 | $740.7K |
| Birchview Capital66,270 sh | 66,270 | $555.3K |
| ADAR1 Capital Management44,416 sh | 44,416 | $372.2K |
| ALPS ADVISORS42,012 sh | 42,012 | $352.1K |
| Ionic Capital Management41,500 sh | 41,500 | $347.8K |
| Militia Capital Management33,500 sh | 33,500 | $280.7K |
| BRADLEY FOSTER & SARGENT26,699 sh | 26,699 | $223.7K |
| Polymer Capital Management (US)23,752 sh | 23,752 | $199.0K |
| STATE OF WISCONSIN INVESTMENT BOARD22,352 sh | 22,352 | $187.3K |
| Mitsubishi UFJ Asset Management , Ltd.20,870 sh | 20,870 | $174.9K |
| Squarepoint Ops16,981 sh | 16,981 | $142.3K |
| Diversified15,499 sh | 15,499 | $129.9K |
| Schonfeld Strategic Advisors14,151 sh | 14,151 | $118.6K |
| PRUDENTIAL FINANCIAL12,410 sh | 12,410 | $104.0K |
| Graham Capital Management, L.P.12,339 sh | 12,339 | $103.4K |
| Virtu Financial11,614 sh | 11,614 | $97.0K |
| INTECH INVESTMENT MANAGEMENT10,435 sh | 10,435 | $87.4K |
| QUADRANT CAPITAL GROUP1,346 sh | 1,346 | $54.6K |
| ACADIAN ASSET MANAGEMENT3,233 sh | 3,233 | $27.0K |
| MAI Capital Management1,158 sh | 1,158 | $9.7K |
| Advisory Services Network556 sh | 556 | $4.7K |
| Western Wealth Management400 sh | 400 | $3.4K |
| Root Financial Partners202 sh | 202 | $1.7K |
| Basecamp Wealth Advisors107 sh | 107 | $897.00 |
| TWIN PEAKS WEALTH ADVISORS5 sh | 5 | $42.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.