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REGENXBIO Inc.

RGNX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001590877

In the last 90 days, REGENXBIO Inc. insiders filed 1 open-market purchase and 1 sale; 165 institutions reported holding it in 13F filings for Q2 2026, worth $504.6M in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in REGENXBIO Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
174
+10 vs. Q3 2025
Shares held
41.1M
−135.3K (−0.3%) vs. Q3 2025
Total value
$593.1M
+$194.7M (+48.9%) vs. Q3 2025
New holders
24
62 more added
Sold out
14
60 more reduced

2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting RGNX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 174 institutions
Q1 2021: 184 institutionsQ2 2021: 172 institutionsQ3 2021: 183 institutionsQ4 2021: 172 institutionsQ1 2022: 187 institutionsQ2 2022: 166 institutionsQ3 2022: 183 institutionsQ4 2022: 182 institutionsQ1 2023: 175 institutionsQ2 2023: 167 institutionsQ3 2023: 160 institutionsQ4 2023: 171 institutionsQ1 2024: 188 institutionsQ2 2024: 181 institutionsQ3 2024: 186 institutionsQ4 2024: 177 institutionsQ1 2025: 164 institutionsQ2 2025: 159 institutionsQ3 2025: 166 institutionsQ4 2025: 174 institutionsQ1 2026: 178 institutionsQ2 2026: 165 institutions
Value heldQ4 2025: $593.1M
Q1 2021: $1.12BQ2 2021: $1.30BQ3 2021: $1.40BQ4 2021: $1.16BQ1 2022: $1.16BQ2 2022: $895.7MQ3 2022: $926.6MQ4 2022: $808.9MQ1 2023: $700.0MQ2 2023: $742.1MQ3 2023: $610.3MQ4 2023: $684.3MQ1 2024: $896.6MQ2 2024: $511.9MQ3 2024: $458.1MQ4 2024: $325.2MQ1 2025: $298.0MQ2 2025: $344.9MQ3 2025: $399.2MQ4 2025: $593.1MQ1 2026: $355.1MQ2 2026: $504.6M
Institutions holding RGNX and their total value by quarter
QuarterHoldersValue
Q2 2026165$504.6M
Q1 2026178$355.1M
Q4 2025174$593.1M
Q3 2025166$399.2M
Q2 2025159$344.9M
Q1 2025164$298.0M
Q4 2024177$325.2M
Q3 2024186$458.1M
Q2 2024181$511.9M
Q1 2024188$896.6M
Q4 2023171$684.3M
Q3 2023160$610.3M
Q2 2023167$742.1M
Q1 2023175$700.0M
Q4 2022182$808.9M
Q3 2022183$926.6M
Q2 2022166$895.7M
Q1 2022187$1.16B
Q4 2021172$1.16B
Q3 2021183$1.40B
Q2 2021172$1.30B
Q1 2021184$1.12B

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding REGENXBIO Inc.; share changes are against Q3 2025.

Institutions holding RGNX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Brevan Howard Capital Management LP16,840$242.5K0.00%+448+2.7%Added
Susquehanna International Group, LLP15,624$225.0K0.00%−75,684−82.9%Reduced
Pallas Capital Advisors LLC15,545$223.8K0.01%+385+2.5%Added
Captrust Financial Advisors15,228$219.3K0.00%+1,781+13.2%Added
SEI Investments Co14,920$214.8K0.00%−111−0.7%Reduced
Manufacturers Life Insurance Company, The14,162$203.9K0.00%−1,494−9.5%Reduced
New York State Common Retirement Fund13,746$197.9K0.00%00.0%Unchanged
Diversified Trust Co13,378$192.6K0.00%+2,615+24.3%Added
Police & Firemen's Retirement System of New Jersey13,073$188.3K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA13,010$187.3K0.00%−4,714−26.6%Reduced
Erste Asset Management GmbH13,000$185.9K0.00%00.0%Unchanged
Buckingham Strategic Partners12,676$182.5K0.00%+2,455+24.0%Added
Thrivent Financial for Lutherans12,205$176.0K0.00%−22,798−65.1%Reduced
State Board of Administration of Florida Retirement System11,615$167.3K0.00%00.0%Unchanged
Headlands Technologies LLC11,545$166.2K0.01%+11,545New
Bridgefront Capital, LLC11,042$159.0K0.04%+11,042New
ProShare Advisors LLC10,750$154.8K0.00%+10,750New
Balyasny Asset Management LLC10,425$150.1K0.00%+10,425New
Russell Investments Group, Ltd.9,687$139.5K0.00%−1,488−13.3%Reduced
Citigroup Inc9,259$133.3K0.00%+5,026+118.7%Added
China Universal Asset Management Co., Ltd.8,249$118.8K0.01%−605−6.8%Reduced
Simplex Trading, LLC6,234$89.8K0.00%−6,143−49.6%Reduced
Public Employees Retirement Association of Colorado6,040$87.0K0.00%00.0%Unchanged
Quest Partners LLC5,255$75.7K0.00%−37,649−87.8%Reduced
Jones Financial Companies LLLP4,270$61.5K0.00%+137+3.3%Added
Ameritas Investment Partners, Inc.4,037$58.1K0.00%00.0%Unchanged
Legal & General Group Plc4,022$57.9K0.00%−288−6.7%Reduced
Essential Partners LLC3,280$47.2K0.01%+791+31.8%Added
California State Teachers Retirement System2,881$41.5K0.00%−457−13.7%Reduced
Sterling Capital Management LLC2,697$38.8K0.00%−531−16.4%Reduced
US Bancorp2,654$38.2K0.00%00.0%Unchanged
State of Alaska, Department of Revenue2,597$37.0K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC2,505$36.1K0.00%+534+27.1%Added
Mirae Asset Global Investments Co., Ltd.2,460$35.4K0.00%+507+26.0%Added
Nisa Investment Advisors, LLC2,225$32.0K0.00%+661+42.3%Added
GAMMA Investing LLC2,193$31.6K0.00%+205+10.3%Added
Signaturefd, LLC2,000$28.8K0.00%00.0%Unchanged
Royal Bank of Canada1,777$26.0K0.00%−45,146−96.2%Reduced
Versant Capital Management, Inc1,709$24.6K0.00%00.0%Unchanged
Allworth Financial LP1,553$22.4K0.00%+415+36.5%Added
Optiver Holding B.V.1,546$22.3K0.00%+1,100+246.6%Added
Covestor Ltd1,530$22.0K0.01%−199−11.5%Reduced
Amalgamated Bank1,470$21.0K0.00%−119−7.5%Reduced
Advisor Group Holdings, Inc.1,452$20.9K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)1,370$19.7K0.00%−314−18.6%Reduced
Country Trust Bank1,000$14.4K0.00%00.0%Unchanged
Ancora Advisors, LLC1,000$14.4K0.00%00.0%Unchanged
GF Fund Management Co. Ltd.994$14.3K0.00%−93−8.6%Reduced
Group One Trading, L.P.804$11.6K0.00%+804New
Tower Research Capital LLC (TRC)743$10.7K0.00%−2,708−78.5%Reduced
Steward Partners Investment Advisory, LLC663$9.55K0.00%−12,500−95.0%Reduced
Quadrant Capital Group LLC654$9.42K0.00%+528+419.0%Added
UBS Asset Management Americas Inc654$9.42K0.00%+654New
IFP Advisors, Inc629$9.06K0.00%+284+82.3%Added
Rothschild Investment LLC617$8.88K0.00%+177+40.2%Added
True Wealth Design, LLC519$7.47K0.00%+83+19.0%Added
Spire Wealth Management500$7.20K0.00%+500New
Farther Finance Advisors, LLC419$6.03K0.00%+399+1,995.0%Added
Eastern Bank370$5.33K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.342$4.93K0.00%−22,820−98.5%Reduced
SBI Securities Co., Ltd.244$3.51K0.00%+4+1.7%Added
Dynamic Wealth Strategies, LLC191$2.75K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.170$2.45K0.00%−148−46.5%Reduced
Glen Eagle Advisors, LLC150$2.16K0.00%00.0%Unchanged
Daiwa Securities Group Inc.146$2.00K0.00%00.0%Unchanged
MAI Capital Management119$1.71K0.00%−86−42.0%Reduced
UMA Financial Services, Inc.113$1.63K0.00%00.0%Unchanged
Harbour Investments, Inc.93$1.34K0.00%+93New
Parallel Advisors, LLC67$9650.00%00.0%Unchanged
Sunbelt Securities, Inc.55$7920.00%00.0%Unchanged
SJS Investment Consulting Inc.52$7490.00%+52New
Clearstead Advisors, LLC32$4610.00%−431−93.1%Reduced
Global Retirement Partners, LLC22$3170.00%00.0%Unchanged
Larson Financial Group LLC8$1150.00%00.0%Unchanged
Invenomic Capital Management LP0$00.00%−426,904−100.0%Sold out
Macquarie Group Ltd0$00.00%−149,000−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−56,029−100.0%Sold out
Engineers Gate Manager LP0$00.00%−29,730−100.0%Sold out
Sherbrooke Park Advisers LLC0$00.00%−13,005−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−10,348−100.0%Sold out
Algert Global LLC0$00.00%−10,040−100.0%Sold out
FNY Investment Advisers, LLC0$00.00%−4,995−100.0%Sold out
Caption Management, LLC0$00.00%−4,123−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−3,806−100.0%Sold out
Foster Dykema Cabot & Partners, LLC0$00.00%−1,946−100.0%Sold out
Advisory Services Network, LLC0$00.00%−200−100.0%Sold out
Principal Securities, Inc.0$00.00%−59−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−16−100.0%Sold out
Cubist Systematic Strategies, LLC––––Not filed
Point72 Asia (Singapore) Pte. Ltd.––––Not filed