# REGENXBIO INC COM

REGENXBIO INC COM is a security (CUSIP 75901B107) tracked across SEC portfolio filings. 179 institutional managers reported $371.5M on Form 13F as of 2026-06-30; 16 registered fund positions totaling $13.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: REGENXBIO INC
- Class: COM
- CUSIP: 75901B107
- Asset category: EC
- 13F holders: 179
- 13F value: $371.5M
- 13F period: 2026-06-30
- N-PORT fund positions: 16
- N-PORT value: $13.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 179 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $48.6M | 3,374,140 |
| BlackRock, Inc. | New York, NY | $48.5M | 5,782,808 |
| [Redmile Group, LLC](https://search.stillhousedata.com/firm/143606) | San Francisco, CA | $36.6M | 4,368,804 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $27.1M | 3,483,800 |
| STATE STREET CORP | BOSTON, MA | $22.9M | 2,731,485 |
| MORGAN STANLEY | NEW YORK, NY | $17.3M | 2,066,157 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $15.4M | 1,839,463 |
| [Integral Health Asset Management, LLC](https://search.stillhousedata.com/firm/301987) | NEW YORK, NY | $12.6M | 1,500,000 |
| [Qube Research & Technologies Ltd](https://search.stillhousedata.com/firm/304552) | LONDON, X0 | $11.0M | 1,310,493 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $9.5M | 1,137,498 |
| [AQR CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/111883) | Greenwich, CT | $8.8M | 1,051,712 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $8.5M | 1,010,381 |
| Nuveen, LLC | CHARLOTTE, NC | $4.9M | 582,016 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $4.6M | 554,892 |
| Pale Fire Capital SE | Prague, 2N | $4.1M | 493,726 |

## Top fund holders (N-PORT)

_Showing 15 of 16 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $4.5M | 0.55% |
| [VANGUARD MARKET NEUTRAL FUND](https://search.stillhousedata.com/fund/S000019457) | VANGUARD MONTGOMERY FUNDS | $2.0M | 46.96% |
| [Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000008021) | VALIC Co II | $1.8M | 61.62% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1.7M | 0.97% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $840K | 1.12% |
| BlackRock Health Sciences Term Trust | BlackRock Health Sciences Term Trust | $681K | 6.73% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $666K | 1.38% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $521K | 6.90% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $226K | 0.14% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $210K | 0.04% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $185K | 0.06% |
| BlackRock Health Sciences Trust | BlackRock Health Sciences Trust | $154K | 2.90% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $55K | 1.31% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $14K | 0.04% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $9K | 0.07% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/75901B107.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.