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Public ownership evidence

REGENXBIO Inc. (RGNX) Ownership Disclosures

Read RGNX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T23:32:50.005Z

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2026-08-282026-08-27Ciongoli Gregory AustinP53,407Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-27 and its public availability date is 2026-08-28. Subtracting those calendar dates gives 1 day of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code P: a purchase. A purchase code is only one eligibility check. Confirm reporting-owner role, amendment lineage and coverage before treating it as a strategy input.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0002023732-26-000008 ↗SEC 0002023732-26-000008 ↗SEC 0002023732-26-000008 ↗

Recent Form 4 activity

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2026-08-282026-08-27Ciongoli Gregory AustinP53,407Not reported
2026-08-282026-08-26Ciongoli Gregory AustinP49,196Not reported
2026-08-282026-08-25Ciongoli Gregory AustinA15,432Not reported
2026-08-282026-08-25Ciongoli Gregory AustinA69,609Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Advisors Asset Management, Inc.2021-12-312026-08-284,682$153,101None
Advisors Asset Management, Inc.2020-06-302026-08-282,421$89,165None
Advisors Asset Management, Inc.2021-09-302026-08-284,727$198,000None
Corient Private Wealth LP2026-06-302026-08-28217,661$2,607,580None
Advisors Asset Management, Inc.2020-12-312026-08-274,868$221,000None
Advisors Asset Management, Inc.2022-03-312026-08-273,887$129,010None
Advisors Asset Management, Inc.2021-03-312026-08-274,748$161,954None
Advisors Asset Management, Inc.2021-06-302026-08-274,730$184,000None
Advisors Asset Management, Inc.2020-09-302026-08-274,511$124,143None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25662$7,931None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-257,931$662,000None
Assenagon Asset Management S.A.2026-06-302026-08-22169,279$2,027,962None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2031,444$376,699None
Corient Private Wealth LP2026-06-302026-08-18206,756$2,476,938None
SEI INVESTMENTS CO2026-06-302026-08-1515,419$184,720None
Glen Eagle Advisors, LLC2026-06-302026-08-15150$1,797None
Rafferty Asset Management, LLC2026-06-302026-08-1554,451$652,323None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-15119,471$1,431,263None
Quarry LP2026-06-302026-08-15164$1,965None
Militia Capital Partners, LP2025-12-312026-08-1523,600$339,840None
Militia Capital Partners, LP2025-09-302026-08-1523,600$227,740None
Militia Capital Partners, LP2025-06-302026-08-1523,600$193,756None
XTX Topco Ltd2026-06-302026-08-15107,300$1,285,454None
Aquatic Capital Management LLC2026-06-302026-08-1543,998$527,096None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15396,450$4,749,471None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15396,450$4,749,471None
Caption Management, LLC2026-06-302026-08-15100,000$1,198,000Call
OSAIC HOLDINGS, INC.2026-06-302026-08-1525$300None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,638$19,623None
Trexquant Investment LP2026-06-302026-08-1586,420$1,035,312None
MetLife Investment Management, LLC2026-06-302026-08-1527,254$326,503None
Engineers Gate Manager LP2026-06-302026-08-1534,400$412,112None
JANE STREET GROUP, LLC2026-06-302026-08-1590,051$1,078,811None
JANE STREET GROUP, LLC2026-06-302026-08-15163,442$1,958,035None
JANE STREET GROUP, LLC2026-06-302026-08-1518,400$220,432Put
JANE STREET GROUP, LLC2026-06-302026-08-1521,400$256,372Call
Legal & General Group Plc2026-06-302026-08-154,680$56,066None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15222,800$2,669,144Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1591,700$1,098,566Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15264,912$3,173,646None
Ancora Advisors LLC2026-06-302026-08-151,000$11,980None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-15118$1,414None
Hudson Bay Capital Management LP2026-06-302026-08-15225,000$2,695,500None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15480,762$5,759,529None
22NW, LP2026-06-302026-08-15492,759$5,903,253None
Palogic Value Management, L.P.2026-06-302026-08-1530,040$359,879None
Boxer Capital Management, LLC2026-06-302026-08-1515,000$179,700None
LAZARD ASSET MANAGEMENT LLC2026-06-302026-08-15370,375$4,437,093None
Balyasny Asset Management L.P.2026-06-302026-08-1574,047$887,083None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-158,550$89,604None

90-day public filing window, up to 50 source positions.

Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.