Company · Ownership research

REGENXBIO Inc. RGNX

CIK 0001590877

Form 4 transactions dated Nov 1, 2023 to Nov 9, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 77 rows; the complete set is available through the API.

Insider filings on file run through Nov 3, 2026.

Insider purchases & sales

Purchased: $949.38K
Sold: $6.04M

Nov 1, 2023 – Nov 3, 2026
Available records · partial months are marked ·

202410 of 18 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Oct 1, 2024	KARABELAS ARGERIS N Director	Sale10b5-1 footnote	$101.05K 10,000 shares sold	46.98% sold Direct holding	▾
Sep 3, 2024	KARABELAS ARGERIS N Director	Sale10b5-1 footnote	$115.59K 10,000 shares sold	46.98% sold Direct holding	▾
Aug 1, 2024	KARABELAS ARGERIS N Director	Sale10b5-1 footnote	$136.45K 10,100 shares sold	47.23% sold Direct holding	▾
Aug 1, 2024	Simpson Curran Chief Executive Officer · Director	Sale10b5-1 footnote	$1.50K 100 shares sold	0.06% sold Direct holding	▾
Jul 29, 2024	KARABELAS ARGERIS N Director	Sale10b5-1 footnote	$165.50K 11,000 shares sold	49.36% sold Direct holding	▾
Jul 29, 2024	Simpson Curran Chief Executive Officer · Director	Sale10b5-1 footnote	$145.11K 9,648 shares sold	5.37% sold Direct holding	▾
Jul 25, 2024	Mills Kenneth T. Director	Sale10b5-1 footnote	$214.50K 15,369 shares sold	3.63% sold Direct holding	▾
Jul 24, 2024	Mills Kenneth T. Director	Sale10b5-1 footnote	$168.43K 12,221 shares sold	2.91% sold Direct holding	▾
Jul 17, 2024	Mills Kenneth T. Director	Sale10b5-1 footnote	$30.44K 2,210 shares sold	0.54% sold Direct holding	▾
Jul 16, 2024	Mills Kenneth T. Director	Sale10b5-1 footnote	$2.75K 200 shares sold	0.05% sold Direct holding	▾

Showing 18 / 18 record groups in 2024. The complete set is available through the API.

REGENXBIO Inc. · RGNX

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 18 of 18 purchase / sale groups and 30 of 77 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"RGNX","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.