Company · Ownership research

RAMBUS INC RMBS

CIK 0000917273

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-08-10.

Insider purchases & sales

Purchased: $0.00
Sold: $48.77M

Sep 1, 2023 – Aug 10, 2026
Available records · partial months are marked ·

202410 of 21 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2024-12-12	Rao Meera Director	Sale	$314.85K 5,408 shares sold	15.68% sold Direct holding	▾
2024-12-12	Shinn John SVP, General Counsel	Sale	$143.12K 2,462 shares sold	10.66% sold Direct holding	▾
2024-05-08	STANG ERIC B Director	Sale	$335.10K 6,000 shares sold	18.51% sold Indirect holding	▾
2024-05-07	STANG ERIC B Director	Sale	$307.99K 5,408 shares sold	14.30% sold Indirect holding	▾
2024-04-16	Seraphin Luc President and CEO · Director	Sale10b5-1 footnote	$324.39K 5,530 shares sold	2.06% sold Direct holding	▾
2024-04-09	Seraphin Luc President and CEO · Director	Sale10b5-1 footnote	$920.28K 15,000 shares sold	5.29% sold Direct holding	▾
2024-04-02	Seraphin Luc President and CEO · Director	Sale10b5-1 footnote	$899.02K 15,000 shares sold	5.03% sold Direct holding	▾
2024-03-26	Shinn John SVP, General Counsel	Sale10b5-1 footnote	$247.50K 3,947 shares sold	19.15% sold Direct holding	▾
2024-03-26	Seraphin Luc President and CEO · Director	Sale10b5-1 footnote	$940.37K 15,000 shares sold	5.46% sold Direct holding	▾
2024-03-19	Shinn John SVP, General Counsel	Sale10b5-1 footnote	$232.35K 3,949 shares sold	16.08% sold Direct holding	▾

Showing 21 / 21 record groups in 2024. The complete set is available through the API.

RAMBUS INC · RMBS

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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 21 of 21 purchase / sale groups and 24 of 24 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"RMBS","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. 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.