Rambus Ownership & Insider Activity

Rambus (RMBS) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 8.8% of shares outstanding. Institutional investors hold 74.2%. Over the past 90 days, insiders made 1 sale worth $505K.

Shares Outstanding

108.462M

Shares Float

80.018M

Insider Shares Owned

9.530M

Insider % Owned

8.8%

Institutional Shares Held

80.491M

Institutional % Held

74.2%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$505K total

Net Activity

Net Selling

Net Value (90d)

-$505K

Rambus Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Aug 7, 2026	CHARLES KISSNER	—	SELL	5.000K	$100.92	$505K
Jun 3, 2026	Necip Sayiner	—	SELL	5.000K	$170.15	$851K
Jun 2, 2026	Emiko Higashi	—	SELL	10.000K	$160.50	$1.6M
Jun 1, 2026	ERIC STANG	—	SELL	5.000K	$146.00	$730K
May 26, 2026	Emiko Higashi	—	SELL	5.000K	$157.57	$788K
May 26, 2026	SEAN XIANZHI FAN	EVP, COO	SELL	37.914K	$151.69	$5.8M
May 22, 2026	John Shinn	SVP, GENERAL COUNSEL	SELL	1.000K	$143.63	$144K
May 8, 2026	Necip Sayiner	—	SELL	9.824K	$130.18	$1.3M
May 7, 2026	STEVEN LAUB	—	SELL	1.500K	$125.52	$188K
Apr 24, 2026	Meera Rao	—	SELL	2.972K	$150.30	$447K
Apr 14, 2026	Meera Rao	—	SELL	8.538K	$118.08	$1.0M
Apr 1, 2026	Luc Seraphin	PRESIDENT AND CEO	GRANT	14.697K	$88.96	$1.6M

Date	Member	Party	Chamber	Action	Amount
Aug 10, 2023	Thomas R. Carper	D	Senate	Sale	$1,001 - $15,000