NASDAQ: RMBS
Rambus Inc Stock Ownership - Who owns Rambus?

Insider buying vs selling

Have Rambus Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Necip SayinerDirector2026-06-035,000$170.15
$850.75kSell
Emiko HigashiDirector2026-06-025,000$163.00
$815.00kSell
Emiko HigashiDirector2026-06-025,000$158.00
$790.00kSell
Eric B. StangDirector2026-06-015,000$146.00
$730.00kSell
Emiko HigashiDirector2026-05-265,000$157.57
$787.85kSell
Xianzhi Sean FanEVP COO2026-05-2637,814$151.69
$5.74MSell
Xianzhi Sean FanEVP COO2026-05-26100$152.35
$15.24kSell
John ShinnSVP General Counsel2026-05-221,000$143.63
$143.63kSell
Necip SayinerDirector2026-05-089,824$130.18
$1.28MSell
Steven LaubDirector2026-05-071,500$125.52
$188.28kSell

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Net Insider Buy/Sell (L12M) Ownership

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RMBS Shareholders

What type of owners hold Rambus Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc15.08%16,305,306$1.87BInstitution
Vanguard Portfolio Management LLC6.14%6,644,320$762.30MInstitution
Invesco Ltd6.01%6,499,048$745.64MInstitution
Vanguard Capital Management LLC4.46%4,827,854$553.90MInstitution
State Street Corp4.04%4,373,617$501.79MInstitution
Price T Rowe Associates Inc3.12%3,376,689$387.41MInstitution
Fmr LLC3.07%3,318,449$380.73MInstitution
Geode Capital Management LLC2.89%3,124,495$358.47MInstitution
Geoffrey Tate2.47%2,672,456$306.61MInsider
Mike Farmwald2.21%2,394,849$274.76MInsider

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RMBS vs Semiconductor Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RMBS88.92%11.08%Net SellingNet Selling
ALGM62.16%37.84%Net SellingNet Selling
SMTC96.43%3.57%Net SellingNet Selling
FORM94.53%5.47%Net SellingNet Selling
SIMO20.19%0.84%Net SellingNet Selling

Rambus Stock Ownership FAQ

Who owns Rambus?

Rambus (NASDAQ: RMBS) is owned by 95.04% institutional shareholders, 11.84% Rambus insiders, and 0.00% retail investors. Geoffrey Tate is the largest individual Rambus shareholder, owning 2.67M shares representing 2.47% of the company. Geoffrey Tate's Rambus shares are currently valued at $331.12M.

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