— Know what they know.
Not Investment Advice
Also trades as: 0QYL.L (LSE) · $vol 0M · RMB.DE (XETRA) · $vol 0M

RMBS NASDAQ

Rambus Inc.
1W: +8.7% 1M: +7.8% 3M: +38.2% YTD: +42.9% 1Y: +154.8% 3Y: +169.7% 5Y: +659.6%
$142.98
+1.16 (+0.82%)
 
Weekly Expected Move ±16.5%
$85 $106 $127 $148 $169
NASDAQ · Technology · Semiconductors · Alpha Radar Buy · Power 66 · $15.5B mcap · 107M float · 2.11% daily turnover · Short 64% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
630
Institutions Holding
+11 vs prior
48.9%
Ownership
-6.36%
75 New
172 Increased
310 Reduced
126 Closed

👔 Insider Trades

25 records
Date Name Title Type Shares Price Value Filing
2026-05-01 Gagneja Sumeet officer: svp, cfo A-Grant/Award 26,802 $— $0 Filing
2026-05-01 Gagneja Sumeet officer: svp, cfo A-Grant/Award 14,518 $— $0 Filing
2026-04-24 Rao Meera director S-Sale 2,972 $150.30 $447K Filing
2026-04-14 Rao Meera director S-Sale 8,538 $118.08 $1.0M Filing
2026-04-03 Allen John K officer: chief accounting officer F-Tax Withholding 1,131 $92.22 $104K Filing
2026-04-02 Seraphin Luc officer: president and ceo S-Sale 165 $88.35 $15K Filing
2026-04-02 Seraphin Luc officer: president and ceo S-Sale 2,511 $86.04 $216K Filing
2026-04-02 Seraphin Luc officer: president and ceo S-Sale 2,750 $87.11 $240K Filing
2026-04-01 Shinn John officer: svp, general counsel A-Grant/Award 5,558 $— $0 Filing
2026-04-01 Shinn John officer: svp, general counsel F-Tax Withholding 1,913 $89.95 $172K Filing
2026-04-01 Seraphin Luc officer: president and ceo A-Grant/Award 32,684 $— $0 Filing
2026-04-01 Seraphin Luc officer: president and ceo F-Tax Withholding 12,561 $89.95 $1.1M Filing
2026-04-01 FAN XIANZHI SEAN officer: evp, coo F-Tax Withholding 9,916 $89.95 $892K Filing
2026-04-01 STANG ERIC B director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 PENG VICTOR director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 KISSNER CHARLES director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 Rao Meera director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 Sayiner Necip director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 Higashi Emiko director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 LAUB STEVEN director A-Grant/Award 2,223 $— $0 Filing
2026-04-01 Allen John K officer: chief accounting officer F-Tax Withholding 658 $89.95 $59K Filing
2026-04-01 Allen John K officer: chief accounting officer F-Tax Withholding 495 $89.95 $45K Filing
2026-04-01 Allen John K officer: chief accounting officer A-Grant/Award 2,779 $— $0 Filing
2026-04-01 FAN XIANZHI SEAN officer: evp, coo A-Grant/Award 22,234 $— $0 Filing
2026-03-03 Shinn John officer: svp, general counsel S-Sale 2,254 $92.77 $209K Filing

🏛️ Congressional Trades

2 records
Date Politician Chamber Type Amount Filing
2023-08-10 Thomas R. Carper Senate Sell $1,001 - $15,000 Filing
2023-08-10 Thomas R. Carper Senate Sell $1,001 - $15,000 Filing

🏦 Top Institutional Holders

20 holders
Holder Shares Value Date Reported Filing
BlackRock, Inc. 16,305,306 $1.4B +30,120 2026-03-31 Filing
VANGUARD PORTFOLIO MANAGEMENT LLC 6,644,320 $572M +6,644,320 2026-03-31 Filing
Invesco Ltd. 6,499,048 $559M +2,350,395 2026-03-31 Filing
VANGUARD CAPITAL MANAGEMENT LLC 4,827,854 $415M +4,827,854 2026-03-31 Filing
STATE STREET CORP 4,373,617 $376M +122,054 2026-03-31 Filing
FMR LLC 3,318,449 $285M +1,731,420 2026-03-31 Filing
GEODE CAPITAL MANAGEMENT, LLC 3,124,495 $269M +281,780 2026-03-31 Filing
DIMENSIONAL FUND ADVISORS LP 1,795,295 $154M -98,233 2026-03-31 Filing
JPMORGAN CHASE & CO 1,836,500 $146M -228,843 2026-03-31 Filing
Swedbank AB 1,563,000 $134M +200,000 2026-03-31 Filing
BANK OF AMERICA CORP /DE 1,361,570 $117M +111,928 2026-03-31 Filing
NORTHERN TRUST CORP 1,334,095 $115M +18,544 2026-03-31 Filing
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1,326,402 $114M -1,291 2026-03-31 Filing
NEUBERGER BERMAN GROUP LLC 1,302,169 $112M -3,782 2026-03-31 Filing
CONGRESS ASSET MANAGEMENT CO 1,275,978 $110M -134,637 2026-03-31 Filing
AQR CAPITAL MANAGEMENT LLC 1,250,456 $104M +539,330 2026-03-31 Filing
BARCLAYS PLC 1,095,701 $94M +72,717 2026-03-31 Filing
AMERIPRISE FINANCIAL INC 975,209 $84M +408,530 2026-03-31 Filing
UBS Group AG 956,387 $82M +500,717 2026-03-31 Filing
GOLDMAN SACHS GROUP INC 922,105 $79M -272,286 2026-03-31 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms