Rambus Ownership | Who Owns Rambus?


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Rambus Ownership Summary


Rambus is owned by 88.85% institutional investors, 0.69% insiders, and 10.46% retail investors. Blackrock is the largest institutional shareholder, holding 14.60% of RMBS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.19% of its assets in Rambus shares.

RMBS Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockRambus88.85%0.69%10.46%
SectorTechnology Stocks 52.78%10.49%36.73%
IdeaSemiconductor Stocks List 68.27%6.60%25.12%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock15.79M14.60%$927.60M
Vanguard group11.79M10.91%$692.73M
Jpmorgan chase6.59M6.10%$387.49M
Wellington management group llp6.20M5.74%$364.49M
State street4.65M4.31%$273.49M
Geode capital management2.60M2.41%$152.82M
Bank of new york mellon2.24M2.07%$131.46M
Neuberger berman group1.88M1.74%$110.64M
Dimensional fund advisors lp1.80M1.66%$105.67M
Invesco1.72M1.59%$101.14M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Barington capital group130.10K8.75%$7.64M
Mesirow institutional investment management285.26K1.47%$16.76M
Penn capital management company205.96K1.15%$12.14M
Yorktown management & research17.80K1.12%$1.05M
Emerald advisers394.96K0.97%$23.21M
Emerald mutual fund advisers trust306.69K0.94%$18.02M
Vaughan nelson investment management1.11M0.60%$64.98M
Crestline management, lp131.02K0.60%$7.70M
Moody aldrich partners50.66K0.58%$2.98M
Truvestments capital15.81K0.37%$929.23K

Top Buyers

HolderShares% AssetsChange
Wellington management group llp6.20M0.07%2.09M
Norges bank1.29M0.01%1.29M
Swedbank ab1.55M0.12%556.85K
Aqr capital management572.93K0.05%486.08K
American century companies1.05M0.04%410.33K

Top Sellers

HolderShares% AssetsChange
Hood river capital management---2.17M
Neuberger berman group1.88M0.09%-1.63M
Rafferty asset management---871.31K
Ameriprise financial788.32K0.01%-844.78K
Fred alger management55.81K0.02%-663.96K

New Positions

HolderShares% AssetsChangeValue
Norges bank1.29M0.01%1.29M$75.60M
Corebridge financial194.07K0.06%194.07K$11.40M
Mirae asset global etfs175.06K0.02%175.06K$10.29M
Granahan investment management86.43K0.20%86.43K$5.08M
Twin tree management, lp63.00K0.01%63.00K$3.70M

Sold Out

HolderChange
Tfc financial management-1.00
Albion financial group /ut-3.00
Tfo-tdc-4.00
Sound income strategies-6.00
Cva family office-9.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2024377-5.04%96,039,948-0.00%881.13%173-17.62%15014.50%
Mar 31, 2024397-5.70%96,040,379-0.06%881.12%2103.45%131-14.38%
Dec 31, 202342113.48%96,096,119-1.31%891.10%2037.98%15329.66%
Sep 30, 2023371-11.24%97,372,3682.52%891.18%188-21.01%118-6.35%
Jun 30, 202341817.09%94,982,2311.32%871.16%23848.75%126-9.35%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv3.40M3.19%-12.83K
iShares Core S&P Mid-Cap ETF3.39M3.18%1.84K
iShares Russell 2000 ETF2.80M2.63%-6.30K
Vanguard Small Cap Index2.70M2.53%5.30K
Invesco Small Cap Value A2.48M2.33%2.48M
Vanguard Information Technology ETF1.88M1.76%8.61K
Vanguard Institutional Extnd Mkt Idx Tr1.61M1.51%-35.77K
Swedbank Robur Technology A1.50M1.41%-
Vanguard Small Cap Growth Index Inv1.48M1.39%-1.66K
Vanguard Explorer Inv1.31M1.22%1.26M

Recent Insider Transactions


DateNameRoleActivityValue
May 08, 2024STANG ERIC B-Sell$335.10K
May 07, 2024STANG ERIC B-Sell$307.99K
Apr 16, 2024Seraphin Luc President and CEOSell$31.09K
Apr 16, 2024Seraphin Luc President and CEOSell$293.30K
Apr 09, 2024Seraphin Luc President and CEOSell$306.77K

Insider Transactions Trends


DateBuySell
2024 Q3--
2024 Q2-8
2024 Q1-19
2023 Q4-7
2023 Q3-2

RMBS Ownership FAQ


Who owns the most shares of Rambus?

Rambus’s largest shareholders are Blackrock (15.79M shares, 14.60%), Vanguard group (11.79M shares, 10.91%), and Jpmorgan chase (6.59M shares, 6.10%). Together, they hold 31.61% of Rambus’s total shares outstanding.

Does Blackrock own Rambus?

Yes, BlackRock owns 14.60% of Rambus, totaling 15.79M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 927.6M$. In the last quarter, BlackRock increased its holdings by 345.25K shares, a 2.24% change.

Who is Rambus’s biggest shareholder by percentage of total assets invested?

Barington capital group is Rambus’s biggest shareholder by percentage of total assets invested, with 8.75% of its assets in 130.1K Rambus shares, valued at 7.64M$.

Who is the top mutual fund holder of Rambus shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Rambus shares, with 3.19% of its total shares outstanding invested in 3.4M Rambus shares.

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