Rambus Inc (RMBS) Ownership

55.15 ↑1.65 (3.08%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

BlackRock Inc is the biggest individual institutional holder of Rambus Inc (RMBS), owning a total of 15.8 million shares. Combined, the top 37 institutional holders of RMBS own 84.68% of the company with a total of 90.6 million shares.

In the latest ownership report on September 30th 2024, the top 37 institutional holders decreased their combined ownership of RMBS by 2.5 million shares. 10 institutions bought 5,019,034 total additional shares and increased their ownership by an average of 70.74%. However 8 institutions sold 7,543,350 total shares and decreased their ownership by an average of 16.41%.

Overall this is a negative sign as the number of shares owned by the top 20 institutional holders of Rambus decreased by a net total of -2,524,316 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Vanguard Group Inc	11.788%	6.567%	12,563,334	774,156	2024-09-30
State Street Corp	4.522%	3.542%	4,819,125	164,830	2024-09-30
JPMorgan Chase & Co	3.862%	-37.593%	4,115,395	-2,479,074	2024-09-30
Amvescap Plc.	2.727%	68.816%	2,905,795	1,184,513	2024-09-30
Geode Capital Management, LLC	2.460%	0.810%	2,621,342	21,053	2024-09-30
Bank of New York Mellon Corp	2.030%	-3.311%	2,163,199	-74,068	2024-09-30
Dimensional Fund Advisors, Inc.	1.653%	-2.071%	1,761,248	-37,237	2024-09-30
Neuberger Berman Group LLC	1.640%	-7.206%	1,747,263	-135,675	2024-09-30
Swedbank AB	1.636%	12.463%	1,743,000	193,150	2024-09-30
Morgan Stanley - Brokerage Accounts	1.493%	-3.733%	1,590,777	-61,687	2024-09-30
Vaughan Nelson Scarbrgh & Mccullough LP	1.373%	32.300%	1,462,932	357,160	2024-09-30
Wellington Management Company LLP	1.369%	-76.484%	1,458,731	-4,744,367	2024-09-30
Westwood Holdings Group Inc	1.342%	196.194%	1,429,896	947,140	2024-09-30
Northern Trust Corp	1.213%	-0.293%	1,292,454	-3,800	2024-09-30
Assenagon Asset Management SA	1.189%	339.301%	1,266,780	978,417	2024-09-30
Charles Schwab Investment Management Inc	1.167%	-0.595%	1,243,985	-7,442	2024-09-30
ING Investment Management LLC	1.096%	42.798%	1,168,182	350,118	2024-09-30
American Century Companies Inc	1.034%	4.604%	1,101,874	48,497	2024-09-30

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
BlackRock Inc	14.812%	2.236%	15,786,205	345,248	2024-06-30
Vanguard Group Inc	11.788%	6.567%	12,563,334	774,156	2024-09-30
State Street Corp	4.522%	3.542%	4,819,125	164,830	2024-09-30
State Street Corporation	4.120%	4.330%	4,436,516	184,130	2024-03-31
JPMorgan Chase & Co	3.862%	-37.593%	4,115,395	-2,479,074	2024-09-30
Amvescap Plc.	2.727%	68.816%	2,905,795	1,184,513	2024-09-30
Geode Capital Management, LLC	2.460%	0.810%	2,621,342	21,053	2024-09-30
Lord, Abbett & Co LLC	2.302%	64.325%	2,499,638	978,484	2023-12-31
Hood River Capital Management LLC	2.032%	5.710%	2,165,548	116,976	2024-06-30
Bank of New York Mellon Corp	2.030%	-3.311%	2,163,199	-74,068	2024-09-30
Whale Rock Capital Management LLC	1.754%	146.816%	1,885,137	1,121,355	2023-09-30
Millennium Management LLC	1.708%	817.529%	1,853,969	1,651,908	2023-12-31
Dimensional Fund Advisors, Inc.	1.653%	-2.071%	1,761,248	-37,237	2024-09-30
Neuberger Berman Group LLC	1.640%	-7.206%	1,747,263	-135,675	2024-09-30
Swedbank AB	1.636%	12.463%	1,743,000	193,150	2024-09-30
Ameriprise Financial Inc	1.517%	12.013%	1,633,098	175,149	2024-03-31
Morgan Stanley - Brokerage Accounts	1.493%	-3.733%	1,590,777	-61,687	2024-09-30
Polar Capital Holdings PLC	1.392%	6.867%	1,511,521	97,127	2023-12-31
Vaughan Nelson Scarbrgh & Mccullough LP	1.373%	32.300%	1,462,932	357,160	2024-09-30
Wellington Management Company LLP	1.369%	-76.484%	1,458,731	-4,744,367	2024-09-30
Westwood Holdings Group Inc	1.342%	196.194%	1,429,896	947,140	2024-09-30
Northern Trust Corp	1.213%	-0.293%	1,292,454	-3,800	2024-09-30
NORGES BANK	1.207%	3.598%	1,286,532	44,686	2024-06-30
Loomis, Sayles & Company LP	1.169%	-10.886%	1,269,321	-155,060	2023-12-31
Assenagon Asset Management SA	1.189%	339.301%	1,266,780	978,417	2024-09-30
Charles Schwab Investment Management Inc	1.167%	-0.595%	1,243,985	-7,442	2024-09-30
Nuveen Asset Management, LLC	1.160%	-23.155%	1,236,278	-372,508	2024-06-30
ING Investment Management LLC	1.096%	42.798%	1,168,182	350,118	2024-09-30
Goldman Sachs Group Inc	1.085%	-31.961%	1,168,159	-548,729	2024-03-31
Silvercrest Asset Management Group LLC	1.068%	-3.043%	1,165,340	-36,572	2023-03-31
Acadian Asset Management LLC	1.060%	0.000%	1,154,039	1,154,039	2022-09-30
American Century Companies Inc	1.034%	4.604%	1,101,874	48,497	2024-09-30
CapTrust Financial Advisors	1.028%	-12.993%	1,095,394	-163,582	2024-06-30
D. E. Shaw & Co LP	0.981%	-12.500%	1,070,599	-152,948	2023-03-31
T. Rowe Price Associates, Inc.	0.988%	0.752%	1,064,297	7,947	2024-06-30
Principal Financial Group Inc	0.861%	41.562%	939,302	275,774	2023-06-30
Shannon River Fund Management LLC	0.847%	16.461%	910,556	128,701	2022-06-30

Mutual Fund Ownership

Sapphire Star Capital Small Cap Growth is the biggest individual fund holder of Rambus Inc (RMBS), owning a total of 9.1 million shares. Combined, the top 53 mutual fund holders of RMBS own 75.63% of the company with a total of 81.3 million shares.

In the latest ownership report on November 30th 2024, the top 53 fund holders increased their combined ownership of RMBS by 30 thousand shares. 4 funds bought 58,807 total additional shares and increased their ownership by an average of 1.19%. However 2 funds sold 28,336 total shares and decreased their ownership by an average of 0.63%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Rambus increased by a net total of 30,471 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
iShares Core S&P Mid-Cap ETF	3.245%	0.000%	3,458,296	0	2024-11-30
Vanguard Total Stock Mkt Idx Inv	3.181%	-0.305%	3,390,386	-10,372	2024-11-30
iShares Russell 2000 ETF	2.855%	0.000%	3,042,472	0	2024-11-30
Vanguard Small Cap Index	2.549%	0.589%	2,716,776	15,900	2024-11-30
Vanguard Information Technology ETF	1.743%	-0.958%	1,857,127	-17,964	2024-11-30
Vanguard Institutional Extnd Mkt Idx Tr	1.510%	0.484%	1,609,735	7,753	2024-11-30
Swedbank Robur Technology A	1.408%	0.000%	1,500,000	0	2024-11-30
Vanguard Small Cap Growth Index Inv	1.402%	0.608%	1,493,642	9,021	2024-11-30
iShares Russell 2000 Growth ETF	0.923%	0.000%	983,499	0	2024-11-30
SPDR® S&P Semiconductor ETF	0.874%	0.000%	931,810	0	2024-11-30
SPDR® S&P MIDCAP 400 ETF Trust	0.819%	3.086%	873,072	26,133	2024-11-30

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Sapphire Star Capital Small Cap Growth	8.382%	1,563,590.000%	9,147,577	9,146,992	2023-06-30
iShares Core S&P Small-Cap ETF	6.758%	-0.089%	7,265,835	-6,492	2023-11-30
iShares Core S&P Mid-Cap ETF	3.245%	0.000%	3,458,296	0	2024-11-30
Vanguard Total Stock Mkt Idx Inv	3.181%	-0.305%	3,390,386	-10,372	2024-11-30
Vanguard Instl Ttl Stck Mkt Idx Tr	3.090%	1.881%	3,321,472	61,333	2023-03-31
iShares Russell 2000 ETF	2.855%	0.000%	3,042,472	0	2024-11-30
Vanguard Small Cap Index	2.549%	0.589%	2,716,776	15,900	2024-11-30
Invesco Small Cap Value A	2.548%	9.534%	2,715,400	236,344	2024-10-31
Vanguard Information Technology ETF	1.743%	-0.958%	1,857,127	-17,964	2024-11-30
iShares Semiconductor ETF	1.645%	-0.302%	1,771,582	-5,372	2024-08-30
Vanguard Institutional Extnd Mkt Idx Tr	1.510%	0.484%	1,609,735	7,753	2024-11-30
Invesco Value Opportunities A	1.432%	0.000%	1,526,264	1,526,264	2024-10-31
Swedbank Robur Technology A	1.408%	0.000%	1,500,000	0	2024-11-30
Vanguard Small Cap Growth Index Inv	1.402%	0.608%	1,493,642	9,021	2024-11-30
Vanguard Extended Market Index Investor	1.361%	0.413%	1,485,578	6,112	2023-08-31
T. Rowe Price Integrated US Sm Gr Eq	1.299%	90.223%	1,384,562	656,700	2024-10-31
Neuberger Berman Intrinsic Value Instl	1.242%	0.000%	1,335,061	0	2022-12-31
Vanguard Explorer Inv	1.221%	2,500.090%	1,314,582	1,264,023	2024-06-30
JPM US Mid Cap Growth-Composite	1.156%	0.000%	1,231,597	0	2024-09-30
JPMorgan Mid Cap Growth I	1.156%	0.000%	1,231,597	0	2024-10-31
Hood River Small-Cap Growth Instl	1.067%	14.639%	1,136,944	145,185	2024-06-30
Columbia Seligman Tech & Info A	1.025%	0.000%	1,119,000	0	2023-08-31
iShares S&P Small-Cap 600 Growth ETF	1.033%	0.000%	1,110,216	0	2023-11-30
Fidelity Small Cap Index	1.039%	-0.671%	1,107,571	-7,487	2024-09-30
Fidelity® Small Cap Index	0.978%	2.809%	1,051,853	28,743	2023-10-31
iShares Russell 2000 Growth ETF	0.923%	0.000%	983,499	0	2024-11-30
Vanguard Small Cap Value Index Inv	0.896%	-0.324%	978,150	-3,180	2023-08-31
JPM US Technology A (dist) USD	0.902%	-1.144%	971,258	-11,240	2024-07-31
Polar Capital Global Tech Inc	0.890%	-13.085%	965,794	-145,400	2024-01-31
Direxion Daily Semicondct Bull 3X ETF	0.893%	0.047%	961,196	452	2024-08-29
SPDR® S&P Semiconductor ETF	0.874%	0.000%	931,810	0	2024-11-30
SPDR® Portfolio S&P 600 Sm Cap ETF	0.845%	-0.186%	908,304	-1,692	2023-11-30
Vanguard Tax-Managed Small Cap Adm	0.813%	0.000%	873,784	0	2023-11-30
SPDR® S&P MIDCAP 400 ETF Trust	0.819%	3.086%	873,072	26,133	2024-11-30
Lord Abbett & Co. Growth Equity- SA	0.778%	0.000%	845,088	845,088	2023-12-31
Lord Abbett Growth Leaders I	0.775%	-0.455%	841,240	-3,848	2024-01-31
JPM US Mid Cap Growth-MA	0.776%	163.357%	833,789	517,189	2023-09-30
Lord Abbett Developing Growth A	0.767%	-1.254%	832,823	-10,578	2024-01-31
Hartford MidCap Y	0.755%	-2.448%	812,421	-20,385	2024-08-31
Westwood Quality SmallCap Fund Inst	0.735%	-5.613%	790,226	-46,997	2022-09-30
Neuberger Berman Intrinsic Value I	0.709%	0.000%	773,441	0	2023-07-31
Loomis Sayles Small Cap Growth Instl	0.705%	0.000%	766,970	0	2023-05-31
Columbia Seligman Technology Growth	0.709%	-31.850%	762,600	-356,400	2023-09-30
Columbia Small Cap Growth Inst	0.703%	0.000%	755,657	0	2023-11-30
Westwood Mgt SmallCap Value	0.703%	-9.762%	755,492	-81,731	2022-09-30
iShares S&P Mid-Cap 400 Growth ETF	0.696%	0.636%	750,498	4,739	2024-05-30
JPMorgan Small Cap Growth A	0.697%	-1.034%	743,008	-7,759	2024-10-31
American Century Small Cap Growth Inv	0.693%	0.000%	738,895	0	2024-09-30
American Century U.S. Small Cap Growth	0.693%	0.000%	738,895	0	2024-09-30
T. Rowe Price Integrated US SmCapGrEq	0.683%	-6.001%	727,862	-46,467	2024-09-30
DFA US Micro Cap I	0.648%	0.000%	705,710	0	2023-01-31
Invesco Discovery A	0.642%	31.287%	690,162	164,473	2023-12-31
DFA US Small Cap I	0.581%	0.000%	632,279	0	2023-02-28