Rambus Inc

RMBS

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0000917273

SEC filings (opens in a new tab)

In the last 90 days, Rambus Inc insiders filed 0 open-market purchases and 2 sales; 621 institutions reported holding it in 13F filings for Q2 2026, worth $13.3B in total; superinvestors Duquesne Family Office and Maverick Capital hold it.

Q3 2021 vs. Q2 2021

How the institutions holding Rambus Inc changed between Q2 2021 and Q3 2021.

All holders in Q3 2021 All holders in Q2 2021

13F holders of RMBS: Q2 2021 compared with Q3 2021
Measure	Q2 2021	Of which not filed for Q3 2021	Q3 2021	Change
Holders	219	3	236	+20
Shares	97.1M	465.7K	93.4M	−3.16M (−3.3%)
Value	$2.30B	$11.0M	$2.07B	−$216.2M (−9.4%)

3 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (35)

Institutions that held Rambus Inc at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to RMBS in Q3 2021
Institution	Shares	Value	% of portfolio
Canada Pension Plan Investment Board	66,000	$1.47M	0.00%
Arrowstreet Capital, Limited Partnership	61,600	$1.37M	0.00%
Qube Research & Technologies Ltd	54,423	$1.21M	0.02%
Connor, Clark & Lunn Investment Management Ltd.	52,388	$1.16M	0.01%
Maryland State Retirement & Pension System	42,848	$960.0K	0.03%
Marshall Wace, LLP	32,482	$721.0K	0.00%
Ergoteles LLC	31,500	$699.0K	0.03%
Jacobs Levy Equity Management, Inc	31,200	$693.0K	0.00%
Tudor Investment Corp Et Al	25,359	$563.0K	0.01%
AMP Capital Investors Ltd	20,800	$462.0K	0.00%
Jaffetilchin Investment Partners, LLC	20,443	$454.0K	0.05%
Aigen Investment Management, LP	17,041	$378.0K	0.07%
PDT Partners, LLC	16,861	$374.0K	0.03%
Marshall Wace North America L.P.	15,648	$347.0K	0.00%
Juncture Wealth Strategies, LLC	14,033	$312.0K	0.16%
HAP Trading, LLC	12,934	$287.0K	0.02%
Dynamic Technology Lab Private Ltd	12,281	$273.0K	0.03%
Man Group plc	11,932	$265.0K	0.00%
Janus Henderson Group PLC	11,494	$255.0K	0.00%
Trexquant Investment LP	10,807	$240.0K	0.02%
Shay Capital LLC	10,000	$222.0K	0.07%
Sciencast Management LP	9,649	$212.0K	0.06%
Wolverine Asset Management LLC	5,163	$114.0K	0.00%
State of Wyoming	3,946	$88.0K	0.06%
Bell Investment Advisors, Inc	2,934	$65.0K	0.02%
Dark Forest Capital Management LP	1,226	$27.0K	0.01%
Koshinski Asset Management, Inc.	1,140	$25.3K	0.00%
Cutler Group LP	680	$15.0K	0.00%
Lountzis Asset Management, LLC	450	$9.99K	0.01%
Archer Investment Corp	368	$8.17K	0.00%
Total Clarity Wealth Management, Inc.	238	$5.00K	0.00%
Fifth Third Bancorp	118	$3.00K	0.00%
Manchester Capital Management LLC	81	$2.00K	0.00%
ClariVest Asset Management LLC	59	$1.00K	0.00%
Ellevest, Inc.	24	$1.00K	0.00%

Sold out (15)

Institutions that held Rambus Inc at the end of Q2 2021 and filed for Q3 2021 without it.

Institutions that sold out of RMBS in Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
EAM Investors, LLC	165,359	$3.92M
Susquehanna International Group, LLP	155,868	$3.70M
Pacer Advisors, Inc.	147,708	$3.50M
ExodusPoint Capital Management, LP	133,773	$3.17M
Hodges Capital Management Inc.	96,520	$2.29M
Winton Group Ltd	30,677	$727.0K
CWM Advisors, LLC	21,120	$501.0K
Raymond James & Associates	20,927	$496.0K
Atom Investors LP	16,962	$402.0K
Tatro Capital, LLC	10,669	$253.0K
First Citizens Bank & Trust Co	8,448	$200.0K
Panagora Asset Management Inc	5,991	$142.0K
Pinz Capital Management, LP	5,200	$123.0K
NEXT Financial Group, Inc	1,917	$45.0K
Advisory Services Network, LLC	431	$10.0K

Not filed for Q3 2021 yet (3)

Institutions that held Rambus Inc at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding RMBS in Q2 2021 that haven't filed for Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
black-and-white Capital LP	442,800	$10.5M
Wexford Capital LP	22,660	$537.0K
CWM, LLC	250	$6.00K