RMBS RAMBUS INC DEL

Stock (common), issuer CIK 917273

Filings received so far for Q3 2026: 19 13F filers report a position in RMBS shares at 2026-09-30. The quarter is not complete: its 13F deadline is 2026-11-14, and the counts grow as filings arrive.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2026

Filers in the available 13F reports with a share position at 2026-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

Holder	Shares	Value	% of portfolio	Change	Source
CONGRESS ASSET MANAGEMENT CO	356,996	$38.1M	0.25%	-420,997	13F-HR Timeline
M.E. ALLISON & CO., INC.	5,897	$630K	0.35%	0	13F-HR Timeline
ROCKLAND TRUST CO	4,996	$533K	0.02%	0	13F-HR Timeline
Farther Finance Advisors, LLC	4,954	$529K	<0.01%	-469	13F-HR Timeline
Oak Grove Capital LLC	4,800	$512K	0.03%	-1,000	13F-HR Timeline
GAMMA Investing LLC	4,513	$482K	0.02%	+374	13F-HR Timeline
Balefire, LLC	2,420	$258K	0.04%	-348	13F-HR Timeline
Everhart Financial Group, Inc.	2,155	$230K	0.01%	-45	13F-HR Timeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…	1,948	$208K	0.02%	-200	13F-HR Timeline Group
Versant Capital Management, Inc	1,126	$120K	0.01%	-117	13F-HR Timeline
GK Wealth Management LLC	1,117	$119K	0.07%	new	13F-HR Timeline
MassMutual Private Wealth & Trust, FSB	316	$33.7K	<0.01%	-158	13F-HR Timeline
CoreCap Advisors, LLC	159	$17K	<0.01%	-241	13F-HR Timeline
TOTH FINANCIAL ADVISORY CORP	50	$5.34K	<0.01%	+22	13F-HR Timeline
MJT & Associates Financial Advisory Gro…	46	$4.91K	<0.01%	-29	13F-HR Timeline
ELEVATION WEALTH PARTNERS, LLC	28	$2.99K	<0.01%	new	13F-HR Timeline
ARMSTRONG ADVISORY GROUP, INC	19	$2.03K	<0.01%	0	13F-HR Timeline
Trust Co	8	$854	<0.01%	0	13F-HR Timeline
Wealth Enhancement Trust Services, Inc.	2	$214	<0.01%	new	13F-HR Timeline