RMBS icon

Rambus
RMBS

Overview Fund Activity

407 hedge funds and large institutions have $5.04B invested in Rambus in 2025 Q1 according to their latest regulatory filings, with 78 funds opening new positions, 156 increasing their positions, 129 reducing their positions, and 55 closing their positions.

Holders
407
Holders Change
+17
Holders Change %
+4.36%
% of All Funds
5.53%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
78
Increased
156
Reduced
129
Closed
55
Calls
$31M
Puts
$22M
Net Calls
+$9.02M
Net Calls Change
+$11.5M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$453M
2
EIG
2
EdgePoint Investment Group
Ontario, Canada
$60.5M
3
NL
3
Nuveen LLC
North Carolina
$57.1M
4
HRCM
4
Hood River Capital Management
Florida
$48.9M
5
PWAM
5
Park West Asset Management
California
$30.5M

Top Sellers

1
Norges Bank
1
Norges Bank
Norway
$0
2
Assenagon Asset Management
2
Assenagon Asset Management
Luxembourg
$9.26M
3
JPMorgan Chase & Co
3
JPMorgan Chase & Co
New York
$189M
4
Invesco
4
Invesco
Georgia
$235M
5
CM
5
Crestline Management
Texas
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$737M 14,236,566 +97,504 +0.7%
Vanguard Group
2
Vanguard Group
Pennsylvania
$644M 12,442,412 -152,567 -1%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$453M 8,746,856 +3,297,728 +61%
State Street
4
State Street
Massachusetts
$237M 4,580,557 -156,858 -3%
Invesco
5
Invesco
Georgia
$235M 4,532,026 -467,722 -9%
JPMorgan Chase & Co
6
JPMorgan Chase & Co
New York
$189M 3,647,406 -536,964 -13%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$137M 2,651,947 +74,762 +3%
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$96.7M 1,868,434 +134,246 +8%
Bank of New York Mellon
9
Bank of New York Mellon
New York
$92.4M 1,784,251 -311,723 -15%
Swedbank
10
Swedbank
Sweden
$88M 1,700,000 – –
American Century Companies
11
American Century Companies
Missouri
$73.7M 1,424,365 +248,013 +21%
Northern Trust
12
Northern Trust
Illinois
$73.6M 1,420,613 -42,725 -3%
Neuberger Berman Group
13
Neuberger Berman Group
New York
$66.7M 1,282,168 -376,196 -23%
Charles Schwab
14
Charles Schwab
California
$65M 1,256,346 +6,600 +0.5%
WHG
15
Westwood Holdings Group
Texas
$63.8M 1,232,210 +104,356 +9%
CAM
16
Congress Asset Management
Massachusetts
$62.1M 1,199,564 +333,538 +39%
Wellington Management Group
17
Wellington Management Group
Massachusetts
$61.8M 1,194,046 -54,399 -4%
EIG
18
EdgePoint Investment Group
Ontario, Canada
$60.5M 1,169,194 +1,169,194 New
VOYA Investment Management
19
VOYA Investment Management
Georgia
$57.4M 1,109,115 -15,326 -1%
NL
20
Nuveen LLC
North Carolina
$57.1M 1,102,549 +1,102,549 New
Westfield Capital Management
21
Westfield Capital Management
Massachusetts
$56.4M 1,089,081 -300,457 -22%
HRCM
22
Hood River Capital Management
Florida
$48.9M 944,894 +944,894 New
Raymond James Financial
23
Raymond James Financial
Florida
$48.7M 939,712 -34,572 -4%
Morgan Stanley
24
Morgan Stanley
New York
$48.6M 938,032 +23,282 +3%
TIM
25
Thornburg Investment Management
New Mexico
$42M 81,120 -6,964 -8%
1
2 3 4 5