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213 hedge funds and large institutions have $1.86B invested in Rambus in 2021 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 57 increasing their positions, 86 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

11% more capital invested

Capital invested by funds: $1.68B → $1.86B (+$184M)

1.42% more ownership

Funds ownership: 84.29%85.7% (+1.4%)

7% more call options, than puts

Call options by funds: $18.9M | Put options by funds: $17.6M

0% more funds holding in top 10

Funds holding in top 10: 22 (0)

5% less funds holding

Funds holding: 224213 (-11)

21% less first-time investments, than exits

New positions opened: 30 | Existing positions closed: 38

34% less repeat investments, than reductions

Existing positions increased: 57 | Existing positions reduced: 86

Holders
213
Holders Change
-11
Holders Change %
-4.91%
% of All Funds
3.74%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
30
Increased
57
Reduced
86
Closed
38
Calls
$18.9M
Puts
$17.6M
Net Calls
+$1.26M
Net Calls Change
+$10.1M
Name Holding Trade Value Shares
Change
Change in
Stake
EFSCE
201
Enterprise Financial Services Corp (EFSC)
Missouri
$3K +$2.63K +131 New
Fidelity Investments
202
Fidelity Investments
Massachusetts
$3K +$2.95K +147 New
BCA
203
Berman Capital Advisors
Georgia
$2K
AIG
204
American International Group
New York
$1.47K -$20.9K -1,043 -1%
CFN
205
Cordasco Financial Network
Florida
$1K
PFGIA
206
Patriot Financial Group Insurance Agency
Massachusetts
$1K
TFS
207
TrustCore Financial Services
Tennessee
$1K
VNA
208
Valley National Advisers
Pennsylvania
$1K
WAP
209
Wealthcare Advisory Partners
Pennsylvania
$1K +$1.3K +65 New
AIC
210
Ameritas Investment Company
Nebraska
$836 -$1.19M -59,306 -100%
Nisa Investment Advisors
211
Nisa Investment Advisors
Missouri
$76
HIM
212
Hillsdale Investment Management
Ontario, Canada
-$4.78M -273,700 Closed
BCM
213
Barometer Capital Management
Ontario, Canada
-$2.87M -164,426 Closed
Tudor Investment Corp
214
Tudor Investment Corp
Connecticut
-$2.6M -148,622 Closed
EGI
215
EAM Global Investors
California
-$2.4M -137,625 Closed
EI
216
EAM Investors
California
-$1.71M -97,652 Closed
MSA
217
Mason Street Advisors
Wisconsin
-$742K -42,482 Closed
PI
218
PEAK6 Investments
Illinois
-$737K -36,720 Closed
GCP
219
GSA Capital Partners
United Kingdom
-$597K -34,204 Closed
BA
220
Bridgewater Associates
Connecticut
-$524K -30,034 Closed
Creative Planning
221
Creative Planning
Kansas
-$491K -28,093 Closed
TI
222
Trexquant Investment
Connecticut
-$478K -27,397 Closed
Allianz Asset Management
223
Allianz Asset Management
Germany
-$477K -27,330 Closed
AIM
224
Aigen Investment Management
New York
-$474K -27,122 Closed
Walleye Trading
225
Walleye Trading
New York
-$379K -18,862 Closed

RMBS Hedge Fund Activity: Q1 2021 in Review

213 of the 5,695 institutional investors tracked by Wall St. Rank reported a position in Rambus (RMBS) for Q1 2021, worth a combined $1.86B — up 11% from $1.68B a quarter earlier.

Sellers outnumbered buyers: 38 funds closed out of RMBS and 30 opened new positions — a net loss of 8 holders — while 86 trimmed existing stakes and 57 added.

The largest buyer was Lynrock Lake LP, adding an estimated $21.6M. The largest seller was Renaissance Technologies, cutting an estimated $21M.

  • 213 institutional investors held Rambus (RMBS) as of Q1 2021, down from 224 in Q4 2020.
  • Funds reported $1.86B of Rambus stock for Q1 2021, up 11% quarter-over-quarter.
  • 30 funds opened new Rambus positions in Q1 2021 and 38 closed out, a net change of -8 holders.
  • The largest Rambus buyer in Q1 2021 was Lynrock Lake LP, an estimated $21.6M added.
  • The largest Rambus seller in Q1 2021 was Renaissance Technologies, an estimated $21M sold.

Based on aggregated 13F filings for Q1 2021.