RAMBUS INC DEL

$RMBS
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Smart money positioned

10 of the Top-200 alpha managers hold $RMBS as of the latest 13F snapshot.

13F holders
553
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

10 holders · Q1 2026

$RMBS is held by 10 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.38%, with an average of 0.09% of portfolio. Largest holder: Wincap Financial LLC at 0.38%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

01
Wincap Financial LLC
0.38% NEW
α +14.0pts
02
Independent Solutions Wealth Management, LLC
0.29% NEW
α +19.1pts
03
New Age Alpha Advisors, LLC
0.11% held
α +10.8pts
04
Oak Grove Capital LLC
0.05% held
α +23.3pts
05
Citigroup Inc.
0.04% held
α +26.3pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 553 · Source: 13F-HR
01
Axa S.a.
0.01% of portfolio
4,373,617 sh
02
State Street
0.01% of portfolio
4,251,563 sh
03
Roberts Capital Advisors, LLC
0.14% of portfolio
2,391,020 sh
04
Northwest Bancshares, Inc.
1.34% of portfolio
1,947,742 sh
05
ProShare Advisors LLC
0.02% of portfolio
1,701,551 sh
06
Softbank Group Corp.
0.07% of portfolio
1,687,470 sh
07
Schwartz Investment Counsel Inc.
0.14% of portfolio
1,563,000 sh
08
Strs Ohio
0.02% of portfolio
1,326,402 sh
09
Dean Investment Associates, LLC
0.79% of portfolio
1,275,978 sh
10
Smh Capital Advisors Inc.
0.02% of portfolio
990,292 sh
See all 553 13F holders · Pro →

Insider activity · last 90 days

16 transactions · 7 filers
27 May 2025
Laub Steven —
▼ SOLD
1,847
$55.13
S
19 May 2025
Laub Steven —
▼ SOLD
3,653
$55.56
S
09 May 2025
Stang Eric B —
▼ SOLD
3,653
$51.13
S
05 May 2025
Lynch Desmond —
▼ SOLD
3,118
$50.31
S
23 Apr 2025
Seraphin Luc —
▼ SOLD
6,348
$46.97
S
22 Apr 2025
Seraphin Luc —
▼ SOLD
1,255
$45.00
S
15 Apr 2025
Seraphin Luc —
▼ SOLD
10,000
$47.79
S
08 Apr 2025
Seraphin Luc —
▼ SOLD
10,000
$46.81
S
01 Apr 2025
Seraphin Luc —
▼ SOLD
10,000
$50.88
S
25 Mar 2025
Seraphin Luc —
▼ SOLD
10,000
$58.64
S
21 Mar 2025
Shinn John —
▼ SOLD
7,632
$55.73
S
18 Mar 2025
Seraphin Luc —
▼ SOLD
10,000
$53.79
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $RMBS in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 10:23 UTC.