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RMBS · Rambus Inc

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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475

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RMBS

Name: RAMBUS INC (RMBS) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

RAMBUS INC

SEMICONDUCTORS & ELECTRONICS · SEMICONDUCTORS & RELATED DEVICES · CIK 0000917273

FORM 144 · 1☆ WATCH

INSIDER NET · 180D

-$14.2M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

324

13F, latest reported quarter

REVENUE GROWTH

+27.1%

XBRL, annual

NET MARGIN

32.6%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$14.2M over 180 days

-$504.6K over 90 days

below 67% of Semiconductors & Electronics

CONGRESS

no member of Congress has reported trading it

FUNDS

324 funds added or opened last quarter

more than 79% of Semiconductors & Electronics

REVENUE

+27.1% year over year

more than 72% of Semiconductors & Electronics

MARGIN

32.6% net margin

more than 96% of Semiconductors & Electronics

BUYBACKS

$2.6M repurchased, FY to 2026-03-31

below 84% of Semiconductors & Electronics

SHORT

no short interest reported

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$14.2M across 9 people in 180 days.

324 funds added or opened positions in the latest 13F quarter, of 619 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +16.3%

+16.3%12M

INSIDER SELLFORM 144

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

Insiders have filed to sell — before selling.

The record shows a net $14.2M sold by insiders over 180 days, 324 funds added last quarter, $504.6K in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

NVDA CRDO VICR MPWR VPLM ALAB PI MTSI MU AIP AVGO MSI

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, RAMBUS INC insiders sold a net $14.2M of stock across 133 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER

FILED

VALUE

KISSNER CHARLES

Director

SELL

2026-08-07

5,000.0

$504.6K

Sayiner Necip

Director

SELL

2026-06-03

5,000.0

$850.8K

Higashi Emiko

Director

SELL

2026-06-02

5,000.0

$790.0K

Higashi Emiko

Director

SELL

2026-06-02

5,000.0

$815.0K

STANG ERIC B

Director

SELL

2026-06-01

5,000.0

$730.0K

133 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 128 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

13,964,477.0 sh

$1.9B

FMR LLC

10,460,026.0 sh

$1.4B

Invesco Ltd.

6,632,458.0 sh

$880.4M

VANGUARD PORTFOLIO MANAGEMENT LLC

6,068,516.0 sh

$805.5M

VANGUARD CAPITAL MANAGEMENT LLC

4,874,385.0 sh

$647.0M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

Planned sales · Form 144

Filed before the sale — intent, not a trade

KISSNER CHARLES

FILED 2026-08-07

$504.6K

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Global X Internet of Things ETF

$9.2M POSITION · AS OF 2026-02-28

4.4%

VanEck Fabless Semiconductor ETF

$6.1M POSITION · AS OF 2026-03-31

4.0%

Congress SMid Growth ETF

$15.5M POSITION · AS OF 2026-04-30

3.6%

Innovator Deepwater Frontier Tech ETF

$5.4M POSITION · AS OF 2026-04-30

3.1%

AVE MARIA GROWTH FUND

$31.9M POSITION · AS OF 2026-03-31

3.0%

Invesco Small Cap Value Fund

$321.6M POSITION · AS OF 2026-04-30

3.0%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return · Luc Seraphin

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$9.5M

$35.7M

$3.6M

+426%

+377%

2024

$7.2M

-$5.1M

$2.6M

+284%

+391%

2023

$8.4M

$30.4M

$3.0M

+395%

+177%

2022

$7.1M

$19.4M

$3.2M

+160%

+37%

2021

$5.8M

$13.6M

$1.5M

+113%

+119%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$707.6M	$556.6M	$461.1M	$454.8M
GROSS PROFIT	$563.2M	$446.5M	$357.7M	$347.2M
OPERATING INCOME	$260.2M	$183.0M	$153.6M	$76.9M
NET INCOME	$230.5M	$179.8M	$333.9M	$-14.3M
EPS (DILUTED)	2.11	1.65	3.01	-0.13
OPERATING CASH FLOW	$360.0M	$230.6M	$195.8M	$230.4M
CASH	$182.8M	$99.8M	$94.8M	$125.3M
BUYBACKS	$7.1M	$113.3M	$100.5M	$100.4M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE