Rambus Inc. (RMBS) Insider Trading

Last 12 months

Insiders sold $21M and bought nothing on the open market.

41% of the selling was scheduled in advance under 10b5-1 plans. EVP, COO Xianzhi Sean Fan sold $5.75M on May 26, 18% of their stake, outside a plan. The last open-market buy by an executive or director was in May 2012.

Net open-market

−$21M

0 buys · 19 sales

Under a 10b5-1 plan

41%

of the value sold

Insiders who bought / sold

0 / 10

executives and directors

Last open-market buy

May 2012

May 11, 2012

Get an email when RMBS's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 2	Charles Kissner Director	Sold10b5-1 plan	5,000	$111.00	$555k	10%	Form 4
Sep 22	Charles Kissner Director	Sold10b5-1 plan	5,000	$105.00	$525k	9.2%	Form 4
Aug 7	Charles Kissner Director	Sold10b5-1 plan	5,000	$100.92	$505k	8.4%	Form 4
Jun 3	Necip Sayiner Director	SoldNo plan	5,000	$170.15	$851k	22%	Form 4
Jun 2	Emiko Higashi Director	SoldNo plan 2 parts	10,000	$160.50 average	$1.6M	17%	Form 4
Jun 1	Eric B Stang Director	SoldNo plan	5,000	$146.00	$730k	19%	Form 4
May 26	Emiko Higashi Director	SoldNo plan	5,000	$157.57	$788k	7.7%	Form 4
May 26	Xianzhi Sean Fan EVP, COO	SoldNo plan 2 parts	37,914	$151.69 average	$5.75M	18%	Form 4
May 22	John Shinn SVP, General Counsel	SoldNo plan	1,000	$143.63	$144k	4.5%	Form 4
May 8	Necip Sayiner Director	SoldNo plan	9,824	$130.18	$1.28M	30%	Form 4
May 7	Steven Laub Director	SoldNo plan	1,500	$125.52	$188k	17%	Form 4
Apr 24	Meera Rao Director	Sold10b5-1 plan	2,972	$150.30	$447k	13%	Form 4
Apr 14	Meera Rao Director	Sold10b5-1 plan	8,538	$118.08	$1.01M	27%	Form 4
Apr 2	Luc Seraphin President and CEO	Sold10b5-1 plan 3 parts	5,426	$86.65 average	$470k	1.5%	Form 4
Mar 10	John Shinn SVP, General Counsel	Sold10b5-1 plan 2 parts	4,556	$88.68 average	$404k	20%	Form 4
Mar 3	John Shinn SVP, General Counsel	Sold10b5-1 plan 3 parts	4,557	$93.55 average	$426k	17%	Form 4
Mar 2	Luc Seraphin President and CEO	Sold10b5-1 plan 6 parts	39,914	$98.63 average	$3.94M	11%	Form 4
Feb 23	Desmond Lynch SVP, CFO	Sold10b5-1 plan	4,273	$101.53	$434k	6.3%	Form 4
Nov 7, 2025 – Nov 10, 2025	Eric B Stang Director	SoldNo plan 2 parts	9,000	$106.55 average	$959k	27%	Form 4
Oct 6, 2025	Desmond Lynch SVP, CFO	Sold10b5-1 plan 2 parts	9,074	$101.50 average	$921k	14%	Form 4
Oct 1, 2025	Meera Rao Director	Sold10b5-1 plan	653	$101.99	$67k	2.2%	Form 4
Sep 15, 2025	Desmond Lynch SVP, CFO	Sold10b5-1 plan	9,074	$91.70	$832k	12%	Form 4
Sep 11, 2025	Necip Sayiner Director	SoldNo plan	7,500	$85.63	$642k	20%	Form 4
Sep 2, 2025	Meera Rao Director	Sold10b5-1 plan	3,000	$71.72	$215k	9.1%	Form 4
Aug 29, 2025	Steven Laub Director	SoldNo plan	2,261	$78.72	$178k	25%	Form 4
Aug 13, 2025	Emiko Higashi Director	SoldNo plan	1,075	$77.75	$84k	1.7%	Form 4
Aug 8, 2025	Necip Sayiner Director	SoldNo plan	7,500	$73.53	$551k	16%	Form 4
Aug 4, 2025	Emiko Higashi Director	SoldNo plan	1,111	$75.00	$83k	1.7%	Form 4
Aug 4, 2025	John Shinn SVP, General Counsel	SoldNo plan	790	$74.61	$59k	3.8%	Form 4
May 27, 2025	Steven Laub Director	SoldNo plan	1,847	$55.13	$102k	17%	Form 4
May 19, 2025	Steven Laub Director	SoldNo plan	3,653	$55.56	$203k	25%	Form 4
May 9, 2025	Eric B Stang Director	SoldNo plan	3,653	$51.13	$187k	9.9%	Form 4
May 5, 2025	Desmond Lynch SVP, CFO	Sold10b5-1 plan	3,118	$50.31	$157k	4.0%	Form 4
Apr 22, 2025 – Apr 23, 2025	Luc Seraphin President and CEO	Sold10b5-1 plan 2 parts	7,603	$46.64 average	$355k	2.3%	Form 4
Apr 15, 2025	Luc Seraphin President and CEO	Sold10b5-1 plan	10,000	$47.79	$478k	3.0%	Form 4
Apr 8, 2025	Luc Seraphin President and CEO	Sold10b5-1 plan	10,000	$46.81	$468k	2.9%	Form 4
Apr 1, 2025	Luc Seraphin President and CEO	Sold10b5-1 plan	10,000	$50.88	$509k	2.8%	Form 4
Mar 25, 2025	Luc Seraphin President and CEO	Sold10b5-1 plan	10,000	$58.64	$586k	3.2%	Form 4
Mar 21, 2025	John Shinn SVP, General Counsel	Sold10b5-1 plan	7,632	$55.73	$425k	37%	Form 4
Mar 18, 2025	Luc Seraphin President and CEO	Sold10b5-1 plan	10,000	$53.79	$538k	3.1%	Form 4

Oct 210b5-1 plan
Charles Kissner
Director · sold 5,000 at $111.00
$555k
10% of stake
Sep 2210b5-1 plan
Charles Kissner
Director · sold 5,000 at $105.00
$525k
9.2% of stake
Aug 710b5-1 plan
Charles Kissner
Director · sold 5,000 at $100.92
$505k
8.4% of stake
Jun 3No plan
Necip Sayiner
Director · sold 5,000 at $170.15
$851k
22% of stake
Jun 2No plan
Emiko Higashi
Director · sold 10,000 at avg $160.50
$1.6M
17% of stake
Jun 1No plan
Eric B Stang
Director · sold 5,000 at $146.00
$730k
19% of stake
May 26No plan
Emiko Higashi
Director · sold 5,000 at $157.57
$788k
7.7% of stake
May 26No plan
Xianzhi Sean Fan
EVP, COO · sold 37,914 at avg $151.69
$5.75M
18% of stake
May 22No plan
John Shinn
SVP, General Counsel · sold 1,000 at $143.63
$144k
4.5% of stake
May 8No plan
Necip Sayiner
Director · sold 9,824 at $130.18
$1.28M
30% of stake
May 7No plan
Steven Laub
Director · sold 1,500 at $125.52
$188k
17% of stake
Apr 2410b5-1 plan
Meera Rao
Director · sold 2,972 at $150.30
$447k
13% of stake
Apr 1410b5-1 plan
Meera Rao
Director · sold 8,538 at $118.08
$1.01M
27% of stake
Apr 210b5-1 plan
Luc Seraphin
President and CEO · sold 5,426 at avg $86.65
$470k
1.5% of stake
Mar 1010b5-1 plan
John Shinn
SVP, General Counsel · sold 4,556 at avg $88.68
$404k
20% of stake
Mar 310b5-1 plan
John Shinn
SVP, General Counsel · sold 4,557 at avg $93.55
$426k
17% of stake
Mar 210b5-1 plan
Luc Seraphin
President and CEO · sold 39,914 at avg $98.63
$3.94M
11% of stake
Feb 2310b5-1 plan
Desmond Lynch
SVP, CFO · sold 4,273 at $101.53
$434k
6.3% of stake
Nov 7, 2025 – Nov 10, 2025No plan
Eric B Stang
Director · sold 9,000 at avg $106.55
$959k
27% of stake
Oct 6, 202510b5-1 plan
Desmond Lynch
SVP, CFO · sold 9,074 at avg $101.50
$921k
14% of stake
Oct 1, 202510b5-1 plan
Meera Rao
Director · sold 653 at $101.99
$67k
2.2% of stake
Sep 15, 202510b5-1 plan
Desmond Lynch
SVP, CFO · sold 9,074 at $91.70
$832k
12% of stake
Sep 11, 2025No plan
Necip Sayiner
Director · sold 7,500 at $85.63
$642k
20% of stake
Sep 2, 202510b5-1 plan
Meera Rao
Director · sold 3,000 at $71.72
$215k
9.1% of stake
Aug 29, 2025No plan
Steven Laub
Director · sold 2,261 at $78.72
$178k
25% of stake
Aug 13, 2025No plan
Emiko Higashi
Director · sold 1,075 at $77.75
$84k
1.7% of stake
Aug 8, 2025No plan
Necip Sayiner
Director · sold 7,500 at $73.53
$551k
16% of stake
Aug 4, 2025No plan
Emiko Higashi
Director · sold 1,111 at $75.00
$83k
1.7% of stake
Aug 4, 2025No plan
John Shinn
SVP, General Counsel · sold 790 at $74.61
$59k
3.8% of stake
May 27, 2025No plan
Steven Laub
Director · sold 1,847 at $55.13
$102k
17% of stake
May 19, 2025No plan
Steven Laub
Director · sold 3,653 at $55.56
$203k
25% of stake
May 9, 2025No plan
Eric B Stang
Director · sold 3,653 at $51.13
$187k
9.9% of stake
May 5, 202510b5-1 plan
Desmond Lynch
SVP, CFO · sold 3,118 at $50.31
$157k
4.0% of stake
Apr 22, 2025 – Apr 23, 202510b5-1 plan
Luc Seraphin
President and CEO · sold 7,603 at avg $46.64
$355k
2.3% of stake
Apr 15, 202510b5-1 plan
Luc Seraphin
President and CEO · sold 10,000 at $47.79
$478k
3.0% of stake
Apr 8, 202510b5-1 plan
Luc Seraphin
President and CEO · sold 10,000 at $46.81
$468k
2.9% of stake
Apr 1, 202510b5-1 plan
Luc Seraphin
President and CEO · sold 10,000 at $50.88
$509k
2.8% of stake
Mar 25, 202510b5-1 plan
Luc Seraphin
President and CEO · sold 10,000 at $58.64
$586k
3.2% of stake
Mar 21, 202510b5-1 plan
John Shinn
SVP, General Counsel · sold 7,632 at $55.73
$425k
37% of stake
Mar 18, 202510b5-1 plan
Luc Seraphin
President and CEO · sold 10,000 at $53.79
$538k
3.1% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch RMBS, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in RMBS's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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