United States Semiconductors & Semiconductor Equipment

Rambus Inc (RMBS)

Track

Over the past 90 days, Rambus Inc. insiders have executed 18 transactions, all of which were sales, totaling approximately $11.34 million in net value. Notable selling activity involved executives and directors, including EVP and COO Xianzhi Sean Fan. These transactions occurred amid a 22.9% decline in stock price over the same period.
Ticker: RMBS Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Top insiders
Trades
Sale 3 Jun 2026
Value US$1,569,623.69 | Price 414.59 | Shares 1,723 (-11.4%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-03 2026-06-03 S Sale
2.4
Sayiner Necip
Non-Executive Director
1,723 -11.4%
414.59
US$1,569,624 		1,723 -11.4% 414.59 US$1,569,624
2026-06-03 2026-06-03 PrS Proposed sale
2.4
NECIP SAYINER

Officer

Officer
52,928
228.01
US$4,335,635 		52,928 228.01 US$4,335,635
2026-06-03 2026-06-02 S Sale
2.8
Higashi Emiko
Non-Executive Director
72,735 -47.3%
122.96
US$493,250 		72,735 -47.3% 122.96 US$493,250
2026-06-03 2026-06-02 S Sale
2.8
Higashi Emiko
Non-Executive Director
5,000 -8.4%
163.00
US$815,000 		5,000 -8.4% 163.00 US$815,000
2026-06-02 2026-06-02 PrS Proposed sale
2.8
EMIKO HIGASHI

Director

Non-Executive Director
10,000
160.50
US$1,605,000 		10,000 160.50 US$1,605,000
2026-06-02 2026-06-01 S Sale
3.0
STANG ERIC B
Non-Executive Director
5,000 -20.6%
146.00
US$730,000 		5,000 -20.6% 146.00 US$730,000
2026-06-01 2026-06-01 PrS Proposed sale
3.0
STANG FAMILY TRUST

Affiliate
5,000
146.00
US$730,000 		5,000 146.00 US$730,000
2026-05-27 2026-05-26 S Sale
2.8
Higashi Emiko
Non-Executive Director
5,000 -7.7%
157.57
US$787,850 		5,000 -7.7% 157.57 US$787,850
2026-05-26 2026-05-26 PrS Proposed sale
2.8
EMIKO HIGASHI

Director

Non-Executive Director
5,000
157.57
US$787,850 		5,000 157.57 US$787,850
2026-05-26 2026-05-26 S Sale
2.9
FAN XIANZHI SEAN

EVP, COO

Officer
100 -0.1%
152.35
US$15,235 		100 -0.1% 152.35 US$15,235
2026-05-26 2026-05-26 S Sale
2.9
FAN XIANZHI SEAN

EVP, COO

Officer
37,814 -18.3%
151.69
US$5,735,991 		37,814 -18.3% 151.69 US$5,735,991
2026-05-26 2026-05-26 PrS Proposed sale
2.9
XIANZHI S FAN

Officer

Officer
37,914
151.69
US$5,751,228 		37,914 151.69 US$5,751,228
2026-05-26 2026-05-22 S Sale
2.9
Shinn John

SVP, General Counsel

Officer
1,000 -4.5%
143.63
US$143,630 		1,000 -4.5% 143.63 US$143,630
2026-05-22 2026-05-22 PrS Proposed sale
2.9
JOHN SHINN

Officer

Officer
1,000
143.63
US$143,630 		1,000 143.63 US$143,630
2026-05-11 2026-05-08 S Sale
2.4
Sayiner Necip
Non-Executive Director
9,824 -29.7%
130.18
US$1,278,888 		9,824 -29.7% 130.18 US$1,278,888
2026-05-08 2026-05-08 PrS Proposed sale
2.4
NECIP SAYINER

Director

Non-Executive Director
9,824
130.18
US$1,278,888 		9,824 130.18 US$1,278,888
2026-05-11 2026-05-07 S Sale
1.7
LAUB STEVEN
Non-Executive Director
1,500 -16.6%
125.52
US$188,279 		1,500 -16.6% 125.52 US$188,279
2026-05-07 2026-05-07 PrS Proposed sale
1.7
STEVEN LAUB

Director

Non-Executive Director
1,500
125.52
US$188,279 		1,500 125.52 US$188,279
2026-04-27 2026-04-24 PlS Planned sale
1.9
Rao Meera
Non-Executive Director
2,972 -13.0%
150.30
US$446,692 		2,972 -13.0% 150.30 US$446,692
2026-04-24 2026-04-24 PrS Proposed sale
1.9
MEERA RAO

Director

Non-Executive Director
2,972
150.30
US$446,692 		2,972 150.30 US$446,692
2026-04-15 2026-04-14 PlS Planned sale
1.9
Rao Meera
Non-Executive Director
8,538 -27.1%
118.08
US$1,008,167 		8,538 -27.1% 118.08 US$1,008,167
2026-04-14 2026-04-14 PrS Proposed sale
1.9
MEERA RAO

Director

Non-Executive Director
8,538
118.08
US$1,008,167 		8,538 118.08 US$1,008,167
2026-04-03 2026-04-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
165 -0.0%
88.35
US$14,578 		165 -0.0% 88.35 US$14,578
2026-04-03 2026-04-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
2,750 -0.8%
87.11
US$239,565 		2,750 -0.8% 87.11 US$239,565
2026-04-03 2026-04-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
2,511 -0.7%
86.04
US$216,045 		2,511 -0.7% 86.04 US$216,045
2026-04-02 2026-04-02 PrS Proposed sale
DESMOND M LYNCH

Officer

Officer
1,586
85.70
US$135,920 		1,586 85.70 US$135,920
2026-04-02 2026-04-02 PrS Proposed sale
DESMOND M LYNCH

Officer

Officer
1,586
85.70
US$135,920 		1,586 85.70 US$135,920
2026-04-02 2026-04-02 PrS Proposed sale
LUC SERAPHIN

Officer; Director

Executive Director
5,426
86.65
US$470,188 		5,426 86.65 US$470,188
2026-03-11 2026-03-10 PlS Planned sale
2.9
Shinn John

SVP, General Counsel

Officer
200 -1.1%
89.55
US$17,909 		200 -1.1% 89.55 US$17,909
2026-03-11 2026-03-10 PlS Planned sale
2.9
Shinn John

SVP, General Counsel

Officer
4,356 -18.9%
88.64
US$386,099 		4,356 -18.9% 88.64 US$386,099
2026-03-10 2026-03-10 PrS Proposed sale
2.9
JOHN SHINN

Officer

Officer
4,556
88.68
US$404,008 		4,556 88.68 US$404,008
2026-03-04 2026-03-03 PlS Planned sale
2.9
Shinn John

SVP, General Counsel

Officer
700 -3.0%
94.89
US$66,421 		700 -3.0% 94.89 US$66,421
2026-03-04 2026-03-03 PlS Planned sale
2.9
Shinn John

SVP, General Counsel

Officer
1,603 -6.3%
94.07
US$150,794 		1,603 -6.3% 94.07 US$150,794
2026-03-04 2026-03-03 PlS Planned sale
2.9
Shinn John

SVP, General Counsel

Officer
2,254 -8.2%
92.77
US$209,104 		2,254 -8.2% 92.77 US$209,104
2026-03-03 2026-03-03 PrS Proposed sale
2.9
JOHN SHINN

Officer

Officer
4,557
93.55
US$426,319 		4,557 93.55 US$426,319
2026-03-03 2026-03-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
1,300 -0.4%
101.65
US$132,150 		1,300 -0.4% 101.65 US$132,150
2026-03-03 2026-03-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
6,587 -1.9%
100.20
US$660,004 		6,587 -1.9% 100.20 US$660,004
2026-03-03 2026-03-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
9,469 -2.7%
99.17
US$939,002 		9,469 -2.7% 99.17 US$939,002
2026-03-03 2026-03-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
13,654 -3.8%
98.22
US$1,341,071 		13,654 -3.8% 98.22 US$1,341,071
2026-03-03 2026-03-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
7,225 -2.0%
97.38
US$703,569 		7,225 -2.0% 97.38 US$703,569
2026-03-03 2026-03-02 PlS Planned sale
Seraphin Luc

President and CEO

Executive Director
1,679 -0.5%
95.83
US$160,901 		1,679 -0.5% 95.83 US$160,901
2026-03-02 2026-03-02 PrS Proposed sale
LUC SERAPHIN

Officer; Director

Executive Director
39,914
98.63
US$3,936,698 		39,914 98.63 US$3,936,698
2026-02-24 2026-02-23 PlS Planned sale
Lynch Desmond

SVP, CFO

Officer
4,273 -6.3%
101.53
US$433,838 		4,273 -6.3% 101.53 US$433,838
2026-02-23 2026-02-23 PrS Proposed sale
DESMOND M LYNCH

Officer

Officer
4,273
101.53
US$433,838 		4,273 101.53 US$433,838
2025-11-12 2025-11-10 S Sale
3.0
STANG ERIC B
Non-Executive Director
4,000 -16.4%
111.79
US$447,140 		4,000 -16.4% 111.79 US$447,140
2025-11-10 2025-11-10 PrS Proposed sale
3.0
STANG FAMILY TRUST

Officer

Officer
4,000
111.79
US$447,140 		4,000 111.79 US$447,140
2025-11-12 2025-11-07 S Sale
3.0
STANG ERIC B
Non-Executive Director
5,000 -17.0%
102.35
US$511,760 		5,000 -17.0% 102.35 US$511,760
2025-11-07 2025-11-07 PrS Proposed sale
3.0
STANG FAMILY TRUST

Officer

Officer
5,000
102.35
US$511,760 		5,000 102.35 US$511,760
2025-10-06 2025-10-06 PrS Proposed sale
DESMOND M LYNCH

Officer

Officer
9,074
101.50
US$920,972 		9,074 101.50 US$920,972
2025-10-06 2025-10-06 PlS Planned sale
Lynch Desmond

SVP, CFO

Officer
3,607 -6.1%
101.99
US$367,887 		3,607 -6.1% 101.99 US$367,887
2025-10-06 2025-10-06 PlS Planned sale
Lynch Desmond

SVP, CFO

Officer
5,467 -8.5%
101.17
US$553,086 		5,467 -8.5% 101.17 US$553,086
2025-10-02 2025-10-01 PlS Planned sale
1.9
Rao Meera
Non-Executive Director
653 -2.2%
101.99
US$66,599 		653 -2.2% 101.99 US$66,599
2025-10-01 2025-10-01 PrS Proposed sale
1.9
MEERA RAO

Director

Non-Executive Director
653
101.99
US$66,599 		653 101.99 US$66,599
2025-09-16 2025-09-15 PlS Planned sale
Lynch Desmond

SVP, CFO

Officer
9,074 -12.3%
91.70
US$832,099 		9,074 -12.3% 91.70 US$832,099
2025-09-15 2025-09-15 PrS Proposed sale
DESMOND M LYNCH

Officer

Officer
9,074
91.70
US$832,098 		9,074 91.70 US$832,098
2025-09-12 2025-09-11 S Sale
2.4
Sayiner Necip
Non-Executive Director
7,500 -19.6%
85.63
US$642,226 		7,500 -19.6% 85.63 US$642,226
2025-09-11 2025-09-11 PrS Proposed sale
2.4
NECIP SAYINER

Director

Non-Executive Director
7,500
85.63
US$642,226 		7,500 85.63 US$642,226
2025-09-04 2025-09-02 PlS Planned sale
1.9
Rao Meera
Non-Executive Director
3,000 -9.1%
71.72
US$215,160 		3,000 -9.1% 71.72 US$215,160
2025-09-02 2025-09-02 PrS Proposed sale
1.9
MEERA RAO

Director

Non-Executive Director
3,000
71.72
US$215,160 		3,000 71.72 US$215,160
2025-09-02 2025-08-29 S Sale
1.7
LAUB STEVEN
Non-Executive Director
2,261 -25.0%
78.72
US$177,995 		2,261 -25.0% 78.72 US$177,995
2025-08-29 2025-08-29 PrS Proposed sale
1.7
STEVEN LAUB

Director

Non-Executive Director
2,261
78.72
US$177,995 		2,261 78.72 US$177,995
2025-08-15 2025-08-13 S Sale
2.8
Higashi Emiko
Non-Executive Director
1,075 -1.7%
77.75
US$83,581 		1,075 -1.7% 77.75 US$83,581
2025-08-13 2025-08-13 PrS Proposed sale
2.8
EMIKO HIGASHI

Director

Non-Executive Director
1,075
77.75
US$83,581 		1,075 77.75 US$83,581
2025-08-11 2025-08-08 S Sale
2.4
Sayiner Necip
Non-Executive Director
7,500 -16.4%
73.53
US$551,448 		7,500 -16.4% 73.53 US$551,448
2025-08-08 2025-08-08 PrS Proposed sale
2.4
NECIP SAYINER

Director

Non-Executive Director
7,500
73.53
US$551,447 		7,500 73.53 US$551,447
2025-08-06 2025-08-04 S Sale
2.8
Higashi Emiko
Non-Executive Director
1,111 -1.7%
75.00
US$83,325 		1,111 -1.7% 75.00 US$83,325
2025-08-05 2025-08-04 S Sale
2.9
Shinn John

SVP, General Counsel

Officer
790 -3.8%
74.61
US$58,945 		790 -3.8% 74.61 US$58,945
2025-08-04 2025-08-04 PrS Proposed sale
2.8
EMIKO HIGASHI

Director

Non-Executive Director
1,111
75.00
US$83,325 		1,111 75.00 US$83,325
2025-08-04 2025-08-04 PrS Proposed sale
2.9
JOHN SHINN

Officer

Officer
790
74.61
US$58,945 		790 74.61 US$58,945
2025-05-28 2025-05-27 S Sale
1.7
LAUB STEVEN
Non-Executive Director
1,847 -16.9%
55.13
US$101,816 		1,847 -16.9% 55.13 US$101,816
2025-05-20 2025-05-19 S Sale
1.7
LAUB STEVEN
Non-Executive Director
3,653 -25.1%
55.56
US$202,961 		3,653 -25.1% 55.56 US$202,961
2025-05-19 2025-05-19 PrS Proposed sale
1.7
LAUB STEVEN

Director

Non-Executive Director
5,500
55.56
US$305,580 		5,500 55.56 US$305,580
2025-05-12 2025-05-09 S Sale
3.0
STANG ERIC B
Non-Executive Director
3,653 -11.1%
51.13
US$186,778 		3,653 -11.1% 51.13 US$186,778
2025-05-09 2025-05-09 PrS Proposed sale
3.0
STANG FAMILY TRUST

Director

Non-Executive Director
3,653
51.13
US$186,778 		3,653 51.13 US$186,778
2025-05-06 2025-05-05 PlS Planned sale
Lynch Desmond

SVP, CFO

Officer
3,118 -4.0%
50.31
US$156,867 		3,118 -4.0% 50.31 US$156,867
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