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United States Semiconductors & Semiconductor Equipment

Rambus Inc (RMBS)

Track

Over the last 90 days, Rambus Inc. has seen significant insider selling, with a net value of over $11.3 million. Executives contributed over $5.8 million to this net selling activity. The stock has experienced a substantial price increase of 51.2% in the same period, reaching a high near its 52-week peak.
Stock chart
Ticker: RMBS Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Sayiner Necip
1 sale — total 100,000 USD
Sale 3 Jun 2026
Value US$1,569,623.69 | Price 414.59 | Shares 1,723
Proposed sale 3 Jun 2026
Value US$4,335,635.30 | Price 228.01 | Shares 52,928
Sale 2 Jun 2026
Value US$100,000.00 | Price 158.00 | Shares 1,000
Sale 2 Jun 2026
Value US$100,000.00 | Price 163.00 | Shares 1,000
Proposed sale 2 Jun 2026
Value US$100,000.00 | Price 160.50 | Shares 1,000
Sale 1 Jun 2026
Value US$100,000.00 | Price 146.00 | Shares 1,000
Proposed sale 1 Jun 2026
Value US$730,000.00 | Price 146.00 | Shares 5,000
Sale 26 May 2026
Value US$787,850.50 | Price 157.57 | Shares 5,000
Proposed sale 26 May 2026
Value US$787,850.50 | Price 157.57 | Shares 5,000
Sale 26 May 2026
Value US$15,235.00 | Price 152.35 | Shares 100
Sale 26 May 2026
Value US$5,735,990.53 | Price 151.69 | Shares 37,814
Proposed sale 26 May 2026
Value US$5,751,227.74 | Price 151.69 | Shares 37,914
Sale 22 May 2026
Value US$143,630.00 | Price 143.63 | Shares 1,000
Proposed sale 22 May 2026
Value US$143,630.00 | Price 143.63 | Shares 1,000
Sale 8 May 2026
Value US$1,278,888.32 | Price 130.18 | Shares 9,824
Proposed sale 8 May 2026
Value US$1,278,888.32 | Price 130.18 | Shares 9,824
Sale 7 May 2026
Value US$188,279.25 | Price 125.52 | Shares 1,500
Proposed sale 7 May 2026
Value US$188,279.25 | Price 125.52 | Shares 1,500
Planned sale 24 Apr 2026
Value US$446,691.60 | Price 150.30 | Shares 2,972
Proposed sale 24 Apr 2026
Value US$446,691.60 | Price 150.30 | Shares 2,972
Planned sale 14 Apr 2026
Value US$1,008,167.04 | Price 118.08 | Shares 8,538
Proposed sale 14 Apr 2026
Value US$1,008,167.04 | Price 118.08 | Shares 8,538
Planned sale 2 Apr 2026
Value US$14,577.77 | Price 88.35 | Shares 165
Planned sale 2 Apr 2026
Value US$239,564.88 | Price 87.11 | Shares 2,750
Planned sale 2 Apr 2026
Value US$216,045.44 | Price 86.04 | Shares 2,511
Proposed sale 2 Apr 2026
Value US$135,920.20 | Price 85.70 | Shares 1,586
Proposed sale 2 Apr 2026
Value US$135,920.20 | Price 85.70 | Shares 1,586
Proposed sale 2 Apr 2026
Value US$470,187.86 | Price 86.65 | Shares 5,426
Planned sale 10 Mar 2026
Value US$17,909.00 | Price 89.55 | Shares 200
Planned sale 10 Mar 2026
Value US$386,098.85 | Price 88.64 | Shares 4,356
Proposed sale 10 Mar 2026
Value US$404,007.86 | Price 88.68 | Shares 4,556
Planned sale 3 Mar 2026
Value US$66,420.97 | Price 94.89 | Shares 700
Planned sale 3 Mar 2026
Value US$150,793.89 | Price 94.07 | Shares 1,603
Planned sale 3 Mar 2026
Value US$209,104.48 | Price 92.77 | Shares 2,254
Proposed sale 3 Mar 2026
Value US$426,319.20 | Price 93.55 | Shares 4,557
Planned sale 2 Mar 2026
Value US$132,149.94 | Price 101.65 | Shares 1,300
Planned sale 2 Mar 2026
Value US$660,003.57 | Price 100.20 | Shares 6,587
Planned sale 2 Mar 2026
Value US$939,001.91 | Price 99.17 | Shares 9,469
Planned sale 2 Mar 2026
Value US$1,341,071.30 | Price 98.22 | Shares 13,654
Planned sale 2 Mar 2026
Value US$703,569.06 | Price 97.38 | Shares 7,225
Planned sale 2 Mar 2026
Value US$160,900.58 | Price 95.83 | Shares 1,679
Proposed sale 2 Mar 2026
Value US$3,936,697.86 | Price 98.63 | Shares 39,914
Planned sale 23 Feb 2026
Value US$433,837.69 | Price 101.53 | Shares 4,273
Proposed sale 23 Feb 2026
Value US$433,837.69 | Price 101.53 | Shares 4,273
Sale 10 Nov 2025
Value US$447,140.00 | Price 111.79 | Shares 4,000
Proposed sale 10 Nov 2025
Value US$447,140.00 | Price 111.79 | Shares 4,000
Sale 7 Nov 2025
Value US$511,760.00 | Price 102.35 | Shares 5,000
Proposed sale 7 Nov 2025
Value US$511,760.00 | Price 102.35 | Shares 5,000
Proposed sale 6 Oct 2025
Value US$920,971.98 | Price 101.50 | Shares 9,074
Planned sale 6 Oct 2025
Value US$367,886.59 | Price 101.99 | Shares 3,607
Planned sale 6 Oct 2025
Value US$553,086.00 | Price 101.17 | Shares 5,467
Planned sale 1 Oct 2025
Value US$66,599.47 | Price 101.99 | Shares 653
Proposed sale 1 Oct 2025
Value US$66,599.47 | Price 101.99 | Shares 653
Planned sale 15 Sep 2025
Value US$832,098.50 | Price 91.70 | Shares 9,074
Proposed sale 15 Sep 2025
Value US$832,098.50 | Price 91.70 | Shares 9,074
Sale 11 Sep 2025
Value US$642,225.75 | Price 85.63 | Shares 7,500
Proposed sale 11 Sep 2025
Value US$642,225.75 | Price 85.63 | Shares 7,500
Planned sale 2 Sep 2025
Value US$215,160.00 | Price 71.72 | Shares 3,000
Proposed sale 2 Sep 2025
Value US$215,160.00 | Price 71.72 | Shares 3,000
Sale 29 Aug 2025
Value US$177,994.96 | Price 78.72 | Shares 2,261
Proposed sale 29 Aug 2025
Value US$177,994.96 | Price 78.72 | Shares 2,261
Sale 13 Aug 2025
Value US$83,581.25 | Price 77.75 | Shares 1,075
Proposed sale 13 Aug 2025
Value US$83,581.25 | Price 77.75 | Shares 1,075
Sale 8 Aug 2025
Value US$551,448.00 | Price 73.53 | Shares 7,500
Proposed sale 8 Aug 2025
Value US$551,447.25 | Price 73.53 | Shares 7,500
Sale 4 Aug 2025
Value US$83,325.00 | Price 75.00 | Shares 1,111
Sale 4 Aug 2025
Value US$58,944.90 | Price 74.61 | Shares 790
Proposed sale 4 Aug 2025
Value US$83,325.00 | Price 75.00 | Shares 1,111
Proposed sale 4 Aug 2025
Value US$58,944.90 | Price 74.61 | Shares 790
Sale 27 May 2025
Value US$101,815.88 | Price 55.13 | Shares 1,847
Sale 19 May 2025
Value US$202,960.68 | Price 55.56 | Shares 3,653
Proposed sale 19 May 2025
Value US$305,580.00 | Price 55.56 | Shares 5,500
Sale 9 May 2025
Value US$186,777.89 | Price 51.13 | Shares 3,653
Proposed sale 9 May 2025
Value US$186,777.89 | Price 51.13 | Shares 3,653
Planned sale 5 May 2025
Value US$156,866.58 | Price 50.31 | Shares 3,118
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
2.3
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
2.3
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
2.1
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
2.1
Higashi Emiko
Non-Executive Director
1,000 -8.4%
163.00
US$100,000 		1,000 -8.4% 163.00 US$100,000
2026-06-02 2026-06-02 PrS Proposed sale
2.1
EMIKO HIGASHI

Director

Non-Executive Director
1,000
160.50
US$100,000 		1,000 160.50 US$100,000
2026-06-02 2026-06-01 S Sale
3.1
STANG ERIC B
Non-Executive Director
1,000 -20.6%
146.00
US$100,000 		1,000 -20.6% 146.00 US$100,000
2026-06-01 2026-06-01 PrS Proposed sale
3.1
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
2.1
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
2.1
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
2.8
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
2.8
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
2.8
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
2.8
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
2.8
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
2.3
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
2.3
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
2.8
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
2.8
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
2.8
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
2.8
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
2.8
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
2.8
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
2.8
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
3.1
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
3.1
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
3.1
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
3.1
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
2.3
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
2.3
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
2.1
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
2.1
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
2.3
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
2.3
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
2.1
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
2.8
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
2.1
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
2.8
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
3.1
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
3.1
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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