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Rambus Inc

RMBS
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0000917273

In the last 90 days, Rambus Inc insiders filed 0 open-market purchases and 2 sales; 620 institutions reported holding it in 13F filings for Q2 2026, worth $13.3B in total; superinvestors Duquesne Family Office and Maverick Capital hold it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Rambus Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
2 filings
1 insider, $1.03M in total
Insiders trading
1
Net value
−$1.03M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Rambus Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Rambus Inc
NameTitleLast reported holdingLast filingFilings, past year
Kissner CharlesDirector8,747IndirectSep 24, 20263
Higashi EmikoDirector49,519Jun 3, 20263
Sayiner NecipDirector18,223Jun 3, 20263
Stang Eric BDirector19,218IndirectJun 2, 20263
Fan Xianzhi SeanEVP, COO168,358May 26, 20265
Shinn JohnSVP, General Counsel21,112May 26, 20265
Laub StevenDirector7,519May 11, 20262
Gagneja SumeetSVP, CFO41,320May 4, 20261
Rao MeeraDirector19,974Apr 27, 20264
Allen John KChief Accounting Officer17,131Apr 7, 20262
Peng VictorDirector2,391Apr 3, 20262
Seraphin LucPresident and CEO345,767Apr 3, 20263
Lynch DesmondSVP, CFO63,618Feb 24, 20263
Rogge Karen MDirector17,364Apr 5, 20230
Mitarotonda James ADirector13,946Apr 4, 20220
Saraf SanjayDirector50,241Apr 4, 20220
Jones Keith APrincipal Accounting Officer54,719Mar 3, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 24, 2026 (view filing)1:04 PM ETSep 222 daysKissner CharlesDirectorSSale−5.00K$105.00−$525.0K−36.4%8.75K after10b5-1
Aug 10, 2026 (view filing)7:58 PM ETAug 73 daysKissner CharlesDirectorSSale−5.00K$100.92−$504.6K−26.7%13.7K after10b5-1
Jun 3, 2026 (view filing)Jun 3Same daySayiner NecipDirectorSSale−5.00K$170.15−$850.8K−21.5%18.2K after
Jun 3, 2026 (view filing)Jun 21 dayHigashi EmikoDirectorSSale−10.0K$160.50−$1.60M−16.8%49.5K after2 lots
Jun 2, 2026 (view filing)Jun 11 dayStang Eric BDirectorSSale−5.00K$146.00−$730.0K−20.6%19.2K after
May 27, 2026 (view filing)May 261 dayHigashi EmikoDirectorSSale−5.00K$157.57−$787.9K−7.7%59.5K after
May 26, 2026 (view filing)May 26Same dayFan Xianzhi SeanEVP, COOSSale−37.9K$151.69−$5.75M−18.4%168.4K after2 lots
May 26, 2026 (view filing)May 224 daysShinn JohnSVP, General CounselSSale−1.00K$143.63−$143.6K−4.5%21.1K after
May 11, 2026 (view filing)May 83 daysSayiner NecipDirectorSSale−9.82K$130.18−$1.28M−29.7%23.2K after
May 11, 2026 (view filing)May 74 daysLaub StevenDirectorSSale−1.50K$125.52−$188.3K−16.6%7.52K after
Apr 27, 2026 (view filing)Apr 243 daysRao MeeraDirectorSSale−2.97K$150.30−$446.7K−13.0%20.0K after10b5-1
Apr 15, 2026 (view filing)Apr 141 dayRao MeeraDirectorSSale−8.54K$118.08−$1.01M−27.1%22.9K after10b5-1
Apr 3, 2026 (view filing)Apr 21 daySeraphin LucPresident and CEOSSale−5.43K$86.65−$470.2K−1.5%345.8K after3 lots10b5-1
Mar 11, 2026 (view filing)Mar 101 dayShinn JohnSVP, General CounselSSale−4.56K$88.68−$404.0K−19.8%18.5K after2 lots10b5-1
Mar 4, 2026 (view filing)Mar 31 dayShinn JohnSVP, General CounselSSale−4.56K$93.55−$426.3K−16.5%23.0K after3 lots10b5-1
Mar 3, 2026 (view filing)Mar 21 daySeraphin LucPresident and CEOSSale−39.9K$98.63−$3.94M−10.8%331.1K after6 lots10b5-1
Feb 24, 2026 (view filing)Feb 231 dayLynch DesmondSVP, CFOSSale−4.27K$101.53−$433.8K−6.3%63.6K after10b5-1
Nov 12, 2025 (view filing)Nov 7-105 daysStang Eric BDirectorSSale−9.00K$106.55−$958.9K−30.6%20.4K after2 lots
Oct 6, 2025 (view filing)Oct 6Same dayLynch DesmondSVP, CFOSSale−9.07K$101.50−$921.0K−14.1%55.4K after2 lots10b5-1
Oct 2, 2025 (view filing)Oct 11 dayRao MeeraDirectorSSale−653$101.99−$66.6K−2.2%29.3K after10b5-1
Sep 16, 2025 (view filing)Sep 151 dayLynch DesmondSVP, CFOSSale−9.07K$91.70−$832.1K−12.3%64.4K after10b5-1
Sep 12, 2025 (view filing)Sep 111 daySayiner NecipDirectorSSale−7.50K$85.63−$642.2K−19.6%30.8K after
Sep 4, 2025 (view filing)Sep 22 daysRao MeeraDirectorSSale−3.00K$71.72−$215.2K−9.1%29.9K after10b5-1
Sep 2, 2025 (view filing)Aug 294 daysLaub StevenDirectorSSale−2.26K$78.72−$178.0K−25.0%6.80K after
Aug 15, 2025 (view filing)Aug 132 daysHigashi EmikoDirectorSSale−1.07K$77.75−$83.6K−1.7%62.3K after
Aug 11, 2025 (view filing)Aug 83 daysSayiner NecipDirectorSSale−7.50K$73.53−$551.5K−16.4%38.3K after
Aug 6, 2025 (view filing)Aug 42 daysHigashi EmikoDirectorSSale−1.11K$75.00−$83.3K−1.7%63.4K after
Aug 5, 2025 (view filing)Aug 41 dayShinn JohnSVP, General CounselSSale−790$74.61−$58.9K−3.8%20.2K after
May 28, 2025 (view filing)May 271 dayLaub StevenDirectorSSale−1.85K$55.13−$101.8K−16.9%9.06K after
May 20, 2025 (view filing)May 191 dayLaub StevenDirectorSSale−3.65K$55.56−$203.0K−25.1%10.9K after
May 12, 2025 (view filing)May 93 daysStang Eric BDirectorSSale−3.65K$51.13−$186.8K−11.1%29.4K after
May 6, 2025 (view filing)May 51 dayLynch DesmondSVP, CFOSSale−3.12K$50.31−$156.9K−4.0%75.8K after10b5-1
Apr 24, 2025 (view filing)Apr 22-232 daysSeraphin LucPresident and CEOSSale−7.60K$46.64−$354.6K−2.3%319.2K after2 lots10b5-1
Apr 16, 2025 (view filing)Apr 151 daySeraphin LucPresident and CEOSSale−10.0K$47.79−$477.9K−3.0%326.8K after10b5-1
Apr 8, 2025 (view filing)Apr 8Same daySeraphin LucPresident and CEOSSale−10.0K$46.81−$468.1K−2.9%336.8K after10b5-1
Apr 3, 2025 (view filing)Apr 12 daysSeraphin LucPresident and CEOSSale−10.0K$50.88−$508.8K−2.8%346.8K after10b5-1
Mar 26, 2025 (view filing)Mar 251 daySeraphin LucPresident and CEOSSale−10.0K$58.64−$586.4K−3.2%306.9K after10b5-1
Mar 25, 2025 (view filing)Mar 214 daysShinn JohnSVP, General CounselSSale−7.63K$55.73−$425.3K−36.7%13.2K after10b5-1
Mar 19, 2025 (view filing)Mar 181 daySeraphin LucPresident and CEOSSale−10.0K$53.79−$537.9K−3.1%316.9K after10b5-1
Mar 17, 2025 (view filing)Mar 143 daysShinn JohnSVP, General CounselSSale−7.63K$52.98−$404.4K−26.8%20.8K after10b5-1
Mar 17, 2025 (view filing)Mar 143 daysLynch DesmondSVP, CFOSSale−3.74K$53.27−$199.4K−5.6%62.6K after10b5-1
Feb 19, 2025 (view filing)Feb 19Same daySayiner NecipDirectorSSale−4.63K$66.74−$308.7K−9.9%42.0K after
Feb 19, 2025 (view filing)Feb 19Same dayFan Xianzhi SeanEVP, COOSSale−52.3K$68.02−$3.56M−35.8%93.8K after
Dec 13, 2024 (view filing)Dec 121 dayRao MeeraDirectorSSale−5.41K$58.22−$314.9K−15.7%29.1K after
Dec 12, 2024 (view filing)Dec 12Same dayShinn JohnSVP, General CounselSSale−2.46K$58.13−$143.1K−10.7%20.6K after
May 8, 2024 (view filing)May 7-81 dayStang Eric BDirectorSSale−11.4K$56.37−$643.1K−30.2%26.4K after2 lots
Apr 16, 2024 (view filing)Apr 16Same daySeraphin LucPresident and CEOSSale−5.53K$58.66−$324.4K−2.1%262.8K after2 lots10b5-1
Apr 10, 2024 (view filing)Apr 91 daySeraphin LucPresident and CEOSSale−15.0K$61.35−$920.3K−5.3%268.3K after2 lots10b5-1
Apr 2, 2024 (view filing)Apr 2Same daySeraphin LucPresident and CEOSSale−15.0K$59.94−$899.0K−5.0%283.3K after2 lots10b5-1
Mar 27, 2024 (view filing)Mar 261 dayShinn JohnSVP, General CounselSSale−3.95K$62.71−$247.5K−19.2%16.7K after10b5-1