The Filings Report

Rambus Inc insider trading

RMBSfinancial statementsForm 4 filings on EDGAR117 transactions since Nov 3, 2024

From August 6, 2026 to November 3, 2026, 0 insiders at Rambus Inc bought $0 of stock in the open market, and 1 sold $2M. Officers and directors accounted for $0 of purchases and $2M of sales. The last reported transaction was an open-market sale by Kissner Charles on October 2, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through October 5, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

RMBS daily priceSplit-adjusted prices in US dollars

Bought $0Sold $2MAug 6, 2026 – Nov 3, 2026

Nov 3, 2026O $86.63 · H $89.50 · L $85.61 · C $88.18Bought $0 (0)Sold $0 (0)
$78$88$97$107$1172026-08-06: open $94.54, high $101.65, low $93.78, close $97.682026-08-07: open $100.92, high $103.50, low $100.21, close $101.522026-08-10: open $101.95, high $101.98, low $95.80, close $95.892026-08-11: open $98.93, high $98.93, low $94.94, close $96.422026-08-12: open $101.00, high $102.57, low $98.90, close $101.012026-08-13: open $99.60, high $102.93, low $99.00, close $99.332026-08-14: open $99.06, high $101.04, low $97.75, close $100.852026-08-17: open $102.38, high $104.11, low $100.53, close $100.612026-08-18: open $95.89, high $97.62, low $91.86, close $93.712026-08-19: open $95.05, high $96.52, low $89.26, close $90.852026-08-20: open $91.82, high $93.35, low $91.00, close $92.152026-08-21: open $92.32, high $92.67, low $89.80, close $91.242026-08-24: open $89.16, high $89.43, low $86.15, close $87.072026-08-25: open $89.98, high $90.68, low $88.13, close $89.862026-08-26: open $89.60, high $90.93, low $88.55, close $90.032026-08-27: open $91.70, high $92.90, low $89.77, close $91.112026-08-28: open $89.88, high $89.99, low $84.74, close $85.762026-08-31: open $86.25, high $87.70, low $85.80, close $86.692026-09-01: open $84.96, high $85.30, low $82.97, close $84.402026-09-02: open $84.05, high $84.80, low $82.09, close $84.722026-09-03: open $83.45, high $84.82, low $81.48, close $84.342026-09-04: open $85.86, high $86.32, low $83.82, close $85.462026-09-08: open $87.30, high $88.58, low $86.00, close $86.892026-09-09: open $86.46, high $89.41, low $86.20, close $87.652026-09-10: open $84.87, high $86.81, low $84.15, close $85.352026-09-11: open $86.63, high $88.15, low $85.81, close $86.972026-09-14: open $81.32, high $82.40, low $80.00, close $80.392026-09-15: open $81.68, high $83.33, low $80.81, close $83.112026-09-16: open $84.42, high $84.43, low $80.39, close $81.412026-09-17: open $84.45, high $85.99, low $83.78, close $85.872026-09-18: open $87.48, high $87.94, low $84.83, close $87.602026-09-21: open $90.48, high $98.57, low $88.38, close $96.962026-09-22: open $96.04, high $106.74, low $95.69, close $105.242026-09-23: open $105.08, high $106.56, low $100.42, close $103.472026-09-24: open $101.62, high $108.62, low $101.12, close $104.552026-09-25: open $106.61, high $107.31, low $103.43, close $105.162026-09-28: open $104.19, high $104.57, low $99.34, close $102.122026-09-29: open $104.57, high $104.87, low $101.65, close $103.122026-09-30: open $103.12, high $107.64, low $101.42, close $106.762026-10-01: open $106.91, high $108.62, low $105.53, close $107.292026-10-02: open $111.00, high $113.28, low $110.20, close $111.972026-10-05: open $111.92, high $113.08, low $108.82, close $110.302026-10-06: open $111.46, high $114.97, low $109.78, close $114.092026-10-07: open $110.94, high $112.27, low $109.25, close $111.482026-10-08: open $108.51, high $111.55, low $106.30, close $108.472026-10-09: open $110.82, high $110.82, low $104.54, close $107.472026-10-12: open $105.35, high $105.35, low $100.80, close $101.042026-10-13: open $97.60, high $99.00, low $95.83, close $98.172026-10-14: open $95.95, high $96.76, low $91.89, close $92.112026-10-15: open $88.82, high $93.39, low $86.78, close $92.872026-10-16: open $90.59, high $91.30, low $86.85, close $87.252026-10-19: open $91.69, high $94.24, low $90.65, close $92.662026-10-20: open $90.87, high $94.84, low $89.00, close $92.422026-10-21: open $94.60, high $95.00, low $91.89, close $92.802026-10-22: open $88.09, high $90.50, low $85.01, close $85.732026-10-23: open $85.72, high $89.22, low $84.43, close $85.652026-10-26: open $86.05, high $92.64, low $83.50, close $90.322026-10-27: open $93.19, high $93.87, low $85.47, close $88.912026-10-28: open $89.93, high $91.16, low $87.97, close $91.032026-10-29: open $88.98, high $91.86, low $87.89, close $90.992026-10-30: open $84.81, high $88.07, low $82.12, close $84.652026-11-02: open $85.66, high $86.64, low $83.55, close $84.012026-11-03: open $86.63, high $89.50, low $85.61, close $88.18Insider purchases / sales · USD$1M$0−$1M2026-08-07: 0 purchases ($0), 1 sales ($505K)2026-09-22: 0 purchases ($0), 1 sales ($525K)2026-10-02: 0 purchases ($0), 1 sales ($555K)Aug 6Aug 28Sep 21Oct 13Nov 3

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Nov 3, 2026. Insider data through Nov 3, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

117 transactions from November 3, 2024 to November 3, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Oct 2, 2026Kissner CharlesDirectoropen-market sale10b5-1indirect5,000$111.00$555K3,747Oct 5, 2026
Sep 22, 2026Kissner CharlesDirectoropen-market sale10b5-1indirect5,000$105.00$525K8,747Sep 24, 2026
Aug 7, 2026Kissner CharlesDirectoropen-market sale10b5-1indirect5,000$100.92$505K13,747Aug 10, 2026
Jun 3, 2026Sayiner NecipDirectoropen-market sale5,000$170.15$851K18,223Jun 3, 2026
Jun 2, 2026Higashi EmikoDirectoropen-market sale5,000$163.00$815K54,519Jun 3, 2026
Jun 2, 2026Higashi EmikoDirectoropen-market sale5,000$158.00$790K49,519Jun 3, 2026
Jun 1, 2026Stang Eric BDirectoropen-market saleindirect5,000$146.00$730K19,218Jun 2, 2026
May 26, 2026Higashi EmikoDirectoropen-market sale5,000$157.57$788K59,519May 27, 2026
May 26, 2026Fan Xianzhi SeanEVP, COOopen-market sale37,814$151.69$6M168,458May 26, 2026
May 26, 2026Fan Xianzhi SeanEVP, COOopen-market sale100$152.35$15K168,358May 26, 2026
May 22, 2026Shinn JohnSVP, General Counselopen-market sale1,000$143.63$144K21,112May 26, 2026
May 8, 2026Sayiner NecipDirectoropen-market sale9,824$130.18$1M23,223May 11, 2026
May 7, 2026Laub StevenDirectoropen-market sale1,500$125.52$188K7,519May 11, 2026
May 1, 2026Gagneja SumeetSVP, CFOaward14,518$0.00—14,518May 4, 2026
May 1, 2026Gagneja SumeetSVP, CFOaward26,802$0.00—41,320May 4, 2026
Apr 24, 2026Rao MeeraDirectoropen-market sale10b5-12,972$150.30$447K19,974Apr 27, 2026
Apr 14, 2026Rao MeeraDirectoropen-market sale10b5-18,538$118.08$1M22,946Apr 15, 2026
Apr 3, 2026Allen John KChief Accounting Officertax withholding1,131$92.22$104K17,131Apr 7, 2026
Apr 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-12,511$86.04$216K348,682Apr 3, 2026
Apr 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-12,750$87.11$240K345,932Apr 3, 2026
Apr 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-1165$88.35$15K345,767Apr 3, 2026
Apr 1, 2026Higashi EmikoDirectoraward2,223$0.00—64,519Apr 3, 2026
Apr 1, 2026Laub StevenDirectoraward2,223$0.00—9,019Apr 3, 2026
Apr 1, 2026Rao MeeraDirectoraward2,223$0.00—31,484Apr 3, 2026
Apr 1, 2026Sayiner NecipDirectoraward2,223$0.00—33,047Apr 3, 2026
Apr 1, 2026Stang Eric BDirectoraward2,223$0.00—2,223Apr 3, 2026
Apr 1, 2026Peng VictorDirectoraward2,223$0.00—2,391Apr 3, 2026
Apr 1, 2026Kissner CharlesDirectoraward2,223$0.00—40,545Apr 3, 2026
Apr 1, 2026Shinn JohnSVP, General Counselaward5,558$0.00—24,025Apr 3, 2026
Apr 1, 2026Shinn JohnSVP, General Counseltax withholding1,913$89.95$172K22,112Apr 3, 2026
Apr 1, 2026Seraphin LucPresident and CEO, Directoraward32,684$0.00—363,754Apr 3, 2026
Apr 1, 2026Seraphin LucPresident and CEO, Directortax withholding12,561$89.95$1M351,193Apr 3, 2026
Apr 1, 2026Fan Xianzhi SeanEVP, COOaward22,234$0.00—216,188Apr 3, 2026
Apr 1, 2026Fan Xianzhi SeanEVP, COOtax withholding9,916$89.95$892K206,272Apr 3, 2026
Apr 1, 2026Allen John KChief Accounting Officeraward2,779$0.00—19,415Apr 3, 2026
Apr 1, 2026Allen John KChief Accounting Officertax withholding495$89.95$45K18,920Apr 3, 2026
Apr 1, 2026Allen John KChief Accounting Officertax withholding658$89.95$59K18,262Apr 3, 2026
Mar 10, 2026Shinn JohnSVP, General Counselopen-market sale10b5-1200$89.55$18K18,467Mar 11, 2026
Mar 10, 2026Shinn JohnSVP, General Counselopen-market sale10b5-14,356$88.64$386K18,667Mar 11, 2026
Mar 3, 2026Shinn JohnSVP, General Counselopen-market sale10b5-11,603$94.07$151K23,723Mar 4, 2026
Mar 3, 2026Shinn JohnSVP, General Counselopen-market sale10b5-12,254$92.77$209K25,326Mar 4, 2026
Mar 3, 2026Shinn JohnSVP, General Counselopen-market sale10b5-1700$94.89$66K23,023Mar 4, 2026
Mar 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-11,679$95.83$161K369,305Mar 3, 2026
Mar 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-19,469$99.17$939K338,957Mar 3, 2026
Mar 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-113,654$98.22$1M348,426Mar 3, 2026
Mar 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-17,225$97.38$704K362,080Mar 3, 2026
Mar 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-11,300$101.65$132K331,070Mar 3, 2026
Mar 2, 2026Seraphin LucPresident and CEO, Directoropen-market sale10b5-16,587$100.20$660K332,370Mar 3, 2026
Mar 2, 2026Peng VictorDirectoraward168$0.00—168Mar 3, 2026
Feb 23, 2026Lynch DesmondSVP, CFOopen-market sale10b5-14,273$101.53$434K63,618Feb 24, 2026

Who the insiders are

Everyone who reported a transaction since November 3, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Fan Xianzhi SeanEVP, COOMay 26, 2026open-market sale168,458—$6M (2)0 of 2
Seraphin LucPresident and CEO, DirectorApr 2, 2026open-market sale348,682—$4M (9)9 of 9
Higashi EmikoDirectorJun 2, 2026open-market sale54,519—$2M (3)0 of 3
Sayiner NecipDirectorJun 3, 2026open-market sale18,223—$2M (2)0 of 2
Stang Eric BDirectorJun 1, 2026open-market sale2,223—$2M (3)0 of 3
Kissner CharlesDirectorOct 2, 2026open-market sale40,545—$2M (3)3 of 3
Rao MeeraDirectorApr 24, 2026open-market sale19,974—$1M (2)2 of 2
Shinn JohnSVP, General CounselMay 22, 2026open-market sale21,112—$974K (6)5 of 6
Lynch DesmondSVP, CFOFeb 23, 2026open-market sale63,618—$434K (1)1 of 1
Laub StevenDirectorMay 7, 2026open-market sale7,519—$188K (1)0 of 1
Allen John KChief Accounting OfficerApr 3, 2026tax withholding17,131———
Gagneja SumeetSVP, CFOMay 1, 2026award14,518———
Peng VictorDirectorApr 1, 2026award2,391———

Questions

Are Rambus Inc insiders buying or selling?

Over the twelve months to November 3, 2026, 10 insiders at Rambus Inc sold $21M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $21M. Only open-market purchases and sales are counted.

Who sold the most Rambus Inc stock in the last year?

Fan Xianzhi Sean (EVP, COO) sold $6M in 2 open-market sales over the twelve months to November 3, 2026.

Do Rambus Inc executives sell under 10b5-1 plans?

20 of the 32 open-market sales in the last twelve months (63%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on Rambus Inc

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.