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RMBSRAMBUS INC

Market cap
$9.26B
as of 2026-10-23
Latest close
$85.65
as of 2026-10-23
Sector
Technology
as of 2026-10-24
Industry
Semiconductors
as of 2026-10-24

Cluster

No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).

Form 4 historysince 2023-11-07

InsiderTradedFiledTypeSharesPriceValueOwned after10b5-1 planFiling
Kissner CharlesOct 2Oct 5S5,000$111.00Sale −$555,0003,747YesForm 4
Kissner CharlesSep 22Sep 24S5,000$105.00Sale −$525,0008,747YesForm 4
Kissner CharlesAug 7Aug 10S5,000$100.92Sale −$504,60013,747YesForm 4
Sayiner NecipJun 3Jun 3S5,000$170.15Sale −$850,75018,223NoForm 4
Higashi EmikoJun 2Jun 3S5,000$163.00Sale −$815,00054,519NoForm 4
Higashi EmikoJun 2Jun 3S5,000$158.00Sale −$790,00049,519NoForm 4
Stang Eric BJun 1Jun 2S5,000$146.00Sale −$730,00019,218NoForm 4
Higashi EmikoMay 26May 27S5,000$157.57Sale −$787,85059,519NoForm 4
Fan Xianzhi SeanEVP, COOMay 26May 26S37,814$151.69Sale −$5,736,006168,458NoForm 4
Fan Xianzhi SeanEVP, COOMay 26May 26S100$152.35Sale −$15,235168,358NoForm 4
Shinn JohnSVP, General CounselMay 22May 26S1,000$143.63Sale −$143,63021,112NoForm 4
Sayiner NecipMay 8May 11S9,824$130.18Sale −$1,278,88823,223NoForm 4
Laub StevenMay 7May 11S1,500$125.52Sale −$188,2807,519NoForm 4
Gagneja SumeetSVP, CFOMay 1May 4A14,518$0.00$014,518NoForm 4
Gagneja SumeetSVP, CFOMay 1May 4A26,802$0.00$041,320NoForm 4
Rao MeeraApr 24Apr 27S2,972$150.30Sale −$446,69219,974YesForm 4
Rao MeeraApr 14Apr 15S8,538$118.08Sale −$1,008,16722,946YesForm 4
Allen John KChief Accounting OfficerApr 3Apr 7F1,131$92.22$104,30117,131NoForm 4
Seraphin LucPresident and CEOApr 2Apr 3S2,511$86.04Sale −$216,046348,682YesForm 4
Seraphin LucPresident and CEOApr 2Apr 3S2,750$87.11Sale −$239,553345,932YesForm 4
Seraphin LucPresident and CEOApr 2Apr 3S165$88.35Sale −$14,578345,767YesForm 4
Allen John KChief Accounting OfficerApr 1Apr 3A2,779$0.00$019,415NoForm 4
Allen John KChief Accounting OfficerApr 1Apr 3F495$89.95$44,52518,920NoForm 4
Allen John KChief Accounting OfficerApr 1Apr 3F658$89.95$59,18718,262NoForm 4
Fan Xianzhi SeanEVP, COOApr 1Apr 3A22,234$0.00$0216,188NoForm 4
Fan Xianzhi SeanEVP, COOApr 1Apr 3F9,916$89.95$891,944206,272NoForm 4
Seraphin LucPresident and CEOApr 1Apr 3A32,684$0.00$0363,754YesForm 4
Seraphin LucPresident and CEOApr 1Apr 3F12,561$89.95$1,129,862351,193YesForm 4
Shinn JohnSVP, General CounselApr 1Apr 3A5,558$0.00$024,025NoForm 4
Shinn JohnSVP, General CounselApr 1Apr 3F1,913$89.95$172,07422,112NoForm 4
Kissner CharlesApr 1Apr 3A2,223$0.00$040,545NoForm 4
Peng VictorApr 1Apr 3A2,223$0.00$02,391NoForm 4
Stang Eric BApr 1Apr 3A2,223$0.00$02,223NoForm 4
Sayiner NecipApr 1Apr 3A2,223$0.00$033,047NoForm 4
Rao MeeraApr 1Apr 3A2,223$0.00$031,484NoForm 4
Laub StevenApr 1Apr 3A2,223$0.00$09,019NoForm 4
Higashi EmikoApr 1Apr 3A2,223$0.00$064,519NoForm 4
Shinn JohnSVP, General CounselMar 10Mar 11S4,356$88.64Sale −$386,11618,667YesForm 4
Shinn JohnSVP, General CounselMar 10Mar 11S200$89.55Sale −$17,91018,467YesForm 4
Shinn JohnSVP, General CounselMar 3Mar 4S2,254$92.77Sale −$209,10425,326YesForm 4
Shinn JohnSVP, General CounselMar 3Mar 4S1,603$94.07Sale −$150,79423,723YesForm 4
Shinn JohnSVP, General CounselMar 3Mar 4S700$94.89Sale −$66,42323,023YesForm 4
Peng VictorMar 2Mar 3A168$0.00$0168NoForm 4
Seraphin LucPresident and CEOMar 2Mar 3S1,679$95.83Sale −$160,899369,305YesForm 4
Seraphin LucPresident and CEOMar 2Mar 3S7,225$97.38Sale −$703,571362,080YesForm 4
Seraphin LucPresident and CEOMar 2Mar 3S13,654$98.22Sale −$1,341,096348,426YesForm 4
Seraphin LucPresident and CEOMar 2Mar 3S9,469$99.17Sale −$939,041338,957YesForm 4
Seraphin LucPresident and CEOMar 2Mar 3S6,587$100.20Sale −$660,017332,370YesForm 4
Seraphin LucPresident and CEOMar 2Mar 3S1,300$101.65Sale −$132,145331,070YesForm 4
Lynch DesmondSVP, CFOFeb 23Feb 24S4,273$101.53Sale −$433,83863,618YesForm 4
Fan Xianzhi SeanEVP, COOFeb 1Feb 3A148,802$0.00$0286,357NoForm 4
Fan Xianzhi SeanEVP, COOFeb 1Feb 3F92,403$113.71$10,507,145193,954NoForm 4
Seraphin LucPresident and CEOFeb 1Feb 3A143,744$0.00$0463,507NoForm 4
Seraphin LucPresident and CEOFeb 1Feb 3F92,523$113.71$10,520,790370,984NoForm 4
Lynch DesmondSVP, CFOFeb 1Feb 3A34,554$0.00$089,996NoForm 4
Lynch DesmondSVP, CFOFeb 1Feb 3F22,105$113.71$2,513,56067,891NoForm 4
Shinn JohnSVP, General CounselFeb 1Feb 3A17,276$0.00$037,464NoForm 4
Shinn JohnSVP, General CounselFeb 1Feb 3F9,884$113.71$1,123,91027,580NoForm 4
Fan Xianzhi SeanEVP, COONov 21, 2025Nov 21, 2025G300$0.00$0137,555NoForm 4
Fan Xianzhi SeanEVP, COONov 19, 2025Nov 20, 2025G300$0.00$0137,855NoForm 4
Stang Eric BNov 10, 2025Nov 12, 2025S4,000$111.79Sale −$447,16020,394NoForm 4
Stang Eric BNov 7, 2025Nov 12, 2025S5,000$102.35Sale −$511,75024,394NoForm 4
Lynch DesmondSVP, CFOOct 6, 2025Oct 6, 2025S5,467$101.17Sale −$553,09658,963YesForm 4
Lynch DesmondSVP, CFOOct 6, 2025Oct 6, 2025S3,607$101.99Sale −$367,87855,356YesForm 4
Rao MeeraOct 1, 2025Oct 2, 2025S653$101.99Sale −$66,59929,261YesForm 4
Lynch DesmondSVP, CFOSep 15, 2025Sep 16, 2025S9,074$91.70Sale −$832,08664,430YesForm 4
Sayiner NecipSep 11, 2025Sep 12, 2025S7,500$85.63Sale −$642,22530,824NoForm 4
Rao MeeraSep 2, 2025Sep 4, 2025S3,000$71.72Sale −$215,16029,914YesForm 4
Lynch DesmondSVP, CFOSep 1, 2025Sep 3, 2025F2,725$73.49$200,26073,504NoForm 4
Laub StevenAug 29, 2025Sep 2, 2025S2,261$78.72Sale −$177,9866,796NoForm 4
Higashi EmikoAug 13, 2025Aug 15, 2025S1,075$77.75Sale −$83,58162,296NoForm 4
Sayiner NecipAug 8, 2025Aug 11, 2025S7,500$73.53Sale −$551,47538,324NoForm 4
Higashi EmikoAug 4, 2025Aug 6, 2025S1,111$75.00Sale −$83,32563,371NoForm 4
Shinn JohnSVP, General CounselAug 4, 2025Aug 5, 2025S790$74.61Sale −$58,94220,188NoForm 4
Laub StevenMay 27, 2025May 28, 2025S1,847$55.13Sale −$101,8259,057NoForm 4
Laub StevenMay 19, 2025May 20, 2025S3,653$55.56Sale −$202,96110,904NoForm 4
Stang Eric BMay 9, 2025May 12, 2025S3,653$51.13Sale −$186,77829,394NoForm 4
Lynch DesmondSVP, CFOMay 5, 2025May 6, 2025S3,118$50.31Sale −$156,86775,798YesForm 4
Seraphin LucPresident and CEOApr 23, 2025Apr 24, 2025S6,348$46.97Sale −$298,166319,241YesForm 4
Seraphin LucPresident and CEOApr 22, 2025Apr 24, 2025S1,255$45.00Sale −$56,475325,589YesForm 4
Seraphin LucPresident and CEOApr 15, 2025Apr 16, 2025S10,000$47.79Sale −$477,900326,844YesForm 4
Seraphin LucPresident and CEOApr 8, 2025Apr 8, 2025S10,000$46.81Sale −$468,100336,844YesForm 4
Allen John KChief Accounting OfficerApr 3, 2025Apr 3, 2025F1,129$46.15$52,10316,090NoForm 4
Seraphin LucPresident and CEOApr 1, 2025Apr 3, 2025A55,077$0.00$0362,008YesForm 4
Seraphin LucPresident and CEOApr 1, 2025Apr 3, 2025F5,164$52.29$270,026356,844YesForm 4
Seraphin LucPresident and CEOApr 1, 2025Apr 3, 2025S10,000$50.88Sale −$508,800346,844YesForm 4
Fan Xianzhi SeanEVP, COOApr 1, 2025Apr 3, 2025A47,810$0.00$0141,651NoForm 4
Fan Xianzhi SeanEVP, COOApr 1, 2025Apr 3, 2025F3,496$52.29$182,806138,155NoForm 4
Shinn JohnSVP, General CounselApr 1, 2025Apr 3, 2025A8,605$0.00$021,795NoForm 4
Shinn JohnSVP, General CounselApr 1, 2025Apr 3, 2025F817$52.29$42,72120,978NoForm 4
Lynch DesmondSVP, CFOApr 1, 2025Apr 3, 2025A18,167$0.00$080,745NoForm 4
Lynch DesmondSVP, CFOApr 1, 2025Apr 3, 2025F1,829$52.29$95,63878,916NoForm 4
Stang Eric BApr 1, 2025Apr 3, 2025A3,824$0.00$03,824NoForm 4
Kissner CharlesApr 1, 2025Apr 3, 2025A3,824$0.00$038,322NoForm 4
Higashi EmikoApr 1, 2025Apr 3, 2025A3,824$0.00$064,482NoForm 4
Rao MeeraApr 1, 2025Apr 3, 2025A3,824$0.00$032,914NoForm 4
Sayiner NecipApr 1, 2025Apr 3, 2025A3,824$0.00$045,824NoForm 4
Laub StevenApr 1, 2025Apr 3, 2025A3,824$0.00$014,557NoForm 4
Allen John KChief Accounting OfficerApr 1, 2025Apr 3, 2025A5,168$0.00$017,709NoForm 4
Allen John KChief Accounting OfficerApr 1, 2025Apr 3, 2025F490$52.29$25,62217,219NoForm 4
Seraphin LucPresident and CEOMar 25, 2025Mar 26, 2025S10,000$58.64Sale −$586,400306,931YesForm 4
Shinn JohnSVP, General CounselMar 21, 2025Mar 25, 2025S7,632$55.73Sale −$425,33113,190YesForm 4
Seraphin LucPresident and CEOMar 18, 2025Mar 19, 2025S10,000$53.79Sale −$537,900316,931YesForm 4
Lynch DesmondSVP, CFOMar 14, 2025Mar 17, 2025S3,743$53.27Sale −$199,39062,578YesForm 4
Shinn JohnSVP, General CounselMar 14, 2025Mar 17, 2025S7,633$52.98Sale −$404,39620,822YesForm 4
Fan Xianzhi SeanEVP, COOFeb 19, 2025Feb 19, 2025S52,327$68.02Sale −$3,559,28393,841NoForm 4
Sayiner NecipFeb 19, 2025Feb 19, 2025S4,625$66.74Sale −$308,67342,000NoForm 4
Seraphin LucPresident and CEOFeb 1, 2025Feb 4, 2025A191,548$0.00$0454,800NoForm 4
Seraphin LucPresident and CEOFeb 1, 2025Feb 4, 2025F127,869$60.35$7,716,894326,931NoForm 4
Fan Xianzhi SeanEVP, COOFeb 1, 2025Feb 4, 2025A112,675$0.00$0224,246NoForm 4
Fan Xianzhi SeanEVP, COOFeb 1, 2025Feb 4, 2025F78,078$60.35$4,712,007146,168NoForm 4
Shinn JohnSVP, General CounselFeb 1, 2025Feb 4, 2025A18,777$0.00$039,405NoForm 4
Shinn JohnSVP, General CounselFeb 1, 2025Feb 4, 2025F10,950$60.35$660,83328,455NoForm 4
Lynch DesmondSVP, CFOFeb 1, 2025Feb 4, 2025A39,072$0.00$092,432NoForm 4
Lynch DesmondSVP, CFOFeb 1, 2025Feb 4, 2025F26,111$60.35$1,575,79966,321NoForm 4
Rao MeeraDec 12, 2024Dec 13, 2024S5,408$58.22Sale −$314,85429,090NoForm 4
Shinn JohnSVP, General CounselDec 12, 2024Dec 12, 2024S2,462$58.13Sale −$143,11620,628NoForm 4
Lynch DesmondSVP, CFOSep 3, 2024Sep 4, 2024F2,720$40.58$110,37853,277NoForm 4
Stang Eric BMay 8, 2024May 8, 2024S6,000$55.85Sale −$335,10026,422NoForm 4
Stang Eric BMay 7, 2024May 8, 2024S5,408$56.95Sale −$307,98632,422NoForm 4
Seraphin LucPresident and CEOApr 16, 2024Apr 16, 2024S5,000$58.66Sale −$293,300263,321YesForm 4
Seraphin LucPresident and CEOApr 16, 2024Apr 16, 2024S530$58.66Sale −$31,090262,791YesForm 4
Seraphin LucPresident and CEOApr 9, 2024Apr 10, 2024S5,000$61.35Sale −$306,750278,321YesForm 4
Seraphin LucPresident and CEOApr 9, 2024Apr 10, 2024S10,000$61.35Sale −$613,500268,321YesForm 4
Allen John KChief Accounting OfficerApr 3, 2024Apr 4, 2024F1,132$60.31$68,27111,956NoForm 4
Seraphin LucPresident and CEOApr 2, 2024Apr 2, 2024S5,000$59.93Sale −$299,650293,321YesForm 4
Seraphin LucPresident and CEOApr 2, 2024Apr 2, 2024S10,000$59.94Sale −$599,400283,321YesForm 4
Shinn JohnSVP, General CounselApr 1, 2024Apr 2, 2024A6,427$0.00$023,090NoForm 4
Lynch DesmondSVP, CFOApr 1, 2024Apr 2, 2024A13,659$0.00$055,617NoForm 4
Allen John KChief Accounting OfficerApr 1, 2024Apr 2, 2024A3,882$0.00$013,088NoForm 4
Fan Xianzhi SeanSVP, COOApr 1, 2024Apr 2, 2024A26,112$0.00$0111,571NoForm 4
Sayiner NecipApr 1, 2024Apr 2, 2024A2,972$0.00$046,625NoForm 4
Stang Eric BApr 1, 2024Apr 2, 2024A2,972$0.00$06,625NoForm 4
Rao MeeraApr 1, 2024Apr 2, 2024A2,972$0.00$034,498NoForm 4
Laub StevenApr 1, 2024Apr 2, 2024A2,972$0.00$010,733NoForm 4
Kissner CharlesApr 1, 2024Apr 2, 2024A2,972$0.00$034,498NoForm 4
Higashi EmikoApr 1, 2024Apr 2, 2024A2,972$0.00$060,658NoForm 4
Seraphin LucPresident and CEOApr 1, 2024Apr 2, 2024A38,566$0.00$0298,321YesForm 4
Seraphin LucPresident and CEOMar 26, 2024Mar 27, 2024S5,000$62.69Sale −$313,450269,755YesForm 4
Seraphin LucPresident and CEOMar 26, 2024Mar 27, 2024S10,000$62.69Sale −$626,900259,755YesForm 4
Shinn JohnSVP, General CounselMar 26, 2024Mar 27, 2024S3,947$62.71Sale −$247,51616,663YesForm 4
Seraphin LucPresident and CEOMar 19, 2024Mar 20, 2024S5,000$58.35Sale −$291,750284,755YesForm 4
Seraphin LucPresident and CEOMar 19, 2024Mar 20, 2024S10,000$58.36Sale −$583,600274,755YesForm 4
Shinn JohnSVP, General CounselMar 19, 2024Mar 20, 2024S3,949$58.84Sale −$232,35920,610YesForm 4
Seraphin LucPresident and CEOMar 12, 2024Mar 13, 2024S5,000$62.68Sale −$313,400299,755YesForm 4
Seraphin LucPresident and CEOMar 12, 2024Mar 13, 2024S10,000$62.69Sale −$626,900289,755YesForm 4
Shinn JohnSVP, General CounselMar 12, 2024Mar 13, 2024S3,889$62.68Sale −$243,76324,559YesForm 4
Lynch DesmondSVP, CFOMar 11, 2024Mar 12, 2024S191$62.25Sale −$11,89049,604YesForm 4
Lynch DesmondSVP, CFOMar 11, 2024Mar 12, 2024S7,646$62.18Sale −$475,42841,958YesForm 4
Shinn JohnSVP, General CounselMar 7, 2024Mar 8, 2024S3,928$64.93Sale −$255,04528,448YesForm 4
Seraphin LucPresident and CEOMar 5, 2024Mar 6, 2024S5,000$62.17Sale −$310,850314,755YesForm 4
Seraphin LucPresident and CEOMar 5, 2024Mar 6, 2024S10,000$62.17Sale −$621,700304,755YesForm 4
Lynch DesmondSVP, CFOMar 4, 2024Mar 5, 2024F2,406$63.09$151,79549,795NoForm 4
Fan Xianzhi SeanSVP, COOMar 4, 2024Mar 4, 2024S15,770$64.91Sale −$1,023,63185,459YesForm 4
Fan Xianzhi SeanSVP, COOMar 1, 2024Mar 4, 2024S20,000$60.99Sale −$1,219,800101,229YesForm 4
Fan Xianzhi SeanSVP, COOFeb 20, 2024Feb 21, 2024S2,004$55.00Sale −$110,220121,229YesForm 4
Fan Xianzhi SeanSVP, COOFeb 12, 2024Feb 13, 2024S20,000$58.53Sale −$1,170,600123,233YesForm 4
Shinn JohnSVP, General CounselFeb 5, 2024Feb 6, 2024F1,268$68.37$86,69332,376NoForm 4
Fan Xianzhi SeanSVP, COOFeb 5, 2024Feb 6, 2024F6,168$68.37$421,706163,233NoForm 4
Fan Xianzhi SeanSVP, COOFeb 5, 2024Feb 6, 2024S20,000$68.73Sale −$1,374,600143,233NoForm 4
Seraphin LucPresident and CEOFeb 5, 2024Feb 6, 2024F13,363$68.37$913,628319,755NoForm 4
Shinn JohnSVP, General CounselFeb 1, 2024Feb 2, 2024A22,664$0.00$046,803NoForm 4
Shinn JohnSVP, General CounselFeb 1, 2024Feb 2, 2024F13,159$68.15$896,78633,644NoForm 4
Lynch DesmondSVP, CFOFeb 1, 2024Feb 2, 2024F5,159$68.15$351,58652,201NoForm 4
Seraphin LucPresident and CEOFeb 1, 2024Feb 2, 2024A221,310$0.00$0476,642NoForm 4
Seraphin LucPresident and CEOFeb 1, 2024Feb 2, 2024F143,524$68.15$9,781,161333,118NoForm 4
Fan Xianzhi SeanSVP, COOFeb 1, 2024Feb 2, 2024A76,844$0.00$0228,163NoForm 4
Fan Xianzhi SeanSVP, COOFeb 1, 2024Feb 2, 2024F58,762$68.15$4,004,630169,401NoForm 4
Fan Xianzhi SeanCOODec 11, 2023Dec 12, 2023S16,904$66.35Sale −$1,121,580151,319YesForm 4
Lynch DesmondSVP, CFODec 8, 2023Dec 11, 2023S6,838$64.78Sale −$442,96657,360YesForm 4
Lynch DesmondSVP, CFODec 7, 2023Dec 11, 2023S1,527$64.64Sale −$98,70564,198YesForm 4
Laub StevenNov 15, 2023Nov 16, 2023S2,000$66.91Sale −$133,8207,761NoForm 4
Stang Eric BNov 15, 2023Nov 16, 2023S8,685$67.16Sale −$583,2859,957NoForm 4
Higashi EmikoNov 8, 2023Nov 9, 2023S8,000$60.00Sale −$480,00057,686NoForm 4
Sayiner NecipNov 8, 2023Nov 9, 2023M15,000$13.94$209,10043,653NoForm 4
Sayiner NecipNov 8, 2023Nov 9, 2023M · derivative15,000$13.94$209,100not reportedNoForm 4
Sayiner NecipNov 6, 2023Nov 7, 2023M10,000$13.94$139,40038,653NoForm 4
Sayiner NecipNov 6, 2023Nov 7, 2023S10,000$57.43Sale −$574,30028,653NoForm 4
Sayiner NecipNov 6, 2023Nov 7, 2023M · derivative10,000$13.94$139,40015,000NoForm 4