Equibles

RMBS

Rambus Inc

Company with tickers: RMBS

CIK
917273
CUSIP
750917106
Shares Outstanding
108,136,967
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 544
Total Value: $7,576,357,958
Total Shares: 88,066,469
Showing 1–100 of 557 holdings by value · page 1 of 6

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 544 13F filers · Δ vs Dec 31, 2025
Top Holder
18.5%
−0.4 pts
Top 5
38.5%
+0.2 pts
Top 10
51.1%
+2.1 pts
HHI
520
Broadly held +3

Quarterly Activity

vs Dec 31, 2025
New
84
Increased
185
Decreased
200
Sold Out
87
Unchanged
75
Holder count: -3
Institutional value: -4.0%
Shares held: +2.5%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega Invesco Ltd. +2,350,395 6,499,048
Mega FMR LLC +1,731,420 3,318,449
Large BESSEMER GROUP INC +946,177 1,039,905
Large EdgePoint Investment Group Inc. +541,056 1,947,742
Mega AQR CAPITAL MANAGEMENT LLC +539,330 1,250,456

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega PRICE T ROWE ASSOCIATES INC /MD/ −2,008,881 3,376,689
Mega ALLIANCEBERNSTEIN L.P. −1,633,119 267,189
Mid NORTHERN TRUST CORP −1,314,737 814
Large Driehaus Capital Management LLC −780,211 173,953
Large Allspring Global Investments Holdings, LLC −455,695 66,531

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega T. Rowe Price Investment Management, Inc. 2,391,020 $205,699,450
Large Swedbank AB 1,563,000 $134,464,890
Mid PointState Capital LP 701,307 $60,333,441
Mega Clearbridge Investments, LLC 583,270 $50,178,718
Mid Champlain Investment Partners, LLC 357,223 $30,731,894

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega NORGES BANK 1,701,551 $156,355,521
Mega VANGUARD GROUP INC 738,382 $67,849,921
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 316,397 $29,073,720
Large Public Sector Pension Investment Board 305,209 $28,045,655
Large GLENMEDE TRUST CO NA 172,534 $15,854,148
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $1,402,745,465 18.51% 16,305,306 View
Mega Invesco Ltd. $559,113,092 7.38% 6,499,048 View
Mega STATE STREET CORP $376,262,270 4.97% 4,373,617 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $290,496,553 3.83% 3,376,689 View
Mega FMR LLC $285,486,165 3.77% 3,318,449 View
Mega GEODE CAPITAL MANAGEMENT, LLC $268,800,304 3.55% 3,124,495 View
Mega T. Rowe Price Investment Management, Inc. $205,699,450 2.72% 2,391,020 View
Large EdgePoint Investment Group Inc. $167,564,244 2.21% 1,947,742 View
Mega JPMORGAN CHASE & CO $157,994,092 2.09% 1,836,500 View
Mega DIMENSIONAL FUND ADVISORS LP $154,449,227 2.04% 1,795,295 View
Large Swedbank AB $134,464,890 1.77% 1,563,000 View
Mega BANK OF AMERICA CORP /DE/ $117,135,866 1.55% 1,361,570 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $114,110,364 1.51% 1,326,402 View
Mega NEUBERGER BERMAN GROUP LLC $112,025,598 1.48% 1,302,169 View
Large CONGRESS ASSET MANAGEMENT CO $109,772,387 1.45% 1,275,978 View
Mega AQR CAPITAL MANAGEMENT LLC $107,576,725 1.42% 1,250,456 View
Mega BARCLAYS PLC $94,263,155 1.24% 1,095,701 View
Large BESSEMER GROUP INC $89,463,020 1.18% 1,039,905 View
Mega CITIGROUP INC $86,679,353 1.14% 1,007,548 View
Mega AMERIPRISE FINANCIAL INC $83,897,227 1.11% 975,209 View
Mega UBS Group AG $82,277,971 1.09% 956,387 View
Mega GOLDMAN SACHS GROUP INC $79,328,691 1.05% 922,105 View
Mega Nuveen, LLC $76,767,751 1.01% 892,337 View
Mega WELLINGTON MANAGEMENT GROUP LLP $73,693,124 0.97% 856,598 View
Mega RAYMOND JAMES FINANCIAL INC $68,047,921 0.90% 790,979 View
Mega Bank of New York Mellon Corp $67,092,897 0.89% 779,878 View
Large VOYA INVESTMENT MANAGEMENT LLC $65,880,482 0.87% 765,785 View
Large Rafferty Asset Management, LLC $64,136,999 0.85% 745,519 View
Mega Fisher Asset Management, LLC $63,520,766 0.84% 738,356 View
Mid Hood River Capital Management LLC $62,586,308 0.83% 727,494 View
Mid PointState Capital LP $60,333,441 0.80% 701,307 View
Large LOOMIS SAYLES & CO L P $56,765,604 0.75% 659,835 View
Mega Clearbridge Investments, LLC $50,178,718 0.66% 583,270 View
Mid OBERWEIS ASSET MANAGEMENT INC/ $45,278,965 0.60% 526,316 View
Mid EMERALD ADVISERS, LLC $42,433,093 0.56% 493,236 View
Large Caisse de depot et placement du Quebec $38,592,627 0.51% 448,595 View
Large PANAGORA ASSET MANAGEMENT INC $37,546,158 0.50% 436,431 View
Mid SCHWARTZ INVESTMENT COUNSEL INC $36,161,592 0.48% 420,337 View
Mid Stephens Investment Management Group LLC $35,081,571 0.46% 407,783 View
Large LORD, ABBETT & CO. LLC $33,303,847 0.44% 387,119 View
Mega PRINCIPAL FINANCIAL GROUP INC $32,135,301 0.42% 373,536 View
Large WESTWOOD HOLDINGS GROUP INC $31,757,974 0.42% 369,150 View
Mega JANUS HENDERSON GROUP PLC $30,875,478 0.41% 358,892 View
Mid Champlain Investment Partners, LLC $30,731,894 0.41% 357,223 View
Large SEI INVESTMENTS CO $29,244,263 0.39% 339,931 View
Small Shannon River Fund Management LLC $28,718,276 0.38% 333,817 View
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $28,126,476 0.37% 326,938 View
Mega FRANKLIN RESOURCES INC $27,818,999 0.37% 323,364 View
Mega RHUMBLINE ADVISERS $27,493,467 0.36% 319,580 View
Mid TimesSquare Capital Management, LLC $26,872,330 0.35% 312,360 View
Mid EMERALD MUTUAL FUND ADVISERS TRUST $26,432,545 0.35% 307,248 View
Mega FIRST TRUST ADVISORS LP $26,432,201 0.35% 307,244 View
Mid Granahan Investment Management, LLC $24,109,563 0.32% 280,246 View
Mega ALLIANCEBERNSTEIN L.P. $22,986,269 0.30% 267,189 View
Mega BNP PARIBAS ARBITRAGE, SA $22,746,159 0.30% 264,398 View
Mid ArrowMark Colorado Holdings LLC $22,515,427 0.30% 261,716 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $21,593,530 0.29% 251,000 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $20,699,330 0.27% 240,606 View
Mega California Public Employees Retirement System $19,552,124 0.26% 227,271 View
Mid Ranger Investment Management, L.P. $19,302,120 0.25% 224,365 View
Large FEDERATED HERMES, INC. $18,530,861 0.24% 215,400 View
Mega Swiss National Bank $18,324,390 0.24% 213,000 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $17,158,511 0.23% 199,448 View
Mega VICTORY CAPITAL MANAGEMENT INC $15,743,403 0.21% 182,999 View
Large HighTower Advisors, LLC $15,622,703 0.21% 181,596 View
Large Driehaus Capital Management LLC $14,965,176 0.20% 173,953 View
Large WCM INVESTMENT MANAGEMENT, LLC $14,196,498 0.19% 165,018 View
Large Thrivent Financial for Lutherans $13,941,763 0.18% 162,057 View
Mega Legal & General Group Plc $13,653,304 0.18% 158,704 View
Mega MORGAN STANLEY $13,638,679 0.18% 158,534 View
Mid SEGALL BRYANT & HAMILL, LLC $13,545,423 0.18% 157,450 View
Large DekaBank Deutsche Girozentrale $13,263,503 0.18% 154,173 View
Mid STEADFAST CAPITAL MANAGEMENT LP $13,184,097 0.17% 153,250 View
Large ASSETMARK, INC $12,694,070 0.17% 147,554 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $12,534,571 0.17% 145,700 View
Mega MILLENNIUM MANAGEMENT LLC $12,157,243 0.16% 141,314 View
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $12,137,541 0.16% 141,085 View
Mid AXIOM INVESTORS LLC /DE $11,977,870 0.16% 139,229 View
Large Man Group plc $11,969,525 0.16% 139,132 View
Large Mirae Asset Global Investments Co., Ltd. $11,551,506 0.15% 134,273 View
Mid MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC $11,408,524 0.15% 132,611 View
Large Retirement Systems of Alabama $11,353,551 0.15% 131,972 View
Large Russell Investments Group, Ltd. $11,174,607 0.15% 129,892 View
Large Tidal Investments LLC $10,779,988 0.14% 125,305 View
Mega WELLS FARGO & COMPANY/MN $10,744,199 0.14% 124,889 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $10,684,495 0.14% 124,195 View
Mega TD Asset Management Inc $10,347,860 0.14% 120,282 View
Small Tairen Capital Ltd $10,323,600 0.14% 120,000 View
Large Handelsbanken Fonder AB $10,134,075 0.13% 117,797 View
Mid INTECH INVESTMENT MANAGEMENT LLC $9,838,993 0.13% 114,367 View
Large Janney Montgomery Scott LLC $9,515,520 0.13% 110,607 View
Mega JANE STREET GROUP, LLC $9,463,300 0.12% 110,000 View
Large MetLife Investment Management, LLC $9,448,932 0.12% 109,833 View
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $9,342,340 0.12% 108,594 View
Mega DEUTSCHE BANK AG\ $9,317,734 0.12% 108,308 View
Mega NORDEA INVESTMENT MANAGEMENT AB $9,295,970 0.12% 108,055 View
Mid RENAISSANCE GROUP LLC $9,101,543 0.12% 105,795 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE $8,809,730 0.12% 102,403 View
Large Creative Planning $8,802,589 0.12% 102,320 View
Mid DF DENT & CO INC $8,763,445 0.12% 101,865 View
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