Rambus Inc.
DE ˙ DB ˙ US7509171069
148,20 € ↑5,25 (3,67%)
2026-06-05
DEL PRIS
SecurityDE:RMB / Rambus Inc.
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership922,105 shares
Latest Disclosed Value $ 79,328,623
Goldman Sachs Group Inc ownership in RMB / Rambus Inc.

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 922,105 shares of Rambus Inc. (DE:RMB) valued at $65,451,013 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,194,391 shares of Rambus Inc.. This represents a change in shares of -22.80% during the quarter. The current value of the position is $136,655,961 USD.

Goldman Sachs Group Inc has a history of taking positions in derivatives of the underlying security (RMB) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:RMB / Rambus Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F RAMBUS INC DEL CMN 750917106 922,105 -272,286 -22.80 79,329 -27.72 0.0021
2026-02-10 2025-12-31 13F RAMBUS INC DEL CMN 750917106 1,194,391 7,258 0.61 109,753 -11.27 0.0135
2025-11-14 2025-09-30 13F RAMBUS INC DEL CMN 750917106 1,187,133 527,524 79.98 123,699 192.93 0.0151
2025-08-14 2025-06-30 13F RAMBUS INC DEL CMN 750917106 659,609 -13,369 -1.99 42,228 21.20 0.0057
2025-06-27 2025-03-31 13F/A-2 RAMBUS INC DEL CMN 750917106 672,978 -375,862 -35.84 34,843 -37.15 0.0056
2025-05-16 2025-03-31 13F/A-1 RAMBUS INC DEL CMN 750917106 672,978 -375,862 34,843 0.0056
2025-05-09 2025-03-31 13F RAMBUS INC DEL CMN 750917106 672,978 -375,862 34,843 0.0011
2025-02-11 2024-12-31 13F RAMBUS INC DEL CMN 750917106 1,048,840 227,985 27.77 55,442 59.98 0.0087
2024-11-14 2024-09-30 13F RAMBUS INC DEL CMN 750917106 820,855 -98,532 -10.72 34,656 -35.85 0.0056
2024-08-13 2024-06-30 13F RAMBUS INC DEL CMN 750917106 919,387 -248,772 -21.30 54,023 -25.18 0.0091
2024-05-15 2024-03-31 13F RAMBUS INC DEL CMN 750917106 1,168,159 309,715 36.08 72,204 23.24 0.0128
2024-05-14 2023-12-31 13F/A-2 RAMBUS INC DEL CMN 750917106 858,444 133,304 18.38 58,589 44.82 0.0108
2024-03-01 2023-12-31 13F/A-1 RAMBUS INC DEL CMN 750917106 858,444 133,304 58,589 0.0105
2024-02-13 2023-12-31 13F RAMBUS INC DEL CMN 750917106 858,444 133,304 58,589 0.0019
2024-05-15 2023-09-30 13F/A-1 RAMBUS INC DEL CMN 750917106 725,140 424,925 141.54 40,456 110.00 0.0086
2023-11-14 2023-09-30 13F RAMBUS INC DEL CMN 750917106 725,140 424,925 40,456 0.0081
2024-05-14 2023-06-30 13F/A-1 RAMBUS INC DEL CMN 750917106 300,215 -75,293 -20.05 19,265 0.08 0.0041
2023-08-15 2023-06-30 13F RAMBUS INC DEL CMN 750917106 300,215 -75,293 19,265 0.0039
2024-05-14 2023-03-31 13F/A-1 RAMBUS INC DEL CMN 750917106 375,508 16,037 4.46 19,249 49.49 0.0044
2023-05-11 2023-03-31 13F RAMBUS INC DEL CMN 750917106 375,508 16,037 19,249 0.0041
2024-05-14 2022-12-31 13F/A-1 RAMBUS INC DEL CMN 750917106 359,471 -221,965 -38.18 12,876 91,871.43 0.0032
2023-02-13 2022-12-31 13F RAMBUS INC DEL CMN 750917106 359,471 -221,965 12,876 0.0029
2024-05-14 2022-09-30 13F/A-1 RAMBUS INC DEL CMN 750917106 581,436 129,300 28.60 15 55.56 0.0037
2022-11-14 2022-09-30 13F RAMBUS INC DEL CMN 750917106 581,436 129,300 14,780 0.0034
2024-05-14 2022-06-30 13F/A-2 RAMBUS INC DEL CMN 750917106 452,136 48,980 12.15 10 -99.93 0.0024
2022-08-18 2022-06-30 13F/A-1 RAMBUS INC DEL CMN 750917106 452,136 48,980 9,716 0.0022
2022-08-15 2022-06-30 13F RAMBUS INC DEL CMN 750917106 452,136 48,980 9,716 0.0007
2022-05-16 2022-03-31 13F RAMBUS INC DEL CMN 750917106 403,156 -493,034 -55.01 12,857 -51.19 0.0027
2022-02-17 2021-12-31 13F/A-1 RAMBUS INC DEL CMN 750917106 896,190 609,340 212.42 26,340 313.63 0.0052
2022-02-14 2021-12-31 13F RAMBUS INC DEL CMN 750917106 896,190 609,340 26,340 0.0015
2022-01-20 2021-09-30 13F/A-1 RAMBUS INC DEL CMN 750917106 286,850 -38,093 -11.72 6,368 -17.35 0.0014
2021-11-10 2021-09-30 13F RAMBUS INC DEL CMN 750917106 286,850 -38,093 6,368 0.0004
2021-08-13 2021-06-30 13F RAMBUS INC DEL CMN 750917106 324,943 -296,663 -47.73 7,705 -36.24 0.0017
2021-05-17 2021-03-31 13F RAMBUS INC DEL CMN 750917106 621,606 253,287 68.77 12,084 87.90 0.0030
2021-02-12 2020-12-31 13F RAMBUS INC DEL CMN 750917106 368,319 -384,611 -51.08 6,431 -37.61 0.0017
2020-11-13 2020-09-30 13F RAMBUS INC DEL CMN 750917106 752,930 -109,208 -12.67 10,308 -21.34 0.0029
2020-08-12 2020-06-30 13F RAMBUS INC DEL CMN 750917106 862,138 -443,067 -33.95 13,105 -9.55 0.0040
2020-05-15 2020-03-31 13F RAMBUS INC DEL CMN 750917106 1,305,205 -496,259 -27.55 14,488 -41.62 0.0051
2020-02-14 2019-12-31 13F RAMBUS INC DEL CMN 750917106 1,801,464 203,011 12.70 24,815 18.28 0.0063
2019-11-14 2019-09-30 13F RAMBUS INC DEL CMN 750917106 1,598,453 496,601 45.07 20,980 58.15 0.0061
2019-08-14 2019-06-30 13F RAMBUS INC DEL CMN 750917106 1,101,852 172,926 18.62 13,266 36.66 0.0038
2019-05-15 2019-03-31 13F RAMBUS INC DEL CMN 750917106 928,926 465,930 100.63 9,707 173.36 0.0029
2019-02-14 2018-12-31 13F RAMBUS INC DEL CMN 750917106 462,996 122,816 36.10 3,551 -4.31 0.0011
2018-11-14 2018-09-30 13F RAMBUS INC DEL CMN 750917106 340,180 -398,871 -53.97 3,711 -59.95 0.0010
2018-08-14 2018-06-30 13F RAMBUS INC DEL CMN 750917106 739,051 74,746 11.25 9,267 3.87 0.0025
2018-05-15 2018-03-31 13F RAMBUS INC DEL CMN 750917106 664,305 186,396 39.00 8,922 31.28 0.0023
2018-02-14 2017-12-31 13F RAMBUS INC DEL CMN 750917106 477,909 47,305 10.99 6,796 18.23 0.0016
2017-11-14 2017-09-30 13F RAMBUS INC DEL CMN 750917106 430,604 287,192 200.26 5,748 250.70 0.0014
2017-08-14 2017-06-30 13F RAMBUS INC DEL CMN 750917106 143,412 -86,794 -37.70 1,639 -45.82 0.0004
2017-05-18 2017-03-31 13F/A-1 RAMBUS INC DEL CMN 750917106 230,206 -110,437 -32.42 3,025 -35.51 0.0008
2017-05-15 2017-03-31 13F RAMBUS INC DEL CMN 750917106 230,206 3,025
2017-02-14 2016-12-31 13F RAMBUS INC DEL CMN 750917106 340,643 88,363 35.03 4,691 48.73 0.0013
2016-11-14 2016-09-30 13F RAMBUS INC DEL CMN 750917106 252,280 169,836 206.00 3,154 216.67 0.0010
2016-08-15 2016-06-30 13F RAMBUS INC DEL CMN 750917106 82,444 -92,050 -52.75 996 -58.50 0.0003
2016-05-13 2016-03-31 13F RAMBUS INC DEL CMN 750917106 174,494 121,133 227.01 2,400 287.72 0.0008
2016-02-16 2015-12-31 13F RAMBUS INC DEL CMN 750917106 53,361 -748,289 -93.34 619 -93.46 0.0002
2015-11-13 2015-09-30 13F RAMBUS INC DEL CMN 750917106 801,650 742,684 1,259.51 9,460 1,007.73 0.0032
2015-08-14 2015-06-30 13F RAMBUS INC DEL CMN 750917106 58,966 -4,890 -7.66 854 6.35 0.0003
2015-05-15 2015-03-31 13F RAMBUS INC DEL CMN 750917106 63,856 -40,843 -39.01 803 -30.84 0.0003
2015-02-13 2014-12-31 13F RAMBUS INC DEL CMN 750917106 104,699 -267,699 -71.89 1,161 -75.02 0.0004
2014-11-14 2014-09-30 13F RAMBUS INC DEL CMN 750917106 372,398 -35,359 -8.67 4,648 -20.29 0.0015
2014-08-14 2014-06-30 13F RAMBUS INC DEL CMN 750917106 407,757 -84,608 -17.18 5,831 10.16 0.0018
2014-05-15 2014-03-31 13F RAMBUS INC DEL CMN 750917106 492,365 -23,851 -4.62 5,293 8.29 0.0017
2014-02-14 2013-12-31 13F RAMBUS INC DEL CMN 750917106 516,216 -193,856 -27.30 4,888 -26.77 0.0016
2013-11-14 2013-09-30 13F RAMBUS INC DEL CMN 750917106 710,072 183,421 34.83 6,675 47.55 0.0025
2013-08-14 2013-06-30 13F RAMBUS INC DEL CMN 750917106 526,651 458,917 677.53 4,524 1,270.91 0.0017
2013-06-14 2012-12-31 13F/A-1 RAMBUS INC DEL CMN 750917106 67,734 -24,910 -26.89 330 -35.67 0.0001
2013-06-14 2012-09-30 13F/A-2 RAMBUS INC DEL CMN 750917106 92,644 -132,126 -58.78 513 -60.23 0.0002
2013-06-14 2012-06-30 13F/A-2 RAMBUS INC DEL CMN 750917106 224,770 51,039 29.38 1,290 15.18 0.0006
2013-06-14 2012-03-31 13F/A-1 RAMBUS INC DEL CMN 750917106 173,731 173,731 1,120 0.0005
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2018-05-15 2018-03-31 13F RAMBUS INC DEL CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F RAMBUS INC DEL CMN Call 36,600 -71.67 520 -69.86 n/a n/a n/a
2017-11-14 2017-09-30 13F RAMBUS INC DEL CMN Call 129,200 2.70 1,725 19.96 n/a n/a n/a
2017-08-14 2017-06-30 13F RAMBUS INC DEL CMN Call 125,800 88.89 1,438 64.34 n/a n/a n/a
2017-05-18 2017-03-31 13F/A RAMBUS INC DEL CMN Call 66,600 -28.31 875 -31.59 n/a n/a n/a
2017-05-15 2017-03-31 13F RAMBUS INC DEL CMN Call 66,600 875 n/a n/a n/a
2017-02-14 2016-12-31 13F RAMBUS INC DEL CMN Call 92,900 -45.19 1,279 -39.64 n/a n/a n/a
2016-11-14 2016-09-30 13F RAMBUS INC DEL CMN Call 169,500 187.78 2,119 197.61 n/a n/a n/a
2016-08-15 2016-06-30 13F RAMBUS INC DEL CMN Call 58,900 -41.86 712 -48.89 n/a n/a n/a
2016-05-13 2016-03-31 13F RAMBUS INC DEL CMN Call 101,300 28.23 1,393 52.07 n/a n/a n/a
2016-02-16 2015-12-31 13F RAMBUS INC DEL CMN Call 79,000 -27.79 916 -29.05 n/a n/a n/a
2015-11-13 2015-09-30 13F RAMBUS INC DEL CMN Call 109,400 -7.45 1,291 -24.64 n/a n/a n/a
2015-08-14 2015-06-30 13F RAMBUS INC DEL CMN Call 118,200 20.37 1,713 38.70 n/a n/a n/a
2015-05-15 2015-03-31 13F RAMBUS INC DEL CMN Call 98,200 10.71 1,235 25.51 n/a n/a n/a
2015-02-13 2014-12-31 13F RAMBUS INC DEL CMN Call 88,700 -59.94 984 -64.39 n/a n/a n/a
2014-11-14 2014-09-30 13F RAMBUS INC DEL CMN Call 221,400 -18.69 2,763 -29.04 n/a n/a n/a
2014-08-14 2014-06-30 13F RAMBUS INC DEL CMN Call 272,300 48.23 3,894 97.16 n/a n/a n/a
2014-05-15 2014-03-31 13F RAMBUS INC DEL CMN Call 183,700 -36.17 1,975 -27.52 n/a n/a n/a
2014-02-14 2013-12-31 13F RAMBUS INC DEL CMN Call 287,800 -23.38 2,725 -22.83 n/a n/a n/a
2013-11-14 2013-09-30 13F RAMBUS INC DEL CMN Call 375,600 -8.70 3,531 -0.08 n/a n/a n/a
2013-08-14 2013-06-30 13F RAMBUS INC DEL CMN Call 411,400 214.77 3,534 454.79 n/a n/a n/a
2013-06-14 2012-12-31 13F/A RAMBUS INC DEL CMN Call 130,700 -13.96 637 -24.35 n/a n/a n/a
2013-06-14 2012-09-30 13F/A RAMBUS INC DEL CMN Call 151,900 124.04 842 116.45 n/a n/a n/a
2013-06-14 2012-06-30 13F/A RAMBUS INC DEL CMN Call 67,800 166.93 389 137.20 n/a n/a n/a
2013-06-14 2012-03-31 13F/A RAMBUS INC DEL CMN Call 25,400 164 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2019-02-14 2018-12-31 13F RAMBUS INC DEL CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F RAMBUS INC DEL CMN Put 200 0.00 2 -33.33 n/a n/a n/a
2018-08-14 2018-06-30 13F RAMBUS INC DEL CMN Put 200 0.00 3 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F RAMBUS INC DEL CMN Put 200 -98.33 3 -98.25 n/a n/a n/a
2018-02-14 2017-12-31 13F RAMBUS INC DEL CMN Put 12,000 -45.70 171 -42.03 n/a n/a n/a
2017-11-14 2017-09-30 13F RAMBUS INC DEL CMN Put 22,100 904.55 295 1,080.00 n/a n/a n/a
2017-08-14 2017-06-30 13F RAMBUS INC DEL CMN Put 2,200 -92.41 25 -93.44 n/a n/a n/a
2017-05-18 2017-03-31 13F/A RAMBUS INC DEL CMN Put 29,000 30.04 381 24.10 n/a n/a n/a
2017-05-15 2017-03-31 13F RAMBUS INC DEL CMN Put 29,000 381 n/a n/a n/a
2017-02-14 2016-12-31 13F RAMBUS INC DEL CMN Put 22,300 223.19 307 256.98 n/a n/a n/a
2016-11-14 2016-09-30 13F RAMBUS INC DEL CMN Put 6,900 305.88 86 309.52 n/a n/a n/a
2016-08-15 2016-06-30 13F RAMBUS INC DEL CMN Put 1,700 -95.07 21 -95.57 n/a n/a n/a
2016-05-13 2016-03-31 13F RAMBUS INC DEL CMN Put 34,500 -19.58 474 -4.63 n/a n/a n/a
2016-02-16 2015-12-31 13F RAMBUS INC DEL CMN Put 42,900 -34.20 497 -35.37 n/a n/a n/a
2015-11-13 2015-09-30 13F RAMBUS INC DEL CMN Put 65,200 124.83 769 83.10 n/a n/a n/a
2015-08-14 2015-06-30 13F RAMBUS INC DEL CMN Put 29,000 -6.75 420 7.42 n/a n/a n/a
2015-05-15 2015-03-31 13F RAMBUS INC DEL CMN Put 31,100 -58.86 391 -53.34 n/a n/a n/a
2015-02-13 2014-12-31 13F RAMBUS INC DEL CMN Put 75,600 -54.35 838 -59.46 n/a n/a n/a
2014-11-14 2014-09-30 13F RAMBUS INC DEL CMN Put 165,600 -22.83 2,067 -32.65 n/a n/a n/a
2014-08-14 2014-06-30 13F RAMBUS INC DEL CMN Put 214,600 88.08 3,069 150.12 n/a n/a n/a
2014-05-15 2014-03-31 13F RAMBUS INC DEL CMN Put 114,100 -34.65 1,227 -25.77 n/a n/a n/a
2014-02-14 2013-12-31 13F RAMBUS INC DEL CMN Put 174,600 -21.24 1,653 -20.68 n/a n/a n/a
2013-11-14 2013-09-30 13F RAMBUS INC DEL CMN Put 221,700 74.98 2,084 91.54 n/a n/a n/a
2013-08-14 2013-06-30 13F RAMBUS INC DEL CMN Put 126,700 136.38 1,088 316.86 n/a n/a n/a
2013-06-14 2012-12-31 13F/A RAMBUS INC DEL CMN Put 53,600 -23.10 261 -32.38 n/a n/a n/a
2013-06-14 2012-09-30 13F/A RAMBUS INC DEL CMN Put 69,700 -9.95 386 -13.06 n/a n/a n/a
2013-06-14 2012-06-30 13F/A RAMBUS INC DEL CMN Put 77,400 165.07 444 136.17 n/a n/a n/a
2013-06-14 2012-03-31 13F/A RAMBUS INC DEL CMN Put 29,200 188 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.