Panagora Asset Management Inc reports 0.40% increase in ownership of RMB / Rambus Inc.

Rambus Inc.

DE ˙ DB ˙ US7509171069

148,20 € ↑5,25 (3,67%)

2026-06-05
DEL PRIS

Security	DE:RMB / Rambus Inc.
Institution	Panagora Asset Management Inc
Latest Disclosed Ownership	436,431 shares
Latest Disclosed Value	$ 37,546,159

On May 14, 2026 - Panagora Asset Management Inc filed a 13F-HR form disclosing ownership of 436,431 shares of Rambus Inc. (DE:RMB) valued at $30,977,872 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 434,703 shares of Rambus Inc.. This represents a change in shares of 0.40% during the quarter. The current value of the position is $64,679,074 USD.

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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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-14	2026-03-31	13F	RAMBUS INC DEL	COM	750917106	436,431	1,728	0.40	37,546	-6.00	0.1406
2026-02-13	2025-12-31	13F	RAMBUS INC DEL	COM	750917106	434,703	-3,414	-0.78	39,945	-12.50	0.1416
2025-11-13	2025-09-30	13F	RAMBUS INC DEL	COM	750917106	438,117	-39,242	-8.22	45,652	49.38	0.1839
2025-08-13	2025-06-30	13F	RAMBUS INC DEL	COM	750917106	477,359	16,921	3.67	30,561	28.19	0.1377
2025-05-15	2025-03-31	13F	RAMBUS INC DEL	COM	750917106	460,438	22,759	5.20	23,839	3.04	0.1191
2025-02-13	2024-12-31	13F	RAMBUS INC DEL	COM	750917106	437,679	-1,608	-0.37	23,136	24.74	0.1069
2024-11-13	2024-09-30	13F	RAMBUS INC DEL	COM	750917106	439,287	9,995	2.33	18,547	-26.48	0.0886
2024-07-29	2024-06-30	13F	RAMBUS INC DEL	COM	750917106	429,292	41,614	10.73	25,225	5.27	0.1268
2024-05-07	2024-03-31	13F	RAMBUS INC DEL	COM	750917106	387,678	-11,729	-2.94	23,962	-12.10	0.1249
2024-02-08	2023-12-31	13F	RAMBUS INC DEL	COM	750917106	399,407	-8,861	-2.17	27,260	19.68	0.1525
2023-10-31	2023-09-30	13F	RAMBUS INC DEL	COM	750917106	408,268	-889	-0.22	22,777	-13.25	0.1415
2023-08-11	2023-06-30	13F	RAMBUS INC DEL	COM	750917106	409,157	-18,421	-4.31	26,256	19.79	0.1547
2023-05-12	2023-03-31	13F	RAMBUS INC DEL	COM	750917106	427,578	11,250	2.70	21,918	46.98	0.1385
2023-02-13	2022-12-31	13F	RAMBUS INC DEL	COM	750917106	416,328	49,190	13.40	14,913	59.78	0.0978
2022-11-14	2022-09-30	13F	RAMBUS INC DEL	COM	750917106	367,138	126,319	52.45	9,333	80.35	0.0647
2022-08-15	2022-06-30	13F	RAMBUS INC DEL	COM	750917106	240,819	240,819		5,175		0.0339
2021-11-10	2021-09-30	13F	RAMBUS INC DEL	COM	750917106	0	-5,991	-100.00	0	-100.00
2021-08-11	2021-06-30	13F	RAMBUS INC DEL	COM	750917106	5,991	-10,673	-64.05	142	-56.17	0.0008
2021-05-12	2021-03-31	13F	RAMBUS	COMMON	750917106	16,664	-14,977	-47.33	324	-41.30	0.0018
2021-02-10	2020-12-31	13F	RAMBUS	COMMON	750917106	31,641	-77,036	-70.89	552	-62.90	0.0033
2020-11-13	2020-09-30	13F	RAMBUS	COMMON	750917106	108,677	73,626	210.05	1,488	179.17	0.0093
2020-08-12	2020-06-30	13F	RAMBUS	COMMON	750917106	35,051	14,992	74.74	533	140.09	0.0034
2020-05-14	2020-03-31	13F	RAMBUS	COMMON	750917106	20,059	-327,512	-94.23	222	-95.36	0.0016
2020-02-12	2019-12-31	13F	RAMBUS	COMMON	750917106	347,571	-2,615	-0.75	4,788	4.18	0.0217
2019-11-12	2019-09-30	13F	RAMBUS	COMMON	750917106	350,186	-66,211	-15.90	4,596	-8.32	0.0212
2019-08-09	2019-06-30	13F	RAMBUS	COMMON	750917106	416,397	-14,562	-3.38	5,013	11.33	0.0224
2019-05-15	2019-03-31	13F	RAMBUS	COMMON	750917106	430,959	265,089	159.82	4,503	254.01	0.0200
2019-02-14	2018-12-31	13F	RAMBUS	COMMON	750917106	165,870	-38,619	-18.89	1,272	-42.99	0.0059
2018-11-13	2018-09-30	13F	RAMBUS	COMMON	750917106	204,489	81,631	66.44	2,231	44.78	0.0084
2018-08-14	2018-06-30	13F	RAMBUS	COMMON	750917106	122,858	-190,831	-60.83	1,541	-63.42	0.0061
2018-05-15	2018-03-31	13F	RAMBUS	COMMON	750917106	313,689	-352,455	-52.91	4,213	-55.52	0.0166
2018-02-14	2017-12-31	13F	RAMBUS	COMMON	750917106	666,144	37,734	6.00	9,472	12.91	0.0355
2017-11-14	2017-09-30	13F	RAMBUS	COMMON	750917106	628,410	-280,150	-30.83	8,389	-19.22	0.0332
2017-08-14	2017-06-30	13F	RAMBUS	COMMON	750917106	908,560	234,536	34.80	10,385	17.25	0.0418
2017-05-15	2017-03-31	13F	RAMBUS	COMMON	750917106	674,024	184,182	37.60	8,857	31.31	0.0369
2017-02-14	2016-12-31	13F	RAMBUS	COMMON	750917106	489,842	32,464	7.10	6,745	17.98	0.0309
2016-11-14	2016-09-30	13F	RAMBUS	COMMON	750917106	457,378	130,625	39.98	5,717	44.84	0.0273
2016-08-15	2016-06-30	13F	RAMBUS	COMMON	750917106	326,753	324,253	12,970.12	3,947	11,508.82	0.0196
2016-05-16	2016-03-31	13F	RAMBUS	COMMON	750917106	2,500	-51,586	-95.38	34	-94.58	0.0002
2016-02-12	2015-12-31	13F	RAMBUS	COMMON	750917106	54,086	-546,451	-90.99	627	-91.15	0.0031
2015-11-13	2015-09-30	13F	RAMBUS	COMMON	750917106	600,537	140,737	30.61	7,086	6.35	0.0374
2015-08-14	2015-06-30	13F	RAMBUS	COMMON	750917106	459,800	457,300	18,292.00	6,663	21,393.55	0.0334
2015-05-15	2015-03-31	13F	RAMBUS	COMMON	750917106	2,500	0	0.00	31	10.71	0.0002
2015-02-13	2014-12-31	13F	RAMBUS	COMMON	750917106	2,500	-65,411	-96.32	28	-96.70	0.0001
2014-11-12	2014-09-30	13F	RAMBUS	COMMON	750917106	67,911	0	0.00	848	-12.67	0.0041
2014-08-14	2014-06-30	13F	RAMBUS	COMMON	750917106	67,911	65,411	2,616.44	971	3,496.30	0.0047
2014-05-15	2014-03-31	13F	RAMBUS	COMMON	750917106	2,500	0	0.00	27	12.50	0.0001
2014-02-21	2013-12-31	13F	RAMBUS	COMMON	750917106	2,500	-1,800	-41.86	24	-40.00	0.0001
2013-11-14	2013-09-30	13F	RAMBUS	COMMON	750917106	4,300	-3,804	-46.94	40	-42.86	0.0002
2013-08-14	2013-06-30	13F	RAMBUS	COMMON	750917106	8,104	8,104		70		0.0004

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.