Yorktown Management & Research Co Inc

Position in RMBS — Rambus Inc

CIK 1313559 Forest, VA

Position in RMBS

as of Jun 30, 2026 · filed Jul 23, 2026 Compact

Position Value

$657,063

+$54,853 QoQ

Shares Held

4,950

-29.3% QoQ

Ownership

0.005%

of shares outstanding

% of Portfolio

0.43%

of 13F equity value

Holder Rank

#342

of 615 holders

Holding Since

Jun 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

Yorktown Management & Research Co Inc holds $4,171,642 across 5 Semiconductors names. RMBS ranks #5 (15.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	SMTC	Semtech Corp	6,850	$1,108,672
2	MPWR	Monolithic Power Systems, Inc.	650	$898,534
3	ALGM	Allegro Microsystems, Inc.	11,300	$786,706
4	CRDO	Credo Technology Group Holding Ltd	2,650	$720,667
5	RMBS	Rambus Inc This page	4,950	$657,063

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$657,063	4,950	-29.3%	Shares	Sole	2026-07-23
2026-03-31	$602,210	7,000	0.0%	Shares	Sole	2026-04-20
2025-12-31	$643,230	7,000	0.0%	Shares	Sole	2026-01-23
2025-09-30	$729,400	7,000	0.0%	Shares	Sole	2025-10-29
2025-06-30	$448,140	7,000	0.0%	Shares	Sole	2025-08-04
2025-03-31	$362,460	7,000	-60.7%	Shares	Sole	2025-04-23
2024-12-31	$940,908	17,800	0.0%	Shares	Sole	2025-01-27
2024-09-30	$751,516	17,800	0.0%	Shares	Sole	2024-10-25
2024-06-30	$1,045,928	17,800	-8.7%	Shares	Sole	2024-07-30
2024-03-31	$1,205,295	19,500	-20.7%	Shares	Sole	2024-04-26
2023-12-31	$1,678,950	24,600	0.0%	Shares	Sole	2024-01-26
2023-09-30	$1,372,434	24,600	0.0%	Shares	Sole	2023-10-26
2023-06-30	$1,578,582	24,600	-21.9%	Shares	Sole	2023-07-28
2023-03-31	$1,614,690	31,500	0.0%	Shares	Sole	2023-04-21
2022-12-31	$1,128,330	31,500	0.0%	Shares	Sole	2023-01-26
2022-09-30	$800,730	31,500	0.0%	Shares	Sole	2022-11-04
2022-06-30	$676,935	31,500	-32.1%	Shares	Sole	2022-07-29
2022-03-31	$1,479,696	46,400	0.0%	Shares	Sole	2022-04-29
2021-12-31	$1,363,696	46,400	+136.7%	Shares	Sole	2022-02-09
2021-09-30	$435,120	19,600	0.0%	Shares	Sole	2021-11-04
2021-06-30	$464,716	19,600	+15.3%	Shares	Sole	2021-08-03
2021-03-31	$330,480	17,000	0.0%	Shares	Sole	2021-05-11
2020-12-31	$296,820	17,000	-5.6%	Shares	Sole	2021-02-11
2020-09-30	$246,420	18,000	+20.0%	Shares	Sole	2020-11-06
2020-06-30	$228,000	15,000	—	Shares	Sole	2020-08-11
No filing history on record for this holder in this stock.