Driehaus Capital Management LLC

Position in RMBS — Rambus Inc

CIK 938206 Chicago, IL

Position in RMBS

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$19,230,707

+$4,265,531 QoQ

Shares Held

144,875

-16.7% QoQ

Ownership

0.134%

of shares outstanding

% of Portfolio

0.11%

of 13F equity value

Holder Rank

#85

of 618 holders

Holding Since

Mar 2022

9 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Technology · as of Jun 30, 2026

Driehaus Capital Management LLC holds $1,533,407,968 across 16 Semiconductors names. RMBS ranks #12 (1.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TSM	Taiwan Semiconductor Manufacturing Co Ltd	984,500	$470,167,665
2	SIMO	Silicon Motion Technology CORP	786,074	$262,022,046
3	CRDO	Credo Technology Group Holding Ltd	517,062	$140,615,010
4	LASR	Nlight, Inc.	1,986,119	$138,273,604
5	SITM	SITIME Corp	172,133	$128,335,479
6	MTSI	MACOM Technology Solutions Holdings, Inc.	251,107	$95,513,569
7	ALAB	Astera Labs, Inc.	194,619	$94,004,869
8	SMTC	Semtech Corp	419,633	$67,917,601

9 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$19,230,707	144,875	-16.7%	Shares	Sole	2026-08-14
2026-03-31	$14,965,176	173,953	-81.8%	Shares	Sole	2026-05-15
2025-12-31	$87,678,129	954,164	+23.5%	Shares	Sole	2026-02-17
2023-12-31	$52,746,466	772,842	+26.9%	Shares	Sole	2024-02-14
2023-09-30	$33,975,607	608,991	+0.2%	Shares	Sole	2023-11-14
2023-06-30	$38,991,167	607,623	+6.3%	Shares	Sole	2023-08-14
2023-03-31	$29,292,219	571,444	+50.5%	Shares	Sole	2023-05-15
2022-12-31	$13,598,561	379,636	-50.8%	Shares	Sole	2023-02-14
2022-03-31	$24,592,069	771,153	—	Shares	Sole	2022-05-16
No filing history on record for this holder in this stock.