Driehaus Capital Management LLC

Position in RMBS — Rambus Inc

CIK 938206 Chicago, IL

Position in RMBS

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$14,965,176

-$72,712,953 QoQ

Shares Held

173,953

-81.8% QoQ

Ownership

0.161%

of shares outstanding

% of Portfolio

0.11%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2022

8 quarters on record

Voting authority Sole 76.27922484809116.ToString("F0")% Shared 0.ToString("F0")% None 23.72077515190885.ToString("F0")%

Technology · as of Mar 31, 2026

Driehaus Capital Management LLC holds $890,389,770 across 14 Semiconductors names. RMBS ranks #9 (1.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TSM	Taiwan Semiconductor Manufacturing Co Ltd	1,264,890	$427,469,575
2	LASR	Nlight, Inc.	1,772,697	$101,079,182
3	SITM	SITIME Corp	227,965	$78,727,712
4	MTSI	MACOM Technology Solutions Holdings, Inc.	336,813	$74,796,062
5	SIMO	Silicon Motion Technology CORP	509,975	$57,265,092
6	TSEM	Tower Semiconductor Ltd	326,103	$57,224,554
7	SMTC	Semtech Corp	628,456	$48,321,981
8	LSCC	Lattice Semiconductor Corp	176,762	$16,396,443

8 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
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.