Driehaus Capital Management LLC

Position in TNDM — Tandem Diabetes Care Inc

CIK 938206 Chicago, IL

Position in TNDM

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

Position Value

$26,965,769

-$17,209,847 QoQ

Shares Held

1,786,996

-22.5% QoQ

Ownership

2.57%

of shares outstanding

% of Portfolio

0.16%

of 13F equity value

Holder Rank

#13

of 272 holders

Holding Since

Mar 2020

11 quarters on record

Voting authority Sole 85% Shared 0% None 15%

Healthcare · as of Jun 30, 2026

Driehaus Capital Management LLC holds $245,160,540 across 7 Medical Devices names. TNDM ranks #5 (11.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GKOS	GLAUKOS Corp	650,571	$90,923,802
2	LIVN	LivaNova PLC	516,086	$42,437,751
3	AXGN	Axogen, Inc.	707,234	$32,667,138
4	TCMD	Tactile Systems Technology Inc	937,783	$27,927,177
5	TNDM	Tandem Diabetes Care Inc This page	1,786,996	$26,965,769
6	NPCE	NeuroPace Inc	1,447,391	$22,999,042
7	CERS	Cerus Corp	424,610	$1,239,861

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$26,965,769	1,786,996	-22.5%	Shares	Sole	2026-08-14
2026-03-31	$44,175,616	2,304,414	+43.1%	Shares	Sole	2026-05-15
2025-12-31	$35,395,317	1,610,342	+107.1%	Shares	Sole	2026-02-17
2024-09-30	$32,977,591	777,590	-18.6%	Shares	Sole	2024-11-14
2024-06-30	$38,486,780	955,244	-27.5%	Shares	Sole	2024-08-15
2024-03-31	$46,650,444	1,317,437	+3024.6%	Shares	Sole	2024-05-15
2021-12-31	$6,346,525	42,164	+371.1%	Shares	Sole	2022-02-14
2020-12-31	$856,336	8,950	-97.5%	Shares	Sole	2021-02-16
2020-09-30	$40,936,045	360,670	-0.3%	Shares	Sole	2020-11-16
2020-06-30	$35,769,966	361,605	+5.8%	Shares	Sole	2020-08-14
2020-03-31	$21,993,607	341,781	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.