Driehaus Capital Management LLC

Position in TNDM — Tandem Diabetes Care Inc

CIK 938206 Chicago, IL

Position in TNDM

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

Position Value

$44,175,616

+$8,780,299 QoQ

Shares Held

2,304,414

+43.1% QoQ

Ownership

3.36%

of shares outstanding

% of Portfolio

0.33%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

10 quarters on record

Voting authority Sole 84.335280032147.ToString("F0")% Shared 0.ToString("F0")% None 15.664719967853.ToString("F0")%

Healthcare · as of Mar 31, 2026

Driehaus Capital Management LLC holds $197,472,782 across 9 Medical Devices names. TNDM ranks #2 (22.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GKOS	GLAUKOS Corp	487,912	$52,528,605
2	TNDM	Tandem Diabetes Care Inc This page	2,304,414	$44,175,616
3	LIVN	LivaNova PLC	543,717	$34,558,652
4	TCMD	Tactile Systems Technology Inc	741,914	$19,386,212
5	NPCE	NeuroPace Inc	1,451,611	$19,088,684
6	GMED	Globus Medical Inc	167,468	$14,429,042
7	AXGN	Axogen, Inc.	228,437	$7,568,117
8	TMDX	TransMedics Group, Inc.	40,114	$3,987,732

10 filing rows on record

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